Axillary Bud Development in Pea: Apical Dominance, Growth Cycles, Hormonal Regulation and Plant Architecture

  • Joel P. Stafstrom


Apical meristems of the shoot and root are responsible for building the vegetative plant body. Precise patterns of cell division and differentiation at the shoot apex result in the iterative formation of modules or phytomers comprised of a leaf, an axillary bud, a node and an internode (Sussex, 1989). Axillary bud meristems have the same potential for growth and development as the terminal meristem; however, most buds remain dormant and never realize this potential. As any gardener or keeper of house plants knows, removing the terminal bud promotes the growth of dormant axillary buds and gives rise to bushier plants. Control of axillary bud growth by the terminal bud is called apical dominance.


Apical Dominance Ribosomal Protein Gene Auxin Content Terminal Meristem Transgenic Petunia Plant 
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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Joel P. Stafstrom
    • 1
  1. 1.Plant Molecular Biology Center and Department of Biological SciencesNorthern Illinois UniversityDeKalbUSA

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