Seed dormancy and the control of germination
Citations
1,153 citations
Cites background from "Seed dormancy and the control of ge..."
...Genetic studies have shown that ABA produced by maternal tissues or supplied exogenously is not sufficient to induce dormancy (50, 51), implying that this is a form of embryo-controlled dormancy dependent on ABA synthesis in the embryo and/or endosperm....
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...Seed dormancy has been described as “one of the least understood phenomena in seed biology” (50) and remains confusing despite much recent progress....
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...Further evidence suggesting the importance of ABI-like genes in dormancy regulation comes from studies of their orthologs in other dicots, cereals, and even conifers (50, 97)....
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831 citations
Cites background from "Seed dormancy and the control of ge..."
...In Arabidopsis the embryo is surrounded by the single-cell endosperm (also called aleurone) layer, which is also the result of double fertilization (Finch-Savage & Leubner-Metzger, 2006), and the testa (Debeaujon et al., 2000) (Fig....
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...Once this window is passed, the requirement for RGL2 destruction no longer exists, highlighting the functionality of after-ripening as a process of changing ‘windows’ of sensitivity to external and internal signals (Finch-Savage & Leubner-Metzger, 2006)....
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...Germination is defined as the emergence of the radicle through surrounding structures (Bewley, 1997b; Baskin & Baskin, 2004; Finch-Savage & Leubner-Metzger, 2006)....
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...The definition of seed dormancy has been reviewed by Finch-Savage & Leubner-Metzger (2006) and is generally given as the incapacity of a viable seed to germinate under favourable conditions....
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...The role of ABA signalling and biosynthesis in germination completion The role of ABA has classically been defined as that of a repressor of germination completion (Finch-Savage & Leubner-Metzger, 2006)....
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References
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"Seed dormancy and the control of ge..." refers background in this paper
...Journal compilation © New Phytologist (2006) Review504 light changes the seed so that it can germinate in darkness and is therefore the last step in the dormancy-breaking process, rather than the first step in the germination process (Bewley & Black, 1994; Pons, 2000; Leubner-Metzger, 2003)....
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...…both dormancy and germination and that light regulates germination; however, it is a matter of debate whether light is also a regulator of dormancy (Bewley & Black, 1994; Vleeshouwers et al ., 1995; Casal & Sanchez, 1998; Pons, 2000; Baskin & Baskin, 2004; Fenner & Thompson, 2005; Kucera et al .,…...
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2,545 citations
"Seed dormancy and the control of ge..." refers background or methods in this paper
...Cell elongation is necessary and is generally accepted to be sufficient for the completion of radicle protrusion (visible germination) (Bewley, 1997a; Kucera et al ., 2005)....
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...…Introduction Seed dormancy could be considered simply as a block to the completion of germination of an intact viable seed under favourable conditions, but earlier reviews concluded that it is one of the least understood phenomena in the field of seed biology (Hilhorst, 1995; Bewley, 1997a)....
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...…and promotion of germination After-ripening, i.e. a period of usually several months of dry storage at room temperature of freshly harvested, mature seeds, is a common method used to release dormancy (Bewley, 1997a; Probert, 2000; Leubner-Metzger, 2003; Kucera et al., 2005; Bair et al., 2006)....
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...…in this mechanical resistance of the micropylar endosperm (the endosperm layer covering the radicle tip) appears to be a prerequisite for radicle protrusion during seed germination (for reviews, see Hilhorst, 1995; Bewley, 1997b; Leubner-Metzger, 2003; Sanchez & Mella, 2004; Kucera et al., 2005)....
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...These studies show that the intrinsic molecular mechanisms determining dormancy can have an embryo and/or a coat component (Hilhorst, 1995; Bewley, 1997a; Kucera et al., 2005)....
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