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Short communication. Serine: glyoxylate aminotransferase exerts no control on photosynthesis.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>05/1999
<mark>Journal</mark>Journal of Experimental Botany
Issue number334
Number of pages4
Pages (from-to)719-722
Publication StatusPublished
<mark>Original language</mark>English


A barley (Hordeum vulgare L.) mutant deficient in serine:glyoxylate aminotransferase (SGAT) was crossed with wild-type plants to generate heterozygous mutants. Plants of the F2 generation with reduced SGAT activities (45-60% of wild-type activities) contained proportionally less SGAT protein. Reduced SGAT activities resulted in the accumulation of serine and, to a smaller extent, of glycine, indicating that the flux through the photorespiratory pathway was restricted. Rates of photosynthesis were, however, not affected by the reduction in SGAT activity.