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
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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
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
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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
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