Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light
Alterations in photosynthetic performance of lutein-deficient mutant lut2 and wild type (wt) of Arabidopsis thaliana were followed after treatment with low temperature and high light for 6 d. The obtained results indicated lower electrolyte leakage, lower excitation pressure, and higher actual photo...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2022-03-01
|
| Series: | Photosynthetica |
| Subjects: | |
| Online Access: | https://ps.ueb.cas.cz/artkey/phs-202201-0011_photosynthetic-response-of-lutein-deficient-mutant-lut2-of-arabidopsis-thaliana-to-low-temperature-at-high-ligh.php |
| _version_ | 1818284560292511744 |
|---|---|
| author | A.V. POPOVA R. VLADKOVA P. BORISOVA K. GEORGIEVA G. MIHAILOVA V. VELIKOVA T. TSONEV A.G. IVANOV |
| author_facet | A.V. POPOVA R. VLADKOVA P. BORISOVA K. GEORGIEVA G. MIHAILOVA V. VELIKOVA T. TSONEV A.G. IVANOV |
| author_sort | A.V. POPOVA |
| collection | DOAJ |
| description | Alterations in photosynthetic performance of lutein-deficient mutant lut2 and wild type (wt) of Arabidopsis thaliana were followed after treatment with low temperature and high light for 6 d. The obtained results indicated lower electrolyte leakage, lower excitation pressure, and higher actual photochemical efficiency of PSII in lut2 plants exposed to combined stress compared to wt plants. This implies that lut2 is less susceptible to the applied stress conditions. The observed lower values of quantum efficiency of nonphotochemical quenching and energy-dependent component of nonphotochemical quenching in lut2 suggest that nonphotochemical quenching mechanism(s) localized within LHCII could not be involved in the acquisition of higher stress tolerance of lut2 and alternatives to nonphotochemical quenching mechanisms are involved for dissipation of excess absorbed light. We suggest that the observed enhanced capacity for cyclic electron flow and the higher oxidation state of P700 (P700+), which suggests PSI-dependent energy quenching in lut2 plants may serve as efficient photoprotective mechanisms, thus explaining the lower susceptibility of lut2 to the combined stress treatments. |
| first_indexed | 2024-12-13T00:54:45Z |
| format | Article |
| id | doaj.art-5f2a0afc442045d99cac2aa2cbf9b358 |
| institution | Directory Open Access Journal |
| issn | 0300-3604 1573-9058 |
| language | English |
| last_indexed | 2024-12-13T00:54:45Z |
| publishDate | 2022-03-01 |
| publisher | Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
| record_format | Article |
| series | Photosynthetica |
| spelling | doaj.art-5f2a0afc442045d99cac2aa2cbf9b3582022-12-22T00:04:49ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582022-03-0160111012010.32615/ps.2022.009phs-202201-0011Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high lightA.V. POPOVA0R. VLADKOVA1P. BORISOVA2K. GEORGIEVA3G. MIHAILOVA4V. VELIKOVA5T. TSONEV6A.G. IVANOV7Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaInstitute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, BulgariaAlterations in photosynthetic performance of lutein-deficient mutant lut2 and wild type (wt) of Arabidopsis thaliana were followed after treatment with low temperature and high light for 6 d. The obtained results indicated lower electrolyte leakage, lower excitation pressure, and higher actual photochemical efficiency of PSII in lut2 plants exposed to combined stress compared to wt plants. This implies that lut2 is less susceptible to the applied stress conditions. The observed lower values of quantum efficiency of nonphotochemical quenching and energy-dependent component of nonphotochemical quenching in lut2 suggest that nonphotochemical quenching mechanism(s) localized within LHCII could not be involved in the acquisition of higher stress tolerance of lut2 and alternatives to nonphotochemical quenching mechanisms are involved for dissipation of excess absorbed light. We suggest that the observed enhanced capacity for cyclic electron flow and the higher oxidation state of P700 (P700+), which suggests PSI-dependent energy quenching in lut2 plants may serve as efficient photoprotective mechanisms, thus explaining the lower susceptibility of lut2 to the combined stress treatments.https://ps.ueb.cas.cz/artkey/phs-202201-0011_photosynthetic-response-of-lutein-deficient-mutant-lut2-of-arabidopsis-thaliana-to-low-temperature-at-high-ligh.phpabiotic stresscarotenoid mutantenergy partitioningphotoprotectionphotosynthetic performance |
| spellingShingle | A.V. POPOVA R. VLADKOVA P. BORISOVA K. GEORGIEVA G. MIHAILOVA V. VELIKOVA T. TSONEV A.G. IVANOV Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light Photosynthetica abiotic stress carotenoid mutant energy partitioning photoprotection photosynthetic performance |
| title | Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light |
| title_full | Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light |
| title_fullStr | Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light |
| title_full_unstemmed | Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light |
| title_short | Photosynthetic response of lutein-deficient mutant lut2 of Arabidopsis thaliana to low temperature at high light |
| title_sort | photosynthetic response of lutein deficient mutant lut2 of arabidopsis thaliana to low temperature at high light |
| topic | abiotic stress carotenoid mutant energy partitioning photoprotection photosynthetic performance |
| url | https://ps.ueb.cas.cz/artkey/phs-202201-0011_photosynthetic-response-of-lutein-deficient-mutant-lut2-of-arabidopsis-thaliana-to-low-temperature-at-high-ligh.php |
| work_keys_str_mv | AT avpopova photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT rvladkova photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT pborisova photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT kgeorgieva photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT gmihailova photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT vvelikova photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT ttsonev photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight AT agivanov photosyntheticresponseofluteindeficientmutantlut2ofarabidopsisthalianatolowtemperatureathighlight |