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| Registros recuperados: 36 | |
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| 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 |
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| 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... |
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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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 36 | |
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