Lipids as a principle for the identification of ArchaebacteriaThe 'Archaebacteria' consist of several distinct subgroups including methanogens, extreme halophiles and specific thermoacidophiles. These bacteria are distinct from other bacteria with respect to their characteristic RNA compositions, the absence of muramic acid in the cell walls and the predominance of nonsaponifable lipids. The lipid composition of the Archaebacteria consists of isoprenoid and hydroisoprenoid hydrocarbons and isopranyl glycerol ether lipids. The pathways for the biosynthesis of the lipid components are those shared by most microorganisms and demonstrate a close relationship; however, an independent line of descent is indicated by the formation of the isopranyl glycerol ether lipids. This discontinuity formulates a point for delineating the early stages of biological evolution and for dividing bacteria into two subgroups.
Document ID
19800065893
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Tornabene, T. G. (Colorado State Univ. Fort Collins, CO, United States)
Lloyd, R. E. (Colorado State University Fort Collins, Colo., United States)
Holzer, G. (Colorado State Univ. Fort Collins, CO, United States)
Oro, J. (Houston, University Houston, Tex., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Life Sciences (General)
Meeting Information
Meeting: Life sciences and space research. Volume 18