干旱区生态环境知识资源中心(Arid): The autotrophic community across developmental stages of biocrusts in the Gurbantunggut Desert

Arid

DOI	10.1016/j.geoderma.2021.114927
	The autotrophic community across developmental stages of biocrusts in the Gurbantunggut Desert
	Zhao, Kang; Zhang, Bingchang; Li, Jianan; Li, Bin; Wu, Zhifang
通讯作者	Zhang, BC (corresponding author), Shanxi Normal Univ, Geog Sci Coll, Linfen, Shanxi, Peoples R China.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	388
英文摘要	Autotmphs, such as cyanobacteria, algae, and prokaryotic non-cyanobacterial autotmphs, play fundamental roles in biocrust development by adhering to soil particles and fixing CO2. The variation in autotrophic community structure, in particular that of prokaryotic non-cyanobacterial autotrophs, and the factors driving this variation during biocrust succession have not been revealed. In this study, we investigated the autotrophic communities in bare sand and three biocrust successional stages in the Gurbantunggut Desert by assessing the cbbL gene, which encodes the form I ribulose1,5-bisphosphate carboxylase/oxygenase (RuBisCO) large subunit. The cbbL gene profiles demonstrated that the abundance of cyanobacteria and algae (form IAB, 10(5)-10(7) copies g(-1)- soil) and prokaryotic non-cyanobacterial autotrophs (form IC, similar to 10(7) copies g(-1)- soil) changed significantly as succession progressed. Stepwise multiple regression showed that soil water, organic carbon, total phosphorous, available potassium content and pH explained 95.7% of the variation in cyanobacterial and algal (form IAB) abundance. Soil water content explained 60.1% of the variation in prokaryotic non-cyanobacterial autotroph (form IC) abundance. Variation partitioning analysis showed that the variation in form IC community structure was related to soil nutrients (C, N, and P), ion content (Mg7+, Na+ and Ca7+) and physical soil properties (86.1% explained). The variation in form IAB community structure could be predictable by total potassium, total organic carbon and Na+ and Mg2+ content (37.1% explained). Our results showed significant shifts in both autotrophic abundance and community structure, and highlighted the combined effects of soil factors on autotrophic community variation during biocrust succession.
英文关键词	Biological soil crusts Biocrust succession Microbial autotrophs cbbL genes
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000621894500007
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	University of London
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350373
作者单位	[Zhao, Kang] Shanxi Normal Univ, Coll Life Sci, Linfen, Shanxi, Peoples R China; [Zhang, Bingchang; Li, Bin; Wu, Zhifang] Shanxi Normal Univ, Geog Sci Coll, Linfen, Shanxi, Peoples R China; [Li, Jianan] UCL, Fac Engn, Dept Civil Environm & Geomat Engn, London WC1E 6BT, England
推荐引用方式 GB/T 7714	Zhao, Kang,Zhang, Bingchang,Li, Jianan,et al. The autotrophic community across developmental stages of biocrusts in the Gurbantunggut Desert[J]. University of London,2021,388.
APA	Zhao, Kang,Zhang, Bingchang,Li, Jianan,Li, Bin,&Wu, Zhifang.(2021).The autotrophic community across developmental stages of biocrusts in the Gurbantunggut Desert.GEODERMA,388.
MLA	Zhao, Kang,et al."The autotrophic community across developmental stages of biocrusts in the Gurbantunggut Desert".GEODERMA 388(2021).