干旱区生态环境知识资源中心(Arid): A spatiotemporal framework reveals contrasting factors shape biocrust microbial and microfaunal communities in the Chihuahuan Desert

Arid

DOI	10.1016/j.geoderma.2021.115409
	A spatiotemporal framework reveals contrasting factors shape biocrust microbial and microfaunal communities in the Chihuahuan Desert
	Omari, Haneen; Pietrasiak, Nicole; Ferrenberg, Scott; Nishiguchi, Michele K.
通讯作者	Omari, H (corresponding author), New Mexico State Univ, Dept Biol, Las Cruces, NM 88011 USA.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2022
卷号	405
英文摘要	Biocrusts are soil-surface communities composed of autotrophic and heterotrophic microbiota that affect nutrient cycling, plant performance, soil hydrology and stability within drylands. Biocrust community composition is mostly thought to be driven by abiotic factors, but the structure of the bacteria, fungi, protist, and microfauna taxa are rarely documented simultaneously or over time. In this study, we examined the composition, abundance, and diversity of microbes (bacteria and fungi) and microfauna (protists and microscopic microfauna) in three types of biocrusts among two different vegetative habitats in the northern Chihuahuan Desert during three successive seasons. Microbial groups were identified by phospholipid fatty acid analyses (PLEA) and included actinobacteria, gram-positive bacteria, rhizobia, gram-negative bacteria, arbuscular mycorrhizal fungi, and saprophytic fungi. Microfauna were enumerated via microscopy and included nematodes, tardigrades, rotifers, amoebae, ciliates, and flagellates. We found that microbial communities were most affected by biocrust type, whereas microfaunal communities were more influenced by sampling season. Season was also associated with different indicator taxa. Additionally, microbial communities were related to biocrust chemical properties, which changed with season and surrounding vegetation while microfaunal communities were not. In cyanolichen-dominated crusts, but not others, the structure of microbial and microfaunal communities were strongly correlated. Our study highlights possible food web interactions and provides evidence that the co-occurring microbial and microfaunal taxa associated with biocrusts are temporally dynamic and structured by different drivers.
英文关键词	Biocrust Microbial community Season Vegetation Dryland
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000703712100019
WOS关键词	BIOLOGICAL SOIL CRUSTS ; COLORADO PLATEAU ; SUCCESSIONAL STAGES ; DIVERSITY ; PROTOZOA ; NITROGEN ; IMPACT ; ABUNDANCE ; SEDIMENT ; CARBON
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363391
作者单位	[Omari, Haneen; Ferrenberg, Scott; Nishiguchi, Michele K.] New Mexico State Univ, Dept Biol, Las Cruces, NM 88011 USA; [Pietrasiak, Nicole] New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88011 USA; [Nishiguchi, Michele K.] Univ Calif Merced, Dept Mol & Cell Biol, Merced, CA 95343 USA
推荐引用方式 GB/T 7714	Omari, Haneen,Pietrasiak, Nicole,Ferrenberg, Scott,et al. A spatiotemporal framework reveals contrasting factors shape biocrust microbial and microfaunal communities in the Chihuahuan Desert[J]. New Mexico State University,2022,405.
APA	Omari, Haneen,Pietrasiak, Nicole,Ferrenberg, Scott,&Nishiguchi, Michele K..(2022).A spatiotemporal framework reveals contrasting factors shape biocrust microbial and microfaunal communities in the Chihuahuan Desert.GEODERMA,405.
MLA	Omari, Haneen,et al."A spatiotemporal framework reveals contrasting factors shape biocrust microbial and microfaunal communities in the Chihuahuan Desert".GEODERMA 405(2022).