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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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