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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
29/07/1993 |
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Data da última atualização: |
29/07/1993 |
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Autoria: |
TREVORROW, P. R.; IRWIN, J. A.; CAMERON, D. F. |
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Título: |
Histopathology of compatible and incompatible interaction between Colletotrichum gloeosporioides and Stylosanthes scabra. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Transactions of the British Mycological Society, v.90, n.3, p.421-429, 1988. |
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Idioma: |
Inglês |
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Conteúdo: |
The histopathology of interactions between five genetically defined cultivars and accessions of Stylosanthes scabra and three pathotypes of Colletotrichum gloeosporioides was studied quantitatively and quantitatively. In all interactions studied prepenetration processes were generally similar, leading to the formation of predominantly sessile melanized appressoria. Penetration occurred only from melanized appressoria, and in both compatible and incompatible interactions. There were generally significantly higher penetration levels for the compatible interactions. Differences in the extent of fungal growth in the cells of compatible and incompatible interactions were apparent by 48 h after inoculation. In the incompatible interactions, colony areas did not increase after 48h, and the fungus rarely penetrated more than two cells. Cell degeneration was not evident with light microscopy in the first 48h, even though up to six cells were penetrated by this time in susceptible hosts. Collapse of epidermal and mesophyll cells in susceptible hosts was, however, evident by 72 h. |
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Palavras-Chave: |
Fungos - colletotrichum gloeosporioides; Leguminosa - stylosanthes scabra; Pastagem - leguminosas. |
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Thesagro: |
Antracnose. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01741naa a2200193 a 4500
001 1417678
005 1993-07-29
008 1988 bl --- 0-- u #d
100 1 $aTREVORROW, P. R.
245 $aHistopathology of compatible and incompatible interaction between Colletotrichum gloeosporioides and Stylosanthes scabra.
260 $c1988
520 $aThe histopathology of interactions between five genetically defined cultivars and accessions of Stylosanthes scabra and three pathotypes of Colletotrichum gloeosporioides was studied quantitatively and quantitatively. In all interactions studied prepenetration processes were generally similar, leading to the formation of predominantly sessile melanized appressoria. Penetration occurred only from melanized appressoria, and in both compatible and incompatible interactions. There were generally significantly higher penetration levels for the compatible interactions. Differences in the extent of fungal growth in the cells of compatible and incompatible interactions were apparent by 48 h after inoculation. In the incompatible interactions, colony areas did not increase after 48h, and the fungus rarely penetrated more than two cells. Cell degeneration was not evident with light microscopy in the first 48h, even though up to six cells were penetrated by this time in susceptible hosts. Collapse of epidermal and mesophyll cells in susceptible hosts was, however, evident by 72 h.
650 $aAntracnose
653 $aFungos - colletotrichum gloeosporioides
653 $aLeguminosa - stylosanthes scabra
653 $aPastagem - leguminosas
700 1 $aIRWIN, J. A.
700 1 $aCAMERON, D. F.
773 $tTransactions of the British Mycological Society$gv.90, n.3, p.421-429, 1988.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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