Liu, P.; Yang, R.; Wang, Z.; Ma, Y.; Ren, W.; Wei, D.; Ye, W. Biocontrol Potential of Trichoderma asperellum CMT10 against Strawberry Root Rot Disease. Horticulturae2024, 10, 246.
Liu, P.; Yang, R.; Wang, Z.; Ma, Y.; Ren, W.; Wei, D.; Ye, W. Biocontrol Potential of Trichoderma asperellum CMT10 against Strawberry Root Rot Disease. Horticulturae 2024, 10, 246.
Liu, P.; Yang, R.; Wang, Z.; Ma, Y.; Ren, W.; Wei, D.; Ye, W. Biocontrol Potential of Trichoderma asperellum CMT10 against Strawberry Root Rot Disease. Horticulturae2024, 10, 246.
Liu, P.; Yang, R.; Wang, Z.; Ma, Y.; Ren, W.; Wei, D.; Ye, W. Biocontrol Potential of Trichoderma asperellum CMT10 against Strawberry Root Rot Disease. Horticulturae 2024, 10, 246.
Abstract
Strawberry root rot caused by Neopestalotiopsis clavispora is one of the main diseases of strawberry and significantly impacts the yield and quality of strawberry fruit. There are now no effective control techniques available except for fungicide sprays, which may directly impact consumers. Biological control is becoming an alternative method for the control of plant diseases to replace or decrease the application of traditional synthetic chemical fungicides. Trichoderma is widely used as a biological agent for controlling strawberry root rot. In order to provide resources for screening the highly effective biocontrol fungus for controlling strawberry root rot caused by Neopestalotiopsis clavispora, the biocontrol mechanism,the control effects of Trichoderma asperellum CMT10 against strawberry root rot and growth-promoting effects on strawberry seedlings were investigated by plate culture, microscopy observation and root drenching methods.The results showed that CMT10 had obvious competitive, antibiotic and hyperparasitism effects on Neopestalotiopsis clavispora CMGF3. The CMT10 could quickly occupy nutritional space, and the inhibition rates of CMT10 against CMGF3 in confrontation culture on 7 d was 65.49%. The inhibition rates of volatile metabolite and fermentation metabolite produced by CMT10 against CMGF3 were 79.67% and 69.84%, respectively. The mycelium of strain CMT10 can act as hyperparasites by making contacting, winding and penetrating hyphae of CMGF3. Pot experiment showed that the biocontrol efficacy of CMT10 on strawberry root rot caused by Neopestalotiopsis clavispora was 63.00%. CMT10 had obvious promotion effect on strawberry growth, the plant height, root length, total fresh weight, root fresh weight, stem fresh weight and root dry weight, with the promotion rates were 20.09%, 22.39%, 87.11%, 101.58%, 79.82% and 72.33%, respectively. Overall, this study showed the ability of Trichoderma asperellum CMT10 to control strawberry root rot and their potential to develop as novel biocontrol agents to replace chemical fungicides for eco-friendly, sustainable agriculture.
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