Plant-growth regulators Gibberellins

Uses Plant growth regulator gibberellin inhibitor... 

Haddon, and M. M. Fitch. Identification of gibberellins from sugar cane SO 102 plants. ] Plant Growth Regul 1983 ... 

Until other gibberellins %80) can be either fermented or synthesized in bulk, their future is uncertain for use as industrial plant growth regulators except in very special circumstances. 

Gibberellic acid and related compounds, referred to genetically as gibberellins, form another class of naturally occurring, plant-growth regulators... 

Bukovac, M. J., Wittwer, S. H.. Comparative Biological Activities of the Gibberellins in Plant Growth Regulation (Proc. of IVth International Conf. on Plant Growth Regulation), Iowa State University Press, Ames, Iowa, in press. 

Sumiki, Y., Kawarada, A. "Occurrence of gibberellin A] in the water sprouts of Citrus," in "Plant Growth Regulation," IVth International Conference on Plant Growth Regulation, Klein, R.M., Ed., The Iowa State University Press, 1961,... 

Graebe, J.E., Hedden, P. "Biosynthesis of gibberellins in a cell-free system." In "Biochemistry and Chemistry of Plant Growth Regulators," Schreiber, K., Schutte, H.R., Sembdner,... 

Fhinney, B.O. "Dwarfing genes in Zea mays and their relation to the gibberellins." In Plant Growth Regulation,... 

Ancymidol is classified as a plant growth regulator and has a wide application. It is taken up and translocated in the phloem and inhibits internode elongation by inhibiting the CYP enzyme in the biosynthetic pathway of gibberellins. The structures of the three above-mentioned compounds are reasonably similar ... 

Coolbaugh, R.C. (1997). Cytochrome P450-dependent steps in gibberellin biosynthesis. Proc. Plant Growth Regulator Soc. Am. 24, 10-14. 

There are five groups of plant-growth-regulating compounds auxin, gibberellin, cytokinin, ethylene, and abscisic acid. For the most part, each group contains both naturally occurring hormones and synthetic substances. 

See reviews in Gibberellins, Chemistry, Physiology and Use , ed. J. R. Lenton, British Plant Growth Regulator Group Monograph, No. 5, Oxford, 1980. 

Fig. 11.2. Chemical structures of plant growth regulator compounds out of the five main PGR categories auxins (lAA, 2,4-D), ethylene (ethephon), cytokinin (kinetin, benzyladenin), growth inhibitors (ABA), and gibberellins (GA3).

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