Article
Microbiology
Chao-Jian Hu, Wen-Dong Xian, Yi-Qing Lv, Cheng-Xiang Peng, Rong-Xu Shan, Ze-Chang Cheng, Qian Lv, Ye Tian, Jian-Yu Jiao, Sha Tan, Wen-Jun Li
Summary: Two closely related moderately thermophilic bacteria, strains SYSU G05006T and SYSU G05005, were isolated from a sample collected from Rehai National Park, Tengchong, Yunnan Province, PR China. They were closely related to Caldovatus sediminis based on the phylogenetic analysis and were described as a new species, Caldovatus aquaticus sp. nov. Strain SYSU G05006T had a genome size of 3.87 Mbp and showed optimal growth at 55 degrees C and pH 6.0.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Chao-Jian Hu, Wen-Dong Xian, Xiao-Qing Luo, Lan Liu, Meng-Meng Li, Jian-Yu Jiao, Sha Tan, En-Min Zhou, Wen-Jun Li
Summary: In this study, three new strains closely related to the genus Thermus were isolated from a hot spring in southwestern China. The genomic profile and taxonomic status of one of the strains (SYSU G05001(T)) were determined using whole-genome sequencing and a polyphasic taxonomic approach. This strain, designated as Thermus brevis sp. nov., exhibited optimal growth at a temperature of 55 degrees Celsius, pH 7.0, and NaCl concentration of 1%.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Mohit Kumar Saini, Shohei Yoshida, Aswathy Sebastian, Eri Hara, Hideyuki Tamaki, Nathan T. Soulier, Istvan Albert, Satoshi Hanada, Marcus Tank, Donald A. Bryant
Summary: A new microbial strain, named Elioraea tepida, was isolated from an alkaline siliceous hot spring in Yellowstone National Park, USA. The strain grows chemoheterotrophically by oxygen-dependent respiration and can also undergo photoheterotrophic growth under strictly oxic conditions. It does not exhibit photoautotrophic growth under oxic or anoxic conditions, indicating that it belongs to an aerobic anoxygenic phototrophic bacterium.
Article
Microbiology
Yu-Zhen Ming, Lan Liu, Ai-Ping Lv, Wen-Dong Xian, Ze-Tao Liu, Meng-Meng Li, Jian-Yu Jiao, Bao-Zhu Fang, Wen-Jun Li
Summary: Two bacterial strains, SYSU G02173(T) and SYSU G03142, isolated from hot springs in Tibet, belong to the family Sphingosinicellaceae and exhibit aerobic growth with optimal conditions at neutral pH and higher temperatures. These novel strains showed positive oxidase and catalase activities, along with motile rod-shaped cells and growth with NaCl in the culture medium.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Microbiology
Hovik Panosyan, Armine Margaryan, Nils-Kare Birkeland
Summary: Twelve thermophilic Anoxybacillus strains were isolated from a hot spring in Nagorno-Karabakh, with strain K1(T) being Gram-stain-positive, moderately thermophilic, and capable of growth within specific temperature and pH ranges. The strain showed high similarity to Anoxybacillus flavithermus DSM 2641(T) but was proposed as a separate species, Anoxybacillus karvacharensis, based on genetic analysis.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Ai -Ping Lv, Yu-Zhen Ming, Ze-Tao Liu, Yu-Ting Ouyang, Meng -Meng Li, Zheng-Han Lian, Jian-Yu Jiao, Ting-Ting She, Lan Liu, Wen-Jun Li
Summary: A novel anaerobic bacterium SYSU GA19001T, which belongs to the genus Clostridium, was isolated from a hot spring sediment sample. It showed the highest sequence similarity to Clostridium swellfunianum CICC 10730T (96.63%) and Clostridium prolinivorans PYR-10T (96.11%). The strain SYSU GA19001T is a Gram-stain positive, spore-forming, rod-shaped bacterium, and it can grow at pH 5.0-9.0 (optimum, pH 7.0), 37-55°C (optimum, 45°C), and in NaCl concentrations of 0-2.0% (optimum, 0%).
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Microbiology
Shigeru Kawai, Mikako Ishikawa, Satoshi Hanada, Shin Haruta
Summary: A novel thermophilic chemotrophic bacterium, Hydrogenophilus thiooxidans sp. nov., was isolated from Nakabusa Hot Spring in Japan. The bacterium can grow both chemoheterotrophically and autotrophically under different conditions.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Dariimaa Ganbat, DoKyung Oh, Yong-Jik Lee, Dong-Woo Lee, Seong-Bo Kim, Won-Jae Chi, Ki-Eun Lee, Byoung-Hee Lee, You-Jung Jung, Jung-Sook Lee, Sang-Jae Lee
Summary: The taxonomic position of strain EF45031(T) from a hot spring was determined using molecular methods, and it was classified as a new species of the genus Brachybacterium, named Brachybacterium sillae sp. nov.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2023)
Article
Microbiology
Xinli Pan, Zhe Li, Fei Li, Yuanlin Huang, Qiaozhen Wang, Shushi Huang, Wenjin Hu, Mingguo Jiang
Summary: Strain M0105(T) is a novel moderately thermophilic and halophilic bacterium isolated from mangrove sediment in the Beibu Gulf, south China. It belongs to the family 'Rhodobacteraceae' and may represent a new species in a new genus named Thermohalobaculum xanthum gen. nov., sp. nov. with a high adaptive capacity to the mangrove environment.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Microbiology
Yuxin Chen, Arisa Nishihara, Takao Iino, Moriya Ohkuma, Shin Haruta
Summary: YA01T, a novel nitrogen-fixing fermentative bacterium isolated from Nakabusa hot springs in Japan, represents a new species of the genus Caldicellulosiruptor, with distinct phylogenetic position, biochemical and physiological characteristics, and major cellular fatty acids differentiating it from other Caldicellulosiruptor species.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Alexander G. Elcheninov, Olga A. Podosokorskaya, Olga L. Kovaleva, Andrei A. Novikov, Stepan Toshchakov, Elizaveta A. Bonch-Osmolovskaya, Ilya Kublanov
Summary: A novel aerobic moderately thermophilic bacterium, strain 2918(T), was isolated from a terrestrial hot spring in Kamchatka, Russian Federation. It grows at temperatures between 25-60°C and pH 5.0-8.0, representing a distinct lineage within Planctomycetes named Thermogemmata gen. nov. Strain 2918(T) is the first species of this new genus, named Thermogemmata fonticola sp. nov.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Olga A. Podosokorskaya, Alexander G. Elcheninov, Andrei A. Novikov, Alexander Y. Merkel, Ilya Kublanov
Summary: A novel bacterium, strain B-154 T, was isolated from a terrestrial hot spring in the Baikal lake region. This strain is facultatively anaerobic and moderately thermophilic, with a growth temperature range of 30-57°C and pH range of 5.1-8.4. It is a chemoorganoheterotroph, capable of utilizing various mono-, di-, and polysaccharides. Phylogenomic analysis revealed that strain B-154 T belongs to a novel genus and species within the Verrucomicrobiota.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2023)
Article
Microbiology
Lin Hu, Mengli Xia, Xi Gao, Yi-Xin Huo, Yu Yang
Summary: Strain BIT-GX5(T) is a novel species within the genus Cellulosimicrobium, isolated from sesame husks compost in Beijing, China. It shows unique biological characteristics and is capable of growing at higher temperatures.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
So Muramatsu, Setsuko Hirose, Takao Iino, Moriya Ohkuma, Satoshi Hanada, Shin Haruta
Summary: A novel bacterium strain N10(T) containing bacteriochlorophyll was isolated from a hot spring in Nagano Prefecture, Japan. The strain exhibited aerobic anoxygenic phototrophic characteristics and could not grow anaerobically even under illumination. Genome analysis revealed the presence of genes related to bacteriochlorophyll and carotenoid biosynthesis, light-harvesting complexes, and type-2 photosynthetic reaction centre. Phylogenetic analysis placed strain N10(T) in a distinct lineage near Tabrizicola and Xinfangfangia genera and some species in the genus Rhodobacter. The strain showed low sequence identity with species in the family Rhodobacteraceae based on 16S rRNA gene. Accordingly, a new genus and species, Neotabrizicola shimadae, are proposed for strain N10(T).
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Meng-Meng Li, Ai-Ping Lv, Zi-Yu Zhao, Wen-Dong Xian, Zheng-Han Lian, Yu-Ting OuYang, Hong Ming, Sha Tan, Jian-Yu Jiao, En-Min Zhou, Lan Liu, Wen-Jun Li
Summary: Biological denitrification is an important process in the nitrogen biogeochemical cycle of terrestrial geothermal environments. This study isolated five thermophilic bacterial strains from hot spring sediments in Tibet, China, and identified them as novel species of the genus Thermus. The strains showed potential function in nitrogen metabolism based on the presence of denitrification genes in their genomes.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2022)