期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Drought stress and plant ecotype drive microbiome recruitment in switchgrass rhizosheath 被引量:2
1
作者 Tie-Yuan Liu Nenghui Ye +8 位作者 Xinyu Wang Debatosh Das Yuxiang Tan Xiangkai You mingxiu long Tianming Hu Lei Dai Jianhua Zhang Mo-Xian Chen 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2021年第10期1753-1774,共22页
The rhizosheath,a layer of soil grains that adheres firmly to roots,is beneficial for plant growth and adaptation to drought environments.Switchgrass is a perennial C4 grass which can form contact rhizosheath under dr... The rhizosheath,a layer of soil grains that adheres firmly to roots,is beneficial for plant growth and adaptation to drought environments.Switchgrass is a perennial C4 grass which can form contact rhizosheath under drought conditions.In this study,we characterized the microbiomes of four different rhizocompartments of two switchgrass ecotypes(Alamo and Kanlow)grown under drought or well-watered conditions via 16S ribosomal RNA amplicon sequencing.These four rhizocompartments,the bulk soil,rhizosheath soil,rhizoplane,and root endosphere,harbored both distinct and overlapping microbial communities.The root compartments(rhizoplane and root endosphere)displayed low-complexity communities dominated by Proteobacteria and Firmicutes.Compared to bulk soil,Cyanobacteria and Bacteroidetes were selectively enriched,while Proteobacteria and Firmicutes were selectively depleted,in rhizosheath soil.Taxa from Proteobacteria or Firmicutes were specifically selected in Alamo or Kanlow rhizosheath soil.Following drought stress,Citrobacter and Acinetobacter were further enriched in rhizosheath soil,suggesting that rhizosheath microbiome assembly is driven by drought stress.Additionally,the ecotype-specific recruitment of rhizosheath microbiome reveals their differences in drought stress responses.Collectively,these results shed light on rhizosheath microbiome recruitment in switchgrass and lay the foundation for the improvement of drought tolerance in switchgrass by regulating the rhizosheath microbiome. 展开更多
关键词 16S rRNA sequencing RHIZOSPHERE rhizosheath formation switchgrass(Panicum virgatum L.) water deficiency
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部