Sweet discovery in leafy greens

摘要

Ten billion tonnes of the sulfur-containing sugar sulfoquinovose (SQ) are produced annually by photosynthetic organisms. The amount of sulfur in this sugar rivals that used in the total annual biosynthesis of the essential amino acids cysteine and methionine. As such, SQ plays a critical part in the cycling of sulfur in the biosphere. The major form of SQ is a sulfolipid called sulfoquinovosyl diacylglyceride (SQDG).