Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (9): 155-159.doi: 10.11924/j.issn.1000-6850.casb2020-0383

Special Issue: 植物保护

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Secondary Metabolites Extracted from Three Plant Species: Antibacterial Effects on Six Strains of Fusarium Wilt

Wei Qianqian(), Zheng Ruirui, Chen Yunkun, Hu Chunyan, Feng Xue, Cao Hui()   

  1. College of Plant Protection, Shanxi Agricultural University, Jinzhong Shanxi 030801
  • Received:2020-08-20 Revised:2020-11-25 Online:2021-03-25 Published:2021-04-09
  • Contact: Cao Hui E-mail:129941648@qq.com;liusuqi71@163.com

Abstract:

Fusarium wilt, one of the most threatening soil-borne diseases of agriculture, affects the yield and quality of many crops seriously. The purposes of this study are to explore and develop the environmental friendly plant resources with effective and strong inhibition of fusarium wilt, and to provide a theoretical basis for the research of plant-derived fungicides. The extracts of Syzygium aromaticum, Glycyrrhiza uralensis and Stellera chamaejasme were used as materials, and the antifungal activities against six kinds of fusarium wilt fungi were determined by mycelial growth rate method. The results demonstrated that the three kinds of plant extract could all inhibit the six kinds of fungi at 2 mg/mL, the antifungal rate was above 44.5% after 96 h. S. aromaticum showed the highest inhibition activity with EC50 value ranged in 0.1473-0.3785 mg/mL; the EC50 value of G. uralensis and S. chamaejasme was 0.1866-2.6262 mg/mL and 0.6281-3.1703 mg/mL, respectively. The results show that the extract of S. aromaticum, G. uralensis and S. chamaejasme have better antifungal activity against the six kinds of fungi, and could be explored as the new botanical pesticide against fusarium wilt.

Key words: plant extract, soil-borne diseases, Syzygium aromaticum, Glycyrrhiza uralensis, Stellera chamaejasme, fusarium wilt pathogen, botanical fungicide, antifungal activity

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