Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi

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	Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi
	Liu, YJ; Mao, L; Li, JY; Shi, GX; Jiang, SJ; Ma, XJ; An, LZ; Du, GZ; Feng, HY; Feng, HY (reprint author), Lanzhou Univ, Sch Life Sci, MOE Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Peoples R China.
	2015
发表期刊	PLANT AND SOIL
卷号	386 页码:341-355
摘要	Understanding the role of resource availability in structuring biotic communities is of importance in community ecology. This study investigates how light and soil nutrient availability drive assemblages of both plants and their root-associated arbuscular mycorrhizal fungi (AMF). We conducted a 4-year light [full light or shade] and soil fertility [unfertilized or fertilized with (NH4)(2)HPO4] interactive manipulations in an alpine meadow ecosystem. Species and phylogenetic compositions of plant and AMF communities were simultaneously measured, and the primary ecological processes structuring both communities were inferred from the community phylogenetic analysis. Reducing light and/or increasing soil fertility significantly reduced species richness and changed community compositions of both plant and AMF. Plant community phylogenetic structure shifted from random in untreated control to overdispersion in other treatments, whereas AMF communities were phylogenetically clustered and random in unfertilized and fertilized plots, respectively. These results suggest that plant communities in treated plots were mainly determined by competitive exclusion, and that AMF communities in unfertilized and fertilized plots were determined by environmental filtering and random process, respectively. We observed strong effects of light and soil nutrient availability on both plant and AMF communities, and our findings highlight that the primary ecological processes that drive plant and AMF assemblages should be highly dependent on the level of resource availability.; Understanding the role of resource availability in structuring biotic communities is of importance in community ecology. This study investigates how light and soil nutrient availability drive assemblages of both plants and their root-associated arbuscular mycorrhizal fungi (AMF). We conducted a 4-year light [full light or shade] and soil fertility [unfertilized or fertilized with (NH4)(2)HPO4] interactive manipulations in an alpine meadow ecosystem. Species and phylogenetic compositions of plant and AMF communities were simultaneously measured, and the primary ecological processes structuring both communities were inferred from the community phylogenetic analysis. Reducing light and/or increasing soil fertility significantly reduced species richness and changed community compositions of both plant and AMF. Plant community phylogenetic structure shifted from random in untreated control to overdispersion in other treatments, whereas AMF communities were phylogenetically clustered and random in unfertilized and fertilized plots, respectively. These results suggest that plant communities in treated plots were mainly determined by competitive exclusion, and that AMF communities in unfertilized and fertilized plots were determined by environmental filtering and random process, respectively. We observed strong effects of light and soil nutrient availability on both plant and AMF communities, and our findings highlight that the primary ecological processes that drive plant and AMF assemblages should be highly dependent on the level of resource availability.
关键词	Soil Fungi Phylogenetic Structure Community Assembly Light Intensity Soil Fertility Alpine Meadow
收录类别	SCI
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/5483
专题	中国科学院西北高原生物研究所
通讯作者	Feng, HY (reprint author), Lanzhou Univ, Sch Life Sci, MOE Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Liu, YJ,Mao, L,Li, JY,et al. Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi[J]. PLANT AND SOIL,2015,386:341-355.
APA	Liu, YJ.,Mao, L.,Li, JY.,Shi, GX.,Jiang, SJ.,...&Feng, HY .(2015).Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi.PLANT AND SOIL,386,341-355.
MLA	Liu, YJ,et al."Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi".PLANT AND SOIL 386(2015):341-355.

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