Endogenous level of abscisic acid down-regulated by brassinosteroids signaling via BZR1 to control the growth of <i>Arabidopsis thaliana</i>

Moon, Jinyoung; Park, Chan Ho; Son, Seung-Hyun; Youn, Ji-Hyun; Kim, Seong‐Ki

doi:10.1080/15592324.2021.1926130

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…The results of the studies performed by J. Moon and colleagues and our results on the use of ECS in soybeans (Figure 2) indicate a key role of BRs in the regulation of ABA levels in plants [19].…”

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...supporting

confidence: 58%

“…It is known that the effects of ABA in seeds are associated mainly with the prevention of premature germination [64]. In contrast, BRs attenuate the effect of ABA and promote seed germination as well as vegetative growth and the development of plants [19,65]. BRs antagonize ABA-mediated responses in plants through a family of transcription factors, BZR1, which can reduce the expression of the main ABA-signaling component, ABA INSENSITIVE 5 (ABI5) [65].…”

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

“…BRs antagonize ABA-mediated responses in plants through a family of transcription factors, BZR1, which can reduce the expression of the main ABA-signaling component, ABA INSENSITIVE 5 (ABI5) [65]. Furthermore, it has been found that BZR1 directly binds to the E-box sequences in the AtABA2 promoter region, decreasing the level of endogenous ABA in A. thaliana [19]. Treatment with brassinazole (Brz), a biosynthetic inhibitor of BR synthesis, increased AtABA2 expression, an effect that can be attenuated by the exogenous use of BL [19].…”

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

“…Furthermore, it has been found that BZR1 directly binds to the E-box sequences in the AtABA2 promoter region, decreasing the level of endogenous ABA in A. thaliana [19]. Treatment with brassinazole (Brz), a biosynthetic inhibitor of BR synthesis, increased AtABA2 expression, an effect that can be attenuated by the exogenous use of BL [19]. The results of the studies performed by J.…”

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

“…BRs have a strong impact on photosynthesis and the membrane properties under acclimation to temperature stress [14]. BRs interact with the signaling pathways of other phytohormones [18], in particular those of abscisic acid (ABA) [19], cytokinins [20], auxins [21][22][23], gibberellins (GCs) [24,25], jasmonic acid (JA) [26], ethylene [27], salicylic acid (SA) [28] and other plant hormones [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Exogenous 24-Epicasterone on the Hormonal Status of Soybean Plants

Derevyanchuk,

Kretynin,

Bukhonska

et al. 2023

Plants

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Brassinosteroids (BRs) are key phytohormones involved in the regulation of major processes of cell metabolism that guide plant growth. In the past decades, new evidence has made it clear that BRs also play a key role in the orchestration of plant responses to many abiotic and biotic stresses. In the present work, we analyzed the impact of foliar treatment with 24-epicastasterone (ECS) on the endogenous content of major phytohormones (auxins, salicylic acid, jasmonic acid, and abscisic acid) and their intermediates in soybean leaves 7 days following the treatment. Changes in the endogenous content of phytohormones have been identified and quantified by LC/MS. The obtained results point to a clear role of ECS in the upregulation of auxin content (indole-3-acetic acid, IAA) and downregulation of salicylic, jasmonic, and abscisic acid levels. These data confirm that under optimal conditions, ECS in tested concentrations of 0.25 µM and 1 µM might promote growth in soybeans by inducing auxin contents. Benzoic acid (a precursor of salicylic acid (SA)), but not SA itself, has also been highly accumulated under ECS treatment, which indicates an activation of the adaptation strategies of cell metabolism to possible environmental challenges.

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Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...supporting

confidence: 58%

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

Section: Interaction Of Brassinosteroids With Plant Cell Stress Hormo...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of Exogenous 24-Epicasterone on the Hormonal Status of Soybean Plants

Derevyanchuk,

Kretynin,

Bukhonska

et al. 2023

Plants

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BES1-Mediated Brassinosteroid Signaling Negatively Regulates Biosynthesis and Signaling of Abscisic Acid to Increase Seed Size in Arabidopsis

et al. 2023

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Usefulness and Molecular Mechanism of Seed-Specificity Introduced by AtBZR1 and AtBES1 to Improve Seed Yield and Quality in Arabidopsis thaliana

et al. 2023

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Endogenous level of abscisic acid down-regulated by brassinosteroids signaling via BZR1 to control the growth of Arabidopsis thaliana

Cited by 7 publications

References 18 publications

Influence of Exogenous 24-Epicasterone on the Hormonal Status of Soybean Plants

Influence of Exogenous 24-Epicasterone on the Hormonal Status of Soybean Plants

BES1-Mediated Brassinosteroid Signaling Negatively Regulates Biosynthesis and Signaling of Abscisic Acid to Increase Seed Size in Arabidopsis

Usefulness and Molecular Mechanism of Seed-Specificity Introduced by AtBZR1 and AtBES1 to Improve Seed Yield and Quality in Arabidopsis thaliana

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