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›› 2018, Vol. 35 ›› Issue (4): 473-480.DOI: 10.7523/j.issn.2095-6134.2018.04.008

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Reactive oxygen species accumulation induced by D-amino acid in Saccharomyces cerevisiae

LIU Qingju, HE Yujian, WU Li, LI Xiangjun   

  1. School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
  • Received:2017-03-20 Revised:2017-05-16 Online:2018-07-15

Abstract: D-amino acids occur widely in food. Reactive oxygen species accumulation and biochemical damage caused by D-amino acids to Saccharomyces cerevisiae are evaluated. The results show that cell growth is inhibited and level of H2O2 increases after exposure to D-amino acids, which leads to high levels of catalase and peroxidase activities. All these facts suggest that hydrogen peroxide is the main ROS induced by D-amino acids and oxidative damage is the primary mechanism by which D-amino acids exert toxic effect on Saccharomyces cerevisiae cells.

Key words: D-amino acid, Saccharomyces cerevisiae, reactive oxygen species, hydrogen peroxide

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