Arid
DOI10.1016/j.soilbio.2010.12.006
Shrubs influence arbuscular mycorrhizal fungi communities in a semi-arid environment
Martinez-Garcia, Laura B.; Armas, Cristina; de Dios Miranda, Juan; Padilla, Francisco M.; Pugnaire, Francisco I.
通讯作者Martinez-Garcia, Laura B.
来源期刊SOIL BIOLOGY & BIOCHEMISTRY
ISSN0038-0717
出版年2011
卷号43期号:3页码:682-689
英文摘要

Interactions between arbuscular mycorrhizal fungi (AMF) and plants are essential components of ecosystem functioning: however, they remain poorly known in dry ecosystems. We examined the relationship between seven shrub species and their associated AMF community in a semi-arid plant community in southern Spain. Soil characteristics and plant physiological status were measured and related to AMF community composition and genetic diversity by multivariate statistics. We found differences in AMF communities in soils under shrubs and in gaps among them, whereas no differences were detected among AMF communities colonizing roots. Soil nutrients content drove most of the spatial variations in the AMF community and genetic diversity. AMF communities were more heterogeneous in fertile islands with low nitrogen-to-phosphorus ratio and vice versa. AMF genetic diversity increased in soils limited by phosphorus and with high soil organic matter content, while AMF genetic diversity increased in roots growing in soil not limited by phosphorus. Overall, we could not find a clear link between plant performance and the associated AMF community. Our findings show that different shrub species generate islands of fertility which differ in nutrient content and, therefore, support different AMF communities, increasing AMF diversity at the landscape level. (C) 2010 Elsevier Ltd. All rights reserved.


英文关键词Arbuscular mycorrhizal fungi (AMF) distribution AMF genetic diversity Terminal restriction fragment length polymorphism (T-RFLP) Mediterranean shrub species Soil nutrients
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000287435300024
WOS关键词PLANT-SOIL FEEDBACK ; NITROGEN-FERTILIZATION ; MICROBIAL COMMUNITIES ; DIVERSITY ; DYNAMICS ; ROOTS ; COLONIZATION ; FACILITATION ; COMPETITION ; 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/2XILL650/170560
作者单位CSIC, Estn Expt Zonas Aridas, La Canada De San Urbana 04120, Almeria, Spain
推荐引用方式
GB/T 7714
Martinez-Garcia, Laura B.,Armas, Cristina,de Dios Miranda, Juan,et al. Shrubs influence arbuscular mycorrhizal fungi communities in a semi-arid environment[J],2011,43(3):682-689.
APA Martinez-Garcia, Laura B.,Armas, Cristina,de Dios Miranda, Juan,Padilla, Francisco M.,&Pugnaire, Francisco I..(2011).Shrubs influence arbuscular mycorrhizal fungi communities in a semi-arid environment.SOIL BIOLOGY & BIOCHEMISTRY,43(3),682-689.
MLA Martinez-Garcia, Laura B.,et al."Shrubs influence arbuscular mycorrhizal fungi communities in a semi-arid environment".SOIL BIOLOGY & BIOCHEMISTRY 43.3(2011):682-689.
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