Enkianthus campanulatus (Ericaceae) is commonly associated with arbuscular mycorrhizal fungi.
Mycorrhiza
; 23(3): 199-208, 2013 Apr.
Article
em En
| MEDLINE
| ID: mdl-23053576
ABSTRACT
Enkianthus is the most basal extant genus in the phylogeny of ericaceous plants. Its members harbor arbuscular mycorrhiza (AM)-like hyphal structures in their roots but, as yet, no study has surveyed the AM fungal species component. Roots from six species of Enkianthus were collected from five distantly located sites in Japan. Intracellular hyphal coils were observed in the root cortical cells of all species. Fungal DNA sequences of the small subunit ribosomal RNA gene were obtained from 73 of 75 segments of Enkianthus campanulatus roots by PCR using either AML2 or NS31/AM1primer pairs. Results indicated that all E. campanulatus trees were extensively associated with Glomus spp. A phylogenetic analysis showed that 71 root segments harbored fungi belonging to Glomus group A. Among eight delineated clades, seven did not nest with any known AM fungal species. One clade was detected in all roots at all sites at relatively high frequencies, but the rest were detected sporadically at each site. The placement of sequences from distantly located sites into a single clade without known AM fungal species suggests the common association of E. campanulatus with particular AM fungal taxa.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ericaceae
/
Micorrizas
Tipo de estudo:
Risk_factors_studies
País/Região como assunto:
Asia
Idioma:
En
Revista:
Mycorrhiza
Assunto da revista:
BIOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Japão