IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Long chain glycolipids with pentose head groups as biomarkers for marine endosymbiotic heterocystous cyanobacteria
Bale, N.; Hopmans, E.C.; Zell, C.; Sobrinho, R.; Kim, J.H.; Sinninghe Damsté, J.S.; Villareal, T.A.; Schouten, S. (2015). Long chain glycolipids with pentose head groups as biomarkers for marine endosymbiotic heterocystous cyanobacteria. Org. Geochem. 81: 1-7. dx.doi.org/10.1016/j.orggeochem.2015.01.004
In: Organic Geochemistry. Elsevier: Oxford; New York. ISSN 0146-6380, more
Peer reviewed article  

Available in Authors 

Author keywords
    Heterocyst glycolipids; Endosymbioticheterocystous cyanobacteria; Amazon River; Floodplain lakes

Authors  Top 
  • Kim, J.H., more
  • Sinninghe Damsté, J.S., more
  • Villareal, T.A.
  • Schouten, S., more

Abstract
    Marine endosymbiotic heterocystous cyanobacteria make unique heterocyst glycolipids (HGs) containing pentose (C5) moieties. Functionally similar HGs with hexose (C6) moieties found in free-living cyanobacteria occur in the sedimentary record, but C5 HGs have not been documented in the natural environment. Here we developed a high performance liquid chromatography multiple reaction monitoring (MRM) mass spectrometry (HPLC–MS2) method specific for trace analysis of long chain C5 HGs and applied it to cultures of Rhizosolenia clevei Ostenfeld and its symbiont Richelia intracellularis which were found to contain C5 HGs and no C6 HGs. The method was then applied to suspended particulate matter (SPM) and surface sediment from the Amazon plume region known to harbor marine diatoms carrying heterocystous cyanobacteria as endosymbionts. C5 HGs were detected in both marine SPM and surface sediments, but not in SPM or surface sediment from freshwater settings in the Amazon basin. Rather, the latter contained C6 HGs, established biomarkers for free-living heterocystous cyanobacteria. Our results indicate that the C5 HGs may be potential biomarkers for marine endosymbiotic heterocystous cyanobacteria.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors