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Endogenous cytokinin profiles of tissue-cultured and acclimatized 'Williams' bananas subjected to different aromatic cytokinin treatments
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SYSNO ASEP 0431516 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Endogenous cytokinin profiles of tissue-cultured and acclimatized 'Williams' bananas subjected to different aromatic cytokinin treatments Author(s) Aremu, A.O. (ZA)
Plačková, Lenka (UEB-Q) ORCID, RID
Bairu, M. W. (ZA)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Szüčová, Lucie (UEB-Q) RID, ORCID
Doležal, Karel (UEB-Q) RID, ORCID
Finnie, J. F. (ZA)
van Staden, J. (ZA)Source Title Plant Science. - : Elsevier - ISSN 0168-9452
Roč. 214, JAN 2014 (2014), s. 88-98Number of pages 11 s. Language eng - English Country IE - Ireland Keywords Micropropagation ; Musa spp. ; Phytohormones Subject RIV EB - Genetics ; Molecular Biology R&D Projects LO1204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UEB-Q - RVO:61389030 UT WOS 000328725700010 DOI 10.1016/j.plantsci.2013.09.012 Annotation Endogenous cytokinin (CK) levels of in vitro-cultured and greenhouse-acclimatized 'Williams' bananas treated with six aromatic CKs were quantified using UPLC-MS/MS. The underground parts had higher endogenous CK levels than the aerial parts. Control plantlets had more isoprenoid CKs while the aromatic-type CKs were predominant in all other regenerants. Following acclimatization of the control and 10 mu M CK regenerants, there was a rapid decline in both isoprenoid and aromatic CK in the greenhouse-grown plants. Apart from the control and 6-(3-Methoxybenzylamino)-9-tetrahydropyran-2-ylpurine (MemTTHP) treatment with higher level of isoprenoid CK, aromatic CK remain the predominant CK-type across all CK treatments. The most abundant CK forms were meta-topolin (mT) and benzyladenine (BA) in the micropropagated and acclimatized plants, respectively. Micropropagated plantlets had cis-Zeatin (cZ) as the major isoprenoid CK-type which was in turn replaced by isopentenyladenine (iP) upon acclimatization. On a structural and functional basis, 9-glucoside, a deactivation/detoxicification product was the most abundant and mainly located in the underground parts (micropropagation and acclimatization). The results establish the wide variation in metabolic products of the tested aromatic CKs during micropropagation and acclimatization. The findings are discussed with the possible physiological roles of the various CK constituents on the growth and development of banana plants. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2015
Number of the records: 1