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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
28/04/2023 |
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Data da última atualização: |
28/04/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GIORDANO, D. F.; PASTOR, N.; ROUWS, L. F. M.; FREITAS, K. M. de; DEL CANTO, I.; ERAZO, J.; COELHO, I. S.; ODDINO, C. M.; TORRES, A. |
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Afiliação: |
Universidad Nacional Rio Cuarto; Universidad Nacional Rio Cuarto; LUC FELICIANUS MARIE ROUWS, CNPAB; KARINE MOURA DE FREITAS, CNPAB; University of Valencia; Universidad Nacional Rio Cuarto; UFRRJ; Universidad Nacional Rio Cuarto; Universidad Nacional Rio Cuarto. |
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Título: |
Trichoderma harzianum ITEM 3636 colonizes peanut roots as an endophyte and protects the plants against late leaf spot. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Symbiosis, v. 89, p. 337-352, 2023. |
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ISSN: |
0334-5114 |
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Idioma: |
Inglês |
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Conteúdo: |
Trichoderma harzianum ITEM 3636 has been tested against different soil-borne peanut diseases, applied as a seed treatment. The strain protected mature peanut plants suggesting a long lasting protection, and was isolated from plant roots several months after the sowing in field assays. We hypothesized that T. harzianum ITEM 3636 colonizes peanut roots as an endophyte as was demonstrated with other few strains, and in this interaction, the fungi reside in plant roots and can protect the plant against a foliar disease. The spreadability of conidia on the surface of peanut seeds and the mycelial growth inside root tissues were studied through scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM), respectively. Conidia from ITEM 3636 had an appropriate distribution on coated seed surfaces. Furthermore, the fungal mycelium colonized root surfaces forming appressorium-like structures and swollen cells. The overlay of green and red confocal images clearly showed fungal hyphae grew internally through epidermal and cortical cells. Once inside the root, T. harzianum ITEM 3636 increased the levels of jasmonic acid in roots but not of salicylic acid. Also, the effect of seed treatment in peanut plant defense against Nothopassalora personata was evaluated under greenhouse conditions. ITEM 3636 significantly decreased the number of affected leaflets, late leaf spot (LLS) incidence and severity, and induced higher levels of defense related enzymes in leaflets after challenge with the pathogen. No direct activation of JA or SA pathways was observed in the leaves of Trichoderma-induced peanuts plants. T. harzianum decreased the concentration of ABA, which may reflect that the strain might improve defense mechanisms of the plant, through ABA content. MenosTrichoderma harzianum ITEM 3636 has been tested against different soil-borne peanut diseases, applied as a seed treatment. The strain protected mature peanut plants suggesting a long lasting protection, and was isolated from plant roots several months after the sowing in field assays. We hypothesized that T. harzianum ITEM 3636 colonizes peanut roots as an endophyte as was demonstrated with other few strains, and in this interaction, the fungi reside in plant roots and can protect the plant against a foliar disease. The spreadability of conidia on the surface of peanut seeds and the mycelial growth inside root tissues were studied through scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM), respectively. Conidia from ITEM 3636 had an appropriate distribution on coated seed surfaces. Furthermore, the fungal mycelium colonized root surfaces forming appressorium-like structures and swollen cells. The overlay of green and red confocal images clearly showed fungal hyphae grew internally through epidermal and cortical cells. Once inside the root, T. harzianum ITEM 3636 increased the levels of jasmonic acid in roots but not of salicylic acid. Also, the effect of seed treatment in peanut plant defense against Nothopassalora personata was evaluated under greenhouse conditions. ITEM 3636 significantly decreased the number of affected leaflets, late leaf spot (LLS) incidence and severity, and induced higher levels of defense related enzymes in leaflets afte... Mostrar Tudo |
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Palavras-Chave: |
Biocontrol; Endophyte; Nothopassalora personata; Plant defense induction; Plant deseases treatment. |
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Thesaurus Nal: |
Peanuts. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02651naa a2200301 a 4500
001 2153429
005 2023-04-28
008 2023 bl uuuu u00u1 u #d
022 $a0334-5114
100 1 $aGIORDANO, D. F.
245 $aTrichoderma harzianum ITEM 3636 colonizes peanut roots as an endophyte and protects the plants against late leaf spot.$h[electronic resource]
260 $c2023
520 $aTrichoderma harzianum ITEM 3636 has been tested against different soil-borne peanut diseases, applied as a seed treatment. The strain protected mature peanut plants suggesting a long lasting protection, and was isolated from plant roots several months after the sowing in field assays. We hypothesized that T. harzianum ITEM 3636 colonizes peanut roots as an endophyte as was demonstrated with other few strains, and in this interaction, the fungi reside in plant roots and can protect the plant against a foliar disease. The spreadability of conidia on the surface of peanut seeds and the mycelial growth inside root tissues were studied through scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM), respectively. Conidia from ITEM 3636 had an appropriate distribution on coated seed surfaces. Furthermore, the fungal mycelium colonized root surfaces forming appressorium-like structures and swollen cells. The overlay of green and red confocal images clearly showed fungal hyphae grew internally through epidermal and cortical cells. Once inside the root, T. harzianum ITEM 3636 increased the levels of jasmonic acid in roots but not of salicylic acid. Also, the effect of seed treatment in peanut plant defense against Nothopassalora personata was evaluated under greenhouse conditions. ITEM 3636 significantly decreased the number of affected leaflets, late leaf spot (LLS) incidence and severity, and induced higher levels of defense related enzymes in leaflets after challenge with the pathogen. No direct activation of JA or SA pathways was observed in the leaves of Trichoderma-induced peanuts plants. T. harzianum decreased the concentration of ABA, which may reflect that the strain might improve defense mechanisms of the plant, through ABA content.
650 $aPeanuts
653 $aBiocontrol
653 $aEndophyte
653 $aNothopassalora personata
653 $aPlant defense induction
653 $aPlant deseases treatment
700 1 $aPASTOR, N.
700 1 $aROUWS, L. F. M.
700 1 $aFREITAS, K. M. de
700 1 $aDEL CANTO, I.
700 1 $aERAZO, J.
700 1 $aCOELHO, I. S.
700 1 $aODDINO, C. M.
700 1 $aTORRES, A.
773 $tSymbiosis$gv. 89, p. 337-352, 2023.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| 8. |  | SILVA, A. B.; MORENZ, D. A.; BOTELHO, F. M.; SOUSA, F. D. DE R.; FONSECA, C. E. M.; MORENZ, M. J. F. Composição química do músculo Longissimus dorsi de cabritos alimentados com resíduos de panificação em substituição ao milho. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 48., 2011, Belém. O Desenvolvimento da produção animal e a responsabilidade frente a novos desafios. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | SOUSA, F. D. M. de; GIRAO, E. G.; SILVA, F. N. dos S.; ALVES, J. F. P.; DUARTE, A. de S. Monitoramento bacteriológico das fontes de água para consumo da comunidade indígena Tapeba, Caucaia, Estado do Ceará. In: SIMPÓSIO BRASILEIRO DE SAÚDE AMBIENTAL, 1., 2010, Belém. Livro de Resumos. Rio de Janeiro: Associação Brasileira de Pós-Graduação em Saúde Coletiva, 2010. p. 260| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 10. | | MENDES, F. R. S.; BASTOS, M. do S. R.; MENDES, L. G.; SILVA, A. R. A.; SOUSA, F. D.; MOREIRA, A. C. O. M.; CHENG, H. N.; BISWAS, A.; MOREIRA, R. A. Preparation and evaluation of hemicellulose films and their blends. Food Hydrocolloids, v. 70, p. 181-190, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 11. | | BUSTAMANTE, M. M. C.; METZGER, J. P.; SCARIOT, A. O.; BAGER, A.; TURRA, A.; BARBIERI, A.; NEVES, A.; BOESING, A. L.; AGOSTINHO, A. A.; MARQUES, A. C.; DIAS, B.; GRELLE, C. E. V.; CAIXETA, D.; SAWYER, D.; SCARANO, F.; SOUSA, F. D. R.; FERNANDES, G. W.; QUEIROZ, H.; MIRANDA, H. S.; SCHONGART, J.; QUINTÃO, J. M. B.; MARTINELLI, L. A.; GOMES. L. C.; CUNHA, M. C. da; PIEDADE, M. T. F.; SATO, M. N.; VALE, M. M.; AQUINO, M. F. S. de; VOGT, N.; MAY, P.; FEARNSIDE, P.; PRADO, R. B.; RODRIGUES, R. R.; THOMAZ, S. M.; PIVELLO, V. R.; IMPERATRIZ FONSECA, V. L.; FARJALLA, V. F. Tendências e impactos dos vetores de degradação e restauração da biodiversidade e dos serviços ecossistêmicos. In: JOLY, C. A.; SCARANO, F. R.; SEIXAS, C. S.; METZGER, J. P.; OMETTO, J. P.; BUSTAMANTE, M. M. C.; PADGURSCHI, M. C. G.; PIRES, A. P. F.; CASTRO, P. F. D.; GADDA, T.; TOLEDO, P. (Ed.). 1° Diagnóstico brasileiro de biodiversidade e serviços ecossistêmicos. São Carlos, SP: Editora Cubo, 2019. cap. 3, p. 93-213.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia; Embrapa Solos. |
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| Registros recuperados : 11 | |
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