In recently, development of the energy not to use the fossil fuel has been demanded, and hydrogen attracts attention as a clean energy. However, some problems are left about H2 manufacturing method. The final aim in this study is to obtain hydrogen-producing bacteria having high hydrogen-producing ability. As a pre-stage, we searched bacteria that produce hydrogen by metagenomic analysis for microorganism in hot spring water as one of search sources. 3 samples of hot spring water in Kanagawa

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... 6 samples in Shizuoka were analyzed for hydrogen-producing bacteria. As a result, two hydrogen-producing bacteria were detected in the hot spring water in Shizuoka.