Fructilactobacillus frigidiflavus sp. nov., a pigmented species, and Levilactobacillus lettrarii sp. nov., a propionate-producing species isolated from sourdough.

IF 2 3区生物学 Q4 MICROBIOLOGY

International journal of systematic and evolutionary microbiology Pub Date : 2025-03-01 DOI:10.1099/ijsem.0.006726

Vi D Pham, Michael G Gänzle

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引用次数: 0

Abstract

The sourdough isolates FUA3702, FUA3912 and FUA3913^T, as well as FUA3695^T and FUA3914, could not be identified to known species of the Lactobacillaceae. The 16S rRNA gene sequences of FUA3702 and FUA3913, FUA3695 and FUA3914 were>99% identical to Fructilactobacillus sanfranciscensis and Levilactobacillus lanxiensis, respectively. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values of strain FUA3913^T when compared to Fl. sanfranciscensis were 83.67 and 26.60%, respectively. In addition, strains FUA3702, FUA3912 and FUA3913^T produce different levels of a yellow C30 carotenoid, but pigmentation has not been described in Fl. sanfranciscensis. The ANI and dDDH values of FUA3695^T and FUA3914 when compared to Lv. langxiensis were 95.22 and 61.20%, respectively. In addition, FUA3695 and FUA3914 convert lactate to 1,2-propanediol and further to propionate. The conversion of lactate to propionate by a single strain has not been documented for any of the species in the Lactobacillaceae. Based on the genomic and physiological characteristics, we proposed the novel species Fructilactobacillus frigidiflavus sp. nov. FUA3913^T (=DSM 118650^T=LMG 33758^T) and Levilactobacillus lettrarii sp. nov. FUA3695^T (=DSM 118651^T=LMG 33759^T).

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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.