浙江农业科学

浙江农业科学 ›› 2024, Vol. 65 ›› Issue (6): 1375-1378.DOI: 10.16178/j.issn.0528-9017.20230320

• 药用植物 • 上一篇    下一篇

一株滁菊酚酸降解菌的筛选及其促生能力的研究

吴瑞1(), 陈雨婷2, 曹启荣2, 朱琳1, 周成2,3,*()   

  1. 1.安徽科技学院 资源与环境学院,安徽 滁州 233100
    2.安徽科技学院 生命与健康科学学院,安徽 滁州 233100
    3.南京农业大学 资源与环境科学学院,江苏 南京 210095
  • 收稿日期:2023-05-21 出版日期:2024-06-11 发布日期:2024-06-20
  • 通讯作者: 周成(1985—),男,安徽铜陵人,教授,博士,主要从事微生物-植物互作研究工作,E-mail:zhoucheng@njau.edu.cn。
  • 作者简介:吴瑞(1996—),男,安徽滁州人,硕士研究生,从事微生物-植物互作研究工作,E-mail:1005683454@qq.com。
  • 基金资助:
    安徽省重点研究与开发计划(202004a06020003);安徽自然科学基金面上项目(2108085MC107);大学生创新创业训练计划(S202110879052);大学生创新创业训练计划(202110879023);安徽省教育厅杰青项目(2023AH020024);安徽省教育厅高校科学研究重点项目(KJ2021A0893);安徽省教育厅高校优秀青年人才支持计划一般项目(gxyq2022053);凤阳县科技计划项目(2023TPY04)

Screening of chrysanthenone-degrading bacteria strain and study on its growth-promoting effect

WU Rui1(), CHEN Yuting2, CAO Qirong2, ZHU Lin1, ZHOU Cheng2,3,*()   

  1. 1. College of Resource and Environment, Anhui Science and Technology University, Chuzhou 233100,Anhui
    2. College of Life and Health Sciences, Anhui Science and Technology University, Chuzhou 233100,Anhui
    3. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjiing 210095, Jiangsu
  • Received:2023-05-21 Online:2024-06-11 Published:2024-06-20

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摘要：

随着滁菊长期连续种植,土壤中积累了大量的酚酸类化合物,酚酸降解菌可以通过降解土壤中的酚酸类化合物来缓解连作障碍。该研究从滁菊连作土壤中分离了85株酚酸降解菌,通过测定菌株的降解效率及其促生效果,筛选出一株具有滁菊酚酸降解能力的根际促生菌。鉴定结果表明,该菌株为伯克霍尔德氏菌属VA-7,对各类酚酸降解率均在45%以上,且具备固氮、解磷、解钾、产铁载体和产生长素(IAA)的能力。研究结果为缓解滁菊的连作障碍提供新的理论依据。

关键词: 连作障碍, 酚酸类物质, 酚酸降解菌, 根际促生菌

Abstract:

With the prolonged continuous cultivation of Chrysanthemum morifolium (Chuju), a substantial accumulation of phenolic acid compounds has occurred in the soil. Phenolic acid-degrading bacteria can alleviate the obstacles of continuous cropping by degrading these compounds in the soil. In this study, 85 strains of phenolic acid-degrading bacteria were isolated from the continuous cropping soil of Chrysanthemum morifolium. By evaluating the degradation efficiency and growth-promoting effects of these strains, a rhizosphere-promoting bacterium with the ability to degrade phenolic acids in Chrysanthemum morifolium was selected. Identification results revealed that the strain belonged to the Burkholderia genus VA-7, exhibiting a degradation rate of over 45% for various phenolic acids. Additionally, the strain demonstrated capabilities for nitrogen fixation, phosphorus solubilization, potassium release, iron carrier production, and indole-3-acetic acid (IAA) synthesis. This study provides a new theoretical basis for alleviating the continuous cropping obstacles of Chrysanthemum morifolium.

Key words: continuous cropping obstacles, phenolic acid compounds, phenolic acid-degrading bacteria, rhizosphere-promoting bacteria

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