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Long-term and short-term effects of abscisic acid on plantlet acclimatization to ex vitro conditions
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SYSNO ASEP 0339833 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Long-term and short-term effects of abscisic acid on plantlet acclimatization to ex vitro conditions Author(s) Pospíšilová, Jana (UEB-Q) RID
Haisel, Daniel (UEB-Q) RID, ORCID
Synková, Helena (UEB-Q) RID, ORCID
Baťková, Petra (UEB-Q)Source Title Proceedings of "Congreso International de Biotecnología Vegetal". - Ciego de Avila : University of Ciego, 2009 Pages s. 1-6 Number of pages 6 s. Action Congreso International de Biotecnología Vegetal Event date 05.10.2009-07.10.2009 VEvent location Congreso International de Biotecnología Vegetal Country ES - Spain Event type WRD Language eng - English Country CU - Cuba 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) Annotation We applied ABA either to the last subculture (3 weeks; 10 mM ABA) or as single application (50 mM ABA) immediately after ex vitro transfer of tobacco plantlets. Transplanted plants were grown either under low (LI) or high (HI) irradiance of 150 and 700 mmol m-2 s-1, respectively. Endogenous content of ABA increased considerably after ABA application. Stomatal conductance, transpiration rate and net photosynthetic rate decreased considerably by ABA application and wilting of these plants was limited. Water use efficiency markedly increased due to ABA application. Chlorophyll a+b content was higher in ABA-treated plants. While long-term ABA application mainly decreased content of xanthophylls, short-term application decreased particularly degree of their deepoxidation. Both long-term and short-term applications of ABA improved acclimatization of in vitro grown plants to ex vitro conditions. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2010
Number of the records: 1