Počet záznamů: 1
UV Radiation Induces Specific Changes in the Carotenoid Profile of Arabidopsis thaliana
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SYSNO ASEP 0566430 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název UV Radiation Induces Specific Changes in the Carotenoid Profile of Arabidopsis thaliana Tvůrce(i) Badmus, U. (IE)
Crestani, G. (IE)
Cunningham, N. (IE)
Havaux, M. (FR)
Urban, Otmar (UEK-B) RID, ORCID, SAI
Jansen, Marcel Arnold Karsten (UEK-B)Celkový počet autorů 6 Číslo článku 1879 Zdroj.dok. Biomolecules. - : MDPI
Roč. 12, č. 12 (2022)Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova carotenoid ; xanthophyll ; photoreceptor ; photosynthesis ; arabidopsis ; uv-b Vědní obor RIV CE - Biochemie Obor OECD Biochemistry and molecular biology CEP EF16_019/0000797 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 UT WOS 000900467300001 EID SCOPUS 85144513662 DOI 10.3390/biom12121879 Anotace UV-B and UV-A radiation are natural components of solar radiation that can cause plant stress, as well as induce a range of acclimatory responses mediated by photoreceptors. UV-mediated accumulation of flavonoids and glucosinolates is well documented, but much less is known about UV effects on carotenoid content. Carotenoids are involved in a range of plant physiological processes, including photoprotection of the photosynthetic machinery. UV-induced changes in carotenoid profile were quantified in plants (Arabidopsis thaliana) exposed for up to ten days to supplemental UV radiation under growth chamber conditions. UV induces specific changes in carotenoid profile, including increases in antheraxanthin, neoxanthin, violaxanthin and lutein contents in leaves. The extent of induction was dependent on exposure duration. No individual UV-B (UVR8) or UV-A (Cryptochrome or Phototropin) photoreceptor was found to mediate this induction. Remarkably, UV-induced accumulation of violaxanthin could not be linked to protection of the photosynthetic machinery from UV damage, questioning the functional relevance of this UV response. Here, it is argued that plants exploit UV radiation as a proxy for other stressors. Thus, it is speculated that the function of UV-induced alterations in carotenoid profile is not UV protection, but rather protection against other environmental stressors such as high intensity visible light that will normally accompany UV radiation. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2023 Elektronická adresa https://www.mdpi.com/2218-273X/12/12/1879
Počet záznamů: 1