Document Detail


Seasonal dynamics of arbuscular mycorrhizal fungal communities in roots in a seminatural grassland.
MedLine Citation:
PMID:  17630308     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Symbiotic arbuscular mycorrhizal fungi (AMF) have been shown to influence both the diversity and productivity of grassland plant communities. These effects have been postulated to depend on the differential effects of individual mycorrhizal taxa on different plant species; however, so far there are few detailed studies of the dynamics of AMF colonization of different plant species. In this study, we characterized the communities of AMF colonizing the roots of two plant species, Prunella vulgaris and Antennaria dioica, in a Swedish seminatural grassland at different times of the year. The AMF small subunit rRNA genes were subjected to PCR, cloning, sequencing, and phylogenetic analysis. Nineteen discrete sequence types belonging to Glomus groups A and B and to the genus Acaulospora were distinguished. No significant seasonal changes in the species compositions of the AMF communities as a whole were observed. However, the two plant species hosted significantly different AMF communities. P. vulgaris hosted a rich AMF community throughout the entire growing season. The presence of AMF in A. dioica decreased dramatically in autumn, while an increased presence of Ascomycetes species was detected.
Authors:
Juan C Santos-González; Roger D Finlay; Anders Tehler
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-07-13
Journal Detail:
Title:  Applied and environmental microbiology     Volume:  73     ISSN:  0099-2240     ISO Abbreviation:  Appl. Environ. Microbiol.     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-08-29     Completed Date:  2007-10-23     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7605801     Medline TA:  Appl Environ Microbiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5613-23     Citation Subset:  IM    
Affiliation:
Department of Cryptogamic Botany, Swedish Museum of Natural History, P.O. Box 50007, SE-104 05 Stockholm, Sweden. juan.santos@nrm.se
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MeSH Terms
Descriptor/Qualifier:
Asteraceae / microbiology*
DNA, Fungal / analysis,  isolation & purification
Ecosystem
Fungi / classification,  growth & development*
Molecular Sequence Data
Mycorrhizae*
Phylogeny
Plant Roots / microbiology*
Prunella / microbiology*
Seasons*
Sequence Analysis, DNA
Chemical
Reg. No./Substance:
0/DNA, Fungal
Comments/Corrections

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