生物学杂志 ›› 2020, Vol. 37 ›› Issue (2): 46-.doi: 10.3969/j.issn.2095-1736.2020.02.046

• 研究报告 • 上一篇    下一篇

拉萨地区青稞种植土壤中细菌多样性高通量分析

  

  1. 1. 西藏自治区农牧科学院 农业质量标准与检测研究所, 拉萨 850032; 2. 湖南农业大学 生物科学技术学院, 长沙 410128
  • 出版日期:2020-04-18 发布日期:2020-04-17
  • 通讯作者: 田云,博士,教授,主要从事农业微生物资源与利用研究工作,E-mail:tianyun@hunan.edu.cn
  • 作者简介:刘青海,硕士,助理研究员,主要从事农业环境方面的研究,E-mail:17199551@qq.com
  • 基金资助:
    西藏自治区财政专项项目(XZNKY-2018-C-026);西藏自治区自然科学基金(XZ2017ZRG-42);长沙市科技计划项目(kq1706025);湖南农业大学“双一流”建设项目(SYL201802002)

High-throughput analysis of bacterial diversity in highland barley cultivation soil in Lhasa

  1. 1.Institute of Agricultural Product Quality Standard and Testing Research, Tibet Academy of Agricultural and Animal Husbandry Sciences, Tibet 850032; 2. College of Bioscience and Biotechnology,Hunan Agricultural University, Changsha 410128, China
  • Online:2020-04-18 Published:2020-04-17

摘要: 为了解拉萨地区青稞种植农田土壤中细菌群落结构,明确不同青稞生长时期和不同地点对细菌多样性的影响,以青稞种植土壤为试验材料,通过高通量测序技术分析青稞种植土壤中细菌的群落结构及多样性。结果显示:本次种植青稞土壤微生物测序每个样品获得37 265~40 008条有效序列和4094~4730个OTU,稀释曲线和测序深度指数反映此次测序结果比较全面地覆盖了土壤微生物群落;不同时期各样品的Shannon指数和OTU数量均值大小为Group 1(3月25日、播种前期)<Group 2(7月8日、灌浆期)<Group 3(9月28日、收获后期),不同时期菌落组成和菌落数量在Gp16、Gaiella、Ilumatobacter和Nocardioides等存在差异;随着青稞的生长发育,其土壤样品中细菌多样性和细菌数量逐渐增加;青稞播种前期和收获后期不同地点土壤细菌丰富度指数高于灌浆期;土壤细菌群落优势种群主要为酸杆菌门(Acidobacteria)的Gp6、Gp4、Gp7和Gp16,芽单胞菌门(Gemmatimonas)的鞘氨醇单胞菌属(Sphingomonas)和芽生球菌属(Blastococcus),放线菌门的Gaiella、节细菌属(Arthrobacter)和类诺卡氏菌属(Nocardioides)等。青稞播种前期和收获后期不同地区土壤细菌群落组成差异显著,青稞播种前期6号和9号样品细菌群落同时含有的Ohtaekwangia是同时期其他样品中所没有的,青稞收获后期3号和4号样品细菌群落分别含有的Opitutus和假诺卡氏菌属(Pseudonocardia)与其他样品微生物群落组成差异显著。

关键词: 拉萨, 青稞, 农田土壤, 细菌多样性, 高通量测序

Abstract: In order to understand the bacterial community structure in the farmland soil of highland barley planting in Lhasa, and to clarify the influence of different growing periods and different locations of highland barley on the bacterial diversity, the community structure and diversity of bacteria in highland barley cultivation soil were analyzed by high-throughput sequencing technology with the highland barley cultivation soil as the experimental material. Result showed that 37 265-40 008 effective sequences and 4094-4730 OTU were obtained from each sample of highland barley soil microbial sequencing in this study. According to the rarefaction curve and sequencing depth index, the result of the sequencing was more comprehensive covering the soil microorganism community. Shannon index and OTU number of each sample in different periods showed Group 1 (March 25, sowing early) 

Key words: Lhasa, highland barley, farmland soil, bacterial diversity, illumina miseq sequencing

中图分类号: