Colonisation and molecular diversity of arbuscular mycorrhizal fungi in the aquatic plants Littorella uniflora and Lobelia dortmanna in southern Sweden.
Mycol Res
; 108(Pt 6): 616-25, 2004 Jun.
Article
en En
| MEDLINE
| ID: mdl-15323243
ABSTRACT
The colonisation intensity and composition of the mycorrhizal community in the aquatic plants Lobelia dortmanna and Littorella uniflora were studied. The mycorrhizal fungi were characterised by fungal specific nested PCR and sequencing using the 5'-end of the LSU rDNA as target. For this, primers for the clade of Acaulospora, the clade including Glomus mosseae and G. intraradices and the clade containing G. etunicatum and G. claroideum were used. The nested PCR products were screened for different sequence types using single stranded conformation polymorphism (SSCP) and representatives for each type were sequenced. A phylogenetic analysis of the sequences showed two phylotypes of Acaulospora, one phylotype within the clade of G. etunicatum/G. claroideum and five within the G. mosseae/ G. intraradices clade. The colonisation intensity was comparable to that seen in typical grassland vegetation. The neutral lipid fatty acid 16 1omega5 was seen to be indicative of mycorrhizal colonisation with concentrations up to 35 nmol mg(-1) root DW, which indicates that the fungi are active.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
ARN Ribosómico
/
Raíces de Plantas
/
Magnoliopsida
/
Hongos
País/Región como asunto:
Europa
Idioma:
En
Revista:
Mycol Res
Asunto de la revista:
MICROBIOLOGIA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Dinamarca