Sifting the elements of FNR-TROL bifurcation (CROSBI ID 665419)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Fulgosi, Hrvoje ; Vojta, Lea ; Rac, Anja
engleski
Sifting the elements of FNR-TROL bifurcation
The last step of photosynthetic light-to-chemical energy conversion is the electron transfer from reduced ferredoxin (Fd) to NADP+. This reaction is catalysed by the flavoenzyme FNR (ferredoxin:NADP+ oxidoreductase), which utilizes two reduced Fds to produce one molecule of NADPH. In order to prevent Fd from promiscuous electron partitioning, the electron transfer reaction Fd>FNR>NADPH has to proceed rapidly and preferentially at the vicinity of photosystem I. FNR dimer is tethered to vascular plant photosynthetic membranes via an integral membrane protein TROL (thylakoid rhodanase-like protein). Soluble protein Tic62 also participates in FNR sequestration and activity control. FNR-TROL interaction prioritizes linear electron transfer (LET). When FNR complex is released from the TROL, highly efficient electron sink is activated. This pathway is faster than methyl viologen-mediated ROS propagation and represents so far undescribed mechanism of photosynthesis regulation. Apart from thylakoid membranes, TROL is targeted to the inner chloroplast envelope. Apparently, regulation involving stromal processing peptidase is crucial for this sorting. Finally, FNR-TROL bifurcation is embedded into redox responses of the entire plant and may even represent the source element linking
photosynthesis ; ROS ; anthocyanins ; protein import and sorting ; EPR ; PAM
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
45-45.
2018.
objavljeno
Podaci o matičnoj publikaciji
Book of abstracts of the 3rd International Conference on Plant Biology and 22nd SPPS Meeting
Uzelac, Branka
Beograd: Društvo za fiziologiju biljaka Srbije
978-86-912591-4-3
Podaci o skupu
3rd International Conference on Plant Biology ; 22nd SPPS Meeting
ostalo
09.06.2018-12.06.2018
Beograd, Srbija