草地学报 ›› 2022, Vol. 30 ›› Issue (8): 2009-2018.DOI: 10.11733/j.issn.1007-0435.2022.08.010

• 研究论文 • 上一篇    

煤矸石山不同植物根际土壤AM真菌群落多样性分析

甄莉娜, 刘丽珍, 牛艳, 李侠, 李朕, 吴娜, 王润梅   

  1. 山西大同大学生命科学学院应用生物技术研究所, 山西 大同 037009
  • 收稿日期:2021-10-17 修回日期:2022-04-08 发布日期:2022-09-01
  • 通讯作者: 王润梅,E-mail:wangrunmei2004@tom.com
  • 作者简介:甄莉娜(1983-),女,山西洪洞人,博士,教授,主要从事矿区生态修复和草地土壤微生物研究,E-mail:zhenln2003@163.com
  • 基金资助:
    国家自然科学基金项目(31400479,31901227);山西省应用基础研究计划项目(201801D121258,201901D111306);大同市平城区重点研发计划项目(202003);大同大学科研项目(2021CXZ7,202177)共同资助

Analysis of AM Fungi Community Diversity in Rhizosphere Soil of Different Vegetation in Coal Gangue Mountain

ZHEN Li-na, LIU Li-zhen, NIU Yan, LI Xia, LI Zhen, WU Na, WANG Run-mei   

  1. Applied Biotechnology Institute, College of Life Science, Shanxi Datong University, Datong, Shanxi Province 037009, China
  • Received:2021-10-17 Revised:2022-04-08 Published:2022-09-01

摘要: 为探讨不同植物类型对煤矸石山丛枝菌根(Arbuscular mycorrhiza,AM)真菌群落的影响,本研究通过高通量测序的方法,调查了禾本科、菊科、豆科和藜科植物根际土壤的AM真菌群落结构及多样性,以期为煤矸石山生态修复中植物种类的选择提供理论依据。结果表明:4科植物共获得球囊菌门(Glomeromycota)OTU数454个,分属于5目7科7属 41种,禾本科和藜科植物的OTU数量较多。禾本科AM真菌α多样性中的Chao1指数和Shannon指数最高,藜科组成较为单一,豆科植物根际土壤菌群多样性较低。RDA分析表明,土壤有机质和pH值对AM真菌群落影响作用较大,不同植物AM真菌生态网络关系差异显著,禾本科和黎科植物网络连接密集程度更高且核心物种组成更丰富。研究认为:煤矸石山恢复初期,不同科植物根际AM真菌群落多样性不同,禾本科植物通过与不同种类AM真菌形成良好的共生关系,促使其在煤矸石山恢复早期占据优势地位。

关键词: 煤矸石, 丛枝菌根真菌, 多样性

Abstract: In order to explore the effect of different vegetation types on arbuscular mycorrhizal fungal community in coal gangue dump,the rhizosphere AMF community structure and diversity of Gramineae, Asteraceae,Leguminosae and Chenopodiaceae were investigated by high-throughput sequencing to provide a theoretical basis for plant species selection in coal gangue dump recovering process. The results showed that there were 454 OTUs of Glomeromycota in four plant families,which belonged to 5 orders,7 families,7 genera and 41 species. The number of OTUs of Gramineae and Chenopodiaceae were higher than others. According to the analysis of AMF community structure histogram,the composition of Chenopodiaceae was relatively simple,and the diversity of rhizosphere flora of leguminous plants was low at the genus level. Chao1 and shannon index of gramineous plants were the highest,and the similarity coefficient of AM fungal community in soil rhizosphere of gramineous species was higher than other plants. RDA analysis showed that soil organic matter and pH were the main influencing factors of AM fungal community. There were significant differences in the ecological network relationship of AM fungi in rhizosphere soil of different plants. Gramineae and Chenopodiaceae plants had higher network connection density and richer core species composition than the others. The results showed that the diversity of AM fungal communities in the rhizosphere of different plant families was different in the early stage of coal gangue recovery,and gramineous species plants formed a better symbiotic relationship with AM fungi in different recovery phase,which promoteed them to occupy a dominant position in the early recovery stage of coal gangue dump.

Key words: Coal gangue dump, Arbuscular mycorrhizal fungi, Diversity

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