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Cytokinin profiles in ex vitro acclimatized Eucomis autumnalis plants pre-treated with smoke-derived karrikinolide
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SYSNO ASEP 0459317 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cytokinin profiles in ex vitro acclimatized Eucomis autumnalis plants pre-treated with smoke-derived karrikinolide Author(s) Aremu, A.O. (ZA)
Plačková, Lenka (UEB-Q) ORCID, RID
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Stirk, W. A. (ZA)
Doležal, Karel (UEB-Q) RID, ORCID
van Staden, J. (ZA)Source Title Plant Cell Reports. - : Springer - ISSN 0721-7714
Roč. 35, č. 1 (2016), s. 227-238Number of pages 12 s. Language eng - English Country DE - Germany Keywords Acclimatization ; Asparagaceae ; Conservation 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 000371240100019 DOI 10.1007/s00299-015-1881-y Annotation Karrikinolide (KAR(1)) which is derived from smoke-water (SW) is involved in some physiological aspects in the life-cycle of plants. This suggests a potential influence on the endogenous pool (quantity and quality) of phytohormones such as cytokinins (CKs). In the current study, the effect of SW (1: 500; 1: 1000; 1: 1500 v/v dilutions) and KAR(1) (10(-7); 10(-8); 10(-9) M) applied during micropropagation of Eucomis autumnalis subspecies autumnalis on the ex vitro growth and CKs after 4 months post-flask duration was evaluated. The interactions of SW and KAR(1) with benzyladenine (BA), a-naphthaleneacetic acid (NAA) or BA+NAA were also assessed. Plants treated with SW (1:500) and KAR(1) (10(-8) M) demonstrated superior growth in terms of the rooting, leaf and bulb sizes and fresh biomass than the control and plants treated with BA and BA+NAA. However, plant growth was generally inhibited with either SW (1: 500) or KAR(1) (10(-8) M) and BA when compared to BA (alone) treatment. Relative to NAA treatment, the presence of KAR(1) (10(-7) M) with NAA significantly increased the leaf area and fresh biomass. Both SW and KAR(1)-treated plants accumulated more total CKs, mainly isoprenoid-type than the control and NAA-treated plants. The highest CK content was also accumulated in SW (1:500) with BA+NAA treatments. Similar stimulatory effects were observed with increasing concentrations of KAR(1) and BA. The current findings establish that SW and KAR(1) exert significant influence on the endogenous CK pools. However, the better growth of plants treated with SW and KAR(1) treatments was not exclusively related to the endogenous CKs. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2017
Number of the records: 1