Roles of abscisic acid and gibberellins in maintaining primary and secondary dormancy of Korean pine seeds

Song, Youngsoo; Zhu, Jiaojun; Yan, Qiaoling

doi:10.1007/s11676-019-01026-4

Cited by 5 publications

(5 citation statements)

References 54 publications

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“…Abscisic acid plays a crucial role in the dormancy process ( Chen et al, 2020b ; Li et al, 2018 ; Song, Zhu & Yan, 2020 ; Tylewicz et al, 2018 ; Zheng et al, 2018 ). Environmental variations cause fluctuations of endogenous ABA levels in plants, resulting in multifarious physiological responses.…”

Section: Introductionmentioning

confidence: 99%

Genome-wide identification, characterisation, and evolution of ABF/AREB subfamily in nine Rosaceae species and expression analysis in mei (Prunus mume)

Xue

Zheng

Zhuo

et al. 2021

PeerJ

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Rosaceae is an important family containing some of the highly evolved fruit and ornamental plants. Abiotic stress responses play key roles in the seasonal growth and development of plants. However, the molecular basis of stress responses remains largely unknown in Rosaceae. Abscisic acid (ABA) is a stress hormone involving abiotic stress response pathways. The ABRE-binding factor/ABA-responsive element-binding protein (ABF/AREB) is a subfamily of the basic domain/leucine zipper (bZIP) transcription factor family. It plays an important role in the ABA-mediated signaling pathway. Here, we analyzed the ABF/AREB subfamily genes in nine Rosaceae species. A total of 64 ABF/AREB genes were identified, including 18, 28, and 18 genes in the Rosoideae, Amygdaloideae, and Maloideae traditional subfamilies, respectively. The evolutionary relationship of the ABF/AREB subfamily genes was studied through the phylogenetic analysis, the gene structure and conserved motif composition, Ka/Ks values, and interspecies colinearity. These gene sets were clustered into four groups. In the Prunus ABF/AREB (PmABF) promoters, several cis-elements related to light, hormone, and abiotic stress response were predicted. PmABFs expressed in five different tissues, except PmABF5, which expressed only in buds. In the dormancy stages, PmABF1, 2, 5 and 7 showed differential expression. The expression of PmABF3, 4 and 6 was positively correlated with the ABA concentration. Except for PmABF5, all the PmABFs were sensitive to ABA. Several ABRE elements were contained in the promoters of PmABF1, 3, 6, 7. Based on the findings of our study, we speculate that PmABFs may play a role in flower bud dormancy in P. mume.

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Section: Introductionmentioning

confidence: 99%

Genome-wide identification, characterisation, and evolution of ABF/AREB subfamily in nine Rosaceae species and expression analysis in mei (Prunus mume)

Xue

Zheng

Zhuo

et al. 2021

PeerJ

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“…Plant hormones are the most important endogenous factor in the regulation of seed dormancy and germination. Both processes are affected by the absolute hormone content within the seed and also by the hormone sensitivity of the seed [35][36][37]. It has been reported that whether some seeds remain dormant or germinate does not depend directly on the content of ABA but on the sensitivity of the seed embryo to ABA [38].…”

Section: Evidence Of a Hormonal Control Of Thermodormancymentioning

confidence: 99%

Thermodormancy and Germination Response to Temperature of Pyrus ussuriensis Seeds

Liu,

Li,

Zhu

et al. 2024

Agronomy

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To determine the optimal germination temperature for Pyrus ussuriensis seeds and whether they experienced the phenomenon of thermodormancy and its inciting factors, several germination tests were conducted using non-dormant P. ussuriensis seeds for comparison. The results showed that the highest germination rate of P. ussuriensis seeds was reached at a constant temperature of 5 °C and variable temperature (night/day) of 5 °C/10 °C. Constant temperatures of 25 °C for three days induced thermodormancy, triggering significant drops in seeding emergence. Thermodormancy was related to the inhibitory effect of endogenous substances in the seed coat and an elevated abscisic acid concentration. The embryo, by contrast, remained non-dormant. Thermodormant and non-dormant seed embryos showed higher germination rates than dormant seed embryos when applied exogenous abscisic acid and gibberellic acid. We found that P. ussuriensis seeds showed thermodormancy; thus, during early spring sowing, high temperatures should be avoided to prevent low seed germination capacity. Additionally, applying exogenous gibberellic acid, shading and increasing soil moisture can be helpful to enhance the species seed germination.

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“…In previous studies, ABA-insensitive Arabidopsis mutants and the WT were used for experiments. Under suitable germination conditions, the mutants could germinate directly without going through dormancy, indicating that ABA inhibited seed germination (Kermode, 2005;Song et al, 2020). Under salt stress, the expression levels of proteins related to the ABAsignaling pathway in eno2 -, such as Aconitate hydratase 3, mitochondrial (EC:4.2.1.3) (ACO3), 3-ketoacyl-CoA thiolase 2, peroxisomal (EC:2.3.1.16) (PED1), and Basic-leucine zipper (BZIP) transcription factor family protein (HY5), were significantly upregulated, and the expression levels of genes were consistent with proteins.…”

Section: Deps and Degs Associated With Phytohormones In The Combined ...mentioning

confidence: 99%

Integrative transcriptomic and TMT-based proteomic analysis reveals the mechanism by which AtENO2 affects seed germination under salt stress

Liu

Jie

et al. 2022

Front. Plant Sci.

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Seed germination is critical for plant survival and agricultural production and is affected by many cues, including internal factors and external environmental conditions. As a key enzyme in glycolysis, enolase 2 (ENO2) also plays a vital role in plant growth and abiotic stress responses. In our research, we found that the seed germination rate was lower in the AtENO2 mutation (eno2-) than in the wild type (WT) under salt stress in Arabidopsis thaliana, while there was no significant difference under normal conditions. However, the mechanisms by which AtENO2 regulates seed germination under salt stress remain limited. In the current study, transcriptome and proteome analyses were used to compare eno2- and the WT under normal and salt stress conditions at the germination stage. There were 417 and 4442 differentially expressed genes (DEGs) identified by transcriptome, and 302 and 1929 differentially expressed proteins (DEPs) qualified by proteome under normal and salt stress conditions, respectively. The combined analysis found abundant DEGs and DEPs related to stresses and hydrogen peroxide removal were highly down-regulated in eno2-. In addition, several DEGs and DEPs encoding phytohormone transduction pathways were identified, and the DEGs and DEPs related to ABA signaling were relatively greatly up-regulated in eno2-. Moreover, we constructed an interactive network and further identified GAPA1 and GAPB that could interact with AtENO2, which may explain the function of AtENO2 under salt stress during seed germination. Together, our results reveal that under salt stress, AtENO2 mainly affects the expression of genes and proteins related to the phytohormone signal transduction pathways, stress response factors, and reactive oxygen species (ROS), and then affects seed germination. Our study lays the foundation for further exploration of the molecular function of AtENO2 under salt stress at the seed germination stage in Arabidopsis thaliana.

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Roles of abscisic acid and gibberellins in maintaining primary and secondary dormancy of Korean pine seeds

Cited by 5 publications

References 54 publications

Genome-wide identification, characterisation, and evolution of ABF/AREB subfamily in nine Rosaceae species and expression analysis in mei (Prunus mume)

Genome-wide identification, characterisation, and evolution of ABF/AREB subfamily in nine Rosaceae species and expression analysis in mei (Prunus mume)

Thermodormancy and Germination Response to Temperature of Pyrus ussuriensis Seeds

Integrative transcriptomic and TMT-based proteomic analysis reveals the mechanism by which AtENO2 affects seed germination under salt stress

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