Metschnikowia maris comb. nov., a large-spored yeast species endemic to Serra do Mar Atlantic Rainforest biome, Sao Paulo State, Brazil.

IF 2 3区生物学 Q4 MICROBIOLOGY

International journal of systematic and evolutionary microbiology Pub Date : 2025-08-01 DOI:10.1099/ijsem.0.006891

Ana Raquel de Oliveira Santos, Giovana Reis de Ávila, Olavo Henrique Petrucci Della Torre, Sérgio Luiz Pompéia, Maria da Graça Stupiello Andrietta, Carlos A Rosa, Marc-André Lachance

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Abstract

Two yeast isolates from passion flowers were sampled in the southern part of the Serra do Mar Atlantic Rainforest in Sao Paulo State, Brazil. Barcode sequencing and mating experiments showed them to be representatives of Metschnikowia matae var. maris, thus originally named due to the availability of only a single isolate and uncertainties regarding reproductive isolation. The two new isolates being of the complementary mating type to the previously known strain, intravarietal crosses were performed. They yielded a preponderance of two-spored asci, unlike crosses with M. matae var. matae, which led to largely sterile asci. We therefore elevate the variety maris to the rank of species, with the name Metschnikowia maris comb. nov. The holotype is UFMG-CM-Y397^T (MATα). Strain UFMG-CM-Y7613^A (MAT a) is designated as allotype. The new combination is registered as MB 859665.

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马氏梳。11月，巴西圣保罗州大西洋热带雨林塞拉岛特有的一种大孢子酵母。

在巴西圣保罗州大西洋热带雨林南部，从西番莲中分离出两种酵母菌。条形码测序和交配实验表明它们是Metschnikowia matae var. maris的代表，因此最初命名是由于只有一个分离物和生殖隔离的不确定性。这两个新分离株与先前已知的菌株具有互补交配型，进行了壁内杂交。它们产生了双孢子子囊的优势，不像与M. matae var. matae杂交，后者导致大部分不育子囊。因此，我们将这个品种提升到种的级别，并将其命名为Metschnikowia maris comb。11 .全型为UFMG-CM-Y397T （MATα）。菌株UFMG-CM-Y7613A （MAT a）被指定为同种异型。新的组合注册为MB 859665。

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来源期刊

International journal of systematic and evolutionary microbiology 生物-微生物学

CiteScore

5.20

自引率

21.40%

发文量

426

审稿时长

1 months

期刊介绍： Published by the Microbiology Society and owned by the International Committee on Systematics of Prokaryotes (ICSP), a committee of the Bacteriology and Applied Microbiology Division of the International Union of Microbiological Societies, International Journal of Systematic and Evolutionary Microbiology is the leading forum for the publication of novel microbial taxa and the ICSP’s official journal of record for prokaryotic names. The journal welcomes high-quality research on all aspects of microbial evolution, phylogenetics and systematics, encouraging submissions on all prokaryotes, yeasts, microfungi, protozoa and microalgae across the full breadth of systematics including: Identification, characterisation and culture preservation Microbial evolution and biodiversity Molecular environmental work with strong taxonomic or evolutionary content Nomenclature Taxonomy and phylogenetics.