Effect of phenolic acids derived from rice straw on Botrytis cinerea and infection on tomato

Rongrong HOU, Jie SHI, Xiubing MA, Huanran WEI, Jiajun HU, Yiu Fai TSANG, Min-Tian GAO

Research output: Contribution to journalArticle

Abstract

Phenolic compounds are widely used in different research fields, such as pesticides, medicines, and food. In this study, phenolic acids (PAs) were extracted from rice straw and were found to exhibit a strong inhibitory effect on Botrytis cinerea. B. cinerea mycelial growth and spore generation decreased by 86.18% and 69.10%, respectively, following 0.2 g/L phenolic acid treatment. Confocal microscopic images demonstrated that phenolic acids changed the morphology of B. cinerea. The addition of phenolic acids to B. cinerea-infected tomato leaves increased PAL (phenylalaninammo-nialyase) and PPO (polyphenol oxidase) activities, and decreased POD (peroxidases) and CAT (catalase) activities in the leaves, indicating that phenolic acids enhanced the tolerance of tomato leaves to B. cinerea by reducing oxidative stress. Chlorophyll fluorescence imaging revealed that phenolic acids could alleviate the destruction of the photosynthetic system of B. cinerea-infected leaves. These results provide new insight into the use of phenolic acids from rice straw, through which a complete green cycle of ecological production can be established. Copyright © 2020 Springer Nature B.V.
Original languageEnglish
JournalWaste and Biomass Valorization
Early online date14 Jan 2020
DOIs
Publication statusE-pub ahead of print - 14 Jan 2020

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Straw
straw
rice
Acids
acid
Oxidative stress
phenolic compound
Chlorophyll
Pesticides
effect
infection
medicine
Medicine
spore
chlorophyll
fluorescence
tolerance
pesticide
Fluorescence
Imaging techniques

Citation

Hou, R., Shi, J., Ma, X., Wei, H., Hu, J., Tsang, Y. F., & Gao, M.‑T. (2020). Effect of phenolic acids derived from rice straw on Botrytis cinerea and infection on tomato. Waste and Biomass Valorization. Advance online publication. doi: 10.1007/s12649-020-00938-1

Keywords

  • Agricultural waste
  • Bioactives
  • Phenolic compound
  • Antimicrobial activity
  • Plant growth
  • Fungicide