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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
20/12/2013 |
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Data da última atualização: |
07/03/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROSA, L. H.; QUEIROZ, S. C. do N. de; MORAES, R. M.; WANG, X.; TECHEN, N.; PAN, Z.; CANTRELL, C. L.; WEDGE, D. E. |
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Afiliação: |
LUIZ H. ROSA, ICB-UFMG; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; RITA M. MORAES, University of Mississippi; XIAONING WANG, University of Mississippi; NATASCHA TECHEN, University of Mississippi; ZHIQIANG PAN, USDA-ARS; CHARLES L. CANTRELL, USDA-ARS; DAVID E. WEDGE, USDA-ARS. |
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Título: |
Coniochaeta ligniaria: antifungal activity of the cryptic endophytic fungus associated with autotrophic tissue cultures of the medicinal plant Smallanthus sonchifolius (Asteraceae). |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Symbiosis, Philadelphia, v. 60, p. 133-142, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Few studies have addressed the presence and bioactivity of endophytic fungi living in plantlets growing under in vitro conditions. After unfruitful attempts to grow axenic shoot cultures of the medicinal plant Smallanthus sonchifolius (yacon) were made, healthy shoots grew on half strength Murashigue and Skoog media supplemented with 2.2 mM benzylaminopurine without sucrose. We isolated a fungusUM109 from these autotrophic tissue cultures and it was identifiedas Coniochaeta ligniaria using molecular, physiological and morphological methods. Dichloromethane extracts from C. ligniaria and its host S. sonchifolius exhibited antifungal activity against phytopathogenic fungi Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Both extracts of C. ligniariaand S. sonchifolius were subjected to antifungal bioassaydirected fractionation using NMR spectroscopy and GC-FID analysis. Twelve antifungal fatty acids were identified and 8 out of the total were produced by the fungus and the plant including caproic, caprylic, myristic, palmitic, heptadecanoic, stearic, oleic and linoleic acids. Additionally, caproic, caprylic and palmitic acids were produced at high concentrations by the endophytic fungus and its host. The detection of these antifungal fatty acids produced by both C. ligniaria and S. Sonchifolius suggests that these bioactive compounds may be partially responsible for the high resistance of S. sonchifolius to phytopathogenic fungal attacks. This finding also indicates the existence of an interesting chemical symbiosis between an endophytic fungus and its host. Furthermore, the isolation of C. ligniaria from tissue culture of S. sonchifolius demonstrates that plantlets growing in vitro as autotrophic cultures can shelter specific endophytic fungal communities. The use of autotrophic tissue cultures may become an important tool for studies on the taxonomy, ecology, evolution and biotechnological application of endophytes. MenosFew studies have addressed the presence and bioactivity of endophytic fungi living in plantlets growing under in vitro conditions. After unfruitful attempts to grow axenic shoot cultures of the medicinal plant Smallanthus sonchifolius (yacon) were made, healthy shoots grew on half strength Murashigue and Skoog media supplemented with 2.2 mM benzylaminopurine without sucrose. We isolated a fungusUM109 from these autotrophic tissue cultures and it was identifiedas Coniochaeta ligniaria using molecular, physiological and morphological methods. Dichloromethane extracts from C. ligniaria and its host S. sonchifolius exhibited antifungal activity against phytopathogenic fungi Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Both extracts of C. ligniariaand S. sonchifolius were subjected to antifungal bioassaydirected fractionation using NMR spectroscopy and GC-FID analysis. Twelve antifungal fatty acids were identified and 8 out of the total were produced by the fungus and the plant including caproic, caprylic, myristic, palmitic, heptadecanoic, stearic, oleic and linoleic acids. Additionally, caproic, caprylic and palmitic acids were produced at high concentrations by the endophytic fungus and its host. The detection of these antifungal fatty acids produced by both C. ligniaria and S. Sonchifolius suggests that these bioactive compounds may be partially responsible for the high resistance of S. sonchifolius to phytopathogenic fungal attacks. This finding also indicat... Mostrar Tudo |
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Palavras-Chave: |
Propriedades antifúngicas; Yacon. |
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Thesagro: |
Ácido graxo; Fungo; Planta medicinal. |
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Thesaurus Nal: |
Antifungal properties; Coniochaeta ligniaria; Fatty acids; Medicinal plants; Smallanthus sonchifolius; Symbiosis; Tissue culture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03028naa a2200349 a 4500
001 1974571
005 2014-03-07
008 2013 bl uuuu u00u1 u #d
100 1 $aROSA, L. H.
245 $aConiochaeta ligniaria$bantifungal activity of the cryptic endophytic fungus associated with autotrophic tissue cultures of the medicinal plant Smallanthus sonchifolius (Asteraceae).$h[electronic resource]
260 $c2013
520 $aFew studies have addressed the presence and bioactivity of endophytic fungi living in plantlets growing under in vitro conditions. After unfruitful attempts to grow axenic shoot cultures of the medicinal plant Smallanthus sonchifolius (yacon) were made, healthy shoots grew on half strength Murashigue and Skoog media supplemented with 2.2 mM benzylaminopurine without sucrose. We isolated a fungusUM109 from these autotrophic tissue cultures and it was identifiedas Coniochaeta ligniaria using molecular, physiological and morphological methods. Dichloromethane extracts from C. ligniaria and its host S. sonchifolius exhibited antifungal activity against phytopathogenic fungi Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Both extracts of C. ligniariaand S. sonchifolius were subjected to antifungal bioassaydirected fractionation using NMR spectroscopy and GC-FID analysis. Twelve antifungal fatty acids were identified and 8 out of the total were produced by the fungus and the plant including caproic, caprylic, myristic, palmitic, heptadecanoic, stearic, oleic and linoleic acids. Additionally, caproic, caprylic and palmitic acids were produced at high concentrations by the endophytic fungus and its host. The detection of these antifungal fatty acids produced by both C. ligniaria and S. Sonchifolius suggests that these bioactive compounds may be partially responsible for the high resistance of S. sonchifolius to phytopathogenic fungal attacks. This finding also indicates the existence of an interesting chemical symbiosis between an endophytic fungus and its host. Furthermore, the isolation of C. ligniaria from tissue culture of S. sonchifolius demonstrates that plantlets growing in vitro as autotrophic cultures can shelter specific endophytic fungal communities. The use of autotrophic tissue cultures may become an important tool for studies on the taxonomy, ecology, evolution and biotechnological application of endophytes.
650 $aAntifungal properties
650 $aConiochaeta ligniaria
650 $aFatty acids
650 $aMedicinal plants
650 $aSmallanthus sonchifolius
650 $aSymbiosis
650 $aTissue culture
650 $aÁcido graxo
650 $aFungo
650 $aPlanta medicinal
653 $aPropriedades antifúngicas
653 $aYacon
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aMORAES, R. M.
700 1 $aWANG, X.
700 1 $aTECHEN, N.
700 1 $aPAN, Z.
700 1 $aCANTRELL, C. L.
700 1 $aWEDGE, D. E.
773 $tSymbiosis, Philadelphia$gv. 60, p. 133-142, 2013.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
11/07/2012 |
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Data da última atualização: |
25/04/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
MARTINS, M. V. V.; SERRANO, L. A. L.; LIMA, I. de M.; OLIVEIRA, E. B. de. |
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Afiliação: |
MARLON VAGNER VALENTIM MARTINS, CNPAT; LUIZ AUGUSTO LOPES SERRANO, CNPAT; Inorbert de Melo Lima, INCAPER; Erik Bravim de Oliveira, INCAPER. |
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Título: |
Incidência e controle químico da ferrugem da goiabeira em diferentes épocas de poda na região norte do Espírito Santo. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Ceres, Viçosa, v. 59, n. 2, p. 178-184, 2012. |
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Idioma: |
Português |
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Conteúdo: |
No norte do estado do do espírito santo, vem sendo obsrevadaa ocorrência crescente da ferrugem nos pomares de goiabeira, ocasionando a queda de frutos novos e o declínio na produção. Este trabalho teve como bojetico avaliar tratamentos com fungicidas no controle da ferrugem em goiabeiras ' paluna' podadas em diferentes época do ano. |
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Palavras-Chave: |
Fungicidas; Poda de frutificação. |
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Categoria do assunto: |
-- |
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URL: |
https://intranet.cnpat.embrapa.br/cge/ndi/metas/metas12/AB212003.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/62335/1/AB212003.pdf
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Marc: |
LEADER 00911naa a2200181 a 4500
001 1928017
005 2013-04-25
008 2012 bl uuuu u00u1 u #d
100 1 $aMARTINS, M. V. V.
245 $aIncidência e controle químico da ferrugem da goiabeira em diferentes épocas de poda na região norte do Espírito Santo.
260 $c2012
520 $aNo norte do estado do do espírito santo, vem sendo obsrevadaa ocorrência crescente da ferrugem nos pomares de goiabeira, ocasionando a queda de frutos novos e o declínio na produção. Este trabalho teve como bojetico avaliar tratamentos com fungicidas no controle da ferrugem em goiabeiras ' paluna' podadas em diferentes época do ano.
653 $aFungicidas
653 $aPoda de frutificação
700 1 $aSERRANO, L. A. L.
700 1 $aLIMA, I. de M.
700 1 $aOLIVEIRA, E. B. de
773 $tRevista Ceres, Viçosa$gv. 59, n. 2, p. 178-184, 2012.
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Embrapa Agroindústria Tropical (CNPAT) |
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