ArticleMicrobes and environments2018
Nitrogenase Activity in Thermophilic Chemolithoautotrophic Bacteria in the Phylum Aquificae Isolated under Nitrogen-Fixing Conditions from Nakabusa Hot Springs.
Article in Microbes and environments, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Highly diverse diazotrophs drive high NFundamental research · 2026Article
- Cross-Feeding of Carbon and Nitrogen Between Aquificales and Thermus in Hot Springs.Environmental microbiology · 2026Article
- Nitrogen-fixing Ability of a Thermophilic Sulfate-reducing Bacterium in the Genus Thermodesulfovibrio Isolated from a Terrestrial Hot Spring in Japan.Microbes and environments · 2025Article
- Chemolithoautotrophic diazotrophs dominate dark nitrogen fixation in mangrove sediments.The ISME journal · 2024Article
- Comparative analysis of bacterial diversity in two hot springs in Hefei, China.Scientific reports · 2023Article
- Temperature and Geographic Location Impact the Distribution and Diversity of Photoautotrophic Gene Variants in Alkaline Yellowstone Hot Springs.Microbiology spectrum · 2022Article
- Article
- Bacterial community structure in geothermal springs on the northern edge of Qinghai-Tibet plateau.Frontiers in microbiology · 2022Article
- Comparative Gut Microbiome inFrontiers in cellular and infection microbiology · 2022Article
- Sasso Pisano Geothermal Field Environment Harbours DiverseMicroorganisms · 2021Article
- In-Situ Metatranscriptomic Analyses Reveal the Metabolic Flexibility of the Thermophilic Anoxygenic Photosynthetic BacteriumMicroorganisms · 2021Article
- Exploring the taxonomical and functional profile of As Burgas hot spring focusing on thermostable β-galactosidases.Scientific reports · 2021Article
- Exploiting genetic diversity and gene synthesis to identify superior nitrogenase NifH protein variants to engineer NCommunications biology · 2021Article
- Comparative Metagenomic Analysis of Two Hot Springs From Ourense (Northwestern Spain) and Others Worldwide.Frontiers in microbiology · 2021Article
- Nitrogen-fixing Ability and Nitrogen Fixation-related Genes of Thermophilic Fermentative Bacteria in the Genus Caldicellulosiruptor.Microbes and environments · 2021Article
- Microorganisms and Their Metabolic Capabilities in the Context of the Biogeochemical Nitrogen Cycle at Extreme Environments.International journal of molecular sciences · 2020Review
- Cultivation Renaissance in the Post-Metagenomics Era: Combining the New and Old.Microbes and environments · 2019Article
- The Nitrogen Cycle: A Large, Fast, and Mystifying Cycle.Microbes and environments · 2019Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The phylum Aquificae comprises chemolithoautotrophic thermophilic to hyperthermophilic bacteria, in which the nitrogenase reductase gene (nifH) has been reported. However, nitrogen-fixing activity has not yet been demonstrated in members of this deeply branching bacterial phylum. We isolated two thermophilic diazotrophic strains from chemosynthetic microbial communities in slightly alkaline hot springs (≥70°C) in Nakabusa, Nagano Prefecture, Japan. A phylogenetic analysis based on 16S rRNA genes identified these strains as members of the genus Hydrogenobacter within Aquificae. Their NifH sequences showed 96.5 and 97.4% amino acid sequence identities to that from Hydrogenobacter thermophilus TK-6. Nitrogenase activity, measured by acetylene reduction, was confirmed in both strains at 70°C. These novel strains grew under semi-aerobic conditions by using CO
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