PMID: 8955280Dec 1, 1996Paper

Mannitol, a novel bacterial compatible solute in Pseudomonas putida S12

Journal of Bacteriology
E P KetsH J Heipieper

Abstract

The aim of this study was to identify the compatible solutes accumulated by Pseudomonas putida S12 subjected to osmotic stress. In response to reduced water activity, P. putida S12 accumulated Nalpha-acetylglutaminylglutamine amide (NAGGN) simultaneously with a novel compatible solute identified as mannitol (using 13C- and 1H-nuclear magnetic resonance, liquid chromatography-mass spectroscopy and high-performance liquid chromatography methods) to maximum concentrations of 74 and 258 micromol g (dry weight) of cells(-1), respectively. The intracellular amounts of each solute varied with both the type and amount of osmolyte applied to induce osmotic stress in the medium. Both solutes were synthesized de novo. Addition of betaine to the medium resulted in accumulation of this compound and depletion of both NAGGN and mannitol. Mannitol and NAGGN were accumulated when sucrose instead of salts was used to reduce the medium water activity. Furthermore, both compatible solutes were accumulated when glucose was substituted by other carbon sources. However, the intracellular quantities of mannitol decreased when fructose, succinate, or lactate were applied as a carbon source. Mannitol was also raised to high intracellular concentrations ...Continue Reading

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Citations

Feb 25, 2010·Applied Microbiology and Biotechnology·Vicente MonederoMaría J Yebra
Jan 23, 2013·Microbial Biotechnology·Jonathan A CrayJohn E Hallsworth
Jul 27, 2005·Proceedings of the National Academy of Sciences of the United States of America·Helene FeilSteven E Lindow
Dec 21, 2010·Applied and Environmental Microbiology·Britta SeipMatthias Kurz
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Nov 28, 2015·Current Genetics·Prashanth BhagannaJohn E Hallsworth
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Jun 25, 2016·Applied Microbiology and Biotechnology·Nageena Zahid, Uwe Deppenmeier
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