Involvement of ethylene in seed physiology

Matilla, Ángel J.; Matilla-Vázquez, M. A.

doi:10.1016/j.plantsci.2008.01.014

Cited by 145 publications

(145 citation statements)

References 98 publications

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“…Ethylene has been found to play a key role in the release of coat-imposed seed dormancy and the promotion of seed germination by endosperm cap weakening and endosperm rupture (Kepczynski and Kepczynska, 1997;Linkies et al, 2009). The main role of ethylene could be the promotion of radial cell expansion in the embryonic hypocotyl, decreased seed base water potential, and enhanced seed respiration or activity of cell wall hydrolases in the endosperm cap (Kucera et al, 2005;Matilla and Matilla-Vázquez, 2008). In our work, several downstream ethylene-responsive genes, including the cell wall-modifying proteins b-1,3-glucanase and expansin, have been found to be upregulated in the snl1 snl2-1 double mutant (Table 1; see Supplemental Figure 8 online), which further indicates that ethylene functions in the regulation of seed dormancy mediated by SNL1 and SNL2.…”

Section: Snl1 and Snl2 Regulate Seed Dormancy By Influencing Ethylenementioning

confidence: 99%

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ArabidopsisPaired Amphipathic Helix Proteins SNL1 and SNL2 Redundantly Regulate Primary Seed Dormancy via Abscisic Acid–Ethylene Antagonism Mediated by Histone Deacetylation

et al. 2013

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Histone (de)acetylation is a highly conserved chromatin modification that is vital for development and growth. In this study, we identified a role in seed dormancy for two members of the histone deacetylation complex in Arabidopsis thaliana, SIN3-LIKE1 (SNL1) and SNL2. The double mutant snl1 snl2 shows reduced dormancy and hypersensitivity to the histone deacetylase inhibitors trichostatin A and diallyl disulfide compared with the wild type. SNL1 interacts with HISTONE DEACETYLASE19 in vitro and in planta, and loss-of-function mutants of SNL1 and SNL2 show increased acetylation levels of histone 3 lysine 9/18 (H3K9/18) and H3K14. Moreover, SNL1 and SNL2 regulate key genes involved in the ethylene and abscisic acid (ABA) pathways by decreasing their histone acetylation levels. Taken together, we showed that SNL1 and SNL2 regulate seed dormancy by mediating the ABA-ethylene antagonism in Arabidopsis. SNL1 and SNL2 could represent a crosslink point of the ABA and ethylene pathways in the regulation of seed dormancy.

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Section: Snl1 and Snl2 Regulate Seed Dormancy By Influencing Ethylenementioning

confidence: 99%

“…Ethylene can promote seed germination and repress seed dormancy establishment by antagonizing the ABA pathway (Matilla and Matilla-Vázquez, 2008;Linkies and Leubner-Metzger, 2012). Ethylene-insensitive ethylene response1 (etr1) mutant seeds show enhanced dormancy, and their germination is ABA hypersensitive.…”

Section: Introductionmentioning

confidence: 99%

ArabidopsisPaired Amphipathic Helix Proteins SNL1 and SNL2 Redundantly Regulate Primary Seed Dormancy via Abscisic Acid–Ethylene Antagonism Mediated by Histone Deacetylation

et al. 2013

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“…In case of walnut the seed dormancy has been correlated with physiological dormancy that is controlled by seed coat and embryo dormancy. Seed germination is a complex process that started with the absorption of water and after a short pause; the enzyme is activated (Matilla and Matilla-Vazquez, 2008). …”

Section: Introductionmentioning

confidence: 99%

Effect of Different Pre Sowing Treatments on Seed Germination and Seedling Growth of Walnut (Juglans regia L.)

Negi¹,

Nautiyal²,

Thakur³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…ABA was established as key in maintaining seed dormancy (Matilla and Matilla-Vázquez 2008). It corresponded with the efficiency of stratification (re- viewed by Kermode 2005).…”

Section: Discussionmentioning

confidence: 99%

Storage compounds, ABA and fumarase in Fagus sylvatica embryos during stratification

Eliášová¹,

Pešek²,

Vondráková³

2015

Dendrobiology

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Understanding the mechanisms of seed dormancy is essential for planning optimal seed storage and for breaking the dormancy of stored seeds. Our experiments focused on three aspects of characterization of breaking the dormancy of Fagus sylvatica seeds during moist low temperature stratification. 1) We used the changes of ABA content in embryos during the whole process of stratification as the marker of the depth of dormancy: the decrease in the depth of dormancy (according standard germination tests) was directly proportional to the drop in endogenous ABA content in both cotyledons and embryonic axes. 2) Fumarase activity (the second marker of dormancy) increased gradually during stratification.3) The histochemical visualisation of storage compounds as the third marker of dormancy documented the changes in storage protein deposition during stratification. The proteinaceous content of storage vacuoles disappeared; the vacuoles diminished, petered out or fused, creating central vacuoles. This process commenced with imbibition of the seeds and it was more pronounced in the cells in the external parts of the cotyledons. No changes in the size and location of starch grains or calcium oxalate crystals linked with stratification were detected.

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Involvement of ethylene in seed physiology

Cited by 145 publications

References 98 publications

ArabidopsisPaired Amphipathic Helix Proteins SNL1 and SNL2 Redundantly Regulate Primary Seed Dormancy via Abscisic Acid–Ethylene Antagonism Mediated by Histone Deacetylation

ArabidopsisPaired Amphipathic Helix Proteins SNL1 and SNL2 Redundantly Regulate Primary Seed Dormancy via Abscisic Acid–Ethylene Antagonism Mediated by Histone Deacetylation

Effect of Different Pre Sowing Treatments on Seed Germination and Seedling Growth of Walnut (Juglans regia L.)

Storage compounds, ABA and fumarase in Fagus sylvatica embryos during stratification

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