Spatial regulation of photosynthetic development in C4 plants

Trends Genet. 1991 Jun;7(6):191-6. doi: 10.1016/0168-9525(91)90435-s.


Leaf development in C4 plants requires the morphological and functional differentiation of two photosynthetic cell types (bundle sheath and mesophyll). Photosynthetic reactions are split between bundle sheath and mesophyll cells, with each cell type accumulating a specific complement of photosynthetic enzymes. Current evidence suggests that in order to activate this cell-specific expression of photosynthetic genes, bundle sheath and mesophyll cells must interpret positional information distributed locally around each vein.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Carbon Dioxide / metabolism
  • Cell Differentiation
  • Gene Expression Regulation, Enzymologic
  • Light
  • Models, Genetic
  • Morphogenesis
  • Phosphoenolpyruvate Carboxylase / metabolism
  • Photosynthesis*
  • Plant Development*
  • Plants / genetics
  • Ribulose-Bisphosphate Carboxylase / metabolism


  • Carbon Dioxide
  • Phosphoenolpyruvate Carboxylase
  • Ribulose-Bisphosphate Carboxylase