Characterization of lipid peroxidation products formed during ageing of tobacco leaves and effect of manipulated ageing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00531601" target="_blank" >RIV/61389030:_____/20:00531601 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11130/20:10411857
Result on the web
<a href="http://doi.org/10.1016/j.sajb.2020.05.005" target="_blank" >http://doi.org/10.1016/j.sajb.2020.05.005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sajb.2020.05.005" target="_blank" >10.1016/j.sajb.2020.05.005</a>
Alternative languages
Result language
angličtina
Original language name
Characterization of lipid peroxidation products formed during ageing of tobacco leaves and effect of manipulated ageing
Original language description
Lipid peroxidation is generally accepted to increase during ageing. We focused on stable lipid peroxidation end products, lipophilic fluorescent pigments (LFP). Their role in ageing in animal/human model has thoroughly been investigated. Changes in characteristics and quantity of LFP during tobacco leaf ageing were studied. We evaluated effect of altered ageing rate on LFP characteristics and accumulation. We employed plants with modulated cytokinins (CK) levels as they are plant hormones controlling development and ageing. Tobacco transgenic plants with senescence-induced CK up-regulation (SAG-ipt plants) displayed rejuvenation of senescent leaves. Slowed ageing was achieved in plants with constitutively down-regulated CK (CKX plants). Both 3D and synchronous fluorescence spectra of LFP indicate more marked differences of fluorophores´ compositions between two different control tobacco cultivars than between control and its transgenic plant. Major fluorophore amount increased with leaf age in both control and CKX plants, in SAG-ipt tobacco its quantity declined in the oldest leaves. The postponed leaf ageing in CKX plants resulted in a diminution of LFP. Higher LFP level in SAG-ipt plants compared with their control leaves of the same age was observed. LFP composition as well as relative abundance of individual LFP might be characteristic for each tobacco cultivar and depend on leaf age.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/GA522%2F03%2F0312" target="_blank" >GA522/03/0312: The study of the role of free radicals in regulation of senescence in plants</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
South African Journal of Botany
ISSN
0254-6299
e-ISSN
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Volume of the periodical
132
Issue of the periodical within the volume
Aug
Country of publishing house
ZA - SOUTH AFRICA
Number of pages
10
Pages from-to
258-267
UT code for WoS article
000554662800012
EID of the result in the Scopus database
2-s2.0-85086402082