Osmoadaptation in archaea
Article Abstract:
Archaea employ the same general approaches in adapting to increased osmotic stress as eubacterial and eukaryotic organisms, but they are remarkable for the unusual organic osmolytes accumulated. Among these unique osmolytes are inorganic ions, salt-tolerant enzymes as well as organic solutes such as sugars and polyhydric alcohols, alpha-amino acids and derivatives, beta-amino acids and derivatives, and miscellaneous osmolytes such as cyclic-2,3-diphosphoglycerate and 1,3,4,6-tetracarboxyhexane. Some of the biosynthetic pathways or uptake systems for osmolytes are discussed.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Organic thiols as organolithotrophic substrates for growth of phototrophic bacteria
Article Abstract:
The growth of phototrophic bacteria in Rhodopseudomonas sp. strainBB1 and in Thiocapsa roseopersicina were investigated. High-performance liquid chromatography was used to assay the organic acids. Isolates obtained with media containing malate and sulfide were used to study the metabolism of thiol enrichments. Results indicate that photoorganotrophic growth occured for Rhodopseudomonas but not in T. roseopersicina.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
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