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・ Dictyocephalus
・ Dictyoceratida
・ Dictyochales
・ Dictyochloris
・ Dictyochloropsis
・ Dictyochloropsis reticulata
・ Dictyoconites
・ Dictyocoprotus
・ Dictyocyclus
・ Dictyodea
・ Dictyodendrillidae
・ Dictyoglomi-1 RNA motif
・ Dictyoglomus thermophilum
・ Dictyoloma
・ Dictyonellidae
Dictyonema
・ Dictyonema (disambiguation)
・ Dictyonema hernandezii
・ Dictyonema hirsutum
・ Dictyoneura
・ Dictyonia
・ Dictyonosteus
・ Dictyoolithus
・ Dictyopharidae
・ Dictyophleba
・ Dictyophorine
・ Dictyophorus griseus griseus
・ Dictyophorus spumans
・ Dictyophycus
・ Dictyoporthe


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Dictyonema : ウィキペディア英語版
Dictyonema

''Dictyonema'' is a large and diverse genus of mainly tropical basidiolichens in the family Hygrophoraceae.〔Ertz, D., J. D. Lawrey, M. Sikaroodi, P. M. Gillevet, E. Fischer, D. Killmann, and E. Sérusiaux. 2008. A new lineage of lichenized basidiomycetes inferred from a two-gene phylogeny: The Lepidostromataceae with three species from the tropics. American Journal of Botany 95(12): 1548-1556.〕
==The ''Dictyonema'' symbiosis==
Most lichens are a symbiosis between an ascomycete fungi and a photosynthetic green algae. However, a small percentage of lichens (approximately 10%) are cyanolichens and contain a photosynthetic cyanobacteria instead of green algae,〔Hawksworth, DL, PM Kirk, BC Sutton, and DN Pegler. 1995. Dictionary of the fungi. CAB, Wallingford〕 and an even smaller number (less than 1%) are basidiolichens and contain a basidiomycete fungi instead of an ascomycete.〔Lawrey, JD, M Binder, P Diederich, MC Molina, M Sikaroodi, and D Ertz. 2007. Phylogenetic diversity of lichen-associated homobasidiomycetes. Molecular Phylogenetics and Evolution 44: 778–789.〕 ''Dictyonema'' is a symbiosis between a basidiomycete fungi and a scytonematoid cyanobacteria, making it both a basidiolichen and a cyanolichen, which is a very rare combination.〔James D. Lawrey, JD, R Lücking, HJM Sipman, JL Chaves, SA Redhead, F Bungartz, M Sikaroodi, and PM Gillevet. 2009. High concentration of basidiolichens in a single family of agaricoid mushrooms (Basidiomycota: Agaricales: Hygrophoraceae). Mycological Research 113: 1154-1171.〕 This makes ''Dictyonema'' more closely related to mushrooms than it is to most other lichens.

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