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Lichtheimia corymbifera
''Lichtheimia corymbifera'' is a saprotrophic fungi in the phylum Zygomycota. ''Lichtheimia corymbifera'' is known to cause pulmonary, CNS, rhinocerebral, or cutaneous types of infection in animals and humans with impaired immunity.〔Fungal Infections, Lichtheimia corymbifera. (2013). Retrieved from October 10, 2013 from the Leading International Fungal Education (LIFE) Web Site: http://www.life-worldwide.org/fungal-diseases/lichtheimia-corymbifera/.〕 Species of ''Lichtheimia'' are morphologically and genetically distinct but share highly similar antifungal drug susceptibilities.
==Appearance==
''Lichtheimia corymbifera'' was originally described as ''Mucor corymbifer'' in 1884 by Lichtheim from clinical isolations in Wrocław, Poland.〔 At the time of the description, the species epithet, "corymbifer" was attributed to Cohn. In 1903, the fungus was transferred to the mucoralean genus ''Lichtheimia'' (honoring Lichtheim) by Jules Vuillemin as ''L. corymbifera''. In 1912 the species was again transferred by Saccardo and Trotter to the genus ''Absidia'' as ''A. corymbifera'' where it remained for most of the 20th century. Alastruey-Izquierdo and colleagues in 1991 transferred the species to the genus ''Mycocladus'', described originally by Beauverie in 1900. The type of ''Mycocladus'' has since been shown to be a co-culture with elements that appear to be conspecific with ''Absidia'' van Tieghem (1876).〔 Thus the oldest available name for the fungus is ''Lichthemia corymbifera''.〔〔 Although conventionally treated in the family Mucoraceae, the erection of a new family to accommodate the genus ''Lichtheimia'', the "Lichtheimiaceae", has been proposed.〔
''Lichtheimia corymbifera'' produces small, dark spores inside a pear-shaped (pyriform) sporangia.〔Ransohoff. (November 26, 2010). Draft for 2010/2011 EOL University Species Pages Initiative by Katie Ransohoff. In http://mushroomobserver.org/name/show_name_description/1875?_js=on&_new=true. Retrieved November 9, 2013, from The Mushroom Observer.〕 The species is characterized by a conically shaped columella and a short, pronounced projection, a funnel-shaped apophysis, on the top. The sporangiophores, sporangia containing stalks, are hyaline to slightly pigmented, sometimes branched and arising from stolons in groups of three or seven. The zygospores produced are naked with equatorial rings whose suspensors are opposed and lack appendages. There is limited production of rhizoids, thus, it is often difficult to identify them without the assistance of a dissecting microscope.〔
''Lichtheimia corymbifera'' produces more compact, less effusive growth than ''L. ramosa''. As well, the spoangiospores of the ''L. corymbifera'' are ellipsodial and hyaline when mature versus those of ''L. ramosa'' which are lightly colored and ellipsodial.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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