Study on Biological Characteristics of Trichoderma hamatum and the Inhibited Mechanism on Fusarium solani

doi:10.16409/j.cnki.2095-039x.2021.06.009

Abstract

Abstract: Trichoderma sp. LAN2B-1 isolated from orchid rhizosphere soil was identified as Trichoderma hamatum by morphological method and ITS sequence analysis. T. hamatum grew fastest on PDA medium, with mannitol as carbon source, pH value of 5, temperature of 25℃~30℃ and dark treatment. However, nitrogen source has little effect on its growth. Fermentation broth extracted from T. hamatum by chloroform had antifungal activity against Fusarium solani, with the inhibition rate of 59.38%. Fermentation broth could significantly reduce the soluble protein and sugar content of F. solani. The above results lay a foundation for the better application of T. hamatum against soil-borne diseases caused by F. solani.

Key words: identification, Trichoderma hamatum, Fusarium solani, antifungal activity

CLC Number:

S476

HU Xian, CHEN Chentong, XIE Yangjun, HE Shan, SHI Hongan, ZHANG Zhilin, BAI Cuihua. Study on Biological Characteristics of Trichoderma hamatum and the Inhibited Mechanism on Fusarium solani[J]. Chinese Journal of Biological Control, 2022, 38(1): 81-87.

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