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In vitro study on inhibition of Trichoderma sp. and their metabolites against Fusarium oxysporum f. sp. cubense

Du YiXin

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Abstract

Inhibition effect of 22 strains of Trichoderma sp.and their metabolites against Fusarium oxysporum f.sp.cubense race four(FOC)was studied in vitro.The bioassay data obtained indicated that the inhibition rates of(a) the tested strains on the FOC mycelia growth in the plate-culture experiments ranged from 61.76% to 100%,(b) the 20%(V/V) T.sp.culture filtrates were 11.83%-52.69%,(c) the non-volatile and volatile metabolites were 3.83%-74.62% and 11.17%-29.37%,respectively,and(d) the spherical conidia spore germination from FOC treated with 20%-50%(V/V) of T.05-049 culture filtrate for 9h and the sickle-shaped conidia for 6h were 86.60%-96.40% and 56.29%-85.41%,respectively.

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Inhibition effect of 22 strains of Trichoderma sp.and their metabolites against Fusarium oxysporum f.sp.cubense race four(FOC)was studied in vitro.The bioassay data obtained indicated that the inhibition rates of(a) the tested strains on the FOC mycelia growth in the plate-culture experiments ranged from 61.76% to 100%,(b) the 20%(V/V) T.sp.culture filtrates were 11.83%-52.69%,(c) the non-volatile and volatile metabolites were 3.83%-74.62% and 11.17%-29.37%,respectively,and(d) the spherical conidia spore germination from FOC treated with 20%-50%(V/V) of T.05-049 culture filtrate for 9h and the sickle-shaped conidia for 6h were 86.60%-96.40% and 56.29%-85.41%,respectively.

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Available abstract

Inhibition effect of 22 strains of Trichoderma sp.and their metabolites against Fusarium oxysporum f.sp.cubense race four(FOC)was studied in vitro.The bioassay data obtained indicated that the inhibition rates of(a) the tested strains on the FOC mycelia growth in the plate-culture experiments ranged from 61.76% to 100%,(b) the 20%(V/V) T.sp.culture filtrates were 11.83%-52.69%,(c) the non-volatile and volatile metabolites were 3.83%-74.62% and 11.17%-29.37%,respectively,and(d) the spherical conidia spore germination from FOC treated with 20%-50%(V/V) of T.05-049 culture filtrate for 9h and the sickle-shaped conidia for 6h were 86.60%-96.40% and 56.29%-85.41%,respectively.

Key concepts: Fusarium oxysporum f.sp. cubense, Mycelium, Conidium, Fusarium oxysporum, Spore germination, In vitro, Germination, Biology

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In vitro study on inhibition of Trichoderma sp. and their metabolites against Fusarium oxysporum f. sp. cubense — Research Paper | ScholarLens