Naslov
Redoks regulacija fotosinteze - za Z-shemu potreban je TROL
(Redox regulation of photosynthesis - Z-scheme requires TROL)

Autori
Fulgosi, Hrvoje ; Jurić, Snježana ; Lepeduš, Hrvoje ; Hazler-Pilepić, Kroata ; Bionda, Tihana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka 9. hrvatskog biološkog kongresa s međunarodnim sudjelovanjem / Besendorfer, Višnja ; Klobučar, Goran I. V. - Zagreb : Hrvatsko biološko društvo, 2006, 172-173

ISBN
953-6241-06-4

Skup
9. hrvatski biološki kongres s međunarodnim sudjelovanjem

Mjesto i datum
Rovinj, Hrvatska, 23.09.2006. - 29.09.2006

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
chloroplast; photosynthesis; FNR; thylakoid membranes

Sažetak
Molecular mechanisms involved in regulation of the fundamental process of oxygenic photosynthesis appear to be much more complex then previously anticipated. Particularly, various auxiliary proteins linking photosynthesis with physiological responses are still missing. Recently, several protein kinases involved in photosystem II phosphorylation and photosynthetic acclimation have been characterized. It has been proposed that those processes are regulated via redox-state of the thylakoid membrane. By using antisense and gene inactivation strategies we have identified a novel component of non-apressed thylakoid membranes which is responsible for anchoring of ferredoxin-NAD(P)+ oxidoreductase, the enzyme which catalyses the final electron transfer of oxygenic photosynthesis from ferredoxin to NAD(P). Depletion of this integral membrane protein entitled TROL (thylakoid rhodanese-like protein) leads to an over-reduction of photosynthetic machinery in conditions of elevated light intensity. Thus, TROL is necessary for sustaining of linear electron flow, as well as for redox-regulation of key thylakoid signal-transduction pathways.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA