Spatio-temporal changes in endogenous abscisic acid contents during etiolated growth and photomorphogenesis in tomato seedlings

Humplík, Jan; Turečková, Veronika; Fellner, Martin; Bergougnoux, Véronique

doi:10.1080/15592324.2015.1039213

Cited by 17 publications

(12 citation statements)

References 17 publications

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“…Photosynthesis is considered as a donor (source) of assimilates and growth processes as an acceptor (sink) (Yu et al, 2015;Kuryata, Polyvanyj, 2018;Kuryata, Khodanitska, 2018). These relationships in plants are regulated at different levels (Matysiak, Kaczmarek, 2013;Savage et al, 2015;Sugiura et al, 2015;Humplík et al, 2015). At the same time, there is much less information about the functioning of this system during the period of germination of bulbs, tubers, and rhizomes in the heterotrophic phase of development (Kuryata et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis

Poprotska¹,

Kuryata²,

Khodanitska³

et al. 2020

biologija

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The influence of preparations of phytohormone gibberellin and antigibberellin–retardants tebuconazole and chlormequat chloride – on the germination of plant seeds with different types of reserve compounds in the light (photomorphogenesis) and in the dark (skotomorphogenesis) was studied. It was established that under the action of gibberellin, stimulation of the aboveground part and root system growth of maize, beans and pumpkin seedlings was more intensive in comparison with the control. This process was faster in the dark. The use of tebuconazole and chlormequat chloride significantly inhibited the process of germination both in the light and in the dark. At the same time, the coefficient of the use of reserve substances was maximal under the action of gibberellin, and minimum under the action of retardants, both under the conditions of skoto- and photomorphogenesis. The change in the growth characteristics and the coefficient of the use of reserve substances of bean seeds was accompanied by a decrease in the content of total nitrogen, indicating the use of reserve nitrogen-containing compounds in the processes of morphogenesis. The content of protein nitrogen in the control was lower under the conditions of skotomorphogenesis than in the photomorphic seedlings, and the opposite effect was noted for the actions of gibberellin and the retardant. In the later stages of germination, the largest reserve oil of pumpkin seed remained in cotyledonary leaves of photomorphic plants under the effects of chlormequat chloride, which clearly correlated with the least intense growth rates of seedlings in this variant, both in the light and darkness. Under conditions of skotomorphogenesis the growth stimulating effect of gibberellin significantly increased, and the light blocked the action of this phytohormone.

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Section: Introductionmentioning

confidence: 99%

Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis

Poprotska¹,

Kuryata²,

Khodanitska³

et al. 2020

biologija

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“…The specific effects of ABA on light‐induced greening of cotyledons were not clear until very recently. ABA accumulates in the cotyledons and the elongation zone of the hypocotyl of dark‐grown seedlings, helping to maintain etiolated development (Humplík et al ., 2015). During dark to light transition, the greening rate of etiolated seedlings is reduced in the presence of exogenously provided ABA, suggesting that ABA negatively regulates this process (D. Xu et al ., 2020).…”

Section: Aba Puts a Brake On Light‐induced Greening Of Seedlingsmentioning

confidence: 99%

Light and abscisic acid interplay in early seedling development

Yadukrishnan

Datta

2020

New Phytologist

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Abscisic acid (ABA) plays a crucial role in plant development, regulating germination, seedling development and stomatal movements, especially under adverse conditions. Light interacts with the ABA signalling pathway to fine tune these processes. Here, we provide an overview of the recent investigations on ABA-light interplay during early plant development after germination. We discuss the multilayered and reciprocal interactions between ABA signalling components and several light signalling modulators, including photoreceptors, transcription factors and posttranslational modifiers. ABSCISIC ACID INSENSITIVE5 acts as a central convergence point for these interactions during postgermination seedling development. ABA also regulates the adaptation of seedlings to challenging light environments. Furthermore, we enlist the role of ABA-light cross-talk in regulating seedling establishment in crops and highlight open questions for future investigations.

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“…Серед внутрішніх факторів регуляції напруження донорно-акцепторних відносин ключову роль відіграє гормональна система. Фітогормони включені в систему трансдукції світлового сигналу (Hornitschek et al, 2012;Zhang et al, 2014;Humplík et al, 2015;De Wit and Pierik, 2016;Van Hook, 2016). Зокрема, за дії світла змінюється метаболізм і чутливість рослин до гіберелінів (Zhang et al, 2014).…”

Section: вступunclassified

The impact of growth stimulators and retardants on the utilization of reserve lipids by sunflower seedlings

Kuryata

Poprotska

Рогач

2017

Regul. Mech. Biosyst.

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Using growth stimulators and anti-gibberillin preparations of different chemical compounds, we created different pressures in the coordinate covalent bond systems during germination of sunflower seeds. Using gibberellin and treptolem growth stimulators and Paclobutrazol and Chlormequat-Chlorid anti-gibberillin preparations is an efficient method of reconstructing coordinate covalent bond during the germination of seeds of oil-bearing crops. It allows determination of the role of the hormone factor in the utilization of reserve lipids over the heterotrophic phase of plant development. Blocking the synthesis of gibberellins by retardants caused decrease in activity of lipase, hydrolysis of reserve lipids and the meristem, which resulted in decrease in the energy of germination. Compared to the control, the impact of gibberellin increased the content of butyric acid, and the impact of Paclobutrazol reduced the content of butyric acid. Linoleic acid showed exactly the opposite changes. In relation to the control, a significant increase in the content of non-saturated linoleic acid was observed in both variants of the experiment. Gibberellic acid stimulated and Paclobutrazol slowed the usage of free higher fatty acids for the process of morphogenesis.

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Spatio-temporal changes in endogenous abscisic acid contents during etiolated growth and photomorphogenesis in tomato seedlings

Cited by 17 publications

References 17 publications

Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis

Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis

Light and abscisic acid interplay in early seedling development

The impact of growth stimulators and retardants on the utilization of reserve lipids by sunflower seedlings

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