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Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51

文献类型： 外文期刊

作者： You, Jiaqi 1 ; Li, Guoqing 2 ; Li, Chaohan 1 ; Zhu, Lihua 1 ; Yang, Hongjuan 1 ; Song, Ronghao 3 ; Gu, Weihong 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Hort Res, Shanghai Key Lab Protected Hort Technol, Shanghai 201106, Peoples R China

2.Huazhong Agr Univ, Coll Plant Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

3.Shanghai Acad Agr Sci, Plant Protect Res Inst, Shanghai 201106, Peoples R China

关键词： biological control; trichoderma; VOCs; botrytis cinerea; fusarium oxysporum

期刊名称：JOURNAL OF FUNGI （ 影响因子：5.724； 五年影响因子：6.413 ）

ISSN：

年卷期： 2022 年 8 卷 2 期

页码：

收录情况： SCI

摘要： Trichoderma spp. are widely used in plant disease control and growth promotion due to their high efficacy and multiple biocontrol mechanisms. Trichoderma koningiopsis T-51 is an effective biocontrol agent against gray mold disease by direct contact. However, the indirect physical contact biocontrol potential of Trichoderma spp. is not clear. In this study, the volatile organic compounds (VOCs) produced by T-51 showed high inhibitory activity against plant pathogenic fungi Botrytis cinerea and Fusarium oxysporum. The percentage of B. cinerea and F. oxysporum mycelial growth inhibition by T-51 VOCs was 73.78% and 43.68%, respectively. In both B. cinerea and F. oxysporum, conidial germination was delayed, and germ tube elongation was suppressed when exposed to T-51 VOCs, and the final conidial germination rate of B. cinerea decreased significantly after T-51 treatment. The VOCs from T-51 reduced the Botrytis fruit rot of tomato compared with that noted when using the control. Moreover, the T-51 VOCs significantly increased the size and weight of Arabidopsis thaliana seedlings. Twenty-four possible compounds, which were identified as alkenes, alkanes, and esters, were detected in VOCs of T-51. These results indicate that T. koningiopsis T-51 can exert biological control by integrating actions to suppress plant disease and promote plant growth.

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