NDLI: Soil community composition and the regulation of grazed temperate grassland

Content Provider	Springer Nature Link
Author	Frank, Douglas A. Gehring, Catherine A. Machut, Leonard Phillips, Mark
Copyright Year	2003
Abstract	The effect of the community composition of soil microbes on ecosystem processes has received relatively little attention. Here we examined the variation in soil microbial composition in a Yellowstone National Park grassland and the effect of that variation on the growth, in a greenhouse, of the dominant grass in the community. Plants and their rhizospheric soil were collected from paired, Poa pratensis-dominated grassland plots located inside and outside a 40-year-old exclosure. P. pratensis aboveground, belowground, and whole plant growth were greater in pots with soil communities from grazed grassland compared to fenced grassland, indicating (1) soil microbial communities differed, and (2) this difference influenced the growth of the plant that dominated both grasslands. Treating pots with fungicide (benomyl) suppressed the soil community influence, indicating that different fungal communities caused the soil microbe effect. In addition, two lines of evidence are consistent with the hypothesis that arbuscular mycorrhizal fungal (AMF) species composition affected P. pratensis: (1) a divergence in AMF spore communities in the two field soils, and (2) little evidence of pathogenic fungi. These findings emphasize the need to examine the role that the composition of the soil microbial community plays in controlling terrestrial ecosystems.
Starting Page	603
Ending Page	609
Page Count	7
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	137
Issue Number	4
e-ISSN	14321939
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-09-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Grassland Herbivory Mycorrhizae Soil microbial community Yellowstone National Park.
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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