TY  - CONF
AU  - Erdélyi, Annabella
AU  - Valkai, Ildikó
AU  - Rigó, Gábor
AU  - Szepesi, Ágnes
AU  - Alexa, Dávid
AU  - Varga, Mónika
AU  - Koerber, Niklas
AU  - Fiorani, Fabio
AU  - Szabados, László
AU  - Zsigmond, Laura
TI  - Genetic analysis of mitochondrial functions and stress responses
SN  - 0891-5849
M1  - FZJ-2018-03191
PY  - 2018
AB  - Unfavorable environmental conditions limit plant growth and require extensive adaptation for survival. During abiotic stress, production of reactive oxygen species (ROS) can increase and create additional oxidative stress for the plants. Mitochondria regulate cellular energy homeostasis and redox balance by integrating metabolic pathways that are important in adaptive responses to stress conditions. In mitochondria, over-reduction of the electron transport chain is the primary reason for ROS accumulation, which can be reduced by protecting and stabilizing the electron flow. To reveal the function of genes encoding members of the mitochondrial electron transport in stress responses, we are characterizing 13 Arabidopsis thaliana mutants carrying mutations in genes encoding such proteins. When compared to wild type several mutants showed morphological and physiological changes under abiotic stress conditions. Phenotypic differences in tolerance to drought and salinity were revealed through in vitro germination and growth tests, as well as by complex phenotyping of soil-grown plants. Several mutants showed altered tolerance to osmotic, oxidative and salt stress. In some cases, we found a strong correlation between the mutations and the photosynthetic activity and energy production.
T2  - 19th Meeting of the International Society for Free Radical Research (SFRRI)
CY  - 4 Jun 2018 - 7 Jun 2018, Lisbon (Portugal)
Y2  - 4 Jun 2018 - 7 Jun 2018
M2  - Lisbon, Portugal
LB  - PUB:(DE-HGF)1
UR  - <Go to ISI:>//WOS:000432836500339
DO  - DOI:10.1016/j.freeradbiomed.2018.04.354
UR  - https://juser.fz-juelich.de/record/846021
ER  -