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Mycorrhizal fungal diversity and community composition in a lithophytic and epiphytic orchid
Ist Teil von
Mycorrhiza, 2015-05, Vol.25 (4), p.289-296
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2015
Quelle
MEDLINE
Beschreibungen/Notizen
Some orchid species are present as epiphytes and lithophytes in the same habitat, but little is known about the differences of their mycorrhizal fungal communities. We used
Coelogyne viscosa
, which occurs both as an epiphyte and a lithophyte, as a study system to investigate orchid mycorrhizal fungal communities in lithophytes and epiphytes in Xishuangbanna National Nature Reserve (Yunnan Province, China). Twenty-three fungal operational taxonomic units (OTUs) from 18 sampling sites were identified. Results indicated that mycorrhizal fungal community composition was different between epi- and lithophytes. When we analyzed the
Tulasnellaceae
and
Sebacinales
communities separately, we found that the
Sebacinales
fungal communities were significantly different in the two growth habitats, but the
Tulasnellaceae
fungal communities were not. Our results provide evidence for distinct orchid mycorrhiza fungal communities depending on the growth habitat of the orchid. Consistent with some recent investigations of mycorrhizal fungus community composition, this study suggests that for one orchid, growth habitat affects mycorrhizal symbioses.