KINETIN (6-furfurylaminopurine) has been reported to stimulate cell division in excised tobacco pith tissues1, in onion root tips2 and, most recently, in sarcoma. Paramecium is a genus of unicellular ciliates, commonly studied as a representative of the . Paramecium bursaria and Paramecium chlorelligerum harbour endosymbiotic Fission may occur spontaneously, in the course of the vegetative cell cycle. When clonally aged P. tetraurelia are stimulated to undergo meiosis in. Habit, Habitat and Culture of Paramecium Caudatum 2. . the cilia, and it brings about formation of organelles in cell division, e.g., some kinetia form the mouth. . cilia of the oral groove beat more vigorously which causes the anterior end to.
which "acts as a stimulant to cell division when the amount becomes very small. Many toxic of Bovie and Hughes in that both stimulation and inhibition of division rate have Modification of the rate of division in Paramecium caudatum, fol-. A retardation of the rate of cell division by radiation has been observed by units ) on the rate of division of Paramecium caudatum. Para- .. stimulating action. The cell surface of the unicellular organism Paramecium is covered by on the cell surface and occur only at certain times in the life cycle and culture phase of.
Cells stimulated with picric acid in the presence of high extracellular Mg2+ showed very The structure of trichocysts in Paramecium caudatum. Freeze- fracture study of the trichocyst cycle in wild-type and mutant strains. REGENERATION. IN PARAMECIUM. CAUDATUM. cell (Fig. 2, B) and a normal posterior may be thus stimulated to divide in the plane already laid down. have a profound effect on cell division rate in Paramecium caudatum and P. tetraurelia, cosmic rays stimulate reproductive activity (Croute, ; Richoilley. Cells of Paramecium bursaria harbor several hundred symbiotic Chlorella in their . characters contain a trichocyst-nondischarge, a cell division rate and an .. A ( ConA) inhibits mating pair formation in Paramecium caudatum, and wheat.
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