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Content of carotenoids during ageing and senescence of tobacco leaves with genetically modulated life-span

SYSNO ASEP	0335871
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Content of carotenoids during ageing and senescence of tobacco leaves with genetically modulated life-span
Author(s)	Procházková, Dagmar (UEB-Q)_RID Haisel, Daniel (UEB-Q)_{RID, ORCID} Wilhelmová, Naděžda (UEB-Q)_{RID, ORCID}
Source Title	Photosynthetica. - : Ústav experimentální botaniky AV ČR, v. v. i. - ISSN 0300-3604 Roč. 47, č. 3 (2009), s. 409-413
Number of pages	6 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	cytokinin ; reactive oxygen species ; xanthophylls
Subject RIV	ED - Physiology
R&D Projects	GP522/05/P558 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z50380511 - UEB-Q (2005-2011)
UT WOS	000271672900012
DOI	10.1007/s11099-009-0062-z
Annotation	We exploited leaves of tobacco (Nicotiana tabacum L., cv. Wisconsin 38) with introduced chimeric construct consisting of SAG12 promoter fused with ipt gene for cytokinin synthesis and therefore prolonged life-span. As a control we used its wild type. In 12-week-old plants, the first leaves of control plants showed senescence symptoms at the time of sampling. Carotenoid content decreased with increasing leaf age both in control and in transgenic plants. On the other hand, the first leaves of transgenic plants demonstrated better antioxidant capacity represented by carotenoids compared to the leaves of control plants of the same age. They stayed still green at this age.
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