Počet záznamů: 1
Circadian clock components control daily growth activities by modulating cytokinin levels and cell division-associated gene expression in Populus trees
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SYSNO ASEP 0490870 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Circadian clock components control daily growth activities by modulating cytokinin levels and cell division-associated gene expression in Populus trees Tvůrce(i) Edwards, K. D. (GB)
Takata, N. (BE)
Johansson, M. (SE)
Jurča, M. (US)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Hényková, Eva (UEB-Q) ORCID
Liverani, S. (GB)
Kozarewa, I. (SE)
Strnad, Miroslav (UEB-Q) RID, ORCID
Millar, A. J. (GB)
Ljung, K. (SE)
Eriksson, M. (SE)Celkový počet autorů 12 Zdroj.dok. Plant Cell and Environment. - : Wiley - ISSN 0140-7791
Roč. 41, č. 6 (2018), s. 1468-1482Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova biomass production ; cell division ; circadian clock ; cytokinin ; growth ; lignification ; photoperiod Vědní obor RIV EB - Genetika a molekulární biologie Obor OECD Plant sciences, botany CEP LO1204 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000434162400020 EID SCOPUS 85045241946 DOI 10.1111/pce.13185 Anotace Trees are carbon dioxide sinks and major producers of terrestrial biomass with distinct seasonal growth patterns. Circadian clocks enable the coordination of physiological and biochemical temporal activities, optimally regulating multiple traits including growth. To dissect the clock's role in growth, we analysed Populus tremula × P. tremuloides trees with impaired clock function due to down-regulation of central clock components. late elongated hypocotyl (lhy-10) trees, in which expression of LHY1 and LHY2 is reduced by RNAi, have a short free-running period and show disrupted temporal regulation of gene expression and reduced growth, producing 30–40% less biomass than wild-type trees. Genes important in growth regulation were expressed with an earlier phase in lhy-10, and CYCLIN D3 expression was misaligned and arrhythmic. Levels of cytokinins were lower in lhy-10 trees, which also showed a change in the time of peak expression of genes associated with cell division and growth. However, auxin levels were not altered in lhy-10 trees, and the size of the lignification zone in the stem showed a relative increase. The reduced growth rate and anatomical features of lhy-10 trees were mainly caused by misregulation of cell division, which may have resulted from impaired clock function. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2019
Počet záznamů: 1