publication . Other literature type . Article . 2014

DELAY OF GERMINATION 1 mediates a conserved coat-dormancy mechanism for the temperature- and gibberellin-dependent control of seed germination

Klaus Mummenhoff; Tina Steinbrecher; Ada Linkies; Kai Graeber; Hans de Jong; Katja Sperber; Miroslav Strnad; Gerhard Leubner-Metzger; Veronika Turečková; Michael Ignatz; ...
Open Access English
  • Published: 11 Aug 2014
  • Publisher: National Academy of Sciences
  • Country: Czech Republic
Abstract
None: Seed germination is an important life-cycle transition because it determines subsequent plant survival and reproductive success. To detect optimal spatiotemporal conditions for germination, seeds act as sophisticated environmental sensors integrating information such as ambient temperature. Here we show that the delay of germination 1 (DOG1) gene, known for providing dormancy adaptation to distinct environments, determines the optimal temperature for seed germination. By reciprocal gene-swapping experiments between Brassicaceae species we show that the DOG1-mediated dormancy mechanism is conserved. Biomechanical analyses show that this mechanism regulates ...
Subjects
Medical Subject Headings: food and beverages
free text keywords: PNAS Plus, Cell-wall remodelling, Dormancy gene DOG1, Germination temperature, Gibberellin metabolism, Lepidium sativum, Conserved sequence, Biology, Botany, Germination, Cell biology, Gibberellin, Arabidopsis, biology.organism_classification, Endosperm, Brassicaceae, Dormancy, Hormone metabolism
Related research
Abstract
None: Seed germination is an important life-cycle transition because it determines subsequent plant survival and reproductive success. To detect optimal spatiotemporal conditions for germination, seeds act as sophisticated environmental sensors integrating information such as ambient temperature. Here we show that the delay of germination 1 (DOG1) gene, known for providing dormancy adaptation to distinct environments, determines the optimal temperature for seed germination. By reciprocal gene-swapping experiments between Brassicaceae species we show that the DOG1-mediated dormancy mechanism is conserved. Biomechanical analyses show that this mechanism regulates ...
Subjects
Medical Subject Headings: food and beverages
free text keywords: PNAS Plus, Cell-wall remodelling, Dormancy gene DOG1, Germination temperature, Gibberellin metabolism, Lepidium sativum, Conserved sequence, Biology, Botany, Germination, Cell biology, Gibberellin, Arabidopsis, biology.organism_classification, Endosperm, Brassicaceae, Dormancy, Hormone metabolism
Related research
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