Assimilative and co-metabolic degradation of chloral hydrate by bacteria and their bioremediation potential Assimilative and co-metabolic degradation of chloral hydrate by bacteria and their bioremediation potential

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Author(s)

Abstract

Although the bacterial degradation of chloral hydrate (CH) has been recognized for several decades, its degradation pathway by assimilation has not been demonstrated. In this paper, we report the isolation of the LF54 bacterial strain, which utilizes CH as its sole carbon and energy source. LF54 converted CH into trichloroethanol (TCAol), which was dehalogenated to dichloroethanol (DCAol), and CO2 was detected as the end product. Another strain that we isolated, RS20, co-metabolized CH into TCAol. Our 16S rRNA gene sequencing and taxonomic analyses revealed that the LF54 and RS20 strains belong to the Pseudomonas and Arthrobacter genera, respectively. When the two strains were inoculated into soil microcosms, both degraded 0.3 mM CH to undetectable levels (< 0.01 mM) within 5 days. These results suggest that LF54 and RS20 could be used in the bioremediation of CH-contaminated environments.

Journal

  • Journal of bioscience and bioengineering

    Journal of bioscience and bioengineering 111(4), 448-453, 2011-04-25

    Elsevier B.V.

References:  28

Cited by:  1

Codes

  • NII Article ID (NAID)
    110008607501
  • NII NACSIS-CAT ID (NCID)
    AA11307678
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13891723
  • NDL Article ID
    11049183
  • NDL Source Classification
    ZP15(科学技術--化学・化学工業--醗酵・微生物工学)
  • NDL Call No.
    Z53-S65
  • Data Source
    CJP  CJPref  NDL  NII-ELS  IR  Crossref 
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