气候变化领域集成服务门户(CCPortal): Temperature thresholds drive the biogeographic pattern of root endophytic fungal diversity in the Qinghai-Tibet Plateau

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DOI	10.1016/j.scitotenv.2023.164270
	Temperature thresholds drive the biogeographic pattern of root endophytic fungal diversity in the Qinghai-Tibet Plateau
	Wang, Bo; Chen, Chen; Xiao, Yuanming; Chen, Kaiyang; Wang, Juan; Zhou, Guoying
发表日期	2023
ISSN	0048-9697
EISSN	1879-1026
卷号	889
英文摘要	Studying the diversity and distribution of host-associated fungi along the temperature gradient can help us detect the potential impact of global warming on host-microbe interactions. By investigating 55 samples along the temperature gradient, our results demonstrated that temperature thresholds controlled the biogeographic pattern of fungal diversity in the root endosphere. When the mean annual temperature crossed similar to 1.40 degrees C, or the mean temperature of the coldest quarter was over similar to-8.26 degrees C, the root endophytic fungal OTU richness abruptly decreased. Shared OTU richness between the root endosphere and rhizosphere soil showed similar temperature thresholds. However, the OTU richness of the fungi in the rhizosphere soil had a nonsignificant positive linear relationship with temperature. The asynchrony of alpha diversity in the rhizosphere soil and root endosphere in response to increasing temperature indicated that temperature might regulate the microbial colonization process from the rhizoplane to interior tissue. When the temperature crosses the threshold, the rapid decrease in OTU richness from soil entry to root tissue colonization may lead to a rapid decrease in root OTU richness. We further found that root endophytic fungal OTU richness was more sensitive to temperature increases under drought than non-drought conditions. We also found similar temperature thresholds influencing the root endophytic fungal beta diversity. When the temperature difference between two sampling points crossed an similar to 2.2 degrees C temperature threshold, species replacement sharply decreased, and the species richness difference sharply increased. This investigation highlights that temperature thresholds are very important in shaping variation in the diversity of root endophytic fungi, especially in alpine ecosystems. Furthermore, it provides a preliminary framework for studying host-microbe interactions under global warming.
关键词	Temperature thresholds Biogeographic pattern Endophytic fungi Microbial diversity
英文关键词	BETA-DIVERSITY; RESOURCE AVAILABILITY; SPECIES RICHNESS; COMMUNITIES; SOIL; RHIZOSPHERE; CLIMATE; MICROBIOME; MECHANISMS; DYNAMICS
WOS研究方向	Environmental Sciences
WOS记录号	WOS:001049005700001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283462
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Qinghai University
推荐引用方式 GB/T 7714	Wang, Bo,Chen, Chen,Xiao, Yuanming,et al. Temperature thresholds drive the biogeographic pattern of root endophytic fungal diversity in the Qinghai-Tibet Plateau[J],2023,889.
APA	Wang, Bo,Chen, Chen,Xiao, Yuanming,Chen, Kaiyang,Wang, Juan,&Zhou, Guoying.(2023).Temperature thresholds drive the biogeographic pattern of root endophytic fungal diversity in the Qinghai-Tibet Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,889.
MLA	Wang, Bo,et al."Temperature thresholds drive the biogeographic pattern of root endophytic fungal diversity in the Qinghai-Tibet Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 889(2023).