新疆农业科学 ›› 2024, Vol. 61 ›› Issue (11): 2742-2749.DOI: 10.6048/j.issn.1001-4330.2024.11.015

• 作物遗传育种·耕作栽培 • 上一篇    下一篇

4种沙漠植物固氮菌的分离与固氮活性检测

王丽君1(), 孙蓓蓓1, 王春燕2, 夏占峰2, 马国财1()   

  1. 1.塔里木大学分析测试中心,新疆阿拉尔 843300
    2.塔里木大学生命科学与技术学院,新疆阿拉尔 843300
  • 收稿日期:2024-05-27 出版日期:2024-11-20 发布日期:2025-01-08
  • 通信作者: 马国财(1978-),男,辽宁朝阳人,高级实验师,研究方向为微区分析,(E-mail)18845420@qq.com
  • 作者简介:王丽君(1981-),女,山东聊城人,高级实验师,研究方向为微生物资源,(E-mail)1489968232@qq.com
  • 基金资助:
    新疆生产建设兵团财政科技计划项目“塔里木盆地来源微生物防治新疆主要农林病害菌剂的开发和应用”(2021BC009);新疆综合科学考察项目子课题“特殊环境微生物种质资源调查与收集”(2022xjkk150307);国家级大学生创新创业训练计划项目“基于塔里木盆地高抑菌活性放线菌发酵产物的生物农药创制”(202210757018)

Isolation and nitrogen-fixing activity detection of bacteria from four desert plants

WANG Lijun1(), SUN Beibei1, WANG Chunyan2, XIA Zhanfeng2, MA Guocai1()   

  1. 1. Analysis and Testing Center, Tarim University, Aral Xinjiang 843300,China
    2. College of Life Science and Technology, Tarim University, Aral Xinjiang 843300,China
  • Received:2024-05-27 Published:2024-11-20 Online:2025-01-08
  • Supported by:
    Financial and Technological Projects of the Xinjiang Production and Construction Corps "Development and application of microbial agents from the Tarim Basin for the prevention and control of major agricultural and forest diseases in Xinjiang″(2021BC009);Sub-project of the Xinjiang Comprehensive Scientific Investigation Project "Investigation and collection of microbial germplasm resources in special environments"(2022xjkk150307);National College Students' Innovation and Entrepreneurship Training Program "Development of biopesticides based on the fermentation products of high inhibitory active actinomycetes from the Tarim Basin"(202210757018)

摘要:

【目的】研究塔克拉玛干沙漠植物获取氮素营养的途径,为塔克拉玛干沙漠固氮菌资源的开发和干旱区生态环境的保护提供支持。【方法】以沙漠典型豆科植物苦豆子、柽柳科植物多枝柽柳、菊科植物花花柴和蓼子朴为研究对象,利用YMA(酵母甘露醇琼脂)和Ashby(阿须贝)无氮源培养基从植物根部分离固氮菌。【结果】从苦豆子样品分离获得19株菌,分布于11个属;从花花柴样品分离获得8株菌,分布于5个属;从蓼子朴样品分离获得5株菌,分布于5个属;从多枝柽柳样品分离获得4株菌,分布于2个属。YMA培养基分离获得28株菌,分布于15个属;Ashby无氮培养基分离获得8株菌,分布于7个属。10株菌有固氮活性,从多枝柽柳中获得的Rhizobium sp. 80417、从苦豆子中获得的Enterobacter sp.81227和Acinetobacter sp.81240、从花花柴中获得的Paenibacillus sp.80802 和Microbacterium sp.80803具有较强的固氮能力。【结论】固氮菌种类的多样化,促进了营养贫瘠环境氮元素的补充。

关键词: 塔克拉玛干沙漠; 苦豆子; 多枝柽柳; 花花柴; 蓼子朴; 固氮菌

Abstract:

【Objective】 In order to explore the ways for plants to obtain nitrogen nutrients in the Taklimakan Desert.【Methods】 the typical legume plants Sophora alopecuroides, Tamarix ramosissima, Karelinia caspica and Inula salsoloides were used as research materials.Nitrogen-fixing bacteria were isolated from plant roots using YMA and Ashby nitrogen-free medium.It provides support for the development of nitrogen-fixing bacteria resources in the Taklimakan Desert and the protection of the ecological environment in arid areas.【Results】 A total of 19 strains were isolated from Sophora alopecuroides samples, which were distributed in 11 genera.8 strains were isolated from Karelinia caspica samples and distributed in 5 genera.5 strains were isolated from Inula salsoloides samples and distributed in 5 genera.4 strains were isolated from Tamarix ramosissima samples and distributed in 2 genera.28 strains of bacteria were isolated from YMA medium, distributed in 15 genera; 8 strains of bacteria were isolated from Ashby nitrogen free medium and distributed in 7 genera.Rhizobium sp.80417 from Tamarix ramosissima, Enterobacter sp.81227 and Acinetobacter sp.81240 from Sophora alopecuroides, Paenibacillus sp.80802 and Microbacterium sp.80803 from karelinia caspica had strong nitrogen fixation ability.【Conclusion】 The diversity of nitrogen-fixing bacteria has promoted the supplement of nitrogen in nutrient poor environment.

Key words: Taklimakan Desert; Sophora alopecuroides; Tamarix ramosissima; Karelinia caspia; Inula salsoloides; nitrogen-fixing microorganism

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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