Počet záznamů: 1
Accumulation of geranylgeranylated chlorophylls in the pigment-protein complexes of Arabidopsis thaliana acclimated to green light: effects on the organization of light-harvesting complex II and photosystem II functions
- 1.
SYSNO ASEP 0545930 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Accumulation of geranylgeranylated chlorophylls in the pigment-protein complexes of Arabidopsis thaliana acclimated to green light: effects on the organization of light-harvesting complex II and photosystem II functions Tvůrce(i) Karlický, Václav (UEK-B) ORCID, RID, SAI
Materová Kmecová, Z. (CZ)
Kurasová, Irena (UEK-B)
Nezval, J. (CZ)
Štroch, Michal (UEK-B) RID, SAI, ORCID
Garab, G. (HU)
Špunda, Vladimír (UEK-B) ORCID, SAI, RIDCelkový počet autorů 7 Zdroj.dok. Photosynthesis Research. - : Springer - ISSN 0166-8595
Roč. 149, č. 1-2 (2021), s. 233-252Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova chloroplast thylakoid membranes ; energy-transfer pathways ; circular-dichroism ; tobacco plants ; photosynthetic activity ; thermal-stability ; alpha-tocopherol ; rice mutants ; reductase ; fluorescence ; Arabidopsis thaliana ; Chlorophylls ; Green light ; Thylakoid membrane ; Structure and function of photosystem II ; Thermal stability Vědní obor RIV BO - Biofyzika Obor OECD Biophysics CEP EF16_019/0000797 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LM2018123 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 UT WOS 000647058700001 EID SCOPUS 85105230562 DOI 10.1007/s11120-021-00827-1 Anotace Light quality significantly influences plant metabolism, growth and development. Recently, we have demonstrated that leaves of barley and other plant species grown under monochromatic green light (500-590 nm) accumulated a large pool of chlorophyll a (Chl a) intermediates with incomplete hydrogenation of their phytyl chains. In this work, we studied accumulation of these geranylgeranylated Chls a and b in pigment-protein complexes (PPCs) of Arabidopsis plants acclimated to green light and their structural-functional consequences on the photosynthetic apparatus. We found that geranylgeranylated Chls are present in all major PPCs, although their presence was more pronounced in light-harvesting complex II (LHCII) and less prominent in supercomplexes of photosystem II (PSII). Accumulation of geranylgeranylated Chls hampered the formation of PSII and PSI super- and megacomplexes in the thylakoid membranes as well as their assembly into chiral macrodomains, it also lowered the temperature stability of the PPCs, especially that of LHCII trimers, which led to their monomerization and an anomaly in the photoprotective mechanism of non-photochemical quenching. Role of geranylgeranylated Chls in adverse effects on photosynthetic apparatus of plants acclimated to green light is discussed. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2022 Elektronická adresa https://link.springer.com/article/10.1007%2Fs11120-021-00827-1
Počet záznamů: 1