Growth regulators, cultured plant

Bronsema FBF, Vanuvustveen WJF, Pinsen E, Van Lammeren AAM. Distribution of [14C] dichlorophenoxyacetic acid in cultured zygotic embryos of Zea mays L. J Plant Growth Regul 1998 17 81-88. 

Cutler, H. G., Cole, R. J., and Wells, J. M. 1976. New naturally occurring plant growth regulators potential use in tobacco culture. Proc. 6th. International Tobacco Scientific Congress, Tokyo, 124-125... 

Successful growth and propagation of plant cells freely suspended in liquid media was first demonstrated almost 50 years ago (11-13). Much attention has been focused since on elucidating the necessary media components that support growth and differentiation of the culture. The role of growth regulators was pointed out in 1957 (14) and the process of somatic embryogenesis was realized in... 

Soskic, M., Klaic, B., Magnus, V. and Sabljic, A. (1995). Quantitative Structure-Activity Relationships for N-(Indol-3-Ylacetyl)Amino Acids Used as Sources of Auxin in Plant Tissue Culture. Plant Growth ReguL, 16,141-152. 

The early approaches employed to boost secondary metabolite yields using in vitro plant cell or organ cultures included, selection of nutrient regimes, choice of culture systems and conditions, level of plant growth regulators, cell line selection, precursor feeding, culture elicitation, removal of end-product, culture differentiation, etc. These were successfully followed by the application of recombinant DNA... 

The effects of lAA chloro-derivatives on the growth and the alkaloid production are presented in Fig. (36). Both lAA chloro-derivatives, 4-Cl-IAA and 5,6-Cl2-IAA, enhanced the growth of the roots compared with lAA at low concentrations. The optimum concentrations for alkaloid production were 0.1 mg/1 for 4-Cl-IAA and 0.01 mg/1 for 5,6-Cl2-IAA. The culture with 4-Cl-IAA (0.1 mg/1) or 5,6-Cl2-IAA (0.01 mg/1) resulted in a decrease of scopolamine and in a slight increase of hyoscyamine yield as compared with lAA, Figs. (35) and (36). It is known that 4-Cl-IAA and 5,6-Cl2-IAA are resistant to peroxidase decomposition [56] and the results indicate that they exert their effects at much lower concentrations than lAA. Thus they may be useful plant growth regulators for tropane alkaloid production in root cultures. 

The oxidation of cnt-kaurene is inhibited by the plant-growth regulator ancymidol at 10 mol 1 the drug blocks the formation of ent-kaurenol and at 10 mol it stops the conversion of MVA into ent-kaurene. These effects are completely reversed by the addition of gibberellic acid. Isosteviol (84) and steviol acetate (85) are effectively metabolized by cultures of mycelia of a G. fujikuroi... 

CAS 525-79-1. C10H9N5O. A plant growth regulator used to promote growth in bacterial cultures and as dormancy breaker. 

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