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Accumulation pattern of endogenous cytokinins and phenolics in different organs of 1-year-old cytokinin pre-incubated plants: implications for conservation
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SYSNO ASEP 0451235 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Accumulation pattern of endogenous cytokinins and phenolics in different organs of 1-year-old cytokinin pre-incubated plants: implications for conservation Author(s) Aremu, A.O. (ZA)
Plačková, Lenka (UEB-Q) ORCID, RID
Grúz, Jiří (UEB-Q) RID, ORCID
Bíba, Ondřej (UEB-Q)
Šubrtová, Michaela (UEB-Q) ORCID
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Doležal, Karel (UEB-Q) RID, ORCID
van Staden, J. (ZA)Source Title Plant Biology. - : Wiley - ISSN 1435-8603
Roč. 17, č. 6 (2015), s. 1146-1155Number of pages 10 s. Language eng - English Country DE - Germany Keywords Acclimatisation ; conservation ; meta-topolins Subject RIV EB - Genetics ; Molecular Biology R&D Projects LO1204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LK21306 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UEB-Q - RVO:61389030 UT WOS 000363344100006 DOI 10.1111/plb.12367 Annotation A better understanding of phytohormone physiology can provide an essential basis to coherently achieve a conservation drive/strategy for valuable plant species. We evaluated the distribution pattern of cytokinins (CKs) and phenolic compounds in different organs of 1-year-old greenhouse-grown Tulbaghia simmleri pre-treated (during micropropagation) with three aromatic CKs (benzyladenine=BA, meta-topolin=mT, meta-topolin riboside=mTR). The test species is highly valuable due to its medicinal and ornamental uses. Based on UHPLC-MS/MS quantification, mT and mTR pre-treated plants had the highest total CK, mostly resulting from the isoprenoid CK-type, which occurred at highest concentrations in the roots. Although occurring in much lower concentrations when compared to isoprenoid CKs, aromatic CKs were several-fold more abundant in the root of mT pre-treated plants than with other treatments. Possibly related to the enhanced aromatic CKs, free bases and ribonucleotides, plants pre-treated with mT generally displayed better morphology than the other treatments. A total of 12 bioactive phenolic compounds, including four hydroxybenzoic acids, five hydroxycinnamic acids and three flavonoids at varying concentrations, were quantified in T.simmleri. The occurrence, distribution and levels of these phenolic compounds were strongly influenced by the CK pre-treatments, thereby confirming the importance of CKs in phenolic biosynthesis pathways. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2016
Number of the records: 1