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The evolutionary relationship between stomatal mechanism, crassulacean acid metabolism and C₄ photosynthesis
- COCK BURN, W.
- Plant, cell and environment 1981 v.4 no.6 pp. 417-418
- C3 plants, C4 photosynthesis, Crassulacean acid metabolism, guard cells
- All of the features of crassulacean acid metabolism (CAM) and most characteristics of C₄ photosynthesis are exhibited by stomatal guard cells. It is proposed that CAM and possibly also C₄ photosynthesis result from the expression in photosynthetic cells of genetic information which is expressed only in guard cells of C₃ plants.