| Citation | Distinguished for his work in plant biochemistry, particularly for his contribution to the elucidation of the C4-pathway of photosynthesis. Following early evidence suggesting a process of photosynthetic Co2 fixation differing from the Calvin cycle (Kortshak, Hartt and Burr, 1965), Hatch and collaborators made the major contribution in establishing the C4-pathway in photosynthesis, showing it to occur in a wide variety of species. They elucidated the mechanism, identified the enzymes (implicating eleven out of the twelve now known to have special roles) and showed that the C4-pathway functions to concentrate CO2 in bundle sheaths prior to its assimilation in the Calvin cycle. He has also contributed significantly to our understanding of glycolysis and of sucrose metabolism. |