Sequencing and Reverse Transcription-Polymerase Chain Reaction (RT-PCR) Analysis of Four Hydrogenase Gene Clusters from an Obligately Autotrophic Hydrogen-Oxidizing Bacterium, Hydrogenobacter thermophilus TK-6
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A thermophilic, chemolithoautotrophic hydrogen-oxidizing bacterium, Hydrogenobacter thermophilus TK-6, fixes carbon dioxide via the reductive tricarboxylic acid cycle and grows rapidly with a generation time of about 1 h. TK-6 is believed to have an efficient hydrogen-oxidizing ability to support such rapid growth. We cloned hydrogenase genes from TK-6 and found that this strain has at least four clusters of hydrogenase genes. Reverse transcription-polymerase chain reaction (RT-PCR) analyses showed that all four hydrogenase gene clusters were transcribed under aerobic condition at hydrogen concentrations of 45% and 60%. One of them was not transcribed at a hydrogen concentration of 20%. All the four hydrogenase gene clusters were expressed under anaerobic denitrifying condition at a hydrogen concentration of 75%.
- 社団法人 日本生物工学会の論文
社団法人 日本生物工学会 | 論文
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