Fig 1.
Distribution of hydrocarbons in the Baltic Sea cyanobacteria Dolichospermum, Aphanizomenon and Nodularia.
Fig 2.
Distribution of FAMEs in Baltic Sea cyanobacteria belonging to the genera Dolichospermum, Aphanizomenon and Nodularia.
Fig 3.
Composite mass chromatograms showing the distribution of heterocyst glycolipids (HGs) in Baltic Sea cyanobacteria.
Fig 4.
Relative abundance of heterocyst glycolipids (HGs) in Baltic Sea cyanobacteria.
Fig 5.
Relative abundance of bacteriohopanepolyols (BHPs) in Baltic Sea cyanobacteria.
Strains 315, BIR53 and BIR169 belong to the genus Dolichospermum, while strain TR183 is representative of the genus Aphanizomenon. Note that no BHPs were detected in strains of the genus Nodularia. BHT CE = BHT cyclitol ether; BHT G = BHT glucosamine; guanidine BHT CE = guanidine substituted BHT cyclitol ether; guanidine BHT G = guanidine substituted BHT glucosamine.
Fig 6.
Correspondence analysis of the various lipid classes present in Baltic Sea cyanobacteria.
Distribution patterns of (a) whole cell lipid distributions, (b) hydrocarbons, (c) fatty acid methyl esters, (d) bacteriohopanepolyols and (e) heterocyst glycolipids in the three genera of heterocystous cyanobacteria investigated. Dots indicate position of individual lipid biomarkers in relation to Aphanizomenon (square), Dolichospermum (triangles) and Nodularia (diamonds). Ellipses group the different genera of heterocystous cyanobacteria; Aphanizomenon (yellow), Dolichospermum (red) and Nodularia (blue).