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Effect of abscisic acid on photosynthetic parameters during ex vitro transfer of micropropagated tobacco plantlets
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SYSNO ASEP 0336069 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of abscisic acid on photosynthetic parameters during ex vitro transfer of micropropagated tobacco plantlets Author(s) Pospíšilová, Jana (UEB-Q) RID
Synková, Helena (UEB-Q) RID, ORCID
Haisel, Daniel (UEB-Q) RID, ORCID
Baťková, Petra (UEB-Q)Source Title Biologia Plantarum. - : Ústav experimentální botaniky AV ČR, v. v. i. - ISSN 0006-3134
Roč. 53, č. 1 (2009), s. 11-20Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords carotenoids ; chlorophyll contents ; chlorophyll fluorescence Subject RIV ED - Physiology R&D Projects GA522/07/0227 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000264462800003 DOI 10.1007/s10535-009-0003-5 Annotation The aim of this research was to determine whether exogenous abscisic acid (ABA) applied immediately after ex vitro transfer of in vitro grown plants can improve their acclimatization. Tobacco (Nicotiana tabacum L.) plantlets were transferred into pots with Perlite initially moistened either by water or 50 A mu M ABA solution and they were grown under low (LI) or high (HI) irradiance of 150 and 700 A mu mol m(-2) s(-1), respectively. Endogenous content of ABA in tobacco leaves increased considerably after ABA application and even more in plants grown under HI. Stomatal conductance, transpiration rate and net photosynthetic rate decreased considerably 1 d after ex vitro transfer and increased thereafter. The gas exchange parameters were further decreased by ABA application and so wilting of these plants was limited. Chlorophyll (a+b) and beta-carotene contents were higher in ABA-treated plants, but the content of xanthophyll cycle pigments was not increased. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2010
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