Back to Search
Start Over
Blurring the Boundary between Bio- and Geohopanoids: Plakohopanoid, a C32-Biohopanoid Ester from Plakortis cf. lita
- Publication Year :
- 2012
-
Abstract
- Plakohopanoid (3a), a new type of hopanoid derivative composed of a C32 hopanoid acid ester linked to a mannosyl-myo-inositol, was isolated from the sponge Plakortis cf. lita as its peracetyl derivative 3b. The structure of 3b was determined by a combination of spectroscopic analysis and micro-scale chemical degradation. Even though plakohopanoid was isolated from a sponge, its component parts are clearly of bacterial origin, and its bacterial biosynthesis is very likely. Until now, C32 hopanoic acids have been considered to be geohopanoids, i.e., diagenetic products that are formed through abiotic degradation of the biohopanoids present in bacteria. The presence of 3a in a marine living organism shows that there is a biosynthetic pathway to C32 hopanoic acids, and these substances should therefore no longer with certainty be considered to be geohopanoids.
- Subjects :
- biology
010405 organic chemistry
Stereochemistry
Organic Chemistry
010402 general chemistry
biology.organism_classification
01 natural sciences
Hopanoids
Terpenoid
0104 chemical sciences
Sponge
chemistry.chemical_compound
Abiotic degradation
chemistry
Biosynthesis
Organic chemistry
Physical and Theoretical Chemistry
Bacteria
Derivative (chemistry)
Chemical decomposition
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....6001fd764768ac4d91cddeafcfde4aea