Du är här

Possible roles of reactive chlorine II: assessing biotic chlorination as a way for organisms to handle oxygen stress.

Författare:
Publiceringsår: 2013
Språk: Engelska
Sidor: 991-1000
Publikation/Tidskrift/Serie: Environmental microbiology
Volym: 15
Nummer: 4
Dokumenttyp: Artikel
Förlag: Wiley Blackwell

Sammanfattning

Natural formation of organically bound chlorine is extensive in many environments. The enzymes associated with the formation of chlorinated organic matter are produced by a large variety of organisms. Little is known about the ecological role of the process, the key question being: why do microorganisms promote chlorination of organic matter? In a recent paper we discuss whether organic matter chlorination may be a result of antagonistic interactions among microorganisms. In the present paper we evaluate whether extracellular microbial formation of reactive chlorine may be used as a defence against oxygen stress, and we discuss whether this process is likely to contribute to the formation of chlorinated organic matter. Our analysis suggests that periodic exposure to elevated concentrations of reactive oxygen species is a common denominator among the multitude of organisms that are able to enzymatically catalyse formation of reactive chlorine. There is also some evidence suggesting that the production of such enzymes in algae and bacteria is induced by oxygen stress. The relative contribution from this process to the extensive formation of chlorinated organic matter in natural environments remains to be empirically assessed.

Disputation

Nyckelord

  • Biology and Life Sciences

Övriga

Published
  • BECC
Yes
  • Microbial Ecology
  • ISSN: 1462-2920
  • ISSN: 1462-2912

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

 

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen