title: Bacteriohopanetetrol: abundant lipid in frankia cells and in nitrogen-fixing nodule tissue.
abstract: An unusual class of lipid with amphiphilic properties has been detected in nodule tissue of Alnus and Ceanothus. High levels of the same lipid (20-50% of total cell lipids) were detected in solvent extracts of Frankia spp. cells. However, the lipid was absent in host roots. The lipid was purified and quantified by high-performance liquid chromatography/flame ionization detector. Phenol-sulfuric acid determinations and proton nuclear magnetic resonance indicated that the purified lipid is not a glycolipid. Mass spectra of the predominant species are consistent with published spectra for bacteriohopanetetrol (C(35)H(62)O(4)), a pentacyclic triterpenoid, or hopanoid.
authors: Department of Environmental Horticulture, University of California, Davis, California 95616.
authors: A M
authors: AM
authors: Berry
authors: R A
authors: RA
authors: Moreau
authors: A D
authors: AD
authors: Jones