Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/105490
Unidade da Embrapa/Coleção:: Área de Informação da Sede - Artigo em periódico indexado (ALICE)
Data do documento: 22-Ago-2001
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: MOURA-COSA, P.H.
MANTELL, S. H.
Título: A Preliminary Evaluation of Cell and Tissue Culture Methods Suitable for Screening Anthrocnose Disease Reactions in Tropical Yams.
Edição: 1993
Fonte/Imprenta: Pesquisa Agropecuaria Brasileira, Brasilia, v.28, n.11, p.1297-1306,nov.1993
Idioma: en
Palavras-chave: Colletotrichum gloesporioides f
sp
dioscoreae
Czapek Dox aga
microplant.
Conteúdo: Effect of different temperatures (15, 19, 25 and 29 °C), media type (PDA and Czapek Dox agar) and light on sporulation of a Caribbean pathovar of Colletotrichum gloe-osporioides f.sp. dioscoreae were studied. Czapek Dox agar and temperature of 25 °C were found to be best conditions for supporting growth and sporulation of this organism. Long-term fungal cultures (2 years axenic culture) did not sporulate effectively under the above conditions unless they were first brought into contact with living tissues of Dioscorea. Methods for inoculation of yams with conidiospores of C. gloeosporioides were developed at the plant, mi-croplant and cell levels. In vitro shoot culture clones showed a similar range of disease reactions to the pathovar as field-grown plants. D. alata showed marked sensitivity to the disease while D. esculenta was the most tolerant species followed by D. composita and D. cayenensis. Dioscorea protoplasts responded differently when cultured in the presence of mycelial culture filtrates and Czapek Dox liquid medium. Glasshouse-raised plants developed anthracnose symptoms only after wounding.
NAL Thesaurus: clones.
Ano de Publicação: 1993
Aparece nas coleções:Artigo em periódico indexado (AI-SEDE) / Embrapa Informação Tecnológica (SCT)

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