Spirosoma taeanense sp. nov., a radiation resistant bacterium isolated from a coastal sand dune.

An aerobic, Gram-negative, non-motile, non-spore-forming, rod-shaped, and pale yellow-colored bacterial strain, designated TS118, was isolated from a sand sample obtained from a coastal sand dune after exposure to 3 kGy of gamma radiation. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the isolate was a member of the genus Spirosoma and most closely related to Spirosoma metallicum PR1014k (95.1% similarity).

Antaroide, a Novel Natural Nine-Membered Macrolide, Inhibits Melanin Biosynthesis in B16F10 Murine Melanoma Cells.

). The chemical structure was established through the interpretation of MS, UV, and NMR spectroscopic data. Antaroide is a nine-membered macrolide with lactone and lactam moieties.

Hymenobacter baengnokdamensis sp. nov., Isolated from the Soil of a Crater Lake in Korea.

An aerobic, Gram-stain-negative, non-motile, non-spore-forming, rod-shaped and pink-colored bacterial strain, designated BRD72, was isolated from a crater lake (Baengnokdam) at the top of Mt. Hallasan in the Republic of Korea. Cells were catalase-positive and oxidase-negative.

Flagellimonas aquimarina sp. nov., and transfer of Spongiibacterium flavum Yoon and Oh 2012 and S. pacificum Gao et al. 2015 to the genus Flagellimonas Bae et al. 2007 as Flagellimonas flava comb. nov. and F. pacifica comb. nov., respectively.

A Gram-stain-negative, non-spore-forming, rod-shaped, aerobic and diffusible yellow-coloured bacterial strain, designated strain ECD12 was isolated from a seaweed, Ecklonia cava. The isolate required sea salts for growth. Catalase-positive and oxidase-negative.

SNP discovery of Korean short day onion inbred lines using double digest restriction site-associated DNA sequencing.

Onion (Allium cepa L.) is an economically important vegetable crop around the world. Genetic and genomic research into various onion accessions will provide insights into the onion genome to enhance breeding strategies and improve crops.

Antartin, a Cytotoxic Zizaane-Type Sesquiterpenoid from a sp. Isolated from an Antarctic Marine Sediment.

Antartin (), a new zizaane-type sesquiterpene, was isolated from sp. SCO736. The chemical structure of was assigned from the interpretation of 1D and 2D NMR in addition to mass spectrometric data.

Dokdonia aurantiaca sp. nov., isolated from seaweed Zostera marina.

A non-motile, orange-coloured and rod-shaped bacterial strain, designated strain ZOW29, was isolated from a seaweed sample collected from the South Sea, Republic of Korea. Cells were Gram-stain-negative, aerobic and non-motile. The isolate required sea salts for growth.

Dokdonia flava sp. nov., isolated from the seaweed Zostera marina.

A non-motile, proteorhodopsin-containing, yellow and rod-shaped bacterial strain, designated ZODW10, was isolated from the seaweed Zostera marina collected from the West Sea, Republic of Korea. Cells were Gram-stain-negative, aerobic and non-motile. The isolate required sea salts for growth.

Taxonomic hierarchy of the phylum Firmicutes and novel Firmicutes species originated from various environments in Korea.

This study assessed the taxonomic hierarchy of the phylum Firmicutes as well as elucidated the isolation and classification states of novel Firmicutes species isolated from Korean territory. The hierarchical classification system of the phylum Firmicutes has been developed since 1872 when the genus Bacillus was first reported and has been generally adopted since 2001. However, this taxonomic hierarchy is still being modified.

Hymenobacter defluvii sp. nov., isolated from wastewater of an acidic water neutralization facility.

A non-motile, pink-coloured and rod-shaped bacterium, designated strain POA9, was isolated from a wastewater treatment facility, Republic of Korea. Cells were Gram-reaction-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were C16 : 1ω5c, iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and anteiso-C15 : 0.

Kordia zosterae sp. nov., isolated from the seaweed, Zostera marina.

A Gram-stain-negative, gliding and rod shaped bacterium, designated strain ZO2-23 was isolated from a seaweed sample collected from the West Sea, Republic of Korea. Cells are catalase-negative and oxidase-positive. Neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain ZO2-23 forms an independent lineage within the genus Kordia.

Winogradskyella flava sp. nov., isolated from the brown alga, Sargassum fulvellum.

An aerobic, gliding and yellow-pigmented bacterium, designated strain SFD31T, was isolated from brown alga collected from the South Sea, Republic of Korea. Cells were Gram-stain-negative, and catalase- and oxidase-positive. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain SFD31T forms an independent lineage within the genus Winogradskyella.

Flavivirga eckloniae sp. nov. and Flavivirga aquimarina sp. nov., isolated from seaweed Ecklonia cava.

Two Gram-stain-negative, non-spore-forming, rod-shaped, aerobic and yellow-coloured bacterial strains, designated strains ECD14T and EC2D5T, were isolated from a seaweed Eckloniacava. The isolates required sea salts for growth. Flexirubin-type and carotenoid pigment was produced.

Sphingomonas limnosediminicola sp. nov. and Sphingomonas palustris sp. nov., isolated from freshwater environments.

Two aerobic, Gram-stain-negative, gliding and yellow-pigmented bacteria, designated strains 03SUJ6T and WM95T were isolated from freshwater sediment of Juam reservoir and freshwater of Woopo wetland, Republic of Korea, respectively. Cells of the two strains are motile by gliding and catalase- and oxidase-positive. The 16S rRNA gene sequence similarity between 03SUJ6T and WM95T was 97.

Hymenobacter tenuis sp. nov., isolated from wastewater of an acidic water neutralization facility.

A non-motile, red-pink-coloured, rod-shaped bacterium, designated strain POB6T, was isolated from a wastewater treatment facility, Republic of Korea. Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were iso-C15 : 0, C16 : 1ω5c, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B).

Reyranella terrae sp. nov., isolated from an agricultural soil, and emended description of the genus Reyranella.

A novel strain designated 11G32T was isolated from an agricultural soil cultivated with Chinese cabbage in Korea. The cells were Gram-stain-negative, aerobic, non-motile and rod-shaped. The strain grew at 15-28 °C (optimum, 20 °C), pH 5.

Anti-Pigmentary Effect of (-)-4-Hydroxysattabacin from the Marine-Derived Bacterium Bacillus sp.

Bioactivity-guided isolation of a crude extract from a culture broth of Bacillus sp. has led to the isolation of (-)-4-hydroxysattabacin (1). The inhibitory effect of (-)-4-hydroxysattabacin (1) was investigated on melanogenesis in the murine melanoma cell line, B16F10, and human melanoma cell line, MNT-1, as well as a pigmented 3D-human skin model.

Oleiagrimonas citrea sp. nov., a marine bacterium isolated from tidal flat sediment and emended description of the genus Oleiagrimonas Fang et al. 2015 and Oleiagrimonas soli.

A Gram-stain-negative, aerobic, rod-shaped (1.4-3.6×0.

Sphingomonas lutea sp. nov., isolated from freshwater of an artificial reservoir.

An aerobic, Gram-stain-negative, gliding and yellow-pigmented bacterium, designated strain JS5T, was isolated from freshwater of Juam reservoir, Republic of Korea. Cells were catalase-positive and oxidase-negative. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain JS5T forms an independent lineage within the genus Sphingomonas.

Korean indigenous bacterial species with valid names belonging to the phylum Actinobacteria.

To understand the isolation and classification state of actinobacterial species with valid names for Korean indigenous isolates, isolation source, regional origin, and taxonomic affiliation of the isolates were studied. At the time of this writing, the phylum Actinobacteria consisted of only one class, Actinobacteria, including five subclasses, 10 orders, 56 families, and 330 genera. Moreover, new taxa of this phylum continue to be discovered.

Pontibacter rugosus sp. nov., isolated from seawater.

A motile and rod-shaped bacterium, designated strain KYW1030T, was isolated from seawater collected from the Gwangyang bay (Republic of Korea). Cells were Gram-reaction-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B), iso-C15 : 0 and iso-C17 : 0 3-OH.

Mucilaginibacter puniceus sp. nov., isolated from wetland freshwater.

A non-motile, rod-shaped and pale-pink bacterium, designated strain WS71T, was isolated from freshwater collected from the Woopo Wetland (Republic of Korea). Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were summed feature 3 (comprising C16 : 1ω6c and/or C16 : 1ω7c), iso-C17 : 0 3-OH, C16 : 0 and iso-C15 : 0.

Hymenobacter coalescens sp. nov., isolated from wetland freshwater.

A non-motile and rod-shaped bacterium, designated strain WW84T, was isolated from freshwater collected from the Woopo wetland (Republic of Korea). Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were C16 : 0, C18 : 0, iso-C15 : 0 and iso-C17 : 1I and/or anteiso-C17 : 1B.

Altererythrobacter rigui sp. nov., isolated from wetland freshwater.

A non-motile and yellow-pigmented bacterium, designated strain WW3, was isolated from freshwater of Woopo wetland, Republic of Korea. Cells were Gram-reaction-negative, aerobic, catalase-positive and oxidase-negative. A maximum-likelihood phylogenetic tree based on 16S rRNA gene sequences showed that strain WW3 forms an independent lineage within the genus Altererythrobacter.