Differential Antioxidant Response to Supplemental UV-B Irradiation and Sunlight in Three Basil Varieties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583894" target="_blank" >RIV/60077344:_____/23:00583894 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1422-0067/24/20/15350" target="_blank" >https://www.mdpi.com/1422-0067/24/20/15350</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms242015350" target="_blank" >10.3390/ijms242015350</a>
Alternative languages
Result language
angličtina
Original language name
Differential Antioxidant Response to Supplemental UV-B Irradiation and Sunlight in Three Basil Varieties
Original language description
Three basil plant varieties (Ocimum basilicum var. Genovese, Ocimum x citriodorum, and Ocimum basilicum var. purpurascens) were grown under moderate light (about 300 mu mol photons m(-2) s(-1)) in a glasshouse or growth chamber and then either transferred to an open field (average daily dose: 29.2 kJ m(-2) d-1) or additionally exposed to UV-B irradiation in a growth chamber (29.16 kJ m(-2) d(-1)), to reveal the variety-specific and light-specific acclimation responses. Total antioxidant capacity (TAC), phenolic profile, ascorbate content, and class III peroxidase (POD) activity were used to determine the antioxidant status of leaves under all four light regimes. Exposure to high solar irradiation at the open field resulted in an increase in TAC, total hydroxycinnamic acids (HCAs, especially caffeic acid), flavonoids, and epidermal UV-absorbing substances in all three varieties, as well as a two-fold increase in the leaf dry/fresh weight ratio. The supplemental UV-B irradiation induced preferential accumulation of HCAs (rosmarinic acid) over flavonoids, increased TAC and POD activity, but decreased the ascorbate content in the leaves, and inhibited the accumulation of epidermal flavonoids in all basil varieties. Furthermore, characteristic leaf curling and UV-B-induced inhibition of plant growth were observed in all basil varieties, while a pro-oxidant effect of UV-B was indicated with H2O2 accumulation in the leaves and spotty leaf browning. The extent of these morphological changes, and oxidative damage depended on the basil cultivar, implies a genotype-specific tolerance mechanism to high doses of UV-B irradiation.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/EF15_003%2F0000336" target="_blank" >EF15_003/0000336: Metals, plants and people</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Molecular Sciences
ISSN
1661-6596
e-ISSN
—
Volume of the periodical
24
Issue of the periodical within the volume
20
Country of publishing house
CH - SWITZERLAND
Number of pages
18
Pages from-to
15350
UT code for WoS article
001099423700001
EID of the result in the Scopus database
2-s2.0-85175277079