1. Thornber, J.P. (1986) in Enc. Plant Physiol. New Series 19, (Steahelin, L.A. and Arntzen, C.J. eds.) pp. 98–142, Springer-Verlag, Berlin
2. Bennet, J. (1983) Biochem. J. 212, 1–13
3. Andersson, B. and Anderson, J.M. (1985) in Modem Methods of Plant Analysis, New Series I, (Linskens, H.F. and Jackson J.F. eds.) pp. 231–258, Springer-Verlag, Berlin
4. Dunsmuir, P. Smith, S.M. and Bedbrook, J. (1983) J. Mol. Appl. Genet. 2, 285–300
5. Grossman, A. Bartlett, S. and Chua, N-H. (1980) Nature (Lond.) 285, 625–628