干旱区生态环境知识资源中心(Arid): Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization

Arid

DOI	10.1007/s11104-019-04306-4
	Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization
	Havrilla, Caroline; Leslie, Alexander D.; Di Biase, Jacob L.; Barger, Nichole N.
通讯作者	Havrilla, Caroline
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	446 期号:1-2 页码:331-342
英文摘要	Aims Plant-soil interactions are important drivers of plant productivity and community structure. Biocrusts - soil surface-dwelling biotic communities comprised of cyanobacteria, fungi, bryophytes, and/or lichens - are widespread in drylands globally. Biocrusts are described as mantles of fertility and have been shown to have facilitative, but species-specific effects on plant productivity. Yet, patterns and mechanisms underlying biocrust facilitation of plant productivity remain unclear. Methods Using mesocosms with bare soil versus biocrust cover we investigated the effects of biocrusts on plant biomass allocation, leaf chemistry and colonization by root-associated fungi. Results Plant responses to biocrust presence were species-specific. Overall, biocrusts were associated with increased plant biomass and/or leaf N concentrations in Elymus elymoides, Bouteloua gracilis and Zea mays. However, plants grown in biocrusts had lower root-associated fungal colonization compared to bare soils. Conclusions Biocrusts were associated with increased plant biomass and leaf N. Yet, plant growth responses to biocrusts were not correlated with differences in root-associated fungal colonization between soil mesocosm types. Understanding species-specificity in biocrust facilitation of plant growth may have important implications for understanding plant community structure in dryland ecosystems.
英文关键词	Biological soil crust Facilitation Root-associated fungi Plant growth Plant-soil interactions
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000511594900020
WOS关键词	BIOLOGICAL SOIL CRUSTS ; PULSE DYNAMICS ; VASCULAR PLANT ; DESERT ; NITROGEN ; DIVERSITY ; RESPONSES ; GROWTH ; ECOSYSTEMS ; COMMUNITY
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315323
作者单位	Univ Colorado, Dept Ecol & Evolutionary Biol, Ramaley N122,CB 334, Boulder, CO 80309 USA
推荐引用方式 GB/T 7714	Havrilla, Caroline,Leslie, Alexander D.,Di Biase, Jacob L.,et al. Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization[J],2020,446(1-2):331-342.
APA	Havrilla, Caroline,Leslie, Alexander D.,Di Biase, Jacob L.,&Barger, Nichole N..(2020).Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization.PLANT AND SOIL,446(1-2),331-342.
MLA	Havrilla, Caroline,et al."Biocrusts are associated with increased plant biomass and nutrition at seedling stage independently of root-associated fungal colonization".PLANT AND SOIL 446.1-2(2020):331-342.