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五大连池火山岩土壤发育过程中根际细菌多样性分析
引用本文:张建峰,何佩佩,周奇,马丽娜,田磊,田春杰.五大连池火山岩土壤发育过程中根际细菌多样性分析[J].东北农业大学学报,2017,48(5).
作者姓名:张建峰  何佩佩  周奇  马丽娜  田磊  田春杰
作者单位:1. 吉林农业大学生命科学学院,长春130118;中国科学院东北地理与农业生态研究所,长春130102;2. 吉林农业大学生命科学学院,长春,130118;3. 中国科学院东北地理与农业生态研究所,长春,130102
基金项目:吉林省教育厅项目,国家重点研发计划项目,吉林省科技厅项目
摘    要:选取五大连池火山群中三座火山为研究对象,采用PCR-DGGEB联用技术研究火山岩土壤发育过程与根际细菌多样性间相关性。结果表明,随火山喷发后时间推移,三座火山南坡有机质和全氮含量先增后稳,北坡土壤有机质和全氮含量先增后减,南北坡土壤p H不断升高。运用Bio-Dap软件分析发现,随时间推移,三座火山南坡细菌丰富度和多样性指数变化趋势为先增后减,北坡为先减后增,南北坡均匀度变化趋势均先增后稳。采用SPSS软件作相关性分析,三座火山南北坡根际细菌多样性指数及丰富度与土壤有机质显著正相关(P0.05)。根际细菌群落多样性受火山岩土壤发育程度影响。

关 键 词:五大连池  火山岩  土壤发育  根际细菌  变性梯度凝胶电泳

Diversity analysis of the rhizosphere bacteria in soil development of Wudalianchi volcanic rock
ZHANG Jianfeng,HE Peipei,ZHOU Qi,MA Lina,TIAN Lei,TIAN Chunjie.Diversity analysis of the rhizosphere bacteria in soil development of Wudalianchi volcanic rock[J].Journal of Northeast Agricultural University,2017,48(5).
Authors:ZHANG Jianfeng  HE Peipei  ZHOU Qi  MA Lina  TIAN Lei  TIAN Chunjie
Abstract:Using the active volcanoes of Wudalianchi as the research object and selecting the three volcanoes with larger eruption interval as the representatives,the correlation of soil development and the diversity of rhizosphere bacteria was studied with PCR-DGGE combination technology.The results showed that,with the extension of time after volcanic eruption,the changing trend of the soil organic matter and total nitrogen content in south slope of the three-volcano was leveling off after increasing,while the trend in the north was decreasing after increasing.Finally,the soil pH of north and south slopes of the three-volcano was consistently rising with the changing trend.BIODAP software was used to analyze the diversity of rhizosphere bacteria,and the results indicated that,with the extension of time after volcanic eruption,the changing trend of bacterial richness and diversity index in south slope of the three-volcano was decreasing after increasing,while the trend in the north slope was increasing after decreasing.And the evenness variation trend of the three-volcano south and north slopes was the same,which seemed to be leveling off after increasing.The rhizosphere bacterial abundance and diversity index had significantly positive correlation with the soil organic matter by using SPSS software for the correlation analysis (P<0.05).In conclusion,the community diversity of rhizosphere bacteria was influenced by the degree of soil development.
Keywords:Wudalianchi  volcanic rocks  pedogenesis  rhizosphere bacterial  denaturing gradient gel electrophoresis(DGGE)
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