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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
14/10/1998 |
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Data da última atualização: |
14/10/1998 |
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Autoria: |
PANACCIONE, D. G.; VAILLANCOURT, L. J.; HANAU, R. M. |
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Título: |
Conidial dimorphism in Colletotrichum graminicola. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Mycologia, v.81, n.6, p.876-883, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Colletotrichum graminicola produced two types of conidia in culture and during infection of corn leaves. One was lunate to falcate and was produced blastically from morphologically distinct conidiogenous cells. The second type was oval to eliptic, variable in size but smaller than falcate conidia, and was produced blastically from hyphae that lacked distinct conidiogenous cells. Falcate conidia each contained one nucleus, whereas the oval type contained one to four nuclei. A difference in cell wall structure was suggested by greater sensitivity of oval conidia to cell-wall degrading enzymes. Oval conidia were the only type produced in shake culture grown in the dark. Both types of conidia were produced by cultures on agar media and by standing cultures in small volumes of liquid medium but, unlike oval conidia, development of falcate conidia wal light-dependent. When used to inoculate susceptible corn seedlings, both types of conidia caused symptoms comparable over a range of inoculum concentrations. Regardless of the type of conidia used to inoculate seedlings, both were found in lesions of infected leaves. |
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Palavras-Chave: |
Conidial development; Estudo morfologico; Morphological study. |
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Thesagro: |
Antracnose; Colletotrichum Graminicola; Fungo. |
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Thesaurus Nal: |
anthracnose. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01734naa a2200229 a 4500
001 1053256
005 1998-10-14
008 1989 bl --- 0-- u #d
100 1 $aPANACCIONE, D. G.
245 $aConidial dimorphism in Colletotrichum graminicola.
260 $c1989
520 $aColletotrichum graminicola produced two types of conidia in culture and during infection of corn leaves. One was lunate to falcate and was produced blastically from morphologically distinct conidiogenous cells. The second type was oval to eliptic, variable in size but smaller than falcate conidia, and was produced blastically from hyphae that lacked distinct conidiogenous cells. Falcate conidia each contained one nucleus, whereas the oval type contained one to four nuclei. A difference in cell wall structure was suggested by greater sensitivity of oval conidia to cell-wall degrading enzymes. Oval conidia were the only type produced in shake culture grown in the dark. Both types of conidia were produced by cultures on agar media and by standing cultures in small volumes of liquid medium but, unlike oval conidia, development of falcate conidia wal light-dependent. When used to inoculate susceptible corn seedlings, both types of conidia caused symptoms comparable over a range of inoculum concentrations. Regardless of the type of conidia used to inoculate seedlings, both were found in lesions of infected leaves.
650 $aanthracnose
650 $aAntracnose
650 $aColletotrichum Graminicola
650 $aFungo
653 $aConidial development
653 $aEstudo morfologico
653 $aMorphological study
700 1 $aVAILLANCOURT, L. J.
700 1 $aHANAU, R. M.
773 $tMycologia$gv.81, n.6, p.876-883, 1989.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| 3. | | MACIEL, D. H. R.; SOUSA, R. de C. P. de; SMIDERLE, O. J.; CHAGAS, E. A.; FERREIRA, M. W. de M.; SANTOS, V. A. dos. Potencial dos resíduos gerados na extraçao das sementes da bertholletia excelsa h.b.k. Como substrato orgânico. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA APLICADA, 2.; SIMPÓSIO NACIONAL DE FRUTÍFERAS E ORNAMENTAIS DO NORTE E NORDESTE, 2., 2013, Manaus. Anais... Manaus: Ufam, 2013.| Tipo: Resumo em Anais de Congresso |
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| 4. | | FERREIRA, M. W. de M.; SOUSA, R. de C. P. de; SOUSA, L. M.; SMIDERLE, O. J.; CHAGAS, E. A.; BACELAR-LIMA, C. G. Valorização dos resíduos gerados na seleção e avaliação da qualidade de sementes de myrciaria dubia (kunth.) Mcvaugh. In: SIMPÓSIO INTERNACIONAL DE BOTÂNICA APLICADA, 2.; SIMPÓSIO NACIONAL DE FRUTÍFERAS E ORNAMENTAIS DO NORTE E NORDESTE, 2., 2013, Manaus. Anais... Manaus: Ufam, 2013.| Tipo: Resumo em Anais de Congresso |
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| Registros recuperados : 4 | |
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