Cold-induced secondary dormancy and its regulatory mechanisms in Beta vulgaris
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F22%3A00563361" target="_blank" >RIV/61389030:_____/22:00563361 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/22:73616678
Result on the web
<a href="https://doi.org/10.1111/pce.14264" target="_blank" >https://doi.org/10.1111/pce.14264</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/pce.14264" target="_blank" >10.1111/pce.14264</a>
Alternative languages
Result language
angličtina
Original language name
Cold-induced secondary dormancy and its regulatory mechanisms in Beta vulgaris
Original language description
The dynamic behaviour of seeds in soil seed banks depends on their ability to act as sophisticated environmental sensors to adjust their sensitivity thresholds for germination by dormancy mechanisms. Here we show that prolonged incubation of sugar beet fruits at low temperature (chilling at 5°C, generally known to release seed dormancy of many species) can induce secondary nondeep physiological dormancy of an apparently nondormant crop species. The physiological and biophysical mechanisms underpinning this cold-induced secondary dormancy include the chilling-induced accumulation of abscisic acid in the seeds, a reduction in the embryo growth potential and a block in weakening of the endosperm covering the embryonic root. Transcriptome analysis revealed distinct gene expression patterns in the different temperature regimes and upon secondary dormancy induction and maintenance. The chilling caused reduced expression of cell wall remodelling protein genes required for embryo cell elongation growth and endosperm weakening, as well as increased expression of seed maturation genes, such as for late embryogenesis abundant proteins. A model integrating the hormonal signalling and master regulator expression with the temperature-control of seed dormancy and maturation programmes is proposed. The revealed mechanisms of the cold-induced secondary dormancy are important for climate-smart agriculture and food security.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Cell and Environment
ISSN
0140-7791
e-ISSN
1365-3040
Volume of the periodical
45
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
1315-1332
UT code for WoS article
000747704000001
EID of the result in the Scopus database
2-s2.0-85123787719