Bacterial Diversity in the Different Ecological Niches Related to the Yonghwasil Pond (Republic of Korea).

The bacteriome profile was studied in freshwater ecosystems within the Yonghwasil pond, situated at the National Institute of Ecology, Seocheon-gun, Chungcheongnam-do, central western Korea. Six samples from water, mud, and soil niches were assessed, specifically from lake water, bottom mud (sediment), and root-soil samples of Bulrush, wild rice, Reed, and Korean Willow. Notably, the phylum exhibited an upward trend moving from water to mud to soil samples, whereas showed a contrasting decrease.

sp. nov., sp. nov. and sp. nov.: three novel species isolated from soil.

Three Gram-negative, aerobic and non-motile bacterial strains, BT552, BT553 and KR1UV-12, were isolated from soil samples in Gwangju-si and Gangneung-si, the Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequence showed that strains BT552, BT553 and KR1UV-12 clustered to a distinct clade within the family (order , class ). The strains exhibited the highest genetic similarity with representatives of the genus ; moreover, strains BT552 and BT553 tightly clustered with DAPP-PG 224 (98.

Isolation and characterization of two new species, Hymenobacter mellowenesis sp. nov. and Hymenobacter aranciens sp. nov., from soil.

Strains M29 and ASUV-10-1, which are aerobic, non-flagellated, and Gram-stain-negative, were isolated from soil samples collected in Inje (37°57'49.1"N 128°19'53.7"E) and Cheonan City (36°48'47.

Sphingomonas Immobilis sp. nov., and Sphingomonas natans sp. nov. bacteria isolated from soil.

Two novel strains of bacteria, CA1-15 and BIUV-7, were isolated from soil samples gathered in Cheonan-si, Republic of Korea, and Inje-gun, Republic of Korea, respectively. These bacteria are Gram-negative, aerobic, and non-motile. Phylogenetic evaluations, using the sequence of the 16S rRNA gene, showed that strains CA1-15 and BIUV-7 belong to a distinctive clade within the family Sphingomonadaceae (order Sphingomonadales, class Alphaproteobacteria).

Characterization of radiation-resistance mechanism in Spirosoma montaniterrae DY10 in terms of transcriptional regulatory system.

To respond to the external environmental changes for survival, bacteria regulates expression of a number of genes including transcription factors (TFs). To characterize complex biological phenomena, a biological system-level approach is necessary. Here we utilized six computational biology methods to infer regulatory network and to characterize underlying biologically mechanisms relevant to radiation-resistance.

Description of sp. nov. and sp. nov., Two Novel Basidiomycetous Yeast Species Isolated from Soil in Korea.

Two strains, YP344 and YP579 were isolated from soil samples in Pocheon City, Gyeonggi Province, South Korea. The strains YP344 and YP579 belong to the genus and , respectively. The molecular phylogenetic analysis showed that the strain YP344 was closely related to Strain YP344 differed by four nucleotide substitutions with no gap (0.

Hymenobacter lucidus sp. nov., and Hymenobacter nitidus sp. nov., isolated from soil.

Two novel bacterial strains BT178 and BT635 were isolated from soil collected in Gyeonggi province, Republic of Korea. Both strains were Gram-negative, rod-shaped circular, and had convex, glistening, pink-colored colonies. Phylogenetic analysis based on 16S rRNA gene sequences showed that each of the strains BT178 and BT635 formed an individual lineage within the genus Hymenobacter (family Hymenobacteraceae, order Cytophagales, class Cytophagia, phylum Bacteroidetes).

Microvirga terrestris sp. nov., and Microvirga arvi sp. nov., isolated from soil in South Korea.

Two novel Gram-stain-negative, aerobic, rod shaped bacterial strains BT290 and BT689 were isolated from soil collected in South Korea. Colony morphologies of both strains were circular and convex while the colors of BT290 and BT689 were light-pink and white, respectively. Phylogenetic analysis based on 16S rRNA gene sequences revealed that BT290 and BT689 belong to a distinct lineage within the genus Microvirga (family Methylobacteriaceae, order Rhizobiales, class Alphaproteobacteria, phylum Proteobacteria, kingdom Bacteria).

Hymenobacter translucens sp. nov. and Hymenobacter pini sp. nov. isolated from soil.

Two novel bacterial strains BT175 and BT728 were isolated from soil collected in the Republic of Korea. Both strains were Gram stain negative, rod shaped, and had circular, convex, and pink-colored colonies. The 16S rRNA gene sequence similarity between the strains BT175 and BT728 was 93.

Microvirga splendida sp. nov., bacteria isolated from soil.

Two bacterial strains, BT325 and BT690, were isolated from soil samples collected in Korea. Both strains were Gram stain-negative, short rod-shaped, and formed light-pink colored colonies. The 16S rRNA sequence similarity of strains BT325 and BT690 shared a sequence similarity of 99.

Microvirga jeongseonensis sp. nov., isolated from soil in South Korea.

A novel Gram-stain-negative, aerobic, rod-shaped, convex, and light pink-colored strain BT688 was isolated from a soil sample collected in Jeongseon City, South Korea. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain BT688 belongs to a distinct lineage within the genus Microvirga (family Methylobacteriaceae, order Rhizobiales, class Alphaproteobacteria, phylum Proteobacteria). The 16S rRNA gene sequence similarity between strain BT688 and Microvirga aerilata 5420S-16 was 98.

sp. nov. and sp. nov., two radiation-resistant bacteria from soil.

Two bacterial strains, designated BT189 and BT664, were isolated from soil sampled in the Republic of Korea. Phylogenetic analysis based on the 16S rRNA gene sequences showed that strains BT189 and BT664 belonged to the genus , family (order ). The 16S rRNA genes of the two strains shared a sequence similarity of 93.

Larkinella humicola sp. nov., a gamma radiation-resistant bacterium isolated from soil.

A Gram-negative, short rod-shaped, and pink-pigmented bacterial strain, designated MA1, was isolated from a soil sample from Gijang-gun, Busan in Republic of Korea. The 16S rRNA gene sequence analysis showed that strain MA1 belonged to the genus Larkinella and was closely related to "Larkinella punicea" (97.5% similarity), Larkinella rosea 15J16-1T3A (96.

Pedobacter segetis sp. nov., a Novel Bacterium Isolated from Soil.

A Gram-negative, motile by gliding, rod-shaped, aerobic bacterium, designated SD-b, was isolated from a soil sample collected on Dokdo Island, South Korea. A polyphasic approach based on phenotypic, phylogenetic, and genomic analyses was used to characterize the new isolate. Phylogenetic analysis of 16S rRNA gene sequence showed that strain SD-b belonged to the family Sphingobacteriaceae and most closely related to Pedobacter psychrophilus P4487A (95.

Hymenobacter telluris sp. nov., isolated from soil in South Korea.

Two novel bacterial strains, designated as BT186 and BT505, were isolated from a soil sample collected in South Korea and characterized. Both strains were Gram-stain-negative, rod-shaped, aerobic, circular, convex, and had red-colored colonies. The level of 16S rRNA gene sequence similarity between the strains BT186 and BT505 was 100%, indicating that they represent an identical species.

Microvirga pudoricolor sp. nov., and Microvirga alba sp. nov., isolated from soil in South Korea.

Two novel Gram-stain-negative, aerobic, rod-shaped, circular, convex, light-pink and white-colored bacterial strains BT291 and BT350 were isolated from soil collected in Uijeongbu city (37° 44' 55″ N, 127° 2' 20″ E) and Jeju island (33° 22' 48″ N, 126° 31' 48″ E), respectively, South Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that each of the strains BT291 and BT350 belong to a distinct lineages within the genus Microvirga (family Methylobacteriaceae, order Rhizobiales, class Alpha Proteobacteria, phylum Proteobacteria, kingdom Bacteria). The 16S rRNA gene sequence similarity between the two strains BT291 and BT350 was 97.

Hymenobacter puniceus sp. nov., radiation resistant bacteria isolated from soil in South Korea.

Two novel Gram-negative bacterial strains BT190 and BT191 were isolated from soil collected in Uijeongbu city (37°44'55″N, 127°02'20″E), Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strains BT190 and BT191 belong to a distinct lineage within the genus Hymenobacter (family Hymenobacteraceae, order Cytophagales, class Cytophagia). The level of 16S rRNA gene sequence similarity between the strains BT190 and BT190 was 99.

Hymenobacter guriensis sp. nov., and Hymenobacter duratus sp. nov., Radiation-Resistant Species Isolated from Soil in South Korea.

Two novel Gram-stain-negative, non-motile, aerobic, rod-shaped, circular, convex, red-colored and UV-tolerant strains BT594 and BT646 were isolated from soil collected in Guri city (37° 36' 0″ N, 127° 9' 0″ E) and Gwangju city (37° 22' 0″ N, 127° 17' 0″ E), respectively, South Korea. 16S rDNA sequence analysis indicated that strains BT594 and BT646 belong to a distinct lineage within the genus Hymenobacter (family Hymenobacteraceae, order Cytophagales, class Cytophagia, phylum Bacteroidetes, kingdom Bacteria). The 16S rDNA gene sequence similarity between the two strains BT594 and BT646 was 96.

Adhaeribacter terrigena sp. nov., Isolated from Korean Soil.

A bacterial strain, designated BT258, was isolated from a soil sample collected from Uijeongbu-si, Gyeong-do Province, Republic of Korea. Cells were Gram stain negative, aerobic, rod shaped, motile by gliding, and formed light pink-pigmented colonies on agar plates. Growth of the isolate was observed at 10-37 °C and pH 6-7.

Flavobacterium agrisoli sp. nov., a novel bacterium isolated from soil.

A Gram-stain negative, rod shaped, motile by gliding, yellow-pigmented, aerobic bacterium, designated SE-1-e, was isolated from a soil sample collected on Dokdo Island, South Korea. The isolate was characterized taxonomically using a polyphasic approach based on the phenotypic and genomic analyses. The phylogenetic analysis based on 16S rRNA gene sequence revealed that strain SE-1-e belonged to the genus Flavobacterium in the family Flavobacteriaceae and had the highest sequence similarity with Flavobacterium cheongpyeongense IMCC34759 (97.

Spirosoma profusum sp. nov., and Spirosoma validum sp. nov., radiation-resistant bacteria isolated from soil in South Korea.

Two novel Gram-negative, rod-shaped bacterial strains BT702 and BT704 were isolated from soil collected in Jeongseon (37° 22' 45″ N, 128° 39' 53″ E), Gangwon province, South Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strains BT702 and BT704 belong to distinct lineage within the genus Spirosoma (family Cytophagaceae, order Cytophagales, class Cytophagia and phylum Bacteroidetes). The strain BT702 was closely related to Spirosoma flavus 15J11-2 (96.

Hymenobacter negativus sp. nov., bacteria isolated from mountain soil collected in South Korea.

Two novel Gram-negative bacterial strains BT442 and BT584 were isolated from dry soil collected in mountains Busan and Guri, Korea during wintertime. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strains BT442 and BT584 both belong to a distinct lineage within the genus Hymenobacter (family Hymenobacteraceae, order Cytophagales, class Cytophagia). Strain BT442 was closely related to Hymenobacter soli PB17 (98.

Mucilaginibacter segetis sp. nov., Isolated from Soil.

A bacterial strain, SD-g, was isolated from a soil sample collected on Dokdo Island, South Korea. Cells were observed to be Gram stain negative and short rod shaped, and colonies to be pink in color. Growth of the isolate was observed at 4-30 °C, pH 6-8, and in the presence of 0-2.

Hymenobacter citatus sp. nov., isolated from soil in South Korea.

Two novel Gram-negative bacterial strains, BT507 and BT506, were isolated from soil collected in Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that both strains BT507 and BT506 belong to a distinct lineage within the genus Hymenobacter (family Hymenobacteraceae; order Cytophagales; class Cytophagia). The 16S rRNA genes of the two strains shared a sequence similarity of 100.