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. 1988 Jul;170(7):3213–3216. doi: 10.1128/jb.170.7.3213-3216.1988

Absence of a characteristic cell wall lipopolysaccharide in the phototrophic bacterium Chloroflexus aurantiacus.

J Meissner 1, J H Krauss 1, U J Jürgens 1, J Weckesser 1
PMCID: PMC211271  PMID: 3384807

Abstract

Two strains of the gliding phototrophic bacterium Chloroflexus aurantiacus were investigated for the presence of lipopolysaccharide (LPS). With both strains, all fractions of hot phenol-water extracts and the extracted cell residues from whole cells or cell homogenates were found to be free from characteristic LPS constituents, such as 3-hydroxy fatty acids, 2-keto-3-deoxyoctonate, heptoses, or O-chain sugars. Phenolchloroform-petroleum ether extracts were also free from precipitable LPS. A lipid A fraction could not be obtained, and there was no hint for glucosamine as a possible lipid A backbone amino sugar. Absence of LPS was confirmed by sodium deoxycholate gel electrophoresis.

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Selected References

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