The Effects of Kinetin, Gibberellic Acid, and Light on Expansion and Cell Division in Leaf Disks of Dwarf Bean (Phaseolus vulgaris)
The Effects of Kinetin, Gibberellic Acid, and Light on Expansion and Cell Division in Leaf Disks of Dwarf Bean (Phaseolus vulgaris)
- Journal of Experimental Botany, 11(1), p.81-85, 1960 .
The effects of kinetin (Kn), gibberellic acid (G), and light (L)on cell expansion and division in disks from 6-day-old etiolated primary leaves of dwarf bean are described. Cell number was determined by direct counting after disks were digested in a pectinase/EDTA mixture to separate the cells. Kn increased leaf expansion wholly by increasing cell size. G also increased cell size; it increased cell division in the dark but not in the light. Light also increased cell size and cell division; it eliminated the effect of G on cell division but enhanced the effect of G on cell expansion.
The effects of kinetin (Kn), gibberellic acid (G), and light (L)on cell expansion and division in disks from 6-day-old etiolated primary leaves of dwarf bean are described. Cell number was determined by direct counting after disks were digested in a pectinase/EDTA mixture to separate the cells. Kn increased leaf expansion wholly by increasing cell size. G also increased cell size; it increased cell division in the dark but not in the light. Light also increased cell size and cell division; it eliminated the effect of G on cell division but enhanced the effect of G on cell expansion.