Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (23): 38-44.doi: 10.11924/j.issn.1000-6850.casb2020-0501

Special Issue: 生物技术

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Antibacterial and Anti-anthracnose Activities of Endophytic Fungi Colonized in Blumea balsamifera (L.) DC.

Yuan Chao1(), Shu Xuechun2, Zhang Yingbo1, Wang Kai1, Xie Xiaoli1, Xu Ziqi3(), Yuan Yuan4()   

  1. 1Tropical Crops Genetic Resources Institute, CATAS/Hainan Engineering Research Center for Blumea balsamifera, Danzhou Hainan 571737
    2College of Forestry, Hainan University, Haikou 570228
    3The First Affiliated Hospital of Shandong First Medical University, Jinan 250014
    4School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006
  • Received:2020-09-25 Revised:2021-01-18 Online:2021-08-15 Published:2021-08-26
  • Contact: Xu Ziqi,Yuan Yuan E-mail:yuanchao79@126.com;490098695@qq.com;yuanyuanhaida@126.com

Abstract:

To obtain abundant endophytic fungi from Blumea balsamifera (L.) DC., and select bio-control strains for discovery of bioactive metabolites, water-agar method was used to isolate endophytic fungi from Blumea balsamifera (L.) DC distributed in Hainan Island. ITS analysis was adopted for identification and analysis of endophytic fungi. Furthermore, the activities of fermented endophytes culture extract against four strains of bacteria were tested by filtering paper method. Plate confrontation was carried out to evaluate the inhibitory effects of endophytes on four strains of anthracnose. As a result, 191 strains were isolated and identified, which belonged to 27 genuses, 45 species, the dominant genuses included Diaporthe, Paraphoma, Ectophoma, Penicillium, Talaromyces, Hypoxylon, Phomopsis, Colletotrichum and Fusarium. Clonostachys, Fusarium and Diapothe were more active in antibacterial assay. Anti-anthracnose results showed that the endophyts belonged to Talaromyces, Ectophoma and Penicillium toughly inhibited four strains of anthracnose. In conclusion, our research preliminary discussed the category variety of endophytic fungi derived from Blumea balsamifera collected in Hainan Island, bioactivity-guided screening was carried out firstly, and the selected active endophytic fungi may serve as candidates for founding new agronomic agents.

Key words: Blumea balsamifera (L.) DC., endophytic fungi, antimicrobial activity, anti-anthracnose activity, microbial agent

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