Data/hora: 06/06/2024 16:20:08

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 14/05/2004
Data da última atualização: | 14/05/2004
Autoria: | DECLERCK, S.; D'OR, D.; BIVORT, C.; SOUZA, F. A. de.
Título: | Development of extraradical mycelium of Scutellopora reticulata under root-organ culture: spore production and function of auxiliary cells.
Ano de publicação: | 2004
Fonte/Imprenta: | Mycological Research, New York, v.108. n. 1, p. 84-92, jan. 2004.
Idioma: | Inglês
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.
Palavras-Chave: | Scutellospora reticulata.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (29872-1) - UMT - SP - -- -  -  - 22708 - DIS