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Article

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

by
Jiaqi You
1,
Guoqing Li
2,
Chaohan Li
1,
Lihua Zhu
1,
Hongjuan Yang
1,
Ronghao Song
3 and
Weihong Gu
1,*
1
Shanghai Key Lab of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
2
State Key Laboratory of Agricultural Microbiology, Collage of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
3
Plant Protection Research Institute, Shanghai Academy of Agricultural Science, Shanghai 201106, China
*
Author to whom correspondence should be addressed.
J. Fungi 2022, 8(2), 131; https://doi.org/10.3390/jof8020131
Submission received: 31 December 2021 / Revised: 23 January 2022 / Accepted: 27 January 2022 / Published: 28 January 2022
(This article belongs to the Section Fungal Pathogenesis and Disease Control)
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Abstract

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.
Keywords: biological control; trichoderma; VOCs; botrytis cinerea; fusarium oxysporum biological control; trichoderma; VOCs; botrytis cinerea; fusarium oxysporum

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MDPI and ACS Style

You, J.; Li, G.; Li, C.; Zhu, L.; Yang, H.; Song, R.; Gu, W. Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51. J. Fungi 2022, 8, 131. https://doi.org/10.3390/jof8020131

AMA Style

You J, Li G, Li C, Zhu L, Yang H, Song R, Gu W. Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51. Journal of Fungi. 2022; 8(2):131. https://doi.org/10.3390/jof8020131

Chicago/Turabian Style

You, Jiaqi, Guoqing Li, Chaohan Li, Lihua Zhu, Hongjuan Yang, Ronghao Song, and Weihong Gu. 2022. "Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51" Journal of Fungi 8, no. 2: 131. https://doi.org/10.3390/jof8020131

APA Style

You, J., Li, G., Li, C., Zhu, L., Yang, H., Song, R., & Gu, W. (2022). Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51. Journal of Fungi, 8(2), 131. https://doi.org/10.3390/jof8020131

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