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''Phycomyces'' is a genus of fungus in the Zygomycota phylum. They are known for their strong phototropism response and helical growth of the sporangium. The best studied species is ''Phycomyces blakesleeanus''. Image:Phycomyces2.JPG|''Phycomyces'' sporangium with fingers for size comparison. Image:Phycomyces3.JPG|''Phycomyces'' exhibiting strong phototropism. Image:Phycomyces4.jpg|newly emerged ''Phycomyces'' from a fish food pellet in potting soil. ==Asexual reproduction== ''Phycomyces'' can reproduce via extension of mycelia, or by production of spores either asexually or sexually. The asexual cycle includes the formation of spore containing sporangia borne on the top of sporangiophores that may extend 10 to 15 cm above the surface of the fungal colony from which they emerged (see close-up of the ''Phycomyces'' sporangium). The long filamentous sporangiophores respond to divergent environmental signals including light, gravity, wind, chemicals and adjacent objects. The sporangia contain vegetative spores with one to six haploid nuclei. These spores when dispersed can establish new colonies. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phycomyces」の詳細全文を読む スポンサード リンク
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