cytokinin


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Related to cytokinin: abscisic acid, Gibberellins

cytokinin

[¦sīd·ō′kī·nən]
(biochemistry)
Any of a group of plant hormones which elicit certain plant growth and development responses, especially by promoting cell division.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
These reports suggest that shoot regeneration using purine based cytokinins alone or in combination with auxins gave better results.
As for the media supplemented with a single cytokinin in combination with 0.5 [micro]M IBA and 50 [micro]M ADS, high level of callus formation was again observed for both the leaf blade and petiole explants and shoot bud formation was observed only in the medium containing BAP and TDZ.
Effect of cytokinins. The excised cormlets were transferred aseptically in MS medium supplemented with different concentrations (1.00, 1.50, 2.00, 2.50, 3.00, 3.50, 4.00, 4.50 and 5.00 mg/l) of BAP for single shoot regeneration.
TABLE 3: Effects of different concentrations and combinations of cytokinin and auxin on shoot production from two different sources of explants in yellow C.
1993, Kinet 1993), however, cytokinins in combination with Auxins may promote in vitro flowering reported earlier (Naor et al.
The better cytokinin was still BAP, which produced the highest proliferation rate (75%) at 0.6 [micro]M.
Increased seed cytokinin levels in transgenic tobacco influence embryo and seeding development.
Thus far, three key hormones have been identified in these studies: abscisic acid and ethylene, which usher in dormancy; and cytokinins, which stop it so sprouting can begin.
The hormones accumulating in infected plant cells were identified as [beta]-indoleacetic acid (IAA) in 1937, and a cell-division factor were later identified as a cytokinin (Link et al., 1937).