干旱区生态环境知识资源中心(Arid): Sugar and organic acid availability modulate soil diazotroph community assembly and species co-occurrence patterns on the Tibetan Plateau

Arid

DOI	10.1007/s00253-021-11629-9
	Sugar and organic acid availability modulate soil diazotroph community assembly and species co-occurrence patterns on the Tibetan Plateau
	Ding, Xiaowei; Liu, Kaihui; Yan, Qingyun; Liu, Xingyu; Chen, Ni; Wang, Guoliang; He, Shuai
通讯作者	Liu, KH (corresponding author), Shaanxi Univ Sci & Technol, Sch Food & Biol Engn, Xian 710021, Peoples R China.
来源期刊	APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
ISSN	0175-7598
EISSN	1432-0614
出版年	2021
英文摘要	Metabolites can mediate species interactions and the assembly of microbial communities. However, how these chemicals relate to the assembly processes and co-occurrence patterns of diazotrophic assemblages in root-associated soils remains largely unknown. Here, we examined the diversity and assembly of diazotrophic communities and further deciphered their links with metabolites on Tibetan Plateau. We found that the distribution of sugars and organic acids in the root-associated soils was significantly correlated with the richness of diazotrophs. The presence of these two soil metabolites explains the variability in diazotrophic community compositions. The differential concentrations of these metabolites were significantly linked with the distinctive abundances of diazotrophic taxa in same land types dominated by different plants or dissimilar soils by same plants. The assembly of diazotrophic communities is subject to deterministic ecological processes, which are widely modulated by the variety and amount of sugars and organic acids. Organic acids, for instance, 3-(4-hydroxyphenyl)propionic acid and citric acid, were effective predictors of the characteristics of diazotrophic assemblages across desert habitats. Diazotrophic co-occurrence networks tended to be more complex and connected within different land types covered by the same plant species. The concentrations of multiple sugars and organic acids were coupled significantly with the distribution of keystone species, such as Azotobacter, Azospirillum, Bradyrhizobium, and Mesorhizobium, in the co-occurrence network. These findings provide new insights into the assembly mechanisms of root-associated diazotrophic communities across the desert ecosystems of the Tibetan Plateau.
英文关键词	Diazotrophic diversity Community assembly Co-occurrence network Sugars and organic acids
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000708381000002
WOS关键词	DIVERSITY ; NITROGEN ; RHIZOSPHERE ; PH
WOS类目	Biotechnology & Applied Microbiology
WOS研究方向	Biotechnology & Applied Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362491
作者单位	[Ding, Xiaowei; Liu, Kaihui; Chen, Ni; Wang, Guoliang; He, Shuai] Shaanxi Univ Sci & Technol, Sch Food & Biol Engn, Xian 710021, Peoples R China; [Yan, Qingyun; Liu, Xingyu] Sun Yat Sen Univ, Environm Microbi Res Ctr, Sch Environm Sci & Engn, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Guangzhou 510006, Peoples R China
推荐引用方式 GB/T 7714	Ding, Xiaowei,Liu, Kaihui,Yan, Qingyun,et al. Sugar and organic acid availability modulate soil diazotroph community assembly and species co-occurrence patterns on the Tibetan Plateau[J],2021.
APA	Ding, Xiaowei.,Liu, Kaihui.,Yan, Qingyun.,Liu, Xingyu.,Chen, Ni.,...&He, Shuai.(2021).Sugar and organic acid availability modulate soil diazotroph community assembly and species co-occurrence patterns on the Tibetan Plateau.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY.
MLA	Ding, Xiaowei,et al."Sugar and organic acid availability modulate soil diazotroph community assembly and species co-occurrence patterns on the Tibetan Plateau".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY (2021).