sp. nov., isolated from kimchi, a fermented vegetable.

The novel strain CBA3628 was isolated from kimchi, a Korean fermented vegetable. CBA3628 is a cocci-shaped, Gram-stain-positive, catalase- and oxidase-negative and facultatively anaerobic bacterium. The results of phylogenetic analysis based on 16S rRNA gene sequencing indicated that CBA3628 represented a member of the genus of the family .

Effects of gnotobiotic fermentation on global gene expression of germ-free vegetables.

Existing research has underscored the vital interplay between host organisms and their associated microbiomes, which affects health and function. In both plants and animals, host factors critically shape microbial communities and influence growth, health, and immunity. Post-harvest plants, such as those used in kimchi, a traditional Korean dish, offer a unique avenue for exploring host-microbe dynamics during fermentation.

sp. nov., isolated from horse faeces.

A Gram-stain-positive, non-spore-forming, and obligate anaerobic bacteria designated strain CBA3647 was isolated from a horse faecal sample in Jeju, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain CBA3647 formed a distinct phyletic lineage from closely related species within the genus . Based on comparative analysis of 16S rRNA gene sequences, ATCC 27337 is most closely related to strain CBA3647 with a 16S rRNA gene similarity of 98.

sp. nov., isolated from horse faeces.

Strain CBA3108 is a Gram-positive, non-spore-forming, obligately anaerobic bacterium isolated from horse faecal samples obtained in Jeju Island, Republic of Korea. The cells of CBA3108 are non-motile short rods that have been assessed as catalase-positive and oxidase-negative. Growth of the strain occurs under the following conditions: 25-45 °C (optimum, 35 °C); pH 6-9 (optimum, pH 6); and in the presence of 0-6 % (w/v) NaCl (optimum, 2%).

sp. nov., a novel Gram-stain-positive anaerobic coccus isolated from the faeces of a thoroughbred racehorse.

A novel, anaerobic, Gram-stain-positive coccoid strain, CBA3646, was isolated from the faeces of a thoroughbred racehorse. Phylogenetic analysis based on 16S rRNA gene sequencing yielded results indicative of CBA3646 representing a member of the genus , with the species most closely related to it being DSM 20463, with a similarity of 94.79 %.

Role of combinated lactic acid bacteria in bacterial, viral, and metabolite dynamics during fermentation of vegetable food, kimchi.

Lactic acid bacteria (LAB) in kimchi, a traditional Korean food, are major fermentative microorganisms affecting the quality, safety, and nutritional and organoleptic properties of the final product. In this study, we determined the role of three key LAB strains, Leuconostoc gelidum, Latilactobacillus sakei, Weissella koreensis originated from different raw ingredients during natural fermentation, as opposed to an axenic environment. Starter cultures were inoculated into food with wild indigenous microbial communities, and the dynamics of bacterial communities and metabolites were analyzed during fermentation.

Host phylogeny, habitat, and diet are main drivers of the cephalopod and mollusk gut microbiome.

Background: Invertebrates are a very attractive subject for studying host-microbe interactions because of their simple gut microbial community and host diversity. Studying the composition of invertebrate gut microbiota and the determining factors is essential for understanding their symbiotic mechanism. Cephalopods are invertebrates that have similar biological properties to vertebrates such as closed circulation system, an advanced nervous system, and a well-differentiated digestive system.

Pathogenomics of Streptococcus ilei sp. nov., a newly identified pathogen ubiquitous in human microbiome.

Viridans group streptococci are a serious health concern because most of these bacteria cause life-threatening infections, especially in immunocompromised and hospitalized individuals. We focused on two alpha-hemolytic Streptococcus strains (I-G2 and I-P16) newly isolated from an ileostomy effluent of a colorectal cancer patient. We examined their pathogenic potential by investigating their prevalence in human and assessing their pathogenicity in a mouse model.

Mitofusin-2 boosts innate immunity through the maintenance of aerobic glycolysis and activation of xenophagy in mice.

Mitochondrial function and innate immunity are intimately linked; however, the mechanisms how mitochondrion-shaping proteins regulate innate host defense remains largely unknown. Herein we show that mitofusin-2 (MFN2), a mitochondrial fusion protein, promotes innate host defense through the maintenance of aerobic glycolysis and xenophagy via hypoxia-inducible factor (HIF)-1α during intracellular bacterial infection. Myeloid-specific MFN2 deficiency in mice impaired the antimicrobial and inflammatory responses against mycobacterial and listerial infection.

sp. nov., isolated from the gut of the Korean turban shell, .

A novel Gram-stain-negative, coccus-shaped, aerobic and motile bacterial strain, designated S12M18, was isolated from the gut of the Korean turban shell, . Phylogenetic analysis based on 16S rRNA gene sequences showed that strain S12M18 belonged to the genus and had the highest 16S rRNA gene sequence similarity twith HDW-19 (98.63 %).

Male castration increases adiposity via small intestinal microbial alterations.

Castration of young males is widely used in the cattle industry to improve meat quality, but the mechanism linking hypogonadism and host metabolism is not clear. Here, we use metataxonomic and metabolomic approaches to evaluate the intestinal microbiota and host metabolism in male, castrated male (CtM), and female cattle. After pubescence, the CtM cattle harbor distinct ileal microbiota dominated by the family Peptostreptococcaceae and exhibit distinct serum and muscle amino acid profiles (i.

sp. nov., isolated from the faeces of the oriental stork, .

A novel Gram-stain-positive, non-motile, non-spore-forming, coccobacillus-shaped, strictly aerobic bacterium, designated strain H23T48, was isolated from the faecal sample of an oriental stork collected from the Seoul Grand Park Zoo in Seoul, Republic of Korea. Optimal growth of strain H23T48 was observed at 30-37 °C, pH 8 and with 3 % (w/v) NaCl. 16S rRNA gene sequence-based phylogenetic analysis revealed that strain H23T48 was closely related to the genus , with 97.

sp. nov., isolated from the faeces of an Oriental stork.

A novel, Gram-stain-positive, non-spore-forming, facultatively anaerobic bacterium, designated strain H21T32, was isolated from the faeces of an Oriental stork, . Cells formed cocci grouped in pairs, tetrads or conglomerates, and colonies on solid medium were pale yellow. Strain H21T32 belonged to the genus , family , order and class .

sp. nov., isolated from the intestinal tract of a Korean indigenous freshwater fish, .

A novel Gram-negative, obligately aerobic, rod-shaped and non-motile bacterium, designated strain K13M18, was isolated from the intestinal tract of a Korean indigenous fish, oily bitterling (). Strain K13M18 formed creamy-pink colonies on a marine agar plate. Results of phylogenetic analysis based on the 16S rRNA gene sequence similarity indicated that strain K13M18 was most closely related to DRYC-M-16, sharing 97.

sp. nov., isolated from the gut of the Korean scallop, .

A novel Gram-stain-negative, aerobic, rod-shaped, reddish-orange-coloured, gliding bacterial strain, designated L12M1, was isolated from the gut of the Korean scallop, . Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain L12M1 formed a monophyletic clade with the strains in the genus and showed highest 16S rRNA gene sequence similarity to YS10 (98.66 %).

sp. nov., isolated from Korean shiner intestine.

A novel Gram-stain-negative, non-spore-forming, obligate aerobic, motile, rod-shaped, and flagellated bacterium, designated S11R28, was isolated from the intestinal tract of a Korean shiner, . Based on 16S rRNA gene sequences, strain S11R28 was identified as member of the genus in class , and was closely related to DSM 23061 (98.49 %).

sp. nov., a bacterium isolated from feces of oriental stork, .

A novel Gram-stain-negative, facultatively anaerobic, non-motile, non-violet-pigmented, rod-shaped bacterium, designated strain H11R3, was isolated from the feces of Oriental stork, , collected from Seoul Grand Park Zoo, Republic of Korea. Phylogenetic analysis of the 16S rRNA gene sequence revealed that H11R3 formed a monophyletic clade with DSM 3764, DSM 100243, and DSM 103822, with sequence similarities of 98.8, 98.

sp. nov., isolated from the gastrointestinal tract of a blood cockle ().

A novel bacterial isolate, designated as strain BM15, was isolated from the gastrointestinal tract of a blood cockle, , which was collected from the foreshore of Beolgyo-eup, Republic of Korea. Strain BM15 was Gram-stain-negative, non-motile, strictly aerobic and short-rod-shaped. Optimum growth of the isolate occurred at 20 °C, in the presence of 4 % (w/v) NaCl and at pH 6.

Viral community predicts the geographical origin of fermented vegetable foods more precisely than bacterial community.

Fermented foods are considered as an integral part of the global human diet. Fermented foods also have unique microbial communities such as bacteria, archaea, fungi, and viruses that are essential to the fermentation process and affect final product characteristics. Despite the ecological importance of virus, little is known about the diversity and ecological role of virus in the food ecosystem.

Oceanisphaera avium sp. nov., isolated from the gut of the cinereous vulture, Aegypius monachus.

A Gram-stain-negative, aerobic, catalase- and oxidase-positive, rod-shaped, flagellated bacterial strain, designated AMac2203, was isolated from the gut of the cinereous vulture, Aegypiusmonachus, collected from the Seoul Grand Park Zoo, Republic of Korea. Strain AMac2203 grew optimally at 15-25 °C, pH 7-8 and in the presence of 3-5 % (w/v) NaCl. Phylogenetic analysis revealed 97.

Tumebacillus avium sp. nov., isolated from the gut of a cinereous vulture, Aegypius monachus.

A Gram-stain-positive, facultatively aerobic, spore-forming, oxidase-positive, catalase- and DNase-negative, rod-shaped and motile bacterial strain, AR23208, was isolated from the gut of a cinereous vulture (Aegypius monachus), collected at Seoul Grand Park Zoo (Republic of Korea). Strain AR23208 grew optimally at 25-30 °C, at pH 7 and in the absence of NaCl. Phylogenetic analysis revealed that strain AR23208 shared 98.

Social status shapes the bacterial and fungal gut communities of the honey bee.

Despite the fungal abundance in honey and bee bread, little is known about the fungal gut community of the honey bee and its effect on host fitness. Using pyrosequencing of the 16S rRNA gene and ITS2 region amplicons, we analysed the bacterial and fungal gut communities of the honey bee as affected by the host social status. Both communities were significantly affected by the host social status.

Kushneria konosiri sp. nov., isolated from the Korean salt-fermented seafood Daemi-jeot.

A halophilic bacterial strain, X49T, was isolated from the Korean traditional salt-fermented seafood Daemi-jeot. X49T was an obligately aerobic, Gram-stain-negative, motile, oval or rod-shaped (0.5-1.

Bombella apis sp. nov., an acetic acid bacterium isolated from the midgut of a honey bee.

As part of a study to investigate the microbial diversity in the intestine of Apis mellifera, we isolated strain MRM1T from the midgut. MRM1T was a Gram-stain-negative, strictly aerobic, non-motile, non-spore forming and rod-shaped bacteria. Creamy beige-coloured colonies were circular with entire margins in Lactobacilli MRS agar.