<i>Spencermartinsiella japonica</i> f.a., sp. nov., a novel yeast species isolated from biofilm in a reverse osmosis system

Novel <i>Spencermartinsiella</i> strains, JCM 35526^T and 261-2C, were isolated from biofilm formed on a reverse osmosis membrane in the phosphate recovery system of a semiconductor factory. Morphological, biochemical, physiological, and chemotaxonomic analyses as well as sequence analysis of the concatenated internal transcribed spacer region and D1/D2 domains of the large subunit of the rRNA gene confirmed that strains JCM 35526^T and 261-2C, were distinct from all currently known <i>Spencermartinsiella</i> species. The holotype and isotype strains of the new species, which is named <i>Spencermartinsiella japonica</i>, are JCM 35526^T and MUCL 58310^I, respectively.