Biology
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ijasb...1..357p&link_type=abstract
International Journal of Astrobiology, vol. 1, Issue 04, p.357-363
Biology
Calcification, Cyanobacteria, Raman, Scytonemin.
Scientific paper
A study of Rivularia stromatolites demonstrated seasonal and non-seasonal banding patterns of calcification, ‘sun-screen’ scytonemin pigment and nitrogen-fixing heterocysts. Calcification was controlled by seasonal events with abiogenic ‘winter’ deposition and biogenic ‘summer’ deposition. Scytonemin was produced as a series of complex bands, probably as a response to summer Atlantic weather systems. Its production was also correlated in part with the appearance of heterocysts. The heterocysts were produced in bands, the pattern of which was probably controlled by an internal regulatory system. Raman spectra of modern and ancient (up to 4000 year old) Rivularia showed that scytonemin and carotenoid pigment can persist in dried material for >100 yr. The 4000 year old fossils did not reveal any useful biomarkers.
Edwards Howell G. M.
Pentecost Allan
No associations
LandOfFree
Raman spectroscopy and light microscopy of a modern and sub-fossil microstromatolite: Rivularia haematites (cyanobacteria, Nostocales) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Raman spectroscopy and light microscopy of a modern and sub-fossil microstromatolite: Rivularia haematites (cyanobacteria, Nostocales), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raman spectroscopy and light microscopy of a modern and sub-fossil microstromatolite: Rivularia haematites (cyanobacteria, Nostocales) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1425249