THE PLANT SULFOLIPID. IDENTIFICATION OF 6-SULFO-QUINOVOSE¹

What role does sulpholipid play within the thylakoid membrane?

“…It was the availability and use of [~5S]-sulphate that led to its identification and allowed for its subsequent analysis. Studies on its degradation products [18] revealed that deacylation yielded sulphoquinovosylglycerol which exhibited a molecular rotation [M]2SD of +31 000 °, characteristic of alkyla-D-glucopyranosides. In addition, its rotational shift in cupra B of --370 ° indicated three adjacent equatorial hydroxyl groups as in glucosides [46].…”

STM and DFT Investigations of Isolated Porphyrin on a Silicon‐Based Semiconductor at Room Temperature

“…The occurrence of SQDGs (1,2‐di‐ O ‐acyl‐3‐ O ‐(6'‐deoxy‐6′‐sulfo‐( α )‐D‐glycopyranosyl)‐ sn ‐glycerols)3–5 as the most important representative sulfoglycolipid could be proved in the microalgae Nitzschia alba ,6 Pavlova lutheri ,7 Chlorella vulgaris ,8 Heterosigma carterae ,9 and Porphyridium cruentum 10…”

Some observations on the biosynthesis of the plant sulpholipid by Euglena gracilis

“…first showed that 35S in the form of 35SO42was rapidly incorporated into the lipids of green algae, photosynthetic bacteria and the leaf tissue of many higher plants. The structure of the sulpholipid involved was eventually shown to be 6-deoxy-6-sulpho-ao-Dglucopyranosyl diglyceride [6-sulpho-OC-D-quinovosyl diglyceride (I) (Daniel et al 1961)]. The major fatty acid components are palmitic acid and linolenic acid (O'Brien & Shibuya, 1964).…”