Organic solutes in hyperthermophilic Archaea

Martins, Ligia O. and Huber, Robert and Huber, Harald and Stetter, Karl O. and da Costa, Milton S. and Santos, Helena (1997) Organic solutes in hyperthermophilic Archaea. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 63 (3). pp. 896-902. ISSN 0099-2240, 1098-5336

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Abstract

We examined the accumulation of organic solutes under optimum growth conditions in 12 species of thermophilic and hyperthermophilic Archaea belonging to the Crenarchaeota and Euryarchaeota. Pyrobaculum aerophilum, Thermoproteus tenax, Thermoplasma acidophilum, and members of the order Sulfolobales accumulated trehalose. Pyrococcus furiosus accumulated di-myo-inositol 1,1' (3,3')-phosphate and beta-mannosylglycerate, Methanothermus fervidus accumulated cyclic-2,3-bisphosphoglycerate and beta-mannosylglycerate, while the only solute detected in Pyrodictium occultum was di-myo-inositol 1,1' (3,3') phosphate. Methanopyrus kandleri accumulated large concentrations of cyclic-2,3-bisphosphoglycerate. On the other hand, Archaeoglobus fulgidus accumulated three phosphorylated solutes; prominent among them was a compound identified as di-glycerol-phosphate. This solute increased in concentration as the salinity of the medium and the growth temperature were raised, suggesting that this compound sen es as a general stress solute. Di-myo-inositol-1,1'(3,3')-phosphate accumulated at supraoptimal temperature only. The relationship between the accumulation of unusual solutes and high temperatures is also discussed.

Item Type: Article
Uncontrolled Keywords: THERMOAUTOTROPHICUM DELTA-H; COMPATIBLE SOLUTES; METHANOGENIC ARCHAEBACTERIA; INOSITOL-PHOSPHATE; SP-NOV; ACCUMULATION; TREHALOSE; BACTERIA; DI-MYO-INOSITOL-1,1'-PHOSPHATE; HALOTOLERANCE
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie (Archaeenzentrum)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 11 May 2023 10:00
Last Modified: 11 May 2023 10:00
URI: https://pred.uni-regensburg.de/id/eprint/50982

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