干旱区生态环境知识资源中心(Arid): Effects of buffelgrass removal and nitrogen addition on soil microbial communities during an extreme drought in the Sonoran Desert

Arid

DOI	10.1111/rec.13570
	Effects of buffelgrass removal and nitrogen addition on soil microbial communities during an extreme drought in the Sonoran Desert
	Williams, Jared P.; Gornish, Elise S.; Barberan, Albert
通讯作者	Barberan, A (corresponding author), Univ Arizona, Dept Environm Sci, Tucson, AZ 85721 USA.
来源期刊	RESTORATION ECOLOGY
ISSN	1061-2971
EISSN	1526-100X
出版年	2022
英文摘要	Buffelgrass (Cenchrus ciliaris), an invasive perennial grass in arid regions of the United States, has drastically modified natural ecosystems. Understanding the aboveground-belowground links between buffelgrass invasion and soil microbial communities will be critical for developing a comprehensive understanding of arid ecosystems and for deploying successful control strategies. In a randomized block-field experiment located in Tucson, AZ, U.S.A., we investigated the effects of buffelgrass removal via hand pulling and nitrogen addition (and their interaction) on soil microbial communities during an extreme drought (summer 2020). We found that experimental treatments did not significantly impact bacterial and archaeal community diversity and composition, while plant removal affected fungal community diversity and composition. In addition, the removal treatment increased the proportion of putative chitinolytic bacteria (genus Lysobacter) and decreased the proportion of putative fungal endophytes (genus Darksidea). Buffelgrass manual removal appeared to favor fungal endophyte death around and inside of leftover intact roots, which may result in an increase of chitinolytic bacteria thriving on the degradation of fungal cell walls. Overall, our results suggest that hand removal-which is a common type of buffelgrass control-can alter soil fungal communities and the proportion of certain microbial functional groups. As these changes could subsequently affect native plants, more research is needed to develop a comprehensive understanding of the effect of buffelgrass control efforts on target plants as well as surrounding ecosystem dynamics.
英文关键词	bacteria Cenchrus ciliaris drought fungi nitrogen weeds
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000713404000001
WOS关键词	PENNISETUM-CILIARE ; INVASIVE PLANTS ; FUNGAL COMMUNITIES ; SPECIES RICHNESS ; RESTORATION ; MECHANISMS ; MANAGEMENT ; RESPONSES ; BACTERIAL ; LEGACIES
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367729
作者单位	[Williams, Jared P.; Barberan, Albert] Univ Arizona, Dept Environm Sci, Tucson, AZ 85721 USA; [Gornish, Elise S.] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Williams, Jared P.,Gornish, Elise S.,Barberan, Albert. Effects of buffelgrass removal and nitrogen addition on soil microbial communities during an extreme drought in the Sonoran Desert[J]. University of Arizona,2022.
APA	Williams, Jared P.,Gornish, Elise S.,&Barberan, Albert.(2022).Effects of buffelgrass removal and nitrogen addition on soil microbial communities during an extreme drought in the Sonoran Desert.RESTORATION ECOLOGY.
MLA	Williams, Jared P.,et al."Effects of buffelgrass removal and nitrogen addition on soil microbial communities during an extreme drought in the Sonoran Desert".RESTORATION ECOLOGY (2022).