Epiphytic Bacterial Selection for Anthracnose Disease Control of Passionfruit
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Abstract
Controlling Colletotrichum sp. cause of anthracnose disease in passionfruit by selection of epiphytic bacteria. Using the sample from growing passionfruit in greenhouse at faculty of Agriculture, Chiang Mai University. Of the 11 mocroorganisms isolated from passionfruit leaves and screened by dual cultures, only 3 isolates (CMA-1, CMM-1 and CMJ-1) had antagonistic effects against Colletotrichum sp. on potato dextrose agar (PDA). CMJ-1 had a significantly (P=0.05) highest inhibitory effect, that was 41.99% while CMA-1 and CMM-1 were 35.45 and 34.30% respectively. CMM-1 and CMJ-1 were Gram-positive but CMJ-1 was Gram-negative. Based on the nutrient profiles revealed by the BIOLOG system, isolate CMM-1, CMJ1 and CMA-1 were identified as Bacillus subtilis, Bacillus amyloliquefaciens and
Enterobacter sakazakii, respectively.
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