title: Physiological and antioxidant responses of two accessions of Arabidopsis thaliana in different light and temperature conditions.
abstract: During their lifetime, plants need to adapt to a changing environment, including light and temperature. To understand how these factors influence plant growth, we investigated the physiological and antioxidant responses of two Arabidopsis accessions, Shahdara (Sha) from the Shahdara valley (Tajikistan, Central Asia) in a mountainous area and Lovvik-5 (Lov-5) from northern Sweden to different light and temperature conditions. These accessions originate from different latitudes and have different life strategies, both of which are known to be influenced by light and temperature. We showed that both accessions grew better in high-light and at a lower temperature (16°C) than in low light and at 23°C. Interestingly, Sha had a lower chlorophyll content but more efficient non-photochemical quenching than Lov-5. Sha, also showed a higher expression of vitamin E biosynthetic genes. We did not observe any difference in the antioxidant prenyllipid level under these conditions. Our results suggest that the mechanisms that keep the plastoquinone (PQ)-pool in more oxidized state could play a role in the adaptation of these accessions to their local climatic conditions.
authors.affiliation: Department of Medical Physics and Biophysics, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Krakow, 30-059, Poland.
authors.forename: Renata
authors.initials: R
authors.lastname: Szymańska
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland.
authors.forename: Beatrycze
authors.initials: B
authors.lastname: Nowicka
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Gabruk
authors.affiliation: Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, 90-237, Poland.
authors.forename: Sława
authors.initials: S
authors.lastname: Glińska
authors.affiliation: Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, 90-237, Poland.
authors.forename: Sylwia
authors.initials: S
authors.lastname: Michlewska
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland.
authors.forename: Jolanta
authors.initials: J
authors.lastname: Dłużewska
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Sawicka
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, Krakow, 30-387, Poland.
authors.forename: Jerzy
authors.initials: J
authors.lastname: Kruk
authors.affiliation: Max-Planck-Institute of Molecular Plant Physiology, Molecular Mechanisms of Adaptation, Potsdam-Golm, 14476, Germany.
authors.forename: Roosa
authors.initials: R
authors.lastname: Laitinen
mesh_terms: D000064:Acclimatization; D000975:Antioxidants / Q000378:metabolism*; D017360:Arabidopsis / Q000235:genetics / Q000502:physiology* / Q000528:radiation effects / Q000648:ultrastructure; D002734:Chlorophyll / Q000378:metabolism; D008027:Light; D010084:Oxidation-Reduction; D018515:Plant Leaves / Q000235:genetics / Q000502:physiology / Q000528:radiation effects / Q000648:ultrastructure; D010971:Plastoquinone / Q000378:metabolism; D013548:Sweden; D013696:Temperature
chemical_list: D000975:Antioxidants; D002734:Chlorophyll; D010971:Plastoquinone