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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
14/05/2004 |
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Data da última atualização: |
14/05/2004 |
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Autoria: |
DECLERCK, S.; D'OR, D.; BIVORT, C.; SOUZA, F. A. de. |
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Título: |
Development of extraradical mycelium of Scutellopora reticulata under root-organ culture: spore production and function of auxiliary cells. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Mycological Research, New York, v.108. n. 1, p. 84-92, jan. 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
The development of the extraradical mycelium and auxiliary cells and spore production of Scutellospora reticulata in association with Ri-DNA transformed carrot was followed under root-organ culture conditions. Extraradical mycelium development followed classical lag-exponential-plateau phases, with an additional late decline phase en number of auxiliary cells. Spore production started in parallel with a critical extraradical mycelium biomass produced, continued long after root growth ceased and during the late decline in auxiliary cells were shown to exhibit hyphal re-growth, but not root colonization, either in situ or in vitro. These results showed that root and extraradical mycelium development were intimately associated in a sequence where both grew together during active root growth, followed during root aging by a period in which only the fungus developed. Spore production appeared dependent on a critical extraradical mycelium biomass on the re-allocation of resources from both the intraradical mycelium and the auxiliary cells via the hyphal network. |
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Palavras-Chave: |
Scutellospora reticulata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01624naa a2200169 a 4500
001 1625778
005 2004-05-14
008 2004 bl --- 0-- u #d
100 1 $aDECLERCK, S.
245 $aDevelopment of extraradical mycelium of Scutellopora reticulata under root-organ culture$bspore production and function of auxiliary cells.
260 $c2004
520 $aThe development of the extraradical mycelium and auxiliary cells and spore production of Scutellospora reticulata in association with Ri-DNA transformed carrot was followed under root-organ culture conditions. Extraradical mycelium development followed classical lag-exponential-plateau phases, with an additional late decline phase en number of auxiliary cells. Spore production started in parallel with a critical extraradical mycelium biomass produced, continued long after root growth ceased and during the late decline in auxiliary cells were shown to exhibit hyphal re-growth, but not root colonization, either in situ or in vitro. These results showed that root and extraradical mycelium development were intimately associated in a sequence where both grew together during active root growth, followed during root aging by a period in which only the fungus developed. Spore production appeared dependent on a critical extraradical mycelium biomass on the re-allocation of resources from both the intraradical mycelium and the auxiliary cells via the hyphal network.
653 $aScutellospora reticulata
700 1 $aD'OR, D.
700 1 $aBIVORT, C.
700 1 $aSOUZA, F. A. de
773 $tMycological Research, New York$gv.108. n. 1, p. 84-92, jan. 2004.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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