Toxic metabolites from culture filtrate of Fusarium oxysporum and its effects on cucumber cells and plantlets

Revista de Microbiologia

Melo, Itamar Soares de¹  EMBRAPA, Jaguariúna, Brasil¹  Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, Brasil¹  Piccinin, Everaldo¹ 

关键词: Fusarium oxysporum;    single cells;    cucumber;    toxic metabolites;   

DOI  :  10.1590/S0001-37141999000200003

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Microbiologia / Brazilian Society for Microbiology

【 摘 要 】

Resistance of cucumber plantlets to culture filtrate of Fusarium oxysporum is correlated with resistance of single cells from callus. Single cells and plantlets of two cultivars of cucumber were incubated with culture filtrates. Rapid cell death occurred, as assessed by the stain fluorescein diacetate. More cell death ocurred in the cells of the cultivar Aodai than in to cells of the cultivar Caipira, which presented high level of resistance. Maximum toxic activity of culture filtrates was attained after 21-25 days of growth of the fungus.

【 授权许可】

Unknown