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

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, , Citation A Khaeruni et al 2019 IOP Conf. Ser.: Earth Environ. Sci. 260 012136 DOI 10.1088/1755-1315/260/1/012136

1755-1315/260/1/012136

Abstract

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.

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10.1088/1755-1315/260/1/012136