Isolation and Screening of Trichoderma spp. from Bamboo Soil in Nam Tok Yong National Park, Nakhon Si Thammarat Province for Inhibition of Phytophthora palmivora (Butler) Butler.

Angkana Saikeur


In this study, five isolates of Trichoderma species were isolated from bamboo soil in Nam Tok Yong National Park by soil dilution plate method using Martin’s medium. Antagonistic activity assay of all isolates of Trichoderma species were carried out by using dual culture plate technique against Phytophthora palmivora, a causative agent of root and stem rot disease of durian. Trichoderma sp. NTY111, NTY211, NTY212, NTY214 and NTY311 were found to inhibit the mycelium growth of plant pathogen with the percentage of 82.33, 81.15, 69.38, 69.35 and 41.10, respectively, when compare to the antifungal activity of Trichoderma harzianum (commercial strain). However, the inhibition of fungal mycelia of commercial strain did not significantly different (P<0.05) from the isolates NTY111 and NTY211.


photosynthetic bacteria, 5-aminolevulinic acid, Plackett-Burman

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Progress in Applied Science and Technology

Faculty of Science and Technology