Consulta: subjectFacets:"Anthracnose"
Registros recuperados: 36
Data/hora: 01/06/2024 05:53:36

Alternativas para o controle da Antracnose do açaí-solteiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: NOGUEIRA, S. R.; ANDRADE NETO, R. de C.; LUNZ, A. M. P.; COSTA, K. K. da.
A antracnose, causada por Colletotrichum gloesporioides, induz severos danos às folhas de açaizeiro (Euterpe precatoria), levando à morte de plantas, principalmente nas condições de viveiro. A doença é limitante para a produção de mudas de açaí-solteiro e consequentemente para expansão do seu cultivo. Os estudos com essa espécie ainda estão no início, sendo necessária a adoção de um conjunto de medidas para o controle eficiente da antracnose.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Açaí solteiro; Cultivos de viveros; Enfermedades y desórdenes de las plantas; Enfermedades fungales de las plantas; Antracnosis; Control biológico; Control químico; Control cultural; Açaí; Viveiro; Doença de Planta; Doença Fúngica; Antracnose; Colletotrichum Gloeosporioides; Controle Biológico; Controle Químico; Controle Genético; Controle Cultural; Euterpe precatoria; Nursery crops; Plant diseases and disorders; Fungal diseases of plants; Anthracnose; Glomerella cingulata f. sp. aeschynomene; Biological control; Chemical control; Cultural control; Genetic resistance.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1091660

Efeito da antracnose foliar na produção de grãos em genótipos de sorgo.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: COTA, L. V.; SILVA, D. D. da; COSTA, R. V. da.
bitstream/item/95065/1/circ-192.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Doença de planta; Doença fungica; Sorghum bicolor; Fungal diseases of plants; Anthracnose.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/975361

Saiba diferenciar os sintomas do oídio e da antracnose em cajueiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MARTINS, M. V. V.; SERRANO, L. A. L.; ARAUJO, F. S. A.; FREIRE, F. das C. O.
As doenças do cajueiro, como o oídio e a antracnose, manifestam--se nos mesmos órgãos da planta (folhas, flores, maturis e frutos), ocasionando certa dificuldade na diferenciação dos sintomas por parte dos produtores e técnic os profissionais da área. Os sintomas nas folhas são de mais fácil distinção. Para o oídio, os sintomas são caracterizados pelo crescimento do fungo de coloração ?cinza? nas superfícies das folhas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Caju; Antracnose; Oídio; Cashew fruit; Oidiopsis; Anthracnose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124366

Método para identificação dos agentes causais da ramulose e antracnose em algodoeiro pela tecnologia de imagens químicas.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MEDEIROS, E. P. de; AIRES, P. S. R.; GAMBARRA NETO, F. F.; JESUS, H. I. de; COUTINHO, W. M.; ARAUJO, A. E. de; SILVA, G. F. da; GOMES, J. P.
Um novo método foi desenvolvido para diferenciação de forma precisa e rápida dos fungos que causam a antracnose (Colletotrichum gossypii - CG) e ramulose (Colletotrichum gossypii var. cephalosporioides - CGC) em algodoeiro, crescidos em meio de cultura e utilizando os conceitos da Tecnologia de Imagens Químicas (TIQ) na região do Infravermelho Próximo (NIR). Foram empregados cinco isolados de CG e 46 de CGC. Os diferentes isolados de CG e CGC foram cultivados em meio Czapek-agar com 12h de fotoperíodo durante 15 dias. As medidas espectrais foram realizadas entre 1000 nm a 2500 nm usando uma lente de 50 mm. Nessa região espectral foi realizada a atribuição de grupos químicos específicos característicos de CG e CGC. Um modelo de reconhecimento de padrão foi...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Algodão; Fungo; Antracnose; Cotton; Fungus physiology; Anthracnose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137371

Diversidade genética estimada através de marcadores ISSR de Colletotrichum graminicola no Brasil.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: COSTA, R. V. da; SILVA, D. D. da; COTA, L. V.; PARREIRA, D. F.; ZAMBOLIM, L.; GOMES, E. A.; LANA, U. G. de P.; NEVES, W. dos S.; FIGUEIREDO, J. E. F.
A antracnose do milho causada pelo fungo Colletotrichum graminicola é uma das principais doenças da cultura no Brasil e no mundo, atacando praticamente todas as partes da planta. Neste trabalho foi avaliada a variabilidade genética de 95 isolados monospóricos de C. graminicola, provenientes dos estados brasileiros de Goiás, Minas Gerais, Santa Catarina, São Paulo, Paraná e Rio Grande do Sul. O DNA de cada isolado foi amplificado via PCR, utilizando-se 15 primers ISSR (do inglês, inter-simpled sequence repeat) como marcadores moleculares. Os fragmentos de DNA gerados pelo PCR-ISSR foram avaliados por eletroforese em gel de agarose com a visualização da posição das bandas formadas nos géis. Do total de 15, nove primers foram selecionados em função do maior...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Variabilidade genética; UPGMA; Marcador molecular; Antracnose; Zea mays; Doença de planta; Plant diseases and disorders; Anthracnose.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1012069

Antracnose.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CORDEIRO, M. V. M.; LIMA, C. S.; SILVA, C. de F. B. da.
bitstream/item/210990/1/CLV19017.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Antracnose; Tratamento Fitossanitário; Pós-Colheita; Doença; Folha; Ramo; Inflorescência; Fruto; Anthracnose; Branches; Inflorescences; Fruits.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117841

Alternativas limpas para controle da podridão pós-colheita causada por Colletotrichum em banana.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: OLIVEIRA, E. S. de; VIANA, F. M. P.; MARTINS, M. V. V.; PESSOA, M. N. G.
bitstream/item/103333/1/BPD13012.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Controle natural; Natural control.; Musa sp; Antracnose; Controle Biológico.; Anthracnose; Biological control.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982056

High species diversity in Colletotrichum associated with citrus diseases in Europe
Provedor de dados: Naturalis Digital Academic Repository
Autores: Guarnaccia, V.; Groenewald, J.Z.; Polizzi, G.; Crous, P.W&gt;.
Species of Colletotrichum are considered important plant pathogens, saprobes, and endophytes on a wide range of plant hosts. Several species are well-known on citrus, either as agents of pre- or post-harvest infections, such as anthracnose, postbloom fruit drop, tear stain and stem-end rot on fruit, or as wither-tip of twigs. In this study we explored the occurrence, diversity and pathogenicity of Colletotrichum spp. associated with Citrus and allied genera in European orchards, nurseries and gardens. Surveys were carried out during 2015 and 2016 in Greece, Italy, Malta, Portugal and Spain. A total of 174 Colletotrichum strains were isolated from symptomatic leaves, fruits, petals and twigs. A multi-locus phylogeny was established based on seven genomic...
Tipo: Article / Letter to the editor
Palavras-chave: Anthracnose; Citrus; Multi-locus sequence typing; Pathogenicity.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/630359

Scanning electron microscopy of the interaction between Cryptococcus magnus and Colletotrichum gloeosporioides on papaya fruit
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Capdeville,Guy de; Souza Júnior,Manoel Teixeira; Santos,Jansen Rodrigo Pereira; Miranda,Simoni Paula; Caetano,Alexandre Rodrigues; Falcão,Rosana; Gomes,Ana Cristina Menezes Mendes.
The objective of this work was to investigate possible modes of action of the yeast Cryptococcus magnus in controlling anthracnose (Colletotrichum gloeosporioides) on post harvested papaya fruits. Scanning electron microscopy was used to analyze the effect of the yeast on inoculations done after harvest. Results showed that C. magnus is able to colonize wound surfaces much faster than the pathogen, outcompeting the later for space and probably for nutrients. In addition, C. magnus produces a flocculent matrix, which affects hyphae integrity. The competition for space and the production of substances that affect hyphae integrity are among the most important modes of action of this yeast.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya; Anthracnose; Antagonist yeast; Biological control; Competition.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007001100004

Lantana camara: Phytochemical Analysis and Antifungal Prospective
Provedor de dados: Planta Daninha
Autores: BASHIR,S.; JABEEN,K.; IQBAL,S.; JAVED,S.; NAEEM,A.
ABSTRACT: In the current study phytochemical analysis and in vitro antifungal potential of fruits, leaves and stem of Lantana camara L. were studied. The phytochemical analysis indicated the presence of alkaloids, flavonoids, tannins, saponins, glycosides and terpenoids in fruit, stem and leaves of L. camara. The in vitro antifungal activity of fruit, stem and leaves of L. camara was tested against Colletotrichum gloeosporioides Penz. Different concentrations (1-5%) of methanolic extract of all the selected parts of L. camara were applied in vitro against the test fungus. The results of in vitro experiment revealed that higher concentration of methanolic fruit extract (5%) significantly reduced the biomass C. gloeosporioides up to 66%. This effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Bioactivity; Colletotrichum gleosporioides; GC-MS; Phytochemicals.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100167

Ozone slows down anthracnose and increases shelf life of papaya fruits
Provedor de dados: Revista Brasileira de Fruticultura
Autores: Silva Neto,Osvaldo Pereira da; Pinto,Elaine Vasconcelos da Silva; Ootani,Márcio Akio; Silva Junior,Joel Lima da; Lima,Jânia Lilia da Silva Bentes; Sousa,Aline Ellen Duarte de.
Abstract  This study investigated the effect of ozone on papaya postharvest conservation, aiming at controlling anthracnose and increasing fruit shelf life. The experiment was conducted at the Laboratory of Product Technology, Federal University of Amazonas, Manaus-AM. Fruits were treated with 0; 0.6; 1.5 and 3.3 ppm ozone and commercial fungicide. They were then stored at room temperature (27 ± 2 °C and 65 ± 5% RH). Incidence, severity, number and size of anthracnose lesions were determined, as well as postharvest quality by assessing shelf life; accumulated and daily fresh mass loss (%), peel color, electrolyte leakage (%), soluble solids (%), titratable acidity (g 100 g-1), soluble solids / titratable acidity ratio, pH and vitamin C (mg 100 g-1). Ozone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya L.; Alternative treatment; Anthracnose; Postharvest.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500403

Advances in research and development of mango industry
Provedor de dados: Revista Brasileira de Fruticultura
Autores: Bally,Ian S. E.
World mango production is spread over 100 countries that produce over 34.3 million tons of fruit annually. Eighty percent of this production is based in the top nine producing nations that also consume upward of 90% of their production domestically. One to 2 percent of fruit is traded internationally in to markets in the European Community, USA, Arabian Peninsula and Asia. This paper outlines some of the recent research and development advances in mango breeding and genomics, rootstock development, disease management and harvest technologies that are influencing the production and quality of mango fruit traded domestically and internationally.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Australia; Breeding; Molecular markers; Rootstocks; Anthracnose; Harvesting; Sap-burn.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000500008

TWIG BLIGHT AND DEFOLIATION CAUSED BY Colletotrichum horii IN PERSIMMONS IN BRAZIL
Provedor de dados: Revista Brasileira de Fruticultura
Autores: MAY DE MIO,LOUISE LARISSA; SILVA,FRANCINÉIA ALEXANDRE DA; BLOOD,RENATO YOUNG; FIGUEIREDO,JOSIANE APARECIDA GOMES.
Persimmon anthracnose has been a great concern to Brazilian producers. This study aimed to identify and characterized the causal species from Brazilian persimmons byassessing morphological and molecular characteristics and pathogenicity tests. Five fungal isolatesobtained from diseased twigs and fruits were identified as Colletotrichum horii, based on morphologicalcharacteristics and nucleotide sequences of ITS region. Inoculation tests revealed that the fungal isolates caused necrotic spots followed by defoliation of leaves, blight of twigs and buds of potted persimmon plants.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Colletotrichum gloeosporioides; Diospyros; Koch’s postulate.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452015000100256

Reaction of dwarf cashew clones to Colletotrichum gloeosporioides isolates in controlled environment
Provedor de dados: Scientia Agricola
Autores: López,Ana Maria Queijeiro; Lucas,John Alexander.
The cashew (Anacardium occidentale L.) crop is an important source of income for the population of the Brazilian Northeast, and anthracnose disease caused by Colletotrichum gloeosporioides leads to significant production loss. However, there is little information on either the host resistance or the variation in the aggressiveness of the pathogen under controlled environment. The reaction of commercial (CCP-06, CCP-09, CCP-76 and CCP-1001) and one non-commercial (CAP-14) dwarf cashew clones was assessed against 36 isolates of this fungus controlled environmental conditions. All the isolates, including those from hosts other than cashew, were able to cause lesions on leaves and stems of most clones, albeit to different degrees. Clone CCP-06 was the most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardium occidentale; Anthracnose; Resistance; Aggressiveness.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200016

Common bean genotypes for agronomic and market-related traits in VCU trials
Provedor de dados: Scientia Agricola
Autores: Chiorato,Alisson Fernando; Carbonell,Sérgio Augusto Morais; Bosetti,Fátima; Sasseron,Graziele Ramos; Lopes,Rodrigo Lorencetti Tunes; Azevedo,Cleber Vinícius Giaretta.
Value for Cultivation and Use (VCU) trials are undertaken when evaluating improved common bean (Phaseolus vulgaris L.) lines, and knowledge of agronomic and market-related traits and disease reaction is instrumental in making cultivar recommendations. This study evaluates the yield, cooking time, grain color and reaction to anthracnose (Colletotrichum lindemuthianum), Fusarium wilt (Fusarium oxysporum f. sp. phaseoli) and Curtobacterium wilt (Curtobacterium flaccumfaciens pv. flaccumfaciens) of 25 common bean genotypes derived from the main common bean breeding programs in Brazil. Seventeen VCU trials were carried out in the rainy season, dry season and winter season from 2009 to 2011 in the state of São Paulo. Analyses of grain color and cooking time were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Fusarium wilt; Curtobacterium wilt; Anthracnose; Selection.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000100034

Novel insights into the early stages of infection by oval conidia of Colletotrichum sublineolum
Provedor de dados: Scientia Agricola
Autores: Souza-Paccola,Ednéia Aparecida de; Bomfeti,Cleide Aparecida; Tanaka,Francisco André Ossamu; Massola Junior,Nelson Sidnei; Colauto,Nelson Barros; Figueiredo,José Edson Fontes; Paccola-Meirelles,Luzia Doretto.
Anthracnose, caused by Colletotrichum sublineolum Henn. ex Sacc. &amp; Trotter, is one of the most important sorghum [Sorghum bicolor (L.) Moench] diseases in Brazil. This fungus exhibits conidial dimorphism, producing either falcate or oval conidia on solid and liquid media, respectively. We compared patterns of the initial infection events by these two types of conidia on sorghum leaves using light microscopy and scanning electron microscopy. The infection events during the first 24 h were similar for both oval and falcate conidia. Globose and melanized apressoria were formed at 24 h after inoculation (hai) regardless of the conidia type. Dense mycelium and oval conidia developed from germinated falcate conidia at 32 hai. Hyphal mass displaying acervuli...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sorghum bicolor; Anthracnose; Conidial dimorphism; Infection biology; Secondary sporulation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000400351

Development of Colletotrichum gloeosporioides isolated from green pepper in different culture media, temperatures, and light regimes
Provedor de dados: Scientia Agricola
Autores: Mello,Alexandre Furtado Silveira; Machado,Andressa Cristina Zamboni; Bedendo,Ivan Paulo.
Control of anthracnose in green pepper involves the use of resistant varieties and/or fungicides. The selection of varieties and efficient products demands great amounts of conidia as inoculum. It is thus necessary to optimize the production of Colletotrichum gloeosporioides conidia in the laboratory, establishing the best conditions for fungus development. The present study aimed at determining the most favorable culture media, temperature, and light conditions for the production of fungus inoculum. The fungus was isolated from green pepper fruits (Capsicum annuum L.) and transferred to four culture media (PDA, oat, filtered pepper extract, and autoclaved pepper extract), under different temperatures (15, 20, 25, 30, and 35ºC) and light conditions (24h...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Anthracnose; Mycelium growth; Sporulation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500013

การใช้เซลล์แขวนลอยและสารสกัดหยาบของแบคทีเรีย Bacillus licheniformis BFP011 ในการควบคุมโรคแอนแทรคโนสบนผลพริก
Provedor de dados: Thai Agricultural Research Repository
Autores: Pattamawan Maneesuwan; Pisan Sirithorn.
The five concentrations of cell suspension of Bacillus licheniformis BFP011 each applied to reduce the disease symptom caused by Colletotrichum capsici using the detached fruit technique with Completely Randomized Design (CRD). The statistical analysis indicated that inoculation of cell suspension prior to inoculation of C. capsici gave more disease severity reduction than inoculation of C. capsici prior to inoculation of cell suspension. The optimal concentration that reduced disease severity; without adverse effect was at 1x104-1x105 cfu/ml prior to inoculation of C. capsici for 24 hours as disease severity was reduced by 35.8% and 34.8%, respectively. The cell suspension at the concentrations between 1x106 to 1x108 cfu/ml induced fruit rot to 10-50%....
Tipo: PhysicalObject
Palavras-chave: Pepper; Anthracnose; Plant diseases; Fungi; Colletotrichum capsici; Fungus control; Plant disease control; Bacillus licheniformis; BFP011; Cell suspension; Crude extract; Disease severity; พริก; โรคแอนแทรคโนส; โรคพืช; เชื้อรา; การควบคุมโรค; จุลินทรีย์ปฏิปักษ์; เชื้อแบคทีเรีย; สารสกัดหยาบ; เซลล์แขวนลอย.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5795

ผลของแบคทีเรีย Bacillus licheniformis BFP011 ในการยับยั้งเชื้อรา Colletotrichum capsici สาเหตุโรคแอนแทรคโนสของพริก
Provedor de dados: Thai Agricultural Research Repository
Autores: Pattamawan Maneesuwan; Pisan Sirithorn.
Capability of 11 isolates of Bacillus spp. previously reported as antagonistic against some plant pathogens was tested. This is to inhibit the growth of four isolates of Colletotrichum capsici isolated from stalk, leaf, fruit and 158 ci/KU, by employing Completely Randomized Design (CRD) consisting of 11 treatments with 4 replications. The results showed that B. licheniformis BFP011 exhibited the most promising inhibition. Similarly, the evaporated crude extract produced by B. licheniformis BFP011 was able to inhibit greatly growth of C. capsici. When mycelium and spores of C. capsici were immersed in cell suspension at 1x108 cfu/ml and the evaporated crude extract at 1,000 mg/ml of B. licheniformis BFP011 for 24 hours. It is obvious that abnormal hypha...
Tipo: PhysicalObject
Palavras-chave: Pepper; Anthracnose; Plant diseases; Fungi; Colletotrichum capsici; Fungus control; Plant disease control; Bacillus licheniformis; BFP011; Cell suspension; Crude extract; Disease severity; พริก; โรคแอนแทรคโนส; โรคพืช; เชื้อรา; การควบคุมโรค; จุลินทรีย์ปฏิปักษ์; เชื้อแบคทีเรีย; สารสกัดหยาบ; เซลล์แขวนลอย; โรคกุ้งแห้ง.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5796

Progress report in plant pathology for 1981
Provedor de dados: Thai Agricultural Research Repository
Autores: Udom Pupipat; Thammasak Sommartya; Kitti Choonhawongse; Kittipong Pongboon; Prachum Jutawantana.
11 ill., 8 tables
Palavras-chave: Corn; Maize; Sorghum; Pathology; Downy mildew; Peronosclerospora sorghi; Varieties; Disease resistance; Leaf diseases; Anthracnose; Grey leaf spot; Leaf blight; Rusts; Plant diseases; Disease control; ข้าวโพด; ข้าวฟ่าง; โรคพืช; โรคราน้ำค้าง; โรคราบนช่อข้าวฟ่าง; โรคใบไหม้; โรคราสนิม; โรคใบจุด; โรคแอนแทรคโนส; โรคใบจุด; การคลุกเมล็ดด้วยสารเคมี.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4055

Sorghum diseases in Thailand
Provedor de dados: Thai Agricultural Research Repository
Autores: Sahas Tansawasd.
Palavras-chave: Corn; Maize; Sorghum; Plant diseases; Charcoal rot; Anthracnose; Leaf blight; Grey leaf spot; Zonate leaf spot; Fusarium stalk rot; Tar spot; Rusts; ข้าวโพด; ข้าวฟ่าง; โรคพืช; โรคราน้ำค้าง; โรคราบนช่อข้าวฟ่าง; โรคทางใบ; โรคลำต้นเน่า; โรคแอนแทรคโนส; โรคใบไหม้; โรคใบจุด; โรคราสนิม.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4017

Differences in competitive ability among races of Colletotrichum graminicola in mixtures
Provedor de dados: Tropical Plant Pathology: fitopatologia brasileira
Autores: CASELA,CARLOS R.; FERREIRA,ALEXANDRE S.; SANTOS,FREDOLINO G.
Mixtures of races of Colletotrichum graminicola, causing sorghum (Sorghum bicolor) anthracnose and differing in their virulence range, were inoculated for five and six generations on the susceptible sorghum cultivar BR009 (Tx623), in two experiments in a greenhouse. In each generation a sample of 50 single spore isolates was obtained and inoculated on a standard differential set to determine the proportion of each race in the mixture. Isolates of the race 30A, with the narrowest virulence range, predominated over isolates of the more complex races 31B, 31C and 31E indicating the existence of differences in the survival ability among races of this pathogen.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Colletotrichum graminicola; Virulence; Fitness; Sorghum bicolor; Anthracnose.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582001000200019

AFLP markers differentiate isolates of Colletotrichum gossypii from C. gossypii var. cephalosporioides
Provedor de dados: Tropical Plant Pathology: fitopatologia brasileira
Autores: Silva-Mann,Renata; Vieira,Maria G. G. Carvalho; Machado,José C.; Bernardino Filho,José Roberto; Salgado,Kalinka C. C.; Stevens,Mikel R.
Fungal diseases in cotton (Gossypium hirsutum), such as anthracnose caused by Colletotrichum gossypii and ramulose caused by C. gossypii var. cephalosporioides, are responsible for large yield losses. These pathogens are seed borne and morphologically similar although they induce different symptoms, which can lead to misdiagnosis using the blotter testing method. The present study was carried out to assess the viability of using Amplified Fragment Length Polymorphism (AFLP) markers to differentiate these pathogens. Five isolates, for each pathogen, were classified according to pathogenicity on cotton plants, and mycelial growth morphology. Conidial suspensions were sprayed on 30-day-old cotton plants and the symptoms assessed ten and 40 days after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Molecular markers; Anthracnose; Ramulose; Cotton diseases; Seed borne pathogens.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000200011

Controle de Colletotrichum gloeosporioides em mamoeiro, utilizando extratos vegetais, indutores de resistência e fungicida - DOI: 10.4025/actasciagron.v30i3.3500
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Nascimento, Luciana Cordeiro do; Universidade Federal da Paraíba; Nery, Aparecida Rodrigues; UFP; Rodrigues, Luís Nery; UFCG.
O presente trabalho teve como objetivo avaliar o controle de doenças do mamoeiro, utilizando extratos vegetais (alho, angico e manjericão), óleos naturais (urucum e algodão), indutores de resistência (Bion®, Ecolife® e Agro-mos®) e fungicida Mancozeb/Dithane. O Experimento I consistiu-se da avaliação dos tratamentos sobre o crescimento micelial de Colletotrichum gloeosporioides, in vitro; no Experimento II, efetuou-se a inoculação artificial do fungo sobre frutos sadios de mamão e avaliou-se a severidade da podridão peduncular, por meio de escala de notas e, no Experimento III, aplicaram-se os tratamentos em mudas de mamoeiro, inoculadas artificialmente com C. gloeosporioides, avaliando-se a antracnose com escala de notas. Os resultados obtidos...
Palavras-chave: 5.01.00.00-9 Agronomia Carica papaya L.; Antracnose; Produtos naturais; Pós-colheita Fitossanidade Carica papaya L.; Anthracnose; Natural products; Postharvest.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3500

Screening of Colletotrichum (Ascomycota) isolates, causal agents of Soybean Anthracnose, for Laccase production
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Levin,L.; Ramos,A .M.; Parisi,M .; Gally,M.
Colletotrichum truncatum is the most common pathogen fungus associated with soybean anthracnose. Although the lignin-degrading enzyme laccase has been implicated in pathogenicity of a wide range of plant pathogenic fungi, its biological role in the Colletotrichum -soybean disease system is unknown. The extent of the infection in our country led us to examine laccase production in Argentinean Colletotrichum strains isolated from diseased soybean plants from different geographic locations. Ten strains (eight of them identified as C. truncatum) , were screened for in vitro laccase production. Only six of the isolates, all of them C. truncatum , produced laccase activity when cultured on a defined medium based on pectin and asparagine as carbon and nitrogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Colletotrichum; Laccase; SDS-PAGE; Soybean.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722007000100010

Inheritance of resistance to races 69 and 453 of Colletotrichum lindemuthianum in the common bean
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Poletine,Juliana P.; Gonçalves-Vidigal,M.C.; Vidigal Filho,Pedro S.; Scapim,Carlos Alberto; Silvério,Lucas; Thomazella,Cláudia.
The cultivars, AB 136 and G 2333 both resistant to Colletotrichum lindemuthianum races 69 and 453, were crossed with the cultivars Michelite and Perry Marrow (susceptible to both races), with Dark Red Kidney and Cornell 49242 (resistant to both races) and F1 and F2 generations were obtained. Plants were inoculated using a spore suspension at 1.2 x 10(6) concentration. The reaction of F1 and F2 populations showed that Dark Red Kidney, Cornell 49242 and AB 136 cultivars had the dominant genes A (Co-1), Are (Co-2) and Co-6, respectively, was conferring resistance to races 69 and 453. The segregation data obtained from F2 populations indicated that G 2333 carried two dominant resistance genes Co-5 gene and another one Co-7 for 69 and 453 races. The dominant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Colletotrichum lindemuthianum; Anthracnose; Resistance.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500006

Characterization of Colletotrichum lindemuthianum isolates using differential cultivars of common bean in Santa Catarina State, Brazil
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Gonçalves-Vidigal,Maria Celeste; Thomazella,Claudia; Vidigal Filho,Pedro Soares; Kvitschal,Marcus Vinícius; Elias,Haroldo Tavares.
In 2003 and 2004, 32 isolates of Colletotrichum lindemuthianum obtained from the infected plants of field-grown common bean (Phaseolus vulgaris L.) in Santa Catarina state, Brazil were analyzed based on the virulence to 12 differential cultivars of Phaseolus vulgaris L.. Thirteen distinct races were identified, six of which had not been reported previously in Santa Catarina. This is the first report of the occurrence of 67, 83,101,103,105, and 581 races of C. lindemuthianum. Race 65 was most common (34%). All the isolates were compatible to the cultivars Michelite and Mexico 222. Some isolates infected not only differential cultivar of Mesoamerican origin, but also the ones of Andean origin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Common bean; New races; Phaseolus vulgaris L.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500002

Colletotrichum isolates related to Anthracnose of cashew trees in Brazil: morphological and molecular description using LSU rDNA sequences
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Lopez,Ana Maria Queijeiro; Lucas,John Alexander.
Thirty six isolates of fungi obtained from anthracnose lesions of cashew and associated host plants in Brazil, were compared by their cultural, morphological and partial sequences of the 28S ribosomal DNA characters. They showed a high degree of cultural variability. The average mycelial growth rate on all tested media ranged from 10.2-13.3 mm/day between the isolates. Most of them produced perithecia (sterile and fertile) and some produced setae (sterile and fertile). All the isolates produced acervuli with predominantly cylindrical conidia (12.4-17.7 µmX 4.8-6.0 µm in width) with round ends, which became septate on germination, and produced unlobed or slightlylobed appressoria. Comparison of the D2 domain of the large subunit (LSU) rDNA sequences with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Inflorescence blight; Colletotrichum; RDNA; Cashew; Anacardium occidentale.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400001

Molecular Analysis in the differentiation of Colletotrichum gloeosporioides isolates from the cashew and mango trees
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Serra,Ilka Márcia Ribeiro de Souza; Menezes,Maria; Coelho,Rildo Sartori Barbosa; Ferraz,Gabriela Moraes Guerra; Montarroyos,Angélica Virginia Valois; Martins,Luiza Suely Semem.
The aim of the present work was to analyze the molecular methods in the differentiation of Colletotrichum gloeosporioides isolates obtained from the cashew and mango trees. The different molecular taxonomic methods used proved to be efficient regarding intraspecific characterization. Similarly, molecular methods also proved to be efficient in differentiation of the C. gloeosporioides isolates in relation to host specificity. In the analysis of the ITS sequence of the ribosomal DNA, all the isolates amplified with the CgInt and ITS4 primers, confirming that they pertained to C. gloeosporioides. The results from this study suggested that methods based on the pathogenicity, isozyme analysis and RAPD were effective in differentiating C. gloeosporioides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardium occidentale; Anthracnose; ITS-rDNA; Mangifera indica.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000600004

The potential of compounds isolated from Xylaria spp. as antifungal agents against anthracnose
Provedor de dados: Brazilian Journal of Microbiology
Autores: Elias,Luciana M.; Fortkamp,Diana; Sartori,Sérgio B.; Ferreira,Marília C.; Gomes,Luiz H.; Azevedo,João L.; Montoya,Quimi V.; Rodrigues,André; Ferreira,Antonio G.; Lira,Simone P.
ABSTRACT Anthracnose is a crop disease usually caused by fungi in the genus Colletotrichum or Gloeosporium. These are considered one of the main pathogens, causing significant economic losses, such as in peppers and guarana. The current forms of control include the use of resistant cultivars, sanitary pruning and fungicides. However, even with the use of some methods of controlling these cultures, the crops are not free of anthracnose. Additionally, excessive application of fungicides increases the resistance of pathogens to agrochemicals and cause harm to human health and the environment. In order to find natural antifungal agents against guarana anthracnose, endophytic fungi were isolated from Amazon guarana. The compounds piliformic acid and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2-Hexylidene-3-methylbutanedioic acid; Amazon; Anthracnose; Plant pathogen.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400840

Control of Colletotrichum gloeosporioides (penz.) Sacc. In yellow passion fruit using Cymbopogon citratus essential oil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Anaruma,Nina Duarte; Schmidt,Flávio Luís; Duarte,Marta Cristina Teixeira; Figueira,Glyn Mara; Delarmelina,Camila; Benato,Eliane Aparecida; Sartoratto,Adilson.
The use of antibiotics in agriculture is limited when compared to their applications in human and veterinary medicine. On the other hand, the use of antimicrobials in agriculture contributes to the drug resistance of human pathogens and has stimulated the search for new antibiotics from natural products. Essential oils have been shown to exert several biological activities including antibacterial and antifungal actions. The aim of this study was to determine the activity of 28 essential oils from medicinal plants cultivated at CPMA (Medicinal and Aromatic Plants Collection), CPQBA/UNICAMP, against Colletotrichum gloeosporioides (Penz.) Sacc., the anthracnose agent in yellow passion fruit (Passiflora edulis Sims f. flavicarpa Deg), as well as evaluating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yellow passion fruit; Colletotrichum gloeosporioides; Anthracnose; Antimicrobial activity; Minimal inhibitory concentration.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100012

Vegetative compatibility and heterokaryon formation between different isolates of Colletotrichum lindemuthianum by using the nit mutant system
Provedor de dados: Brazilian Journal of Microbiology
Autores: Carvalho,Camila Rodrigues de; Mendes-Costa,Maria Cristina.
Colletotrichum lindemuthianum, the causative agent of bean anthracnose, is one of the most common pathogens leading to expressive damage to plants beyond presenting noticeable variability. The knowledge on vegetative compatibility groups (VCGs) is of particular interest in asexual fungi as they subdivide the population in groups that can exchange genetic information via heterokaryosis and the parasexual cycle. Among the techniques used in studies about vegetative compatibility groups, the obtainment of nit mutants is apparent. This paper is aimed at obtaining heterokaryons between different isolates of C. lindemuthianum, grouping them in VCGs and evaluating their genetic variability by using the nit mutants system. Nit mutants were obtained from 20 single...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colletotrichum lindemuthianum; Anthracnose; Heterokaryosis; Nit mutants; VCG.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100044

Template preparation for rapid PCR in Colletotrichum lindemuthianum
Provedor de dados: Brazilian Journal of Microbiology
Autores: Roca,M. Gabriela; Davide,Lisete C.; Wheals,Alan E.
Isolation of DNA for PCR is time-consuming and involves many reagents. The aim of this work was to optimise a rapid and easy PCR methodology without previous DNA isolation. Different strains of the phytopathogenic fungus Colletotrichum lindemuthianum were used. Protoplasts were generated using lytic enzymes under high incubation temperatures using different methodologies to obtain the template. A rapid (10 minute) methodology was successful for smaller amplicons (&lt;750 bp).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Hygromycin resistance; Internal transcribed spacer; Rapid screening; PCR methodology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100003

Partial purification of elicitors from Lentinula edodes basidiocarps protecting cucumber seedlings against Colletotrichum lagenarium
Provedor de dados: Brazilian Journal of Microbiology
Autores: Di Piero,Robson M.; Wulff,Nelson A.; Pascholati,Sérgio F.
The shiitake mushroom (Lentinula edodes) has been used in research involving the prevention and the control of human and plant diseases. In cucumber plants, treated with aqueous extracts from mushroom basidiocarps, there was a reduction in anthracnose severity caused by Colletotrichum lagenarium, and an increase in peroxidase activity in the leaves. With the aim of obtaining molecules of agronomic interest, the crude aqueous extract from L. edodes basidiocarp was fractioned with ammonium sulfate. The fraction corresponding to 40-80% of saturation (p40-80), the most effective in reducing anthracnose on cucumber cotyledons, was submitted to anion exchange chromatography (AEC). After AEC, six protein peaks were obtained and the peak V, containing 34% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shiitake; Anthracnose; Peroxidase.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200015

Induction of chalcone synthase and phenylalanine ammonia-lyase by salicylic acid and Colletotrichum lindemuthianum in common bean
Provedor de dados: Brazilian Journal of Plant Physiology
Autores: Campos,Ângela Diniz; Ferreira,Alfredo Gui; Hampe,Magdolna Maria Vozári; Antunes,Irajá Ferreira; Brancão,Nely; Silveira,Expedito P.; Silva,João Batista da; Osório,Vera Algayer.
The activities of the enzymes chalcone synthase (CHS) and phenylalanine ammonia-lyase (PAL) were measured in leaf extracts obtained from four cultivars of the common bean (AB 136, Rio Tibagi, Carioca and Macanudo). Two stages of plant development were examined: plantlets (V2) and the onset of blooming (R6). Initially, the plants were either treated with salicylic acid or inoculated with the delta race of Colletotrichum lindemuthianum (inductive fungus) and after three days they were evaluated for enzyme activity. Afterwards, all plants were inoculated (challenged) with the virulent pathotype 33/95 of C. lindemuthianum except for the water control. Five days later, the activities of PAL and CHS were evaluated. There were significant changes in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthracnose; Phaseolus vulgaris; Systemic acquired resistance.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202003000300001

Factors affecting the production and regeneration of protoplasts from Colletotrichum lindemuthianum
Provedor de dados: Ciência e Agrotecnologia
Autores: Ishikawa,Francine Hiromi; Barcelos,Quélen de Lima; Souza,Elaine Aparecida de; Dias,Eustáquio Souza.
The present work reports factors affecting the production and regeneration of protoplasts from Colletotrichum lindemuthianum. The usefulness of protoplast isolation is relevant for many different applications and has been principally used in procedures involving genetic manipulation. Osmotic stabilizers, lytic enzymes, incubation time and mycelial age were evaluated in terms of their effects on protoplast yield. The optimal condition for protoplast production included the incubation of young mycelia (48 h) in 0.6 mol l-1 NaCl as the osmotic stabilizer, with 30 mg ml-1 Lysing Enzymes from Trichoderma harzianum for 3 h of incubation. In these conditions protoplasts production was higher than 10(6) protoplatos ml-1 in the digestion mixture, number suitable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protoplast formation; Lytic enzyme; Anthracnose; Osmotic stabilizer; Filamentous fungi.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000100009