Consulta: subjectFacets:"Trichoderma harzianum"
Registros recuperados: 34
Data/hora: 03/06/2024 11:29:43

Etiología y manejo de Phytophthora cinnamomi (Rands) en aguacate en Michoacán.
Provedor de dados: 32
Autores: Fierro Corrales, Dagoberto.
El estado de Michoacán es el principal productor y exportador de aguacate cv. Hass (Persea americana Mill) en México y en el mundo y uno de sus principales problemas fitosanitarios es “la tristeza del aguacatero”, causada por el oomyceto Phytophthora cinnamomi Rands. La tristeza del aguacatero se intentó reducir con un manejo integrado parcial del aguacate (MIA) aplicado durante ocho meses y consistente en dos aplicaciones al suelo de vermicompost, seis de ácido fosfórico y cuatro de Trichoderma harzianum en un huerto del municipio de Uruapan, Mich. El % de raíces infectadas por P. cinnamomi al inicio del experimento (37.9%) bajó a 6.6% en el MIA, en el testigo subió de 26.9% al inicio a 30.2% al final. El crecimiento medio de brotes vegetativos fue de 8.4...
Palavras-chave: Trichoderma harzianum; Evaluación de severidad; Manejo integrado de plagas y de cultivos; Pudrición radical; Tristeza del aguacate; Severity evaluation; Integrated pest management; Root rot; Avocado tristeza; Fitopatología; Maestría.
Ano: 2011
URL: http://hdl.handle.net/10521/578

Etiología y manejo de Phytophthora cinnamomi (Rands) en aguacate en Michoacán.
Provedor de dados: 32
Autores: Fierro Corrales, Dagoberto.
El estado de Michoacán es el principal productor y exportador de aguacate cv. Hass (Persea americana Mill) en México y en el mundo y uno de sus principales problemas fitosanitarios es “la tristeza del aguacatero”, causada por el oomyceto Phytophthora cinnamomi Rands. La tristeza del aguacatero se intentó reducir con un manejo integrado parcial del aguacate (MIA) aplicado durante ocho meses y consistente en dos aplicaciones al suelo de vermicompost, seis de ácido fosfórico y cuatro de Trichoderma harzianum en un huerto del municipio de Uruapan, Mich. El % de raíces infectadas por P. cinnamomi al inicio del experimento (37.9%) bajó a 6.6% en el MIA, en el testigo subió de 26.9% al inicio a 30.2% al final. El crecimiento medio de brotes vegetativos fue de 8.4...
Palavras-chave: Trichoderma harzianum; Evaluación de severidad; Manejo integrado de plagas y de cultivos; Pudrición radical; Tristeza del aguacate; Severity evaluation; Integrated pest management; Root rot; Avocado tristeza; Fitopatología; Maestría.
Ano: 2011
URL: http://hdl.handle.net/10521/578

Sugarcane bagasse as feedstock for cellulase production by Trichoderma harzianum in optimized culture medium
Provedor de dados: 69
Autores: Rocha,Vanessa Alves Lima; Maeda,Roberto Nobuyuki; Santa Anna,Lidia Maria Melo; Pereira,Nei.
This work aimed at the production of cellulases from pretreated sugarcane bagasse by the filamentous fungus Trichoderma harzianum IOC 3844 and their application in the hydrolysis of this same substrate, for a future use in second-generation ethanol production. The production of cellulases was optimized, which resulted in high enzymatic activities after 42 hrs of process in an instrumented bioreactor (CMCase 27,017 U x L-1; FPase 1,225 U x L-1; and &amp;#946;-glucosidase 609 U x L-1). The enzymatic extract was concentrated by using a hollow fiber membrane filtration system. The concentrated extract was applied in the hydrolysis of pretreated sugarcane bagasse, after 28 hrs of enzymatic reaction, displaying a similar catalytic performance of that attained...
Tipo: Journal article
Palavras-chave: Electrophoresis; Enzymatic hydrolysis; Second generation ethanol; Trichoderma harzianum.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000500012

Formas de mecanização e manejo do solo para a cultura da batata II - desenvolvimento vegetativo
Provedor de dados: 70
Autores: Saito,Larissa R.; Jadoski,Sidnei O.; Maggi,Marcio F.; Sales,Livia L. S. R.; Suchoronczeck,Adriano.
O objetivo da pesquisa foi estudar os efeitos do manejo com diferentes formas de preparo do solo, tipos de resteva e infestação do solo com o fungo Trichoderma harzianum Rifai sobre as características de componentes do dossel vegetativo da cultura da batata. O experimento foi desenvolvido em Guarapuava-PR, em delineamento inteiramente casualizado, com parcelas subsubdivididas, em um esquema fatorial 4 x 5 x 2, com quatro repetições. Para o fator 1, foram avaliadas quatro formas de mecanização do preparo do solo (P): preparo-base (escarificação e sulcamento) - P1; preparo-base mais grade niveladora - P2; preparo-base mais enxada rotativa - P3 preparo-base mais grade niveladora e enxada rotativa - P4. No fator 2, utilizaram-se restevas de aveia, milho,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Preparo do solo; Tipos de resteva; Trichoderma harzianum; Infestação; Área foliar.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000500011

Formas de mecanização e manejo do solo para a cultura da batata I - características da produção
Provedor de dados: 70
Autores: Jadoski,Sidnei O.; Saito,Larissa R.; Maggi,Marcio F.; Wagner,Marcos V.; Reffatti,Taiã N.
O objetivo da pesquisa foi estudar os efeitos do manejo com diferentes formas de preparo do solo, tipos de resteva e infestação do solo com Trichoderma harzianum sobre a produtividade e as características dos tubérculos da cultura da batata. O experimento foi estruturado em delineamento inteiramente casualizado, em parcelas subsubdivididas, em um esquema fatorial 4 x 5 x 2, com quatro repetições. Foram avaliadas, na parcela, as seguintes formas de preparo do solo: preparo-base (escarificação e sulcamento) - P1; preparo-base mais grade niveladora - P2; preparo-base mais enxada rotativa - P3, e preparo-base mais grade niveladora e enxada rotativa - P4. Na subparcela, utilizaram-se as restevas de aveia, milho, trigo, feijão e uma testemunha sem resteva. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Preparo do solo; Tipos de resteva; Produtividade; Trichoderma harzianum.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000500008

Growth promotion and productivity of lettuce using Trichoderma spp. commercial strains
Provedor de dados: 75
Autores: Pereira,Fabíola T; Oliveira,Jessica B de; Muniz,Paulo Henrique PC; Peixoto,Gustavo Henrique S; Guimarães,Roberli R; Carvalho,Daniel Diego C.
ABSTRACT The aim of this study was to evaluate four strains of Trichoderma spp. (T. harzianum IBLF 006 WP, T. harzianum IBLF 006 SC, T. harzianum ESALQ 1306 and T. asperellum URM 5911) for seedling growth promotion in laboratory and head lettuce yield in field conditions. The experiment was carried out in a completely randomized design with four treatments (strains): IBLF 006 WP, IBLF 006 SC, ESALQ 1306 and URM 5911 and a non-inoculated (without Trichoderma) control. Each treatment consisted of 200 seeds, arranged in four replicates. Lettuce seeds cv. Astra were treated with 2 mL Trichoderma suspension (2.5 x 108 conidia mL-1 per each 100 g seeds) and submitted to growth assay in laboratory up to 7 days after sowing. For field experiment, we opened...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Trichoderma asperellum; Lactuca sativa; Biological control; Horticulture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100069

Controle biológico da podridão de raízes causada por Pythium spp. em cultivos hidropônicos.
Provedor de dados: 14
Autores: CORRÊA, E. B.; BETTIOL, W.
bitstream/item/12263/1/documentos_77.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Doença de planta; Alface; Podridão da raiz; Controle biológico; Cultivo hidropônico; Pythium aphanidermatum; Trichoderma harzianum; Regulador de crescimento; Lettuce; Damping off; Biological control; Bacillus subtilis; Clonostachys rosea; Paenibacillus lentimorbus.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/83091

Plant-mycorrhizal fungi interaction and response to inoculation with different growth-promoting fungi
Provedor de dados: 86
Autores: Vergara,Carlos; Araujo,Karla Emanuelle Campos; Souza,Sônia Regina de; Schultz,Nivaldo; Saggin Júnior,Orivaldo José; Sperandio,Marcus Vinícius Loss; Zilli,Jerri Édson.
Abstract: The symbiotic interaction between arbuscular mycorrhizal fungi (AMF) and 70-90% of the plant species is largely studied, but ectomycorrhizal fungi, Piriformospora indica, Trichoderma sp., and dark septate endophytes (DSE), also establish beneficial interactions with plants. Despite this, the joint discussion on the biochemical, physiological, and molecular aspects of nutrient transfer, mainly from the extraradical mycelium (ERM) to the plant, is still limited. The objective of this review is to present biochemical, physiological, and molecular approaches to the plant-AMF interaction, as well as to analyze the response of plants to inoculations with different growth-promoting fungi. Here, are highlighted the characteristics of the H+-ATPases and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piriformospora indica; Trichoderma harzianum; Arginine; Dark septate fungi; H+-ATPases; Nutrient transporters.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103301

Biological Control of Charcoal Rot of Mungbean by Trichoderma harzianum and Shoot Dry Biomass of Sisymbrium irio
Provedor de dados: 87
Autores: JAVAID,A.; AFZAL,L.; SHOAIB,A.
ABSTRACT: A pot experiment was carried out for the biological control of charcoal rot on mung bean (Vigna radiata), caused by Macrophomina phaseolina. Pot soil was made sick with an inoculum of M. phaseolina. Dried powdered leaves of Sisymbrium irio, a weed from the Brassicaceae family, were mixed in soil at 1, 2 and 3% (w/w) with and without the application of Trichoderma harzianm, a fungal biological control agent. The highest grain yield (3.62 g pot-1) was recorded in a combined application of T. harzianum and 1% S. irio leaf amendment, which was 62% and 805% higher than negative and positive control treatments, respectively. The application of S. irio leaf amendment and T. harzianum generally enhanced leaf protein, sugar and chlorophyll contents, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charcoal rot; Macrophomina phaseolina; Plant physiology; Sisymbrium irio; Trichoderma harzianum; Vigna radiata.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100274

Selectivity of different biological products to the egg parasitoid Telenomus remus (Hymenoptera: Platygastridae)
Provedor de dados: 92
Autores: Amaro,Junio Tavares; Bueno,Adeney de Freitas; Neves,Pedro Manuel Oliveira Janeiro; Silva,Débora Mello da; Pomari-Fernandes,Aline; Favetti,Bruna Magda.
ABSTRACT The selectivity of five entomopathogens and a chemical insecticide (positive control) to pupae and adults of the egg parasitoid Telenomus remus (Nixon) was evaluated in the laboratory under controlled environmental conditions according to protocols established by the International Organization for Biological Control. Baculovirus anticarsia (Baculovirus AEE®), Bacillus thuringiensis var. kurstaki (Thuricide®), Bacillus thuringiensis var. aizawai (Agree®), Beauveria bassiana (Boveril®), Metarhizium anisopliae (Metarril®) and Trichoderma harzianum (Trichodermil®) are harmless to T. remus pupae, and adults. Thus, our results suggest that the insect control strategies applied here are compatible since entomopathogens were classified as harmless to T....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus thuringiensis; Baculovirus anticarsia; Beauveria bassiana; Metarhizium anisopliae; Trichoderma harzianum.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000300195

Qualidade fisiológica de sementes de algodoeiro submetidas a tratamentos químico e biológico
Provedor de dados: 95
Autores: Faria,Akemi Yara Kuroyanagi; Albuquerque,Maria Cristina de F. e; Cassetari Neto,Daniel.
Uma alternativa aos tratamentos químicos de sementes é o uso de bioprotetores, por meio da microbiolização e, dentre esses, Trichoderma spp. têm sido considerados eficientes no controle de fungos e bactérias. Este trabalho foi conduzido com o objetivo de avaliar a eficiência dos tratamentos de sementes de algodoeiro com os fungicidas carboxin+thiram, carbendazin+thiram e flutolanil, comparando-os com Trichoderma harzianum, na germinação, no vigor das sementes e na promoção de crescimento das plântulas. Foram utilizadas sementes deslintadas de algodoeiro, da cultivar ITA 90, produzidas na safra de 1999/2000 e naturalmente infectadas. As sementes foram tratadas com suspensão de conídios de T. harzianum (10x10(5)conídios/mL), com carboxin+thiram (140g i.a. +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão; Vigor; Trichoderma harzianum; Fungicidas.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222003000100019

Filtration enrichment method for isolation of auxotrophic mutants of Trichoderma harzianum rifai
Provedor de dados: 59
Autores: Cassiolato,Ana Maria R.; Melo,Itamar Soares de.
The isolation of genetic markers, like drug resistance and auxotrophy, is a laborious but important step in genetic research. The isolation of auxotrophic mutants of Trichoderma harzianum using the filtration enrichment technique was more effective than using the total isolation technique. Most of 12 auxotrophic mutants exhibited similar growth rate and higher sporulation when compared with the wild type, but only two mutants (TWS-410 and TW5-523) could grow in 500µg/L of benomyl.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Filtration enrichment technique; Auxotrophic mutants; Trichoderma harzianum; Benomyl.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000100008

Antagonismo de aislamientos de Trichoderma spp. frente a Didymella bryoniae (Fuckel) Rehm
Provedor de dados: 100
Autores: Martínez,Benedicto; Pérez,Jesús; Infante,Danay; Duarte,Yanisia; Moreno,Martha.
El presente trabajo tuvo como objetivo determinar los modos de acción de aislamientos de Trichoderma spp. frente a Didymella bryoniae (Fuckel) Rehm, mediante la técnica de cultivo dual. Se evaluaron la competencia por el sustrato, el micoparasitismo y la antibiosis de aislamientos de Trichoderma asperellum Samuels (Ta.), Trichoderma harzianum Rifai (Th.) y Trichoderma sp. (T.). A partir de las 72 horas, todos los aislamientos presentaron efecto inhibitorio del crecimiento del patógeno superior al 50%. Los aislamientos Ta. 12, Ta. 79, Ta. 85 y T. 81 crecieron más del 75% del área de la placa, por lo que se ubicaron en la clase 1 de la escala de Bell. La velocidad de crecimiento de los dos últimos aislamientos aumentó a partir de las 72h, lo que pudiera...
Tipo: Journal article
Palavras-chave: Trichoderma asperellum; Trichoderma harzianum; Modos de acción; Gomosis; Cucurbitáceas.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522013000300005

Variabilidade entre isolados de Trichoderma harzianum: I - Aspectos citológicos
Provedor de dados: 63
Autores: Peres,E.; Melo,I.S. De.
Objetivou-se neste trabalho estudar a variabilidade de isolados selvagens de Trichoderma harzianum baseado nas características culturais e citológicas. Observaram-se o tamanho dos fialosporos, número de núcleos por fialosporos e crescimento e esporulação em meio de malte-ágar. Pelos resultados aqui encontrados foi possível reconhecer que há variação entre os isolados selvagens da espécie T. harzianum. Com relação ao número de núcleos, verificou-se uma variação de 1 a 3 núcleos por fialosporos. Também observou-se padrões diferenciais de crescimento e morfologia da colônia. Mais de 50% dos isolados atingiram o máximo de crescimento em 48 horas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Citologia; Variabilidade.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161995000100010

ประสิทธิภาพของเชื้อรา Trichoderma harzianum ต่อการลดปริมาณเชื้อรา Aspergillus spp. ในแปลงปลูกข้าวโพดโดยชีววิธี
Provedor de dados: 106
Autores: Waraporn Bunkead; Chiradej Chamswarng; Sutruedee Prathuangwong; Supot Kasam; Jeeranan Yhamsoongnern.
Trichoderma harzianum strain CB-Pin-01 suppressed the growth and effectively destroyed mycelia of Aspergillus sp.  When T. harzianum strain CB-Pin-01 used as seed and soil treatment or as seed and soil treatment plus three spray applications, the populations of Aspergillus spp. in corn planting soil were reduced by 85.26 and 90.00 percent, respectively, whereas the reduction of population in a control was 13.95 percent. T. harzianum strain CB-Pin-01 could colonize corn roots and rhizosphere soil throughout the growing period. High populations of T. harzianum were detected at 15 days after planting (3.8-5.4*10**(3) CFU/g), and then gradually decreased to 1.3-1.5 *10**(3) CFU/g at 15 days The populations of Aspergillus spp. detected on maize kernels at pre-...
Palavras-chave: Maize; Trichoderma harzianum; Aspergillus spp.; Biological control; ข้าวโพด; เชื้อรา; จุลินทรีย์ปฏิปักษ์; แปลงปลูก; การควบคุมโดยชีววิธี; การยับยั้งการเจริญ; การคลุกเมล็ด.
Ano: 2010
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4679

อิทธิพลของโพแทสเซี่ยมซิลิเกตและเชื้อรา Trichoderma harzianum ต่อการเกิดโรคถอดฝักดาบของกล้าข้าว
Provedor de dados: 106
Autores: Siriporn Amthong; Chiradej Chamsawarng; Wanwilai Intanoo.
Tipo: Collection
Palavras-chave: Bakanae disease; Potassium silicate; Trichoderma harzianum; Rice disease; โรคหลาว; ข้าว; โพแทสเซี่ยมซิลิเกต; เชื้อรา; โรคถอดฝักดาบ; ระยะต้นกล้า.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5363

ประสิทธิภาพของชีวภัณฑ์เชื้อราไตรโคเดอร์มาปฏิปักษ์สายพันธุ์ 01-52 ชนิดผงแห้งในการเพิ่มผลผลิต และลดโรคเมล็ดด่างของข้าวในสภาพแปลงนา
Provedor de dados: 106
Autores: Chiradej Chamsawarng; Wanwilai Intanoo; Rasamee Dhitikiattipong; Phraomas Chareonrak.
Trichoderma harzianum 01-52 prepared as powder formulation was evaluated for the efficacy to reduce dirty panicle and to increase yield of rice. This investigation was the cooperative research between Plant Pathologists from Kasetsart University and Rice Department. Rice seeds (Suphan Buri 3) were soaked in spore suspension of T. harzianum 01-52 (100 g/100 l) for 15 hrs and were further incubated for 24 hrs before sowing in plastic tray contained with burned rice hull. Eighteen-day-old rice seedlings were planted in rice field by transplanting machine. Rice plants were sprayed with T. harzianum 01-52 spore suspension (100 g/100 l/rai or 1,600 m2) for three times at 60, 70 and 80 days after sowing. In some treatments, two additional foliar sprays were...
Tipo: Collection
Palavras-chave: Trichoderma harzianum; Biological control; Rice disease; Seed soaking; Fungus biologics; Dirty panicle disease; Seed discoloration disease; เชื้อรา; การควบคุมโดยชีววิธี; โรคข้าว; การแช่เมล็ด; ชีวภัณฑ์เชื้อรา; โรคเมล็ดด่าง.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5372

ประสิทธิภาพของชีวภัณฑ์เชื้อราไตรโคเดอร์มาปฏิปักษ์สายพันธุ์ 01-52 ชนิดเม็ด ในการเพิ่มผลผลิต และลดโรคข้าวพันธุ์ชัยนาท 1 ในแปลงนาที่ไม่ใช้สารเคมีควบคุมศัตรูพืช
Provedor de dados: 106
Autores: Chiradej Chamsawarng; Wanwilai Intanoo; Phraomas Chareonrak.
Pellet formulation bioproduct of Trichoderma harzianum 01-52 were evaluated for the efficacy to reduce dirty panicle disease and to increase the yield of rice in non- chemical pesticides using fields in Kanchanaburi province, compared with the Trichoderma untreated control. Rice seeds (Chai Nat 1) were soaked in spore suspension of T. harzianum 01-52 (100 g/100 l) for 24 hrs. The soaked seeds were incubated for another 24 hrs before sowing in the rice field. Rice plants were sprayed with Trichoderma spore suspension (100 g/100 l/rai or 1,600 m2) at 40, 60 and 80 days after sowing. In some treatment, Trichoderma pellets were also used in combination with chemical fertilizer for broadcasting at the rate 10 kg/rai (or 1,600 m2). The results indicated that all...
Tipo: Collection
Palavras-chave: Trichoderma harzianum; Biological control; Rice diseases; Seed soaking; Seed discoloration disease; Dirty panicle disease; ข้าว; การควบคุมโดยชีววิธี; โรคข้าว; การแช่เมล็ด; โรคเมล็ดด่าง; เชื้อราไตรโคเดอร์มา.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5376

การจัดการจัดการศัตรูดาวเรืองแบบบูรณาการ
Provedor de dados: 106
Autores: Tasanee Jamjanya; Nutcharee Siri; Yuwarat Boonkaseam; Kanjana Khaeso.
The study of integrated pest management was performed in two farmers’ marigold field namely Ms. Liab and Ms Somchom at Muang district, Khon Kaen province. Randomized Complete Block Design (RCBD) was used with three treatments and four replications. T1- farmers’ practice, T2- control (no application of any insecticide and fungicide) and T3- integrated pest management (using trichoderma and released the predator, Sycanus sp.). In Ms. Liab’s plots, neem extract was applied to control insect pest. The result showed the least flower damage (1.81 percent); the highest number of flowers (44,596) and profit of 25,383.4 Baht/rai in T3 which significant difference with T1. The T1 obtained the least number of flowers (35,131.6) and profit of 16,288.5 Baht/rai....
Tipo: PhysicalObject
Palavras-chave: Marigold flower; Sycanus; Biological control; Trichoderma harzianum; Organic fertilizer; Integrated pest managemant; IPM; Survey; Yield; Profit; ดาวเรือง; ไม้ตัดดอก; มวนเพชฌฆาต; การควบคุมโดยชีววิธี; การควบคุมแมลงศัตรูพืช; การควบคุมโรคพืช; เชื้อราไตรโคเดอร์มา; ปุ๋ยหมักชีวภาพ; น้ำหมักชีวภาพ; ใบสะเดา; การจัดการศัตรูพืช; การจัดการแบบบูรณาการ; การสำรวจความเสียหาย; ผลผลิต; กำไร.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5779

Manejo da podridão-de-Sclerotium em pimentão em um argisolo no Amazonas
Provedor de dados: 36
Autores: Netto,Rosalee Albuquerque Coelho; Ferreira,Andréia Aline Bastos; Noda,Hiroshi.
A podridão-de-Sclerotium é uma doença comum em plantas da família Solanaceae na Amazônia. Visando avaliar estratégias de manejo para esta doença em pimentão (Capsicum annuum, L. Solanaceae), foi conduzido experimento em campo em blocos casualizados com parcelas subdivididas e seis repetições, em Argissolo Vermelho-Amarelo artificialmente infestado com Sclerotium rolfsii. O tratamento principal foi a cobertura do solo (cobertura do solo com serragem ou solo nu). Os tratamentos secundários consistiram na adição ao solo de: 1) composto vegetal (3 L por cova), 2) arroz colonizado com Trichoderma harzianum (90 g por cova contendo ≈ 1,4 x 10(9) conídios g-1), 3) composto vegetal e T. harzianum nas mesmas proporções descritas anteriormente e 4) testemunha. Todas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Sclerotium rolfsii; Trichoderma harzianum; Controle; Biológico; Cobertura morta.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000300007

INTERACCIÓN MICORRIZAS ARBUSCULARES-Trichoderma harzianum (Moniliaceae) Y EFECTOS SOBRE EL CRECIMIENTO DE Brachiaria decumbens (Poaceae)
Provedor de dados: 37
Autores: SOSA RODRÍGUEZ,TIFFANY; SÁNCHEZ NIEVES,JIMENA; MORALES GUTIÉRREZ,ESPERANZA; CRUZ CORTÉS,FERNANDO.
Se efectuó un ensayo en condiciones controladas utilizando hongos formadores de micorrizas arbusculares (HFMA) nativos, provenientes de un suelo rizosférico de Pennisetum clandestinum de la Universidad Nacional de Colombia (Bogotá), manteniéndolos en plantas de Brachiaria decumbens creciendo sobre sustrato arenoso suplementado con solución nutritiva. Se evaluaron diferentes tratamientos: plantas con inóculo de HFMA, plantas con Trichoderma harzianum, plantas con HFMA+T. harzianum y plantas control no inoculadas, con el fin de determinar las posibles interacciones entre dichos microorganismos, así como su efecto sobre el crecimiento de B. decumbens. La presencia de T. harzianum disminuyó la colonización radicular por HFMA, aunque no afectó la cantidad de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hongos formadores de micorrizas arbusculares (HFMA); Trichoderma harzianum; Rizósfera; Interacción.
Ano: 2006
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2006000100004

Native isolates of Trichoderma harzianum inducting resistance to Zymoseptoria tritici onwheat plants
Provedor de dados: 51
Autores: Stocco,Marina C; Mansilla,Andrea Y; Mónaco,Cecilia I; Segarra,Carmen; Lampugnani,Gladys; Abramoff,Cecilia; Marchetti,María F; Kripelz,Natalia; Cordo,Cristina C; Consolo,Verónica F.
Trichoderma harzianum inducting resistance to Zymoseptoria tritici. Septoria tritici blotch is endemic in the wheat growing cultivated areas of Argentina, which impacts in the crop yield. One management strategy is to use biocontrol agents. The objective of this work was to determine the effectiveness of Trichoderma spp. isolated from soils of different growing regions, as antagonist and characterize the T. harzianum effect throughout the proteolytic activity of the serine protease in the wheat plant. To determine the antagonistic capacities of Trichoderma spp. against Zimoseptoria tritici, wheat plants were grown from seeds coated with each of the ninety isolated Trichoderma. Antagonism was assessed 21 days after inoculation by the capacity of each...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Biocontrol; Wheat; Septoria tritici blotch; ISR; Serine protease.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722015000300002

Biocontrol del moho foliar del tomate Cladosporium fulvum empleando cuatro hongos antagonistas
Provedor de dados: 53
Autores: Torres,Enrique; Iannacone,José; Gomez,Hilda.
El moho foliar Cladosporium fulvum (Cooke 1883) produce una enfermedad que ataca el cultivo de tomate en invernadero en el Perú. Como alternativa al control de este patógeno se probó la eficiencia bajo condiciones in vitro e invernadero de cuatro hongos antagonistas: Hansfordia pulvinata (Berk y Curt 1958), Trichoderma harzianum (Rifai 1969), T. viride (Persoon 1821) y T. virens (Miller, Giddens y Foster 1963). El cultivo y crecimiento de los hongos se realizó en Agar Sabouraud para Trichoderma spp. y en Agar Jugo V8 para H. pulvinata. El bioensayo empleado fue el de placas precolonizadas propuesto por Krauss. En condiciones in vitro se observó que a 24 ºC y 72 h, el crecimiento de T. harzianum fue estadísticamente diferente de las otras tres especies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cladosporium fulvum; Control biológico; Hansfordia pulvinata; Tomate; Trichoderma harzianum; Trichoderma viride; Trichoderma virens.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052008000100021

Three tubulin genes of Trichoderma harzianum: alpha, beta and gamma
Provedor de dados: 52
Autores: Li,Min; Yang,Qian; Song,Jinzhu.
Three tubulin genes of Trichoderma harzianum were cloned followed genomic walking procedure. The tubulins showed high degree of amino acid homology with other fungal tubulins and were homologous with each other with 32 to 38% amino acid identity. Three measures for the degree of codon usage bias indicated the presence of bias in all the sequences, suggesting high expression levels in all the genes. Protein structures were modeled to provide the basis for understanding the tubulin's properties and its interactions with microtubule-associated proteins. Potential motifs were also postulated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Tubulin; Codon usage bias; Motif.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400009

Investigation of factors affecting xylanase activity from Trichoderma harzianum 1073 D3
Provedor de dados: 52
Autores: Isil,Seyis; Nilufer,Aksoz.
In this study, some physiological conditions affecting the activity of xylanase enzyme produced from Trichoderma harzianum 1073 D3 were determined. In addition, stabilization of pH and temperature in liquid and semi-solid state cultivation media were investigated. It was concluded that for maximum xylanase activity, incubation at 60°C in an enzyme incubation medium with pH 5 that contained 1 % xylan was appropriate. The stability studies showed that the enzyme was relatively stable in the pH range 3-7 and retained more than 50 % of its original activity after four months.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Xylan; Xylanase; Lignocellulosic material; Enzyme stability; Metal ions.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200004

Production of spores of Trichoderma harzianum on sugar cane molasses and bagasse pith in solid state fermentation for biocontrol
Provedor de dados: 52
Autores: Rodríguez-León,Jose A.; Domenech,F.; León,M.; Méndez,T.; Rodríguez,D. E.; Pandey,Ashok.
Solid state fermentation was carried out for the production of spores from Trichoderma harzianum No 53 using sugar cane bagasse pith as solid matrix and sugar cane molasses as carbon and energy source. Different nitrogen sources such as urea, (NH4)2SO4 , NH4H2PO4 and (NH4)2HPO4 were added in the media to test their effect on spores production. Among these, urea was found most useful that resulted high no of spores (1x10(9)/gDM). The influence of temperature and initial moisture of the substrate was studied through a 2² experimental plan design. No statistical differences were found within the range of 30-35ºC and 60-70% for temperature and moisture respectively. The biotechnological parameters of the process were derived from the Oxygen Uptake Rate (OUR)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Solid state fermentation; Sugar cane pith and molasses; Biocontrol; Kinetics.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100010

Biological control of Phytophthora root rot of avocato with microorganisms grown in organic mulches
Provedor de dados: 58
Autores: Costa,Jefferson L. da S.; Menge,John A.; Casale,Willian L.
Organic mulches colonized with microbial biocontrol agents, termed bioenhanced mulches, were tested for their ability to reduce Phytophthora root rot of avocado (Persea americana Mill.). Benomyl-resistant mutants of Gliocladium virens (KA 230-1) and Trichoderma harzianum (KA 159.2) isolated from suppressive soils and selected as efficient antagonists of P. cinnamomi were evaluated for their ability to colonize different mulches under controlled laboratory conditions. Sudangrass and a coarse yardwaste were found to be better substrates than a fine yardwaste, woodwaste or rice hulls for biocontrol agents propagules production. The most suitable conditions for colonization were an optimum temperature of 24°C, a moisture content of 20% for sudangrass and 30%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytophthora cinnamoni; Gliocladium virens; Trichoderma harzianum; Avocado.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400002

Biological control of rice brown spot with native isolates of three Trichoderma species
Provedor de dados: 58
Autores: Khalili,Elham; Sadravi,Mehdi; Naeimi,Shahram; Khosravi,Vahid.
Brown spot caused by Bipolaris oryzae is an important rice disease in Southern coast of Caspian Sea, the major rice growing region in Iran. A total of 45 Trichoderma isolates were obtained from rice paddy fields in Golestan and Mazandaran provinces which belonged to Trichoderma harzianum, T. virens and T. atroviride species. Initially, they were screened against B. oryzae by antagonism tests including dual culture, volatile and nonvolatile metabolites and hyperparasitism. Results showed that Trichoderma isolates can significantly inhibit mycelium growth of pathogen in vitro by producing volatile and nonvolatile metabolites Light microscopic observations showed no evidence of mycoparasitic behaviour of the tested isolates of Trichoderma spp. such as coiling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rice brown spot; Biocontrol; Trichoderma harzianum; T. virens; T. atroviride.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100035

Biocontrol potential of salinity tolerant mutants of Trichoderma harzianum against Fusarium oxysporum
Provedor de dados: 58
Autores: Mohamed,Hassan Abdel-Latif A.; Haggag,Wafaa Mohamed.
Exposing a wild-type culture of Trichoderma harzianum to gamma irradiation induced two stable salt-tolerant mutants (Th50M6 and Th50M11). Under saline conditions, both mutants greatly surpassed their wild type strain in growth rate, sporulation and biological proficiency against Fusarium oxysporum, the causal agent of tomato wilt disease. Tolerant T. harzianum mutants detained a capability to grow and convinced sporulation in growth media containing up to 69 mM NaCl. In comparison with their parent strain, characterization of both mutants confirmed that they have reinforced contents of proline and hydroxyproline, relatively higher sodium content compared to potassium, calcium or magnesium contents, higher level of total phenols. Electrophoretic analysis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal metabolites; Mutagenesis; Gamma-irradiation; Salt stress; Trichoderma harzianum; Fusarium oxysporium.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200016

Production and use of mutanase from Trichoderma harzianum for effective degradation of streptococcal mutans
Provedor de dados: 58
Autores: Wiater,Adrian; Szczodrak,Janusz; Pleszczynska,Malgorzata; Próchniak,Katarzyna.
Basic cultural parameters affecting mutanase production by Trichoderma harzianum F-340 in shaken flasks and aerated fermenter cultures have been standardized. The best medium for enzyme production was Mandels medium A with initial pH 5.3, supplemented with 0.3% mutan and 0.05% peptone and inoculated with 20% of the 72-h mycelium as inoculum. It was shown that mycelial mass, used in the culture medium as a sole carbon source, induced mutanase synthesis and could be utilized as an inexpensive and easily available substitute for bacterial mutan. Application of optimized medium and cultural conditions enabled us to obtain a high mutanase yield (0.6-0.7 U/mL, 2.0-2.5 U/mg protein) in a short period of time (3-5 days), which was much higher than the best...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Mutanase; Mutan.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000200008

The improvement of competitive saprophytic capabilities of Trichoderma species through the use of chemical mutagens
Provedor de dados: 58
Autores: Singh,Rashmi; Maurya,Sudarshan; Upadhyay,Ram Sanmukh.
Abstract The antagonistic potential of Trichoderma strains was assayed by studying the effect of their culture filtrate on the radial growth of Sclerotium rolfsii, the causal agent of chickpea collar rot. Trichoderma harzianum-1432 (42.2%) and Trichoderma atroviride (40.3%) were found to be strong antagonists. To enhance their antagonistic potential, mutagenesis of these two selected strains was performed. Two mutants, Th-m1 and T. atroviride m1, were found to be more effective than their parent strains. The enzymatic activities of the selected parent and mutant strains were assayed, and although both mutants were found to have enhanced enzymatic activities compared to their respective parent strains, Th-m1 possessed the maximum cellulase (5.69 U/mL) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Collar rot; Trichoderma harzianum; Sclerotium rolfsii.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000100010

Xylanase production by Trichoderma harzianum rifai by solid state fermentation on sugarcane bagasse
Provedor de dados: 58
Autores: Rezende,Maria Inês; Barbosa,Aneli de Melo; Vasconcelos,Ana Flora Dalberto; Endo,Asae Sakurada.
Sugarcane bagasse was used as substrate for xylanase production by means of a strain of Trichoderma harzianum Rifai isolated from decaying Aspidosperma sp. (peroba) wood. The bagasse was washed, dried, milled and wetted with minimal salts medium and the cultures grown at 28 ± 2ºC for 7 days. Two extraction methods were tested for enzyme recovery: (A) Tween 80, 0.1% (v/v), in physiological saline, and (B) 50mM sodium acetate buffer, pH 5.0, under agitation (180rpm) for 15, 30 and 60min. After a single extraction, both extraction methods recovered an average of 15U/ml of xylanase activity, independent on the time of shaking. A second and third extraction recovered 10.4 and 6.6U/ml xylanase, respectively. The effect of volume size for extraction, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Xylanase; Solid state fermentation; Sugarcane bagasse.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100014

Chemical and biological control of Sclerotinia stem rot in the soybean crop
Provedor de dados: 65
Autores: Sumida,Ciro Hideki; Canteri,Marcelo Giovanetti; Peitl,Douglas Casaroto; Tibolla,Fabiana; Orsini,Idenize Pedrina; Araújo,Felipe André; Chagas,Débora Fonseca; Calvos,Natália Sanches.
It was evaluated the effect of fungicides and the microbial control agent Trichoderma harzianum on the inhibition of the carpogenic and ascospore germination of Sclerotinia sclerotiorum. This study also evaluated the chemical, fungicidal and microbial control of white mold or Sclerotinia stem rot of soybean in the field. Three experiments were conducted, as follows: 1) inhibition of carpogenic germination of sclerotia, 2) inhibition of ascospore germination, and 3) control of Sclerotinia stem rot in a soybean crop under field conditions. The treatments evaluated were fluazinam, procymidone, iprodione, thiophanate-methyl, carbendazim, benzalkonium chloride + fluazinam, and T. harzianum. Procymidone resulted in an inhibition of 13.5% and benzalkonium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Trichoderma harzianum; Apothecium; Ascospore; Sclerotium; Soybean.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000500760

Inoculação de sementes de milho utilizando o Trichoderma harzianum como promotor de crescimento
Provedor de dados: 64
Autores: Resende,Maria de Lourdes; Oliveira,João Almir de; Guimarães,Renato Mendes; Von Pinho,Renzo Garcia; Vieira,Antônio Rodrigues.
Conduziu-se este trabalho com o objetivo de estudar o efeito do fungo Trichoderma harzianum como promotor de crescimento de sementes de milho tratadas com diferentes fungicidas. O experimento foi realizado em vasos em casa-de-vegetação, adotando o delineamento experimental inteiramente casualizado em esquema fatorial (3x2), utilizando os tratamentos com fungicidas: Captan®, Maxim® e testemunha e inoculação (com e sem inóculo) em quatro repetições. As características agronômicas avaliadas foram: altura de planta, peso da matéria seca da parte aérea e de raízes e também a técnica de isolamento do fungo nas raízes aos 45 dias após semeadura. Observou-se diferença significativa somente para o fator inóculo na característica peso de matéria seca de raízes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma harzianum; Promotor; Crescimento; Milho.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542004000400010