37.植物におけるPQQ生合成遺伝子の探索(口頭発表)

概要

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Pyrroloquinoline quinone (PQQ), an element first discovered as a novel cofactor in bacterial dehydrogenase, has been identified as an important player in improving reproductive performance in mammals and now recognized as a new vitamin. We demonstrated the existence of PQQ in model plant Arabidopsis thaliana grown in germ-free environments on MS agar plates and yeast by LC/MS/MS analysis. In addition, PQQ conferred distinct stress tolerance to Arabidopsis which grown on medium including salt. This effect of PQQ treatment on Arabidopsis stress tolerance was also observed in yeast. So, we have started the screening of PQQ-related mutants to find new PQQ biosyntheses genes in the plant.
2007-10-05