干旱区生态环境知识资源中心(Arid): Weathering and soil formation in hot, dry environments mediated by plant-microbe interactions

Arid

DOI	10.1007/s00374-020-01456-x
	Weathering and soil formation in hot, dry environments mediated by plant-microbe interactions
	Lopez, Blanca R.1,2; Bacilio, Macario 1
通讯作者	Lopez, Blanca R.
来源期刊	BIOLOGY AND FERTILITY OF SOILS
ISSN	0178-2762
EISSN	1432-0789
出版年	2020
卷号	56 期号:4 页码:447-459
英文摘要	Bioweathering in arid lands is a complex set of processes comprising a wide variety of organisms, all contributing to soil formation. Weathering starts with outcrop fragmentation by physical forces, later thermal stress and salts produce propagation of cracks that allow colonization by lithobiontic communities. Growth and development of primary colonizers produce pools of C and N available for further establishment of non-vascular plants when moisture is available. Furthermore, plants capable of living in crevices establish interactions with microbial communities and together optimize rock resources (organic or inorganic), enhance nutrient cycling, and accelerate soil development. Cacti and succulents are frequent rock colonizers in hot deserts. These plants exhibit numerous adaptations that enable them to survive in deserts including CAM biochemistry, physiological adaptations, and interactions with their associated microbiome. The associated microbiomes include plant growth-promoting microorganisms that increase essential nutrient supply (N and P) to the plants. We propose a conceptual model of weathering where microbial associates induce higher root exudation of organic acids in succulents. This model has to be experimentally tested; however, it involves several challenges, such as: (a) the difficulty of collecting exudates from the field or emulating experimental conditions similar to nature, and (b) selecting appropriate temporal scales to detect measurable changes since most cacti exhibit remarkably slow growth rates. Therefore, innovative approaches are in order.
英文关键词	Plant colonization of rocks Bioweathering for pedogenesis Cacti root exudates Plant growth-promoting microorganisms of arid lands Lithobionts of arid lands
类型	Article
语种	英语
国家	Mexico ; USA
收录类别	SCI-E
WOS记录号	WOS:000523382900001
WOS关键词	MAMMILLARIA-FRAILEANA ; ENDOPHYTIC BACTERIA ; PRIMARY COLONIZATION ; BAJA-CALIFORNIA ; DESERT PLANTS ; ROCK ; RHIZOSPHERE ; LIFE ; CACTUS ; GROWTH
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314189
作者单位	1.Northwestern Ctr Biol Res CIBNOR, BCS, Environm Microbiol Grp, Av IPN 195, La Paz 23096, Bcs, Mexico; 2.Bashan Inst Sci, 1730 Post Oak Court, Auburn, AL 36830 USA
推荐引用方式 GB/T 7714	Lopez, Blanca R.,Bacilio, Macario. Weathering and soil formation in hot, dry environments mediated by plant-microbe interactions[J],2020,56(4):447-459.
APA	Lopez, Blanca R.,&Bacilio, Macario.(2020).Weathering and soil formation in hot, dry environments mediated by plant-microbe interactions.BIOLOGY AND FERTILITY OF SOILS,56(4),447-459.
MLA	Lopez, Blanca R.,et al."Weathering and soil formation in hot, dry environments mediated by plant-microbe interactions".BIOLOGY AND FERTILITY OF SOILS 56.4(2020):447-459.