. Colchicine in agriculture, medicine, biology, and chemistry. Colchicine; Colchicine. Fig. —Pollen mother cells of Tradescantia palludosa. Confrol and treated cultures. A. Untreated microspore. B. Univalents induced by colchicine. C. Desynaptic metaphases, four days after treatment was made. D. Diploid microspore from a treatment that be- came effective at the second meiotic division. E. Octoploid microspore 21 days after treatment; time of treatment 48 hours, then time allowed for recovery, two meiotic di- visions inhibited, and one premeiotic c-mitosis. F. Tetraploid microspore, 12 days
. Colchicine in agriculture, medicine, biology, and chemistry. Colchicine; Colchicine. Fig. —Pollen mother cells of Tradescantia palludosa. Confrol and treated cultures. A. Untreated microspore. B. Univalents induced by colchicine. C. Desynaptic metaphases, four days after treatment was made. D. Diploid microspore from a treatment that be- came effective at the second meiotic division. E. Octoploid microspore 21 days after treatment; time of treatment 48 hours, then time allowed for recovery, two meiotic di- visions inhibited, and one premeiotic c-mitosis. F. Tetraploid microspore, 12 days after treatment. G. Hexaploid microspore, an unequal division that is similar to a distributed c-mitosis. (After Walker). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Eigsti, O. J. (Orie Jacob), 1908-; Dustin, Pierre. Ames, Iowa State College Press
Size: 2051px × 1219px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
