Gromochytrium mamkaevae gen. & sp. nov. and two new orders: Gromochytriales and Mesochytriales (Chytridiomycetes)

S. A. Karpov, A. A. Kobseva, M. A. Mamkaeva, K. A. Mamkaeva, K. V. Mikhailov, G. S. Mirzaeva, V. V. Aleoshin

Результат исследований: Научные публикации в периодических изданияхстатья

24 Цитирования (Scopus)

Аннотация

During the last decade several new orders were established in the class Chytridiomycetes on the basis of zoospore ultrastructure and molecular phylogeny. Here we present the ultrastructure and molecular phylogeny of strain x-51 CALU - a parasite of the alga Tribonema gayanum, originally described as Rhizophydium sp. based on light microscopy. Detailed investigation revealed that the zoospore ultrastructure of this strain has unique characters not found in any order of Chytridiomycetes: posterior ribosomal core unbounded by the endoplasmic reticulum and detached from the nucleus or microbody-lipid complex, and kinetosome composed of microtubular doublets. An isolated phylogenetic position of x-51 is further confirmed by the analysis of 18S and 28S rRNA sequences, and motivates the description of a new genus and species Gromochytrium mamkaevae. The sister position of G. mamkaevae branch relative to Mesochytrium and a cluster of environmental sequences, as well as the ultrastructural differences between Gromochy
Язык оригиналаанглийский
Страницы (с-по)115-126
Число страниц12
ЖурналPersoonia
Том32
Номер выпуска32
DOI
СостояниеОпубликовано - 2014

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