Academic Journal
Functional characterization of mutants affected in the carbonic anhydrase domain of the respiratory complex I in Arabidopsis thaliana
| العنوان: | Functional characterization of mutants affected in the carbonic anhydrase domain of the respiratory complex I in Arabidopsis thaliana |
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| المؤلفون: | Soto, Débora, Cordoba, Juan Pablo, Villarreal, Fernando Daniel, Bartoli, Carlos Guillermo, Schmitz, Jessica, Maurino, Veronica G., Braun, Hans Peter, Pagnussat, Gabriela Carolina, Zabaleta, Eduardo Julian |
| بيانات النشر: | Wiley |
| المجموعة: | CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: | Arabidopsis Thaliana, Γ-Carbonic Anhydrases, Mitochondria, Photorespiration, Carbon Recycling, https://purl.org/becyt/ford/1.6, https://purl.org/becyt/ford/1 |
| الوصف: | The NADH–ubiquinone oxidoreductase complex (complex I) (EC 1.6.5.3) is the main entrance site of electrons into the respiratory chain. In a variety of eukaryotic organisms, except animals and fungi (Opisthokonta), it contains an extra domain comprising trimers of putative γ–carbonic anhydrases, named the CA domain, which has been proposed to be essential for assembly of complex I. However, its physiological role in plants is not fully understood. Here, we report that Arabidopsis mutants defective in two CA subunits show an altered photorespiratory phenotype. Mutants grown in ambient air show growth retardation compared to wild–type plants, a feature that is reversed by cultivating plants in a high-CO2 atmosphere. Moreover, under photorespiratory conditions, carbon assimilation is diminished and glycine accumulates, suggesting an imbalance with respect to photorespiration. Additionally, transcript levels of specific CA subunits are reduced in plants grown under non-photorespiratory conditions. Taken together, these results suggest that the CA domain of plant complex I contributes to sustaining efficient photosynthesis under ambient (photorespiratory) conditions. ; Fil: Soto, Débora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina ; Fil: Cordoba, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina ; Fil: Villarreal, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina ; Fil: Bartoli, Carlos Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina ; Fil: Schmitz, ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0960-7412 1365-313X |
| Relation: | http://hdl.handle.net/11336/13329; Soto, Débora; Cordoba, Juan Pablo; Villarreal, Fernando Daniel; Bartoli, Carlos Guillermo; Schmitz, Jessica; et al.; Functional characterization of mutants affected in the carbonic anhydrase domain of the respiratory complex I in Arabidopsis thaliana; Wiley; Plant Journal; 83; 5; 9-2015; 831-844 |
| الاتاحة: | http://hdl.handle.net/11336/13329 |
| Rights: | info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
| رقم الانضمام: | edsbas.AD95100D |
| قاعدة البيانات: | BASE |
| تدمد: | 09607412 1365313X |
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