Community-level consequences of mycorrhizae depend on phosphorus availability

In grasslands, arbuscular mycorrhizal fungi (AMF) mediate plant diversity; whether AMF increase or decrease diversity depends on the relative mycotrophy in dominant vs. subordinate plants. In this study we investigated whether soil nutrient levels also influence the ability of AMF to mediate plant s...

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Veröffentlicht in:Ecology (Durham) 2009-09, Vol.90 (9), p.2567-2576
Hauptverfasser: Collins, Cathy D, Foster, Bryan L
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Foster, Bryan L
description In grasslands, arbuscular mycorrhizal fungi (AMF) mediate plant diversity; whether AMF increase or decrease diversity depends on the relative mycotrophy in dominant vs. subordinate plants. In this study we investigated whether soil nutrient levels also influence the ability of AMF to mediate plant species coexistence. First, we developed a conceptual model that predicts the influence of AMF on diversity along a soil nutrient gradient for plant communities dominated by mycotrophic and non-mycotrophic species. To test these predictions, we manipulated phosphorus to create a soil nutrient gradient for mesocosm communities composed of native prairie grasses and then compared community properties for mesocosms with and without AMF. We found that, where P was limiting, AMF increased plant diversity and productivity, and also altered community structure; however, at high P, AMF had little influence on aboveground communities. Compositional differences among treatments were due largely to a trade-off in the relative abundance of C₃ vs. C₄ species. Our study emphasizes how environmental constraints on mutualisms may govern community- and ecosystem-level properties.
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Psychology</subject><subject>Fungi</subject><subject>General aspects</subject><subject>grasses</subject><subject>Grasslands</subject><subject>Kansas</subject><subject>mesocosm</subject><subject>mycorrhizae</subject><subject>Mycorrhizae - drug effects</subject><subject>Mycorrhizae - physiology</subject><subject>mycorrhizal fungi</subject><subject>nutrient availability</subject><subject>nutrient gradient</subject><subject>Nutrient nutrient interactions</subject><subject>Nutrients</subject><subject>P limitation</subject><subject>perennial native grasses</subject><subject>Phosphorus</subject><subject>Phosphorus - metabolism</subject><subject>Phosphorus - pharmacology</subject><subject>phosphorus limitation</subject><subject>Plant communities</subject><subject>plant diversity</subject><subject>Plant ecology</subject><subject>Plant Roots - microbiology</subject><subject>Plants</subject><subject>plant–fungal symbioses</subject><subject>Poaceae - microbiology</subject><subject>Poaceae - physiology</subject><subject>prairie soils</subject><subject>Soil ecology</subject><subject>Soil nutrients</subject><subject>Soils</subject><subject>Species diversity</subject><subject>Synecology</subject><subject>tallgrass prairie</subject><subject>USA</subject><subject>vesicular arbuscular mycorrhizae</subject><issn>0012-9658</issn><issn>1939-9170</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUuLFDEQgIMo7rh68AeojaDgobVSeR9lWB-w4sH14Cmk02m3h-7OmEyvjL_eND24IIiBEIp89VVSRchjCq-pNvAGdE2FLMEdsqGGmdpQBXfJBoBibaTQZ-RBzjsoi3J9n5xRo6ShjG_Ip20cx3nqD8d6CDdhqHyccvgxh8mHXMWuGo8-pnTd_3KhasM-TG0Vp2p_HXPZac6Vu3H94Jp-KI6H5F7nhhwenc5zcvXu4mr7ob78_P7j9u1l7bnRqu7QQ8Mla4A1GhtqJDYMKVNSKWc6YLJrOUfTcKTBt4AtCMG90Q4FM8jOyctVu0-xPDUf7NhnH4bBTSHO2UolJUNk_wURNCpEXcDnf4G7OKep_MEiNQAcYIFerZBPMecUOrtP_ejS0VKwyyAsaLsMwtLCPj0J52YM7S156nwBXpwAl70buuQm3-c_HFItjOaLSKzcz34Ix39XtBfbbwhgDBgUUpW8J2veLh9iuvUKYVDppYfP1vvOReu-p1L76xcEyoBKzbXW7DdUFLAm</recordid><startdate>200909</startdate><enddate>200909</enddate><creator>Collins, Cathy D</creator><creator>Foster, Bryan L</creator><general>Ecological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>M7N</scope><scope>7X8</scope></search><sort><creationdate>200909</creationdate><title>Community-level consequences of mycorrhizae depend on phosphorus availability</title><author>Collins, Cathy D ; Foster, Bryan L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4987-f2c0b463b03b82b1962b32137677a9f036fd4429b421ecd02d0554c98a253923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>AMF</topic><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>arbuscular mycorrhizal fungi</topic><topic>Biodiversity</topic><topic>Biological and medical sciences</topic><topic>C3 plants</topic><topic>C3 vs. C4 species</topic><topic>C4 plants</topic><topic>Communities</topic><topic>community structure</topic><topic>Ecology</topic><topic>Ecosystem</topic><topic>Flowers &amp; plants</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Fungi</topic><topic>General aspects</topic><topic>grasses</topic><topic>Grasslands</topic><topic>Kansas</topic><topic>mesocosm</topic><topic>mycorrhizae</topic><topic>Mycorrhizae - drug effects</topic><topic>Mycorrhizae - physiology</topic><topic>mycorrhizal fungi</topic><topic>nutrient availability</topic><topic>nutrient gradient</topic><topic>Nutrient nutrient interactions</topic><topic>Nutrients</topic><topic>P limitation</topic><topic>perennial native grasses</topic><topic>Phosphorus</topic><topic>Phosphorus - metabolism</topic><topic>Phosphorus - pharmacology</topic><topic>phosphorus limitation</topic><topic>Plant communities</topic><topic>plant diversity</topic><topic>Plant ecology</topic><topic>Plant Roots - microbiology</topic><topic>Plants</topic><topic>plant–fungal symbioses</topic><topic>Poaceae - microbiology</topic><topic>Poaceae - physiology</topic><topic>prairie soils</topic><topic>Soil ecology</topic><topic>Soil nutrients</topic><topic>Soils</topic><topic>Species diversity</topic><topic>Synecology</topic><topic>tallgrass prairie</topic><topic>USA</topic><topic>vesicular arbuscular mycorrhizae</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Collins, Cathy D</creatorcontrib><creatorcontrib>Foster, Bryan L</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>MEDLINE - Academic</collection><jtitle>Ecology (Durham)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Collins, Cathy D</au><au>Foster, Bryan L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Community-level consequences of mycorrhizae depend on phosphorus availability</atitle><jtitle>Ecology (Durham)</jtitle><addtitle>Ecology</addtitle><date>2009-09</date><risdate>2009</risdate><volume>90</volume><issue>9</issue><spage>2567</spage><epage>2576</epage><pages>2567-2576</pages><issn>0012-9658</issn><eissn>1939-9170</eissn><coden>ECGYAQ</coden><abstract>In grasslands, arbuscular mycorrhizal fungi (AMF) mediate plant diversity; whether AMF increase or decrease diversity depends on the relative mycotrophy in dominant vs. subordinate plants. In this study we investigated whether soil nutrient levels also influence the ability of AMF to mediate plant species coexistence. First, we developed a conceptual model that predicts the influence of AMF on diversity along a soil nutrient gradient for plant communities dominated by mycotrophic and non-mycotrophic species. To test these predictions, we manipulated phosphorus to create a soil nutrient gradient for mesocosm communities composed of native prairie grasses and then compared community properties for mesocosms with and without AMF. We found that, where P was limiting, AMF increased plant diversity and productivity, and also altered community structure; however, at high P, AMF had little influence on aboveground communities. Compositional differences among treatments were due largely to a trade-off in the relative abundance of C₃ vs. C₄ species. Our study emphasizes how environmental constraints on mutualisms may govern community- and ecosystem-level properties.</abstract><cop>Washington, DC</cop><pub>Ecological Society of America</pub><pmid>19769134</pmid><doi>10.1890/08-1560.1</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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subjects AMF
Animal and plant ecology
Animal, plant and microbial ecology
arbuscular mycorrhizal fungi
Biodiversity
Biological and medical sciences
C3 plants
C3 vs. C4 species
C4 plants
Communities
community structure
Ecology
Ecosystem
Flowers & plants
Fundamental and applied biological sciences. Psychology
Fungi
General aspects
grasses
Grasslands
Kansas
mesocosm
mycorrhizae
Mycorrhizae - drug effects
Mycorrhizae - physiology
mycorrhizal fungi
nutrient availability
nutrient gradient
Nutrient nutrient interactions
Nutrients
P limitation
perennial native grasses
Phosphorus
Phosphorus - metabolism
Phosphorus - pharmacology
phosphorus limitation
Plant communities
plant diversity
Plant ecology
Plant Roots - microbiology
Plants
plant–fungal symbioses
Poaceae - microbiology
Poaceae - physiology
prairie soils
Soil ecology
Soil nutrients
Soils
Species diversity
Synecology
tallgrass prairie
USA
vesicular arbuscular mycorrhizae
title Community-level consequences of mycorrhizae depend on phosphorus availability
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