Differentiation of the ray system in woody plants

  title={Differentiation of the ray system in woody plants},
  author={Simcha Lev-Yadun and Roni Aloni},
  journal={The Botanical Review},
The regulation of vascular ray differentiation has received limited attention, despite the fact that vascular rays constitute an important part of the secondary body of plants. In this paper we review developmental aspects of the ray system and suggest a general hypothesis for the regulation of ray differentiation and evolution. In studies of ray differentiation, two basic factors should be taken into consideration: 1) the normal gradual increase in ray size in relation to age, distance from… CONTINUE READING
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