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Journal of Tea Science ›› 2021, Vol. 41 ›› Issue (3): 371-378.doi: 10.13305/j.cnki.jts.2021.03.005

• Research Paper • Previous Articles     Next Articles

Volatile Organic Compounds from Fresh Tea Leaves and Their Fumigation Antifungal Activities on Fungal Pathogens of Tea Plants

ZHI Yanan1,2, XU Yunfei1, ZHU Mingxing1, WANG Chunsheng1,2, JIN Yinli1,2, CHEN Lijun1,2,*   

  1. 1. Agriculture College, Xinyang Agriculture and Forestry University, Xinyang 464000, China;
    2. Henan Provincial South Henan Crop Pest Green Prevention and Control Academician Workstation, Xinyang 464000, China
  • Received:2020-06-08 Revised:2020-07-28 Online:2021-06-15 Published:2021-06-15

Abstract: In order to determine the relationship between volatile organic compounds (VOCs) from fresh tea leaves and the main fungal pathogens of tea plants, the VOCs from fresh tea leaves were extracted and analyzed by HS-SPME-GC-MS. The fumigation antifungal activities of volatile monomers from fresh tea leaves against four fungal pathogens including Botryosphaeria dothidea, Colletotrichum camelliae, Colletotrichum gloeosporioides, Pestalotiopsis theae were also studied. The results show that 28 chemical compounds were found from VOCs of fresh tea leaves, and 19 of them were characterized, accounting for 94.405% of the total VOCs. The main chemical compounds were hexanoic acid, 3-hexenyl ester, (Z)-hexanoic acid-3-hexenyl ester (18.395%), leaf acetate (16.935%), ocimene (12.615%), and cis-3-hexenyl butyrate (11.210%). Cis-3-hexenyl butyrate exhibited strong fumigation antifungal effect on the four tested fungal pathogens, and the EC50 were lower than 61.29 μL·L-1. In conclusion, cis-3-hexenyl butyrate can be used as a potential fumigant control of tea diseases.

Key words: fresh tea leaves, fumigation, antifungal activity, VOCs, cis-3-hexenyl butyrate

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