Differentiation of the tapetum in Avena. I. The cell surface.

  title={Differentiation of the tapetum in Avena. I. The cell surface.},
  author={Martin W. Steer},
  journal={Journal of cell science},
The development of the tapetal cell surface and associated structures in Avena has been followed from cell formation to senescence. Plasmodesmata initially connect the tapetal cells to each other, the pollen mother cells, and the inner loculus wall cells. These connexions are subsequently severed, those to the sporogenous cells being broken first at the pollen mother cell surface during callose wall formation. Loss of cellulose from the tapetal walls was followed using the decline in the… CONTINUE READING