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J Bacteriol. Nov 1989; 171(11): 6383–6386.
PMCID: PMC210518

Trehalose accumulation in vegetative cells and spores of Myxococcus xanthus.


The disaccharide trehalose is found in the spores and cysts of a variety of organisms. We analyzed developing cells of Myxococcus xanthus for trehalose accumulation. Vegetative cells grown in media with low osmotic strengths contained less than 5 micrograms of trehalose per mg of protein. Spores formed in fruiting bodies accumulated up to 1,100 micrograms of trehalose per mg of protein. Spores formed in liquid culture following the addition of glycerol contained up to 300 micrograms of trehalose per mg of protein. The trehalose contents of both spore types decreased rapidly during the early stages of germination. Trehalase activity was not detected in extracts of dormant or germinating spores. Trehalose accumulation in M. xanthus was also associated with elevated osmotic strength. Vegetative cells accumulated up to 214 micrograms of trehalose per mg of protein when grown in media containing elevated levels of solutes.

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Selected References

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