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Contrasting patterns of cytokinins between years in senescing aspen leaves

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F17%3A00476485" target="_blank" >RIV/61389030:_____/17:00476485 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989592:15310/17:73583915

  • Result on the web

    <a href="http://dx.doi.org/10.1111/pce.12899" target="_blank" >http://dx.doi.org/10.1111/pce.12899</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/pce.12899" target="_blank" >10.1111/pce.12899</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Contrasting patterns of cytokinins between years in senescing aspen leaves

  • Original language description

    Cytokinins are plant hormones that typically block or delay leaf senescence. We profiled 34 different cytokinins/cytokinin metabolites (including precursors, conjugates and degradation products) in leaves of a free-growing mature aspen (Populus tremula) before and after the initiation of autumnal senescence over three consecutive years. The levels and profiles of individual cytokinin species, or classes/groups, varied greatly between years, despite the fact that the onset of autumn senescence was at the same time each year, and senescence was not associated with depletion of either active or total cytokinin levels. Levels of aromatic cytokinins (topolins) were low and changed little over the autumn period. Diurnal variations and weather-dependent variations in cytokinin content were relatively limited. We also followed the expression patterns of all aspen genes implicated as having roles in cytokinin metabolism or signalling, but neither the pattern of regulation of any group of genes nor the expression of any particular gene supported the notion that decreased cytokinin signalling could explain the onset of senescence. Based on the results from this tree, we therefore suggest that cytokinin depletion is unlikely to explain the onset of autumn leaf senescence in aspen.

  • 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

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

    Plant Cell and Environment

  • ISSN

    0140-7791

  • e-ISSN

  • Volume of the periodical

    40

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    13

  • Pages from-to

    622-634

  • UT code for WoS article

    000398850200004

  • EID of the result in the Scopus database