All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Coleorhiza-enforced seed dormancy: a novel mechanism to control germination in grasses

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73604610" target="_blank" >RIV/61989592:15310/21:73604610 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389030:_____/20:00540629

  • Result on the web

    <a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.16948" target="_blank" >https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.16948</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/nph.16948" target="_blank" >10.1111/nph.16948</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Coleorhiza-enforced seed dormancy: a novel mechanism to control germination in grasses

  • Original language description

    How the biophysical properties of overlaying tissues control growth, such as the embryonic root (radicle) during seed germination, is a fundamental question. In eudicot seeds the endosperm surrounding the radicle confers coat dormancy and controls germination responses through modulation of its cell wall mechanical properties. Far less is known for grass caryopses that differ in tissue morphology. Here we report that the coleorhiza, a sheath-like organ that surrounds the radicle in grass embryos, performs the same role in the grass weedAvena fatua(common wild oat). We combined innovative biomechanical techniques, tissue ablation, microscopy, tissue-specific gene and enzyme activity expression with the analysis of hormones and oligosaccharides. The combined experimental work demonstrates that in grass caryopses the coleorhiza indeed controls germination for which we provide direct biomechanical evidence. We show that the coleorhiza becomes reinforced during dormancy maintenance and weakened during germination. Xyloglucan endotransglycosylases/hydrolases may have a role in coleorhiza reinforcement through cell wall remodelling to confer coat dormancy. The control of germination by coleorhiza-enforced dormancy in grasses is an example of the convergent evolution of mechanical restraint by overlaying tissues.

  • 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

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    NEW PHYTOLOGIST

  • ISSN

    0028-646X

  • e-ISSN

  • Volume of the periodical

    229

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    13

  • Pages from-to

    2179-2191

  • UT code for WoS article

    000578272600001

  • EID of the result in the Scopus database

    2-s2.0-85092603272