Bioassay of cytokinin
WebNaturally occurring cytokinins are adenine-based plant hormones. Although, the effect of various substituents at positions N1, C2, N3, N 6, N7, or N9 on the biological activity of cytokinins has been studied, the C8-substituted compounds have received little attention.Here, we report the synthesis and in vitro biological testing of thirty-one … WebPlant growth substances are involved in nearly all aspects of the plant’s life cycle as deduced from the fact that exogenous applications by them profoundly affect plant responses. However, it is difficult to detect plant growth substances within the plant for...
Bioassay of cytokinin
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WebJan 1, 1989 · The response of the Biosynthesis of cytokinins by A. chroococcum 969 sample observed in the bioassay was compared to the response observed by a known concentration of r-zeatin. The amount of cytokinin-like compounds present was expressed in terms of the concentration of zeatin equivalents (ZE). Webyet rapid, bioassay for cytokinins (7). The sensitivity and specificity of several cytokinin bioassays, including those based on leaf senescence and callus formation, have been …
WebThe activity, uptake and metabolism of cytokinin metabolites was determined in soybean (Glycine max (L.) Merr.) callus tissue. The following activity sequence was established: zeatin riboside (ZR)>zeatin (Z)>O-glucosides of Z, ZR and their dihydro derivatives>lupinic acid (an alanine conjugate of Z)>7- and 9-glucosides of Z which were almost inactive. WebMay 1, 1972 · The cytokinin bioassay based upon these two effects is simple and provides results after a relatively short time. The root length is measured after 6 days of germination, while a-amylase activity is determined one day later in the same barley seedlings. The parallelism of these two effects indicates, better than a single test does, the presence ...
WebCytokinin travels from the roots into the shoots thereby signaling bud growth in length. Cytokinin has shown the slow aging of plant organs by preventing breakdown of … WebThe induction of shoot buds from the filamentous protonema of moss is a classic bioassay for cytokinin. While a large literature documents this response in many species of moss …
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WebAug 1, 1992 · The expression of this gene is induced by the presence of both auxin and cytokinin in the culture medium. Using this assay, indole-3-acetic acid was detected at 5 x 10(-8) molar, whereas trans ... nottingham forest league position historyWebJul 23, 2024 · Cytokinin bioassay further demonstrated that S-4893 antagonized cytokinin-induced stimulation of callus formation and inhibition of root elongation. S-4893 also promoted seminal, crown and lateral ... how to shorten drapes with liningWebJul 1, 1992 · The bioassay is based on the expression in transformed tobacco ( Nicotiana tabacum) mesophyll protoplasts of a chimeric gene, consisting of the upstream … nottingham forest league cupWebXanthium expresses a large and rapid cytokinin response which can be obtained in very small solution volumes, and which is sensitive to cytokinin concen-trations as low as 10 … nottingham forest league cup final 1989WebModifying the cytokinin content in plants is a means of improving plant productivity. Here, we report the development and biological activity of compound TD-K (1-(furan-2-ylmethyl)-3-(1,2,3-thiadiazol-5-yl)urea)which is related to thidiazuron. TD-K—which exhibited extremely high antisenescence activity in the wheat leaf bioassay—and INCYDE (2-chloro-6-(3 … nottingham forest macron dealWebHer primary areas of investigation include Botany, Cytokinin, Food science, Horticulture and Shoot. Her study in Botany is interdisciplinary in nature, drawing from both Micropropagation and Tissue culture. Her work in the fields of Zeatin overlaps with other areas such as Seedling, Germination, Bioassay and Callus. nottingham forest lineupWebJun 21, 2024 · 3. CYTOKININ • Cytokinins are a class of purine-type phytohormones that promote – cell division, – shoot and root morphogenesis, – chloroplast maturation, – cell … how to shorten drive link