POSITIONAL INFORMATION AND PATTERN FORMATION IN PLANT MORPHOGENESIS AND A MECHANISM FOR THE INVOLVEMENT OF PLANT HORMONES

I discuss the possibility of examining pattern formation and morphogenesis in plants in terms of the concept of positional information. Experiments performed on shoot, floral and root apices are interpreted in terms of the theory presented. A model for floral morphogenesis and the interaction of phyllotaxis and shoot morphogenesis is also presented. Finally, some genetic abnormalities of floral morphogenesis are discussed in terms of the main theme of the study. © 1979.