| Title: | Isolation and characterization of endophytic bacteria for controlling root rot disease of Chinese jujube |
| Author(s): | Wang X; Xiao C; Ji C; Liu Z; Song X; Liu Y; Li C; Yan D; Li H; Qin Y; Liu X; |
| Address: | "College of Horticulture, Shandong Agricultural Universities, Taian, Shandong, China. Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao, China. College of Forestry, Shandong Agricultural Universities, Taian, Shandong, China. State Key Laboratory of Bioactive Seaweed Substances, Qingdao Brightmoon Seaweed Group Co Ltd, Qingdao, China" |
| ISSN/ISBN: | 1365-2672 (Electronic) 1364-5072 (Linking) |
| Abstract: | "AIM: Fusarium oxysporum is the primary pathogen causing root rot disease that severely affects cultivation of jujube fruit in the Xinjiang province of China. The aim of this study was to identify endophytic bacteria in healthy jujube organs that could effectively suppress F. oxysporum growth. METHODS AND RESULTS: Different plant organs (leaves, twigs and roots) were collected from healthy Chinese jujube cultivated in southern Xinjiang province of China. The endophytic bacterium Brevibacterium halotolerans JZ7 was selected for its strong antagonistic activity and growth-promoting characteristics. Gas-chromatography mass-spectrometry analysis showed that acetoin, 2,3-butanediol and fenretinide were the three dominant volatile organic compounds produced by strain JZ7. Fenretinide strongly suppressed spore germination of F. oxysporum in vitro. Pot experiments showed that strain JZ7 colonized both the roots and rhizosphere soil of Chinese jujube and significantly reduced F. oxysporum level in jujube rhizosphere soil. CONCLUSION: We demonstrated that B. halotolerans JZ7 can be developed into a biological control agent to combat root rot disease of Chinese jujube in the Xinjiang province of China. SIGNIFICANCE AND IMPACT OF THE STUDY: The suggested strategy for biological control of jujube root rot disease is fully in accordance with the current principles of sustainability" |
| Keywords: | Antibiosis Bacillus/growth & development/isolation & purification/metabolism/*physiology *Biological Control Agents China Endophytes/growth & development/isolation & purification/metabolism/*physiology Fusarium/drug effects/growth & development Plant Dise; |
| Notes: | "MedlineWang, X Xiao, C Ji, C Liu, Z Song, X Liu, Y Li, C Yan, D Li, H Qin, Y Liu, X eng 201503112-10/Special Fund for Agro-Scientific Research in the Public Interest/ 2019LY003-5/Shandong Agricultural Science and Technology Fund/ 2019JZZY020614/Major Science and Technology Innovation project of the Shandong province/ 2019ZDYF013/Science and Technology Innovation and Development special project of Linyi city/ 201503112-10/the Special Fund for Agro-Scientific Research in the Public Interest/ 2019ZDYF013/the Science and Technology Innovation and Development special project of Linyi city/ England 2020/08/11 J Appl Microbiol. 2021 Mar; 130(3):926-936. doi: 10.1111/jam.14818. Epub 2020 Aug 24" |
