Research output per year
Research output per year
Abstract
Gibberellins (GA) promote seed germination, but they are not simple ’Go Ahead’ (GA) molecules as the insight gained into the molecular mechanisms underlying their role in seeds appears to be complex. This chapter covers their central role in mediating the environmental and developmental control of seed germination, and how this differs from vegetative growth processes. Spatiotemporal patterns of GA metabolism and GID1-type receptor signalling in the key seed compartments determine tissue interactions and germination timing in response
to ambient environmental cues. Gibberellins are key players in seed temperature
responses; during thermoinhibition they interact with other hormonal pathways.
Allelochemicals such as myrigalone A inhibit seed germination by specific interference with GA metabolism and signalling. This reveals important ecophysiological roles for GAs in seeds and suggests that they are fundamental for studying species adaptation and interaction in natural and agricultural ecosystems upon climate change.
to ambient environmental cues. Gibberellins are key players in seed temperature
responses; during thermoinhibition they interact with other hormonal pathways.
Allelochemicals such as myrigalone A inhibit seed germination by specific interference with GA metabolism and signalling. This reveals important ecophysiological roles for GAs in seeds and suggests that they are fundamental for studying species adaptation and interaction in natural and agricultural ecosystems upon climate change.
| Original language | English |
|---|---|
| Title of host publication | Annual Plant Reviews |
| Subtitle of host publication | The Gibberellins |
| Editors | Peter Hedden, Stephen G. Thomas |
| Publisher | Wiley-Blackwell |
| Pages | 253-284 |
| Number of pages | 31 |
| Volume | 49 |
| ISBN (Print) | 978-1-119-21042-9 |
| Publication status | Published - May 2016 |
Keywords
- Abiotic stress and thermoinhibition
- allelochemical myrigalone A
- Arabidopsis thaliana
- coat dormancy release
- Delay of Germination1 dormancy gene
- embryo growth potential
- endosperm weakening
- GID1-type gibberellin receptor signalling
- Lepidium sativum
- seed gibberellin metabolism
Research output
- 6 Article
-
Improving Crop Seed Quality and Seedling Performance
Leubner-Metzger, G., 1 Sept 2017, In: IMPACT. 2017, 7, p. 81-83 3 p.Research output: Contribution to journal › Article
Open AccessFile219 Downloads (Pure) -
DELAY OF GERMINATION 1 mediates a conserved coat-dormancy mechanism for the temperature- and gibberellin-dependent control of seed germination
Graeber, K., Linkies, A., Steinbrecher, T., Mummenhoff, K., Tarkowská, D., Turečková, V., Ignatz, M., Sperber, K., Voegele, A., de Jong, H., Urbanová, T., Strnad, M. & Leubner-Metzger, G., 26 Aug 2014, In: Proceedings of the National Academy of Sciences of the United States of America. 111, 34, p. E3571-E3580 10 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile451 Downloads (Pure) -
Beyond gibberellins and abscisic acid: how ethylene and jasmonates control seed germination
Linkies, A. & Leubner-Metzger, G., 2012, In: Plant Cell Reports. 31, 2, p. 253-270 18 p.Research output: Contribution to journal › Article › peer-review
Projects
- 2 Finished
Activities
- 1 Public engagement, outreach and knowledge exchange - Other
-
'The Seed Biology Place' - www.seedbiology.eu
Leubner, G. (Organiser)
2000 → …Activity: Other › Public engagement, outreach and knowledge exchange - Other
Prizes
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Visiting Professor of the Faculty of Science, Palacky University in Olomouc, Czech Republic
Leubner, G. (Recipient), 2013
Prize: National/international honour