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”

Histological and biochemical response of Norway spruce somatic embryos to UV-B irradiation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F17%3A00476855" target="_blank" >RIV/61389030:_____/17:00476855 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1007/s00468-017-1547-1" target="_blank" >http://dx.doi.org/10.1007/s00468-017-1547-1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s00468-017-1547-1" target="_blank" >10.1007/s00468-017-1547-1</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Histological and biochemical response of Norway spruce somatic embryos to UV-B irradiation

  • Original language description

    Plants respond to UV-B exposure by synthesizing a broad range of secondary metabolites, including ROS-scavenging antioxidants and UV-B screening phenylpropanoids. Our recent results indicated that the accumulation of higher levels of polyamines in fully developed somatic embryos of Norway spruce may be causally linked to better tolerance of UV-B irradiation. In the present work, we concentrated primarily on changes in phenolics and their localization in irradiated embryos. Somatic embryos, after 14 days of desiccation, were exposed to 6 W m(-2) h(-1) of 312 nm UV-B radiation. The accumulation of higher levels of spermidine and spermine (by about 20%) and total phenolics (about 25%) in these embryos indicates their participation in stress response. Histological localization of polyphenolic compounds was performed under a transmission light microscope. UV-B radiation elicited the accumulation of polyphenolics in the junction zone between root cap and hypocotyl and in the epidermal and subepidermal cells of hypocotyl and cotyledons. The deposition of polyphenolics in intact epidermal cells which were located in the neighbourhood of damaged cells may demonstrate that there is potential for transmission of a signal from injured cells to tissues protected against the direct effects of UV-B irradiation. UV-B irradiation evoked striking polyphenolic accumulation in specialized idioblastic cells localized beneath the epidermis of the somatic embryo hypocotyl and cotyledons. The fluorescence due to flavonoids, detected under confocal laser scanning microscope, increased dramatically after UV-B irradiation in the epidermis of the hypocotyl and cotyledons and in the surface of the root cap of spruce somatic embryos.

  • 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

    40102 - Forestry

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

    2017

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Trees: structure and function

  • ISSN

    0931-1890

  • e-ISSN

  • Volume of the periodical

    31

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    15

  • Pages from-to

    1279-1293

  • UT code for WoS article

    000405685800015

  • EID of the result in the Scopus database

    2-s2.0-85018831070