干旱区生态环境知识资源中心(Arid): Absence of Gigasporales and rarity of spores in a hot desert revealed by a multimethod approach

Arid

DOI	10.1007/s00572-024-01160-w
	Absence of Gigasporales and rarity of spores in a hot desert revealed by a multimethod approach
	Robin-Soriano, Alexandre; Maurice, Kenji; Boivin, Stephane; Bourceret, Amelia; Laurent-Webb, Liam; Youssef, Sami; Nespoulous, Jerome; Boussiere, Ines; Berder, Julie; Damasio, Coraline; Vincent, Bryan; Boukcim, Hassan; Ducousso, Marc; Gros-Balthazard, Muriel
通讯作者	Robin-Soriano, A
来源期刊	MYCORRHIZA
ISSN	0940-6360
EISSN	1432-1890
出版年	2024
卷号	34 期号:4 页码:251-270
英文摘要	Hot deserts impose extreme conditions on plants growing in arid soils. Deserts are expanding due to climate change, thereby increasing the vulnerability of ecosystems and the need to preserve them. Arbuscular mycorrhizal fungi (AMF) improve plant fitness by enhancing plant water/nutrient uptake and stress tolerance. However, few studies have focused on AMF diversity and community composition in deserts, and the soil and land use parameters affecting them. This study aimed to comprehensively describe AMF ecological features in a 5,000 km2 arid hyperalkaline region in AlUla, Saudi Arabia. We used a multimethod approach to analyse over 1,000 soil and 300 plant root samples of various species encompassing agricultural, old agricultural, urban and natural ecosystems. Our method involved metabarcoding using 18S and ITS2 markers, histological techniques for direct AMF colonization observation and soil spore extraction and observation. Our findings revealed a predominance of AMF taxa assigned to Glomeraceae, regardless of the local conditions, and an almost complete absence of Gigasporales taxa. Land use had little effect on the AMF richness, diversity and community composition, while soil texture, pH and substantial unexplained stochastic variance drove these compositions in AlUla soils. Mycorrhization was frequently observed in the studied plant species, even in usually non-mycorrhizal plant taxa (e.g. Amaranthaceae, Urticaceae). Date palms and Citrus trees, representing two major crops in the region, however, displayed a very low mycorrhizal frequency and intensity. AlUla soils had a very low concentration of spores, which were mostly small. This study generated new insight on AMF and specific behavioral features of these fungi in arid environments.
英文关键词	Arbuscular mycorrhizal fungi Desert Arid lands Saudi Arabia Metabarcoding Hyperalkaline soils
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001271471700001
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; PHOENIX-DACTYLIFERA L. ; DATE PALM ; DISTRIBUTION PATTERNS ; SEASONAL-VARIATION ; WATER-STRESS ; SOIL ; COMMUNITIES ; DROUGHT ; GROWTH
WOS类目	Plant Sciences ; Mycology
WOS研究方向	Plant Sciences ; Mycology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404945
推荐引用方式 GB/T 7714	Robin-Soriano, Alexandre,Maurice, Kenji,Boivin, Stephane,et al. Absence of Gigasporales and rarity of spores in a hot desert revealed by a multimethod approach[J],2024,34(4):251-270.
APA	Robin-Soriano, Alexandre.,Maurice, Kenji.,Boivin, Stephane.,Bourceret, Amelia.,Laurent-Webb, Liam.,...&Gros-Balthazard, Muriel.(2024).Absence of Gigasporales and rarity of spores in a hot desert revealed by a multimethod approach.MYCORRHIZA,34(4),251-270.
MLA	Robin-Soriano, Alexandre,et al."Absence of Gigasporales and rarity of spores in a hot desert revealed by a multimethod approach".MYCORRHIZA 34.4(2024):251-270.