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Please use this identifier to cite or link to this item: http://www.erepo.iihr.ernet.in/handle/123456789/62

Title: Thidiazuron: A potent regulator of in vitro plant morphogenesis.
Authors: B. N. S. Murthy
S. J. Murch
Praveen K. Saxena
Keywords: Thidiazuron
Issue Date: 2005
Citation: B. N. S. Murthy, S. J. Murch and Praveen K. Saxena. Thidiazuron: A potent regulator of in vitro plant morphogenesis.In Vitro Cellular & Developmental Biology - Plant , VOLUME 34, NUMBER 4, 267-275
Abstract: TDZ (N-phenyl-N’-1,2,3-thidiazol-5-ylurea) is a substituted phenylurea compound which was developed for mechanized harvesting of cotton bolls and has now emerged as a highly efficacious bioregulant of morphogenesis in the tissue culture of many plant species. Application of TDZ induces a diverse array of cultural responses ranging from induction of callus to formation of somatic embryos. TDZ exhibits the unique property of mimicking both auxin and cytokinin effects on growth and differentiation of cultured explants, although structurally it is different from either auxins or purine-based cytokinins. A number of physiological and biochemical events in cells are likely to be influenced by TDZ, but these may or may not be directly related to the induction of morphogenic responses, and hence, the mode of action of TDZ is unknown. However, the recent approaches applied to study the morphogenic events initiated by TDZ are clearly beginning to reveal the details of a variety of underlying mechanisms. Various reports indicate that TDZ may act through modulation of the endogenous plant growth regulators, either directly or as a result of induced stress. The other possibilities include the modification in cell membranes, energy levels, nutrient uptake, or nutrient assimilation. In this review, several of these possiblities are presented and discussed in light of recently published studies on characterization of TDZ-induced morphogenic effects.
URI: http://hdl.handle.net/123456789/62
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