Blastocladiomycota is one of the currently recognized phyla within the kingdom Fungi . [3] Blastocladiomycota was originally the order Blastocladiales within the phylum Chytridiomycota until molecular and zoospore ultrastructural characters were used to demonstrate it was not monophyletic with Chytridiomycota. [1] The order was first erected by Petersen for a single genus, Blastocladia , which was originally considered a member of the oomycetes. [4] Accordingly, members of Blastocladiomycota are often referred to colloquially as "chytrids." However, some feel "chytrid" should refer only to members of Chytridiomycota. [5] Thus, members of Blastocladiomyota are commonly called "blastoclads" by mycologists. Alternatively, members of Blastocladiomycota, Chytridiomycota, and Neocallimastigomycota lumped together as the zoosporic true fungi. Blastocladiomycota contains 5 families and approximately 12 g...
Zoopagomycota is the sister of Mucoromycota+ Dikarya. It comprises three subphyla: Zoopagomycotina, Kickxellomycotina, and Entomophthoromycotina. The primary ecologies of members of the phylum include pathogens and commensals of animals, parasites of other fungi and amoebae, and rarely, as plant associates. The phylogenetic placement of Zoopagomycota as sister to the remainder of non flagellated fungi is important for numerous reasons, but two are highlighted here. First, diversification with animals and nonplant hosts occurred at least as early as diversification with terrestrial plants. This suggests that fungi were among the first terrestrial organisms and that fossils of the first land animals should be examined with greater scrutiny for fungal associations, potentially providing a more complete picture of early terrestrial fungi. Second, the loss of the flagellum in fungi corresponds to other modifications, inc...
Physoderma is a genus of chytrid fungi. Described by German botanist Karl Friedrich Wilhelm Wallroth in 1833, the genus contains some species that are parasitic on vascular plants, including P. alfalfae and P. maydis , causative agents of crown wart of alfalfa and brown spot of corn, respectively. [3] Of the chytrid genera, Physoderma is the oldest. [4] However, species were confused with the rust fungi , the genus Synchytrium , and the genus Protomyces of Ascomycota . [5] Members of Physoderma are obligate parasites of pteridophytes and angiosperms . [4] There are approximately 80 species within this genus (depending on whether one includes those traditionally belonging to Urophlyctis ). [5] Taxonomic History [ edit ] The genus was erected in 1833 on the basis of resting spore developme...
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