00453naa a2200145 a 450000100080000000500110000800800410001910000190006024501120007926000090019165000110020065300230021170000190023477300540025318376182012-07-25       1976    bl ---       0--  u    #d1 aDUNWELL, J. M.  aPollen ultrastructure in anther cultures of Datura innoxia. I. Division of the presumptive vegetative cell.  c1976  aPólen  aCultura de anteras1 aSUNDERLAND, N.  tJournal of Cell Sciencegv. 22, p. 469-480, 1976.