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Physiological responses and endogenous cytokinin profiles of tissue-cultured 'Williams' bananas in relation to roscovitine and an inhibitor of cytokinin oxidase/dehydrogenase (INCYDE) treatments
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SYSNO ASEP 0385989 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Physiological responses and endogenous cytokinin profiles of tissue-cultured 'Williams' bananas in relation to roscovitine and an inhibitor of cytokinin oxidase/dehydrogenase (INCYDE) treatments Author(s) Aremu, A.O. (ZA)
Bairu, M. W. (ZA)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Plačková, Lenka (UEB-Q) ORCID, RID
Zatloukal, Marek (UEB-Q) ORCID
Doležal, Karel (UEB-Q) RID, ORCID
Finnie, J.F. (ZA)
Strnad, Miroslav (UEB-Q) RID, ORCID
van Staden, J. (ZA)Source Title Planta. - : Springer - ISSN 0032-0935
Roč. 236, č. 6 (2012), s. 1775-1790Number of pages 16 s. Language eng - English Country DE - Germany Keywords Cyclin-dependent kinase ; Cytokinin metabolism ; Micropropagation Subject RIV EB - Genetics ; Molecular Biology CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000311398100009 DOI 10.1007/s00425-012-1721-z Annotation The effect of supplementing either meta-topolin (mT) or N (6)-benzyladenine (BA) requiring cultures with roscovitine (6-benzylamino-2-[1(R)-(hydroxymethyl)propyl]amino-9-isopropylpurine), a cyclin-dependent kinase (CDK) and N-glucosylation inhibitor, and INCYDE (2-chloro-6-(3-methoxyphenyl)aminopurine), an inhibitor of cytokinin (CK) degradation, on the endogenous CK profiles and physiology of banana in vitro was investigated. Growth parameters including multiplication rate and biomass were recorded after 42 days. Endogenous CK levels were quantified using UPLC-MS/MS while the photosynthetic pigment and phenolic contents were evaluated spectrophotometrically. The highest regeneration rate (93 %) was observed in BA + roscovitine while mT + INCYDE plantlets produced most shoots. Treatment with BA + roscovitine had the highest shoot length and biomass. Although not significant, there was a higher proanthocyanidin level in BA + roscovitine treatments compared to the control (BA). The levels of total phenolics and flavonoids were significantly higher in mT + roscovitine treatment than in the mT-treated regenerants. The presence of roscovitine and/or INCYDE had no significant effect on the photosynthetic pigments of the banana plantlets. Forty-seven aromatic and isoprenoid CKs categorized into nine CK-types were detected at varying concentrations. The presence of mT + roscovitine and/or INCYDE increased the levels of O-glucosides while 9-glucosides were higher in the presence of BA. Generally, the underground parts had higher CK levels than the aerial parts; however, the presence of INCYDE increased the level of CK quantified in the aerial parts. From a practical perspective, the use of roscovitine and INCYDE in micropropagation could be crucial in the alleviation of commonly observed in vitro-induced physiological abnormalities. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2013
Number of the records: 1