Characterization of novel Gluconobacter species from fruits and fermented food products: Gluconobacter cadivus sp. nov., Gluconobacter vitians sp. nov. and Gluconobacter potus sp. nov

Strains LMG 1744(T), LMG 1745, LMG 31484(T), LMG 1764(T) and R-71646 were isolated from rotting fruits and fermented food products. A phylogenomic analysis based on 107 single-copy core genes revealed that they grouped in a Gluconobacter lineage comprising Gluconobacter oxydans, Gluconobacter roseus, Gluconobacter sphaericus, Gluconobacter kanchanaburiensis, Glucono-bacter albidus, Gluconobacter cerevisiae, Gluconobacter kondonii and Gluconobacter aidae. OrthoANIu and digital DNA hybridiza-tion analyses demonstrated that these five strains represented three novel Gluconobacter species, which could be differentiated from the type strains of closely related Gluconobacter species by multiple phenotypic characteristics. We therefore propose to classify strains LMG 1744T and LMG 1745 in the novel species Gluconobacter cadivus sp. nov., with LMG 1744(T) (=CECT 30141(T)) as the type strain; to classify strain LMG 31484(T) as the novel species Gluconobacter vitians sp. nov., with LMG 31484(T) (=CECT 30132(T)) as the type strain; and to classify strains LMG 1764(T) and R-71646 in the novel species Gluconobacter potus sp. nov., with LMG 1764(T) (=CECT 30140(T)) as the type strain.

Automated summary

A study revealed three novel Gluconobacter species isolated from rotting fruits and fermented food products, which could be differentiated from closely related species by multiple phenotypic characteristics.