Talaromyces variabilis interferes with Pythium aphanidermatum growth and suppresses Pythium-induced damping-off of cucumbers and tomatoes.
作者： Boshra A. Halo , Rashid A. Al-Yahyai , Sajeewa S. N. Maharachchikumbura , Abdullah M. Al-Sadi
DOI: 10.1038/S41598-019-47736-X
关键词:
摘要: Pythium-induced damping-off disease is a major limiting cucumber and tomato production in different parts of the world. The current study investigated efficiency Talaromyces variabilis its bioactive metabolites suppressing cucumbers tomatoes. T. inhibited vitro growth P. aphanidermatum solid liquid media. In addition, abnormalities hyphae were observed as result variabilis. Extracts from induced cellular leakage suppressed oospore aphanidermatum. Biochemical analyses showed that produces glucanase, cellulase siderophores, suggesting contribution these inhibition aphandermatum hyphal abnormalities. Treating seeds with spore mycelial suspension isolates led to significant improvement seedling survival aphanidermatum-inoculated seedlings 18 52% (improvement by 34%) for isolate 48 P 30–66% 36%) 28 R. Similarly, treating 7 36% 29%) 28 R 20 64% 44%) 48 P. Differences percent between experiments may be related difference efficacy two or their interaction hosts pathogen. use biocontrol diseases offer alternatives currently used chemical control.
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