Plant communities affect arbuscular mycorrhizal fungal diversity and community composition in grassland microcosms

• The diversity of arbuscular mycorrhizal (AM) fungi was investigated in an unfertilized limestone grassland soil supporting different synthesized vascular plant assemblages that had developed for 3 yr. • The experimental treatments comprised: bare soil; monocultures of the nonmycotrophic sedge Care...

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Vydané v:	The New phytologist Ročník 161; číslo 2; s. 503 - 515
Hlavní autori:	Johnson, D, Vandenkoornhuyse, P.J, Leake, J.R, Gilbert, L, Booth, R.E, Grime, J.P, Young, J.P.W, Read, D.J
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Oxford, UK Blackwell Science 01.02.2004 Blackwell Publishing Ltd Blackwell
Predmet:	Animal and plant ecology Animal, plant and microbial ecology arbuscular mycorrhiza (AM) Bioassay Biological and medical sciences Carex Carex flacca diversity Festuca ovina forbs Fundamental and applied biological sciences. Psychology Fungi grasses Grassland soils grasslands Microcosms mycorrhizal fungi phosphorus plant communities plant functional type Plant roots Plantago lanceolata Plants restriction fragment length polymorphism Seedlings shoot nitrogen shoot phosphorus Soil fungi soil properties Soil treatment Species diversity Synecology terminal restriction fragment length polymorphism (T‐RFLP) Terrestrial ecosystems vesicular arbuscular mycorrhizae Symbiosis Grassland arbuscular mycorrhiza (AM) Floristic composition Endomycorrhiza Restriction fragment length polymorphism plant functional type; diversity; shoot phosphorus shoot nitrogen Mycorrhiza Biodiversity Colonization terminal restriction fragment length polymorphism (T-RFLP) diversity shoot phosphorus plant functional type
ISSN:	0028-646X, 1469-8137, 1469-8137
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Shrnutí:	• The diversity of arbuscular mycorrhizal (AM) fungi was investigated in an unfertilized limestone grassland soil supporting different synthesized vascular plant assemblages that had developed for 3 yr. • The experimental treatments comprised: bare soil; monocultures of the nonmycotrophic sedge Carex flacca; monocultures of the mycotrophic grass Festuca ovina; and a species-rich mixture of four forbs, four grasses and four sedges. The diversity of AM fungi was analysed in roots of Plantago lanceolata bioassay seedlings using terminal-restriction fragment length polymorphism (T-RFLP). The extent of AM colonization, shoot biomass and nitrogen and phosphorus concentrations were also measured. • The AM diversity was affected significantly by the floristic composition of the microcosms and shoot phosphorus concentration was positively correlated with AM diversity. The diversity of AM fungi in P. lanceolata decreased in the order: bare soil > C. flacca > 12 species > F. ovina. • The unexpectedly high diversity in the bare soil and sedge monoculture likely reflects differences in the modes of colonization and sources of inoculum in these treatments compared with the assemblages containing established AM-compatible plants.
Bibliografia:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0028-646X 1469-8137 1469-8137
DOI:	10.1046/j.1469-8137.2003.00938.x