干旱区生态环境知识资源中心(Arid): Increasing aridity shapes beta diversity and the network dynamics of the belowground fungal microbiome associated with Opuntia ficus-indica

Arid

DOI	10.1016/j.scitotenv.2021.145008
	Increasing aridity shapes beta diversity and the network dynamics of the belowground fungal microbiome associated with Opuntia ficus-indica
	Gargouri, Mahmoud; Karray, Fatma; Chebaane, Asma; Mhiri, Najla; Pamela Partida-Martinez, Laila; Sayadi, Sami; Mliki, Ahmed
通讯作者	Gargouri, M (corresponding author), Ctr Biotechnol Borj Cedria, Lab Plant Mol Physiol, PB 901, Hammam Lif 2050, Tunisia. ; Karray, F (corresponding author), Ctr Biotechnol Sfax, Lab Environm Bioproc, BP 1177, Sfax 3018, Tunisia.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	773
英文摘要	Aims: The effects of aridity on soil and water-use efficient (WUE) crop species are relatively well known. However, the understanding of its impacts on the dynamics of below-ground microorganisms associated with plant roots is less well understood. Methods: To investigate the influence of increasing aridity on the dynamics of the fungal communities, samples from the root endosphere and rhizosphere associated with the prickly pear cactus trees (Opuntia fiats-indica) growing along the aridity gradient were collected and the internal transcribed spacer (ITS) were sequenced. The diversity and network analyses of fungal taxa were determined along with standard measurements of soil parameters. Results: We found that (i) the fungal community exhibited similar alpha diversity and shared a set of core taxa within the rhizosphere and endosphere, but there was significant beta diversity differences; (ii) the relative abundance of major phyla was higher in the rhizosphere than in the endosphere; (iii) arbuscular endomycorrhizal colonization was highest in the humid climate and decreased under lower-arid, and was negatively correlated with increased concentration of Cat in the soil; (iv) increased aridity correlated with increased connectivity of the soil microbial-root fungal networks in the arid soils, producing a highly cohesive network in the upper-arid area; and (v) distinct fungal hubs sculpt the fungal microbiome network structure in the rhizosphere and endosphere within each bioclimatic zone. Conclusions: Our findings highlight the importance of gradient analysis-based correlation network as a powerful approach to understand changes in the diversity, the dynamics, and the structure of fungal communities associated with the rhizosphere-endosphere interaction and led to the identification of microbes at each bioclimatic zone that are potentially involved in promoting the survival, protection, and growth of Opuntia trees. The variability of fungal hubs composition depending on plant compartment and bioclimatic zone will give key implications for the application of rhizospheric fungi and enclophytes as microbial inoculants in agriculture, as well as in the conservation and restoration of cacti plants in arid and semi-arid lands against the backdrop of climate change. Overall, this study will enhance our understanding of the microbiomes' dynamic of CAM plants in nature. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Aridity gradient Soil-rhizosphere Root-endosphere Metabarcoding Fungal network hubs Opuntia ficus-indica
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635207100022
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; ENDOPHYTIC FUNGI ; DESERT ; COMMUNITIES ; PLANTS ; CACTI ; REHABILITATION ; IDENTIFICATION ; CACTACEAE ; SEARCH
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351646
作者单位	[Gargouri, Mahmoud; Chebaane, Asma; Mliki, Ahmed] Ctr Biotechnol Borj Cedria, Lab Plant Mol Physiol, PB 901, Hammam Lif 2050, Tunisia; [Karray, Fatma; Mhiri, Najla] Ctr Biotechnol Sfax, Lab Environm Bioproc, BP 1177, Sfax 3018, Tunisia; [Pamela Partida-Martinez, Laila] Ctr Invest & Estudios Avanzados CINVESTAV, Dept Ingn Genet, Lab Microbial Interact, Irapuato 36824, Mexico; [Sayadi, Sami] Qatar Univ, Coll Arts & Sci, Ctr Sustainable Dev, Doha 2713, Qatar
推荐引用方式 GB/T 7714	Gargouri, Mahmoud,Karray, Fatma,Chebaane, Asma,et al. Increasing aridity shapes beta diversity and the network dynamics of the belowground fungal microbiome associated with Opuntia ficus-indica[J],2021,773.
APA	Gargouri, Mahmoud.,Karray, Fatma.,Chebaane, Asma.,Mhiri, Najla.,Pamela Partida-Martinez, Laila.,...&Mliki, Ahmed.(2021).Increasing aridity shapes beta diversity and the network dynamics of the belowground fungal microbiome associated with Opuntia ficus-indica.SCIENCE OF THE TOTAL ENVIRONMENT,773.
MLA	Gargouri, Mahmoud,et al."Increasing aridity shapes beta diversity and the network dynamics of the belowground fungal microbiome associated with Opuntia ficus-indica".SCIENCE OF THE TOTAL ENVIRONMENT 773(2021).