Growth regulators triazines

Electrophoretic and isotachoelectrophoretic techniques are gaining in popularity in soil analysis with applications to polyaromatic hydrocarbons, polychlorobiphenyls, tetrahydrothiophene and triazine herbicides, Paraquat and Diquat and growth regulators. Other lesser-used techniques include spectrophotometric methods (five determinants), spectrofluorimetric methods (two determinants), luminescence methods (one determinant), titration methods (one determinant), thin-layer chromatography (five applications), NHR spectroscopy (two applications) and enzymic immunoassays (one determinant). 

Isotachoelectrophoresis or capillary column isotachoelectrophoresis has been employed in a number of analyses (triazine, herbicides, paraquat, diquat, growth regulators, polyaromatic hydrocarbons, polychlorobiphenyls and tetrahydrothiophene). 

Gast, A. (1958). Plant growth regulators The phytotoxic properties of triazines. Experientia, 14 134-136. 

Schwartz, W. (1966). s-Triazine plant growth regulators. Brit. 1, 132, 306. Chemical Abstr., 70 37844z. 

Cryomazine (insect growth regulator, s-triazine) Ti02-UV/VIS -[Substrate], +[Ox] Goutailler et al. (2001)... 

Herbicides and growth regulators—ureas, phenylureas, triazines, pyri-dazines, glyphosate, diquat/paraquat... 

Benzothiazolones are useful intermediates in the synthesis of plant growth regulators, and may be synthesized from substituted anilines by first converting the latter (with formaldehyde) into l,3,5-(triaminoaryl)-l,3,5-triazines which then break down on stirring successively with chlorocarbonylsulphenyl chloride and aluminium chloride. 

Sulfonylureas derived from pyrimidine (and 1,2,4-triazine) are of considerable importance among the more recently introduced growth regulators for herbicides, e.g. bensulfuronmethyl 43. 

The many documented differences in structure and function between triazine resistant and susceptible biotypes may occur as a consequence of reduced PSII in resistant plants and thus, be due to pleiotropic effects of the chloroplast mutation. It is also possible that differential productivity between biotypes of the same species is the result of variation in other traits that are under nuclear, not chloroplast, control (22, 22). The role of the chloroplast genome in regulating growth and productivity of resistant plants is best determined by examining nuclear-isogenic susceptible and resistant biotypes, rather than field-collected ones, since differences between biotypes in nuclear genome-controlled traits may mask or even compensate for detrimental effects of the chloroplast mutation. 

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