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Asterostroma species (Basidiomycota) from mangrove forests in Japan

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Mycoscience

Abstract

A new homobasidiomycete, Asterostroma macrosporum, was found in mangrove forests of Iriomote Island, Japan. This species is morphologically characterized by having resupinate basidiomata, a monomitic (asterodimitic) hyphal system, simple septate generative hyphae, dextrinoid asterosetae, four sterigmate basidia and globose, tuberculate and amyloid basidiospores measuring 8.5–11 × 7.5–9 μm. It is similar to A. muscicola, but basidiospores in the latter are smaller (7–8 × 5.5–7 μm). Furthermore, phylogenetic analysis using internal transcribed spacer (ITS) region revealed that A. macrosporum is distinctly separated from A. muscicola. In Japan, A. muscicola is widely distributed in warm-temperate to subtropical regions, growing on a variety of broadleaved trees including mangroves, while A. macrosporum has been found only on mangroves.

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Acknowledgments

This study was partially supported by a Sasakawa Scientific Research Grant from the Japan Science Society (16-291), and a Grant-in-Aid for Scientific Research (KAKENHI 14540653) from the Japan Society for the Promotion of Science (JSPS).

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Correspondence to Hiroto Suhara.

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Suhara, H., Maekawa, N., Ushijima, S. et al. Asterostroma species (Basidiomycota) from mangrove forests in Japan. Mycoscience 51, 75–80 (2010). https://doi.org/10.1007/s10267-009-0006-2

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  • DOI: https://doi.org/10.1007/s10267-009-0006-2

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