Dynamics of growth and the content of endogenous phytohormones during kidney bean scoto-and photomorphogenesis

Features of gas exchange and use of reserve substances in pumpkin seedlings in conditions of skoto- and photomorphogenesis under the influence of gibberellin and chlormequat-chloride

“…The growth inhibitory effect of light intensified in conditions of reduction of gibberellin synthesis under the action of the retardant, this indicates that gibberellins are the active modifiers of the photoreceptor system in plants (Kuryata and Kiriziy, 2008). Similar conclusions have been made by other authors studying the interaction of light at different wavelengths and phytohormones in the processes of skoto-and photomorphogenesis of bean plants (Golovatskaya and Karnachuk, 2007).…”

“…Thus, application of chlormequat-chloride caused a decrease in the utilization coefficient of reserve substances in seeds compared to the control and gibberellin. Similar results for use of the reserve compounds of cotelydons during germination of bean seeds in the light and in the dark have also been obtained by other authors (Golovatskaya and Karnachuk, 2007). Іt is common knowledge that one of the most important functions of gibberellins in the stimulation of the seed germination process in cereals is the ability to stimulate an allocation the α-amylase from the germ to the endosperm, which leads to splitting of starch grains.…”

“…These changes are realized through the restructuring of the hormonal complex. Phytohormones are included in the light signal transduction because many of the development reactions of plants which are controlled by light also react to the action on plants by hormones (Golovatskaya and Karnachuk, 2007). Results of genetic analysis of mutations of gibberellins and phytochromes indicate an interaction between these signaling systems under certain physiological conditions.…”

“…On the other hand, we know that phytohormones are included into the system of photic signal transduction (Hornitschek et al, 2012;Humplík et al, 2015). In particular, the action of light changes metabolism and sensitivity to gibberellins in plants (Golovatskaya and Karnachuk, 2007;Zhang et al, 2014). It is known that the speed of stem growth depends on the meristematic activity of the subapical zone, which is largely controlled by gibberellins (Minguet et al, 2014;Hedden and Thomas, 2016).…”

Regulation of Donor-Acceptor Relations in the System of Deposition of Assimilates – Growth in Legume Plants during Germination

“…The increase of ABA level is noted in intensive length and biomass growth periods of leaves, roots in the light and hypocotyl in the darkness. Light increased the ratio of auxin and cytokinins in the roots of the beans and reduced it in the epicotyl [2]. In our opinion, one of the action mechanisms of the light can serve as artificial change in the content and phytohormones ratio, there is a small percentage of literature which discuss about the likely find differences between skotomorfohenesis still and processes for monocots and flowering plants, due to different level of phytohormones, biochemical composition and nature of spare parts.…”