Bioassay of cytokinin
WebJan 7, 2009 · Miller (1956) identified the first cytokinin, called kinetin, in the herring sperm. Cytokinins occur in most plants including mosses, ferns, conifers, algae and diatoms; II. Chemistry ... This is the basis for the classical bioassay. The mechanism is associated with increased plasticity of the cell wall, not associated with acidification. WebMar 1, 1974 · Cucumber cotyledon expanSIon in dark can therefore serve as a bioassay system for cytokinins. A comparison of the activity of different concentrations of kinetin and benzylaminopurine on cotyledon expansion in dark is shown in table 6 and figs. 3 to 5. It will be seen that benzylaminopurine is more active than kinetin in cucumber cotyledons ...
Bioassay of cytokinin
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WebJul 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 ... 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 ...
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... WebA rapid bioassay for cytokinins is described. This is based on the ability of these compounds to promote markedly the expansion of radish cotyledons excised soon after …
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 ...
WebMar 1, 2009 · The development of sensitive analytical methods for the determination of cytokinin levels in plant tissues is essential for elucidating the roles of cytokinins in life science. In the past decade ...
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 … can i refinish engineered hardwoodWebHence, chlorophyll preservation test is a bioassay for cytokinin. Cytokinin promotes cell enlargement in the leaf tissues of certain plants. So, radish and bean leaf test have been … can i refinish engineered hardwood floorsWebCytokinin 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 … can i refreeze a partially thawed turkeyWebWe also report here an improved chlorophyll retention bioassay based on incubation of 2.5 cm long detached wheat leaf segments in microtiter plate wells containing 150 µl of … five letter words containing lauWeb1-1. Introduction. We performed quantitative analysis for cytokinin using cotyledons (seed sprouts) of cucumber (Cucumis sativus L. cv.). We proposed to make E. coli produce cytokinin and needed to establish experimental system for quantitative analysis for cytokinin. Cucumber cotyledons are frequently used as samples for a simple and rapid … can i refinish my own hardwood floorsWebCytokines are pleiotropic regulatory proteins involved in essentially all biological processes and associated with a wide variety of diseases, including inflammatory … can i refit custom whitening traysWebThe bioassay is based on the expression in transformed tobacco ( Nicotiana tabacum) mesophyll protoplasts of a chimeric gene, consisting of the upstream sequences of the … can i refinish my tub