Endogenous cytokinin profiles of tissue-cultured and acclimatized 'Williams' bananas subjected to different aromatic cytokinin treatments
Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.
Veröffentlicht in: | Plant science : an international journal of experimental plant biology. - 1985. - 214(2014) vom: 19. Jan., Seite 88-98 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2014
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Zugriff auf das übergeordnete Werk: | Plant science : an international journal of experimental plant biology |
Schlagworte: | Journal Article Research Support, Non-U.S. Gov't 6-(3-Methoxybenzylamino)-9-tetrahydropyran-2-ylpurine BA BA9G BAR BAR5′MP CDK CK Cyclin-dependent kinase mehr... |
Zusammenfassung: | Copyright © 2013 Elsevier Ireland Ltd. All rights reserved. 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 μM 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 |
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Beschreibung: | Date Completed 25.07.2014 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
ISSN: | 1873-2259 |
DOI: | 10.1016/j.plantsci.2013.09.012 |