Two sebacinoid ectomycorrhizae on Chinese pine |
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Authors: | Jie Wei Reinhard Agerer |
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Institution: | (1) Department Biology I, Division of Organismic Biology: Mycology, University of Munich, Menzinger Str. 67, 80638 Munich, Germany |
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Abstract: | Sebacinoid fungi show a broad mycorrhizal capacity; therefore, they play a very important role in natural systems. Worldwide,
fungi of Sebacinales are present under different environmental conditions and associate with diverse plant hosts, however,
are hitherto poorly studied in China. Two sebacinoid ectomycorrhizae (ECM), Pinirhiza multifurcata and Pinirhiza nondextrinoidea, are described in detail morphologically and anatomically in the present study. They share a plectenchymatous outer mantle
with multiply ramified hyphae in a gelatinous matrix, clampless, thin, thick-walled emanating hyphae with mostly Y-shaped
ramifications and triangular inflations at the point of ramification. P. multifurcata and P. nondextrinoidea can be distinguished by thick cells in mantle layers, the ramification of emanating hyphae, the presence or absence of rhizomorphs,
as well as the differing color reaction in Melzer's reagent. The putative molecular phylogenetic relationships of P. multifurcata and P. nondextrinoidea were inferred by analyses of the partial large subunit nuclear rDNA (nLSU); however, an affiliation to fungal species was
not possible. This is the first report of sebacinoid ECM on Chinese pine. |
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