A novel sulfonolipid in diatoms.
A new sulfonolipid has been isolated from a non-photosynthetic diatom, Nitzschia alba, by thin-layer and column chromatography on silicic acid, and characterized by 35S-labeling, mobility on thin-layer chromatography, infrared and NMR spectroscopy and products of hydrolysis, as a ceramide sulfonic acid (N-acyl sphingosine-1-sulfonic acid). The long-chain base moiety was shown by identification of the products of periodate or periodate-permanganate oxidation to consist of a C18-trans-sphingosine backbone linked directly by a C-S linkage through C1 to a SO3 group. The N-acyl groups were mainly isoheptadecanoic (64%) and palmitic (26%) acids.
D002518:Ceramides / Q000032:analysis; D056890:Eukaryota / Q000032:analysis*; D008055:Lipids / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D013450:Sulfones / Q000032:analysis*
D002518:Ceramides; D008055:Lipids; D013450:Sulfones