In vitro test of endophytic antagonist activity for Colletotrichum gloeosporioides, causal agent of antracnose in cocoa

[摘要] This study aimed to screen the endophytic bacteria and to establishe their potential as biological control agents against Antrachnose disease in Cocoa. In-vitro testing through duel culture on PPDA media was carried out to select endophytic bacteria which had inhibitory ability against C. gloeosporioides isolates CDKW01. The five best isolates were selected for the activity and antagonistic mechanism against C. gloeosporioides isolates CDKS02 and CBKS03. Endophytic bacterial isolates of 2RWB2, 5BPR1, and 3 BPL had very strong inhibitory ability (> 50%) with an antagonistic mechanism in the form of the ability to produce antibiosis compounds, lyse walls and compete with pathogens.

[发布机构] Department of Plant Protection, Faculty of Agriculture, Universitas Halu Oleo, Kendari, Indonesia^1;Department of Agrotechnology, Faculty of Agriculture, Universitas Halu Oleo, Kendari, Indonesia^2

[效力级别] 生态环境科学

[关键词] Bacterial isolates;Biological control agent;Colletotrichum gloeosporioides;Endophytic bacteria;In-vitro testing;In-vitro tests