sp. nov., isolated from wetland soil of ecology park.

A Gram-staining-positive, motile, aerobic and rod-shaped bacterium, designated strain MA9 was isolated from wetland soil of ecology park, in Seoul, Republic of Korea. This bacterium was characterized to determine its taxonomic position by using the polyphasic approach. Strain MA9 grew at 10-37 °C and at pH 6.

An Exploratory Study of Psychological Distress, Professional Quality of Life, Effort-Reward Imbalance, and Turnover Intention of Hospital Nurses during the COVID-19 Pandemic.

This exploratory study aimed to identify factors that may influence nurses' turnover intentions during the COVID-19 pandemic. The data were collected during January 2023 from 250 nurses and analyzed using descriptive statistics, -test, ANOVA, Scheffe, Pearson's correlation, and multiple regression analysis. Among the sociodemographic and clinical characteristics, nursing care and working with personal protective equipment significantly impacted the turnover intention.

Characterization of four novel bacterial species of the genus , , and sp.nov., isolated from wet land.

Four novel bacterial strains, designated as RG327, SE158, RB56-2 and SE220, were isolated from wet soil in the Republic of Korea. To determine their taxonomic positions, the strains were fully characterized. On the basis of genomic information (16S rRNA gene and draft genome sequences), all four isolates represent members of the genus .

Arthrobacter hankyongi sp. nov., Isolated From Wet Land.

A Gram-staining-positive, catalase positive and oxidase negative, non-motile, non-flagellated, and oval-shaped bacterium, was designated as I2-34, isolated from wetland in Soul South Korea. Colonies were round, entire, raised, and cream colored after two days of incubation on R2A agar plates at 25 °C. Based on genomes (both 16S rRNA gene and draft genome) sequence analysis, strain I2-34 belongs to the genus Arthrobacter and was most closely related to Arthrobacter deserti YIM CS25 (98.

Paludibacterium denitrificans sp. nov., a Novel Denitrifying Bacterium Isolated from Activated Sludge.

A Gram-reaction-negative, facultatively aerobic, motile, non-spore-forming, rod-shaped, and denitrifying bacterium, designated dN18-1, was isolated from activated sludge, Republic of Korea. This bacterium was investigated via a polyphasic approach to reveal its taxonomic position. Phylogenetic analysis based on 16S rRNA gene sequence indicated that strain dN18-1 belongs to the genus Paludibacterium and is most closely related to P.

sp. nov., isolated from ginseng-cultivation soil with ginsenoside-converting activity.

A Gram-stain-negative, non-motile, non-spore-forming, aerobic, rod-shaped and yellow-pigmented bacterium, designated strain Gsoil 183, was isolated from ginseng-cultivation soil sampled in Pocheon Province, Republic of Korea. This bacterium was characterized to determine its taxonomic position by using a polyphasic approach. Strain Gsoil 183 grew at 10-37 °C and at pH 5.

Ochrobactrum soli sp. nov., Isolated from a Korean Cattle Farm.

A Gram stain negative, motile, non-spore-forming, rod-shaped, strictly aerobic, beige-pigmented bacterium, designated strain BO-7, was isolated from soil of cattle farm, in Seosan, Republic of Korea. On the basis of 16S rRNA gene sequencing, strain BO-7 clustered with species of the genus Ochrobactrum and appeared closely related to O. haematophilum CCUG 38531 (98.

sp. nov., isolated from activated sludge.

A Gram-stain-positive, strictly aerobic, non-motile, non-spore-forming and oval-shaped bacterium, designated strain BO-16 was isolated from activated sludge. In this study, we describe the taxonomic characterization and classification of this bacterium by using the polyphasic approach. Growth of BO-16 was observed at 10-40 °C (optimum, 25-37 °C) and at pH 5.

sp. nov., a novel denitrifying bacterium isolated from sludge.

A novel Gram-reaction-negative, facultative-aerobic, motile, non-spore-forming, oval-shaped and denitrifying bacterium, designated BO-81, was isolated from sludge sampled in the Republic of Korea. This bacterium was investigated via a polyphasic approach to reveal its taxonomic position. The results of phylogenetic analysis based on 16S rRNA gene sequencing indicated that strain BO-81 belonged to the family and was related to the closest species (98.

sp. nov., isolated from activated sludge.

A novel Gram-stain-negative, yellowish-pigmented bacterial strain, designated LA-38, was isolated from activated sludge of wastewater treatment plants in Hanam city, South Korea. Cell of LA-38 were rod-shaped, aerobic, motile and non-spore-forming. In phylogenetic analyses based on 16S rRNA genes, LA-38 clustered with species of the genus and appeared closely related to DSM 5680 (99.

sp. nov., isolated from a river.

A Gram-stain-negative, rod-shaped, motile, facultatively aerobic and ivory-pigmented bacterium (designated strain LA-55) was isolated from a river in the Republic of Korea. On the basis of 16S rRNA gene sequencing, strain LA-55 clustered with species of the genus and was closely related to KSL-102 (97.3 %), DSM 4731 (97.

Mesorhizobium hankyongi sp. nov. Isolated from Soil of Ginseng Cultivating Field.

A Gram-negative, non-spore-forming and rod-shaped, bacterium (designated Gsoil 531) was isolated from soil of a ginseng field. On the basis of 16S rRNA gene sequence, strain Gsoil 531 clustered with species of the genus Mesorhizobium and was closely related to M. camelthorni CCNWXJ 40-4 (98.

Actinomadura hankyongense sp. nov. Isolated From Soil of Ginseng Cultivating Field.

A Gram-positive, rod-shaped, non-spore-forming, and aerobic bacterium (Gsoil 556) was isolated from soil of a ginseng field and subjected to its taxonomic position. Based on 16S rRNA gene sequence similarity, strain Gsoil 556 was shown to belong to the genus Actinomadura of the family Thermomonosporaceae and was closely related to A. montaniterrae CYP1-1B (99.

Olivibacter ginsenosidimutans sp nov., with ginsenoside converting activity isolated from compost, and reclassification of Pseudosphingobacterium domesticum as Olivibacter domesticus comb. nov.

A Gram-stain-negative, aerobic and rod-shaped, bacterium designated as strain BS18, was isolated from compost and subjected to a polyphasic taxonomic analysis. On the basis of the results of 16S rRNA gene sequence analysis, BS18 represents a member of the genus Olivibacter of the family Sphingobacteriaceaeand is most closely related to Olivibacter oleidegradansTBF2/20.2 (93.

Polaromonas ginsengisoli sp. nov., isolated from ginseng field soil.

A Gram-reaction-negative, strictly aerobic, milky-white and rod-shaped bacterium (designated Gsoil 115) isolated from ginseng field soil was characterized by a polyphasic approach to clarify its taxonomic position. Strain Gsoil 115 grew optimally at 30 °C and at pH 7.0 on Reasoner's 2A agar medium.

Aeromicrobium panacisoli sp. nov. Isolated from Soil of Ginseng Cultivating Field.

A Gram-positive, rod-shaped, non-spore-forming, and aerobic bacterium (Gsoil 137) was isolated from soil of a ginseng field of Pocheon province in South Korea and subjected to a polyphasic approach in order to determine its taxonomic position. On the basis of 16S rRNA gene sequence similarity, strain Gsoil 137 was shown to belong to the family Nocardioidaceae and was closely related to Aeromicrobium ginsengisoli Gsoil 098 (96.7%), Aeromicrobium panaciterrae (96.

Mucilaginibacter panaciglaebae sp. nov., isolated from soil of a ginseng field.

A Gram-reaction-negative, strictly aerobic, non-motile and rod-shaped bacterium, designated strain BXN5-31, was isolated from soil of a ginseng field, and its taxonomic position was investigated using a polyphasic approach. Strain BXN5-31 grew at 18-37 °C and at pH 6.0-8.

Phenylobacterium hankyongense sp. nov., isolated from ginseng field soil.

A Gram-stain-negative, aerobic, non-motile, non-spore-forming and rod-shaped bacterial strain, designated HKS-05, was isolated from ginseng field soil. This bacterium was characterized to determine its taxonomic position by using the polyphasic approach. HKS-05 grew at 10-37 °C and at pH 6.

Sphingomonas aquatica sp. nov., isolated from tap water.

A Gram-stain-negative, strictly aerobic, rod-shaped bacterium, designated W1-2-1T, was isolated from tap water in South Korea. The strain was characterized by a polyphasic approach to clarify its taxonomic position. Strain W1-2-1T grew at 18-42 °C and at pH 6.

Phenylobacterium aquaticum sp. nov., isolated from the reservoir of a water purifier.

A Gram-reaction-negative, strictly aerobic, non-motile, non-spore-forming, rod-shaped bacterial strain designated W2-3-4T was isolated from the reservoir of a water purifier. This bacterium was characterized to determine its taxonomic position by using a polyphasic approach. Strain W2-3-4T grew well at 25-30 °C on nutrient and R2A agars.

Sphingomonas hankyongensis sp. nov. isolated from tap water.

A Gram reaction-negative, strictly aerobic, non-motile, translucent and rod-shaped bacterium (designated W1-2-4(T)) isolated from tap water was characterized by a polyphasic approach to clarify its taxonomic position. Strain W1-2-4(T) was observed to grow optimally at 25-30 °C and at pH 6.5 on nutrient agar.

Marmoricola ginsengisoli sp. nov. and Marmoricola pocheonensis sp. nov. isolated from a ginseng-cultivating field.

Two novel actinobacteria, designated strains Gsoil 097T and Gsoil 818T, isolated from soil of a ginseng field, South Korea, were characterized by a polyphasic approach to clarify their taxonomic positions. They were Gram-reaction-positive, aerobic, non-spore-forming and rod-shaped. Phylogenetic analysis based on 16S rRNA gene sequences indicated that both isolates belong to the genus Marmoricola and were related most closely to Marmicola solisilvae KIS18-7T (99.

Isolation and Characterization of Novel Denitrifying Bacterium Geobacillus sp. SG-01 Strain from Wood Chips Composted with Swine Manure.

Nitrate contamination in ground and surface water is an increasingly serious environmental problem and only a few bacterial strains have been identified that have the ability to remove nitrogen pollutants from wastewater under thermophilic conditions. We therefore isolated thermophilic facultative bacterial strains from wood chips that had been composted with swine manure under aerated high temperature conditions so as to identify strains with denitrifying ability. Nine different colonies were screened and 3 long rod-shaped bacterial strains designated as SG-01, SG-02, and SG-03 were selected.

Cloning, expression, and biochemical characterization of a novel GH16 β-agarase AgaG1 from Alteromonas sp. GNUM-1.

Alteromonas sp. GNUM-1 is known to degrade agar, the main cell wall component of red macroalgae, for their growth. A putative agarase gene (agaG1) was identified from the mini-library of GNUM-1, when extracellular agarase activity was detected in a bacterial transformant.