Adaptive strategies in the double-extremophilic prokaryotes inhabiting soda lakes.

Abstract:

:Haloalkaliphiles are double extremophilic organisms thriving both at high salinity and alkaline pH. Although numerous haloalkaliphilic representatives have been identified among Archaea and Bacteria over the past 15 years, the adaptations underlying their prosperity at haloalkaline conditions are scarcely known. A multi-level adaptive strategy was proposed to occur in haloalkaliphilic organisms isolated from saline alkaline and soda environments including adjustments in the cell wall structure, plasma membrane lipid composition, membrane transport systems, bioenergetics, and osmoregulation. Isolation of chemolithoautotrophic sulfur-oxidizing γ-Proteobacteria from soda lakes allowed the elucidation of the structural and physiological differences between haloalkaliphilic (prefer NaCl) and natronophilic (prefer NaHCO3/Na2CO3, i.e. soda) microbes.

journal_name

Curr Opin Microbiol

authors

Banciu HL,Muntyan MS

doi

10.1016/j.mib.2015.05.003

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

73-9

eissn

1369-5274

issn

1879-0364

pii

S1369-5274(15)00054-5

journal_volume

25

pub_type

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