Abstract
The paper reports the structural study of the lipopolysaccharide from the type strain of the soil nitrogen-fixing bacterium Azospirillum rugosum isolated from oil-polluted soils. Based on the chemical analysis and 1D- and 2D 1H and 13С NMR spectroscopy data it has been demonstrated that the O-specific polysaccharide consists of the two types of repeating units identical to those previously described for the O-specific polysaccharide of the Azospirillum brasilense strain Jm125A2. Structural analysis of the lipid A using gas-liquid chromatography (GLC) and MALDI mass spectrometry revealed the presence of penta-, tetra-, and triacylated species. The primary fatty acids in the lipid A are the N-linked 16:0(3-OH) and О-linked 14:0(3-OH). Microheterogeneity within each species arises from the presence of different secondary fatty acids (16:0, 18:1, or 19:0) acylating the 16:0(3-OH) acid of the distal GlcN ring.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
