Cellular response of sinorhizobium sp. Strain A2 during arsenite oxidation

Koh Fukushima, He Huang, Natsuko Hamamura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Arsenic (As) is a widely distributed toxic element in the environment and microorganisms have developed resistance mechanisms in order to tolerate it. The cellular response of the chemoorganotrophic arsenite (As[III])-oxidizing α- Proteobacteria, Sinorhizobium sp. strain A2, to arsenic was examined in the present study. Several proteins associated with arsenite oxidase and As resistance were shown to be accumulated in the presence of As(III). A shift in central carbon metabolism from the tricarboxylic acid pathway to glyoxylate pathway was also observed in response to oxidative stress. Our results revealed the strategy of the As(III)-oxidizing Sinorhizobium strain to mitigate arsenic toxicity and oxidative damage by multiple metabolic adaptations.

Original languageEnglish
Pages (from-to)330-334
Number of pages5
JournalMicrobes and environments
Issue number4
Publication statusPublished - Dec 22 2015

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Soil Science
  • Plant Science


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