Fossil Membranes and Cell Wall Fragments from a 7000-Year-Old Black Sea Sediment
- 5 June 1970
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 168 (3936) , 1207-1208
- https://doi.org/10.1126/science.168.3936.1207
Abstract
Lamellar and tubular membranes and orgacnic fragments resemnbling bacterial cell walls were abundant in Black Sea sediments deposited between 3000 and 7000 years ago. This time period was marked by a gradual transition from a freshwater to a seawater environment. The resulting salinity gradient in the interstitial solutions probably promoted natural chromatography and dissolution, redeposition, and preservation of organic molecules. The preservation of organic structures may have resulted from the lack of dissolved oxygen, high concentrations of metal ions, and structural reorganization during compaction.Keywords
This publication has 5 references indexed in Scilit:
- Oceanographic expedition in the Black SeaThe Science of Nature, 1970
- THE TOPOGRAPHY OF THE BACTERIAL CELL WALLAnnual Review of Microbiology, 1969
- Macromolecular Subunits in the Walls of Marine Nitrifying BacteriaScience, 1969
- The mechanism of mitochondrial swellingArchives of Biochemistry and Biophysics, 1969
- A Thiococcus sp. nov. gen., its pigments and internal membrane systemArchiv für Mikrobiologie, 1967