土壤2017，Vol.49Issue(5)：1053-1057,5.DOI:10.13758/j.cnki.tr.2017.05.029
黄顶菊入侵对土壤氨氧化古菌群落多样性的影响
Effects ofFlaveria bidentis Invasion on Diversity of Soil Ammonia-oxidizing Archaea
摘要
Abstract
To understand the effects of invasive plant Flaveria bidentison nitrification processes, the community structures of soil ammonia-oxidizing archaea (AOA) were investigated using the method of PCR-DGGE in a Flaveria bidentis invaded habitat in Jinghai County of Tianjin, China. The results showed that the diversity of AOA community tended to increase with F. bidentis invasion. The Shannon diversity indexes (H) of AOA were in an order of invaded bulk soil > invaded rhizosphere soil > non-invaded soil, with significant differences detected. Ammonium nitrogen and pH value were the key factors determining the community structure of AOA. All identified AOA belonged to Nitrososphaera cluster, the presence of specific ammonia-oxidizing archaea mainly contributed to higher diversity of AOA found in F. bidentis-invaded soil.关键词
黄顶菊/氨氧化古菌/微生物多样性/根际效应/入侵植物Key words
Flaveria bidentis/Ammonia-oxidizing archaea/Microbial diversity/Rhizosphere effect/Invasive plant分类
农业科技引用本文复制引用
李科利,赵晓红,刘红梅,杨殿林,曲波,皇甫超河..黄顶菊入侵对土壤氨氧化古菌群落多样性的影响[J].土壤,2017,49(5):1053-1057,5.基金项目
天津市自然科学基金项目(12JCQNJC09800)和公益性行业(农业)科研专项经费项目(201103027 （12JCQNJC09800）
200803022)资助. （）
