IMR Press / FBL / Volume 9 / Issue 5 / DOI: 10.2741/1447

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with Frontiers in Bioscience.

Sensing and adapting to environmental stress: the archaeal tactic
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1 Istituto di Biostrutture e Bioimmagini , C.N.R., Via Mezzocannone 6, 80134, Napoli, Italy
2 Dipartimento di Chimica Biologica, Università degli Studi di Napoli Federico II, Via Mezzocannone 16-80134, Napoli, Italy
Front. Biosci. (Landmark Ed) 2004, 9(5), 2909–2926;
Published: 1 September 2004

Archaea occupy a considerable diversity of niches encompassing extreme environments with extreme of pH, salinity and temperature that cannot be tolerated by other forms of life. Survival and colonisation requires the capacity to sense, and adapt to environmental change. In this review we consider the issues of adaptation to environmental stresses, in particular the mechanisms that might be employed by different Archaea to respond to the specific challenges of their particular niche. We lay emphasis on the strategies adopted to respond to oxidative and chemical stress. In particular, this paper reviews major key points in the generation of reactive oxygen species in Archaea, defense mechanisms and genetic responses to oxidative stress. Finally, we discuss complex biological response mechanisms to chemical damage with particular attention to detoxification from metals and drugs.

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