[1] Univ Leeds, Sch Biol, Leeds LS2 9JT, W Yorkshire, England
[2] Commissariat Energie Atom, Direct Sci Vivant, Serv Bioenerget, F-91191 Gif Sur Yvette, France
[3] INRA, CNRS, UMR 5004 Agro M, Biochim & Physiol Mol Plantes,UM2, F-34060 Montpellier, France
[4] Tel Aviv Univ, Dept Plant Sci, IL-69978 Tel Aviv, Israel