A Psb27 homologue in Arabidopsis thaliana is required for efficient repair of photodamaged photosystem II
| العنوان: | A Psb27 homologue in Arabidopsis thaliana is required for efficient repair of photodamaged photosystem II |
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| المؤلفون: | Qingtao Lu, Meifang Jin, Dongyuan Zhang, Hua Chen, Congming Lu, Lixin Zhang, Hao Wu, Jinkui Guo |
| المصدر: | Plant Molecular Biology. 61:567-575 |
| بيانات النشر: | Springer Science and Business Media LLC, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Photosynthetic reaction centre, Time Factors, Photoinhibition, Light, Photosystem II, Mutant, Arabidopsis, macromolecular substances, Plant Science, Protein degradation, Thylakoids, Gene Expression Regulation, Plant, Genetics, Arabidopsis thaliana, biology, Arabidopsis Proteins, Photosystem II Protein Complex, food and beverages, General Medicine, biology.organism_classification, Chloroplast, Biochemistry, Mutation, Biophysics, Agronomy and Crop Science |
| الوصف: | Psb27 has been identified as a lumenal protein associated with photosystem II (PSII). To gain insight into the function of Psb27, we isolated a mutant Arabidopsis plant with a loss of psb27 function. The quantity of PSII complexes and electron transfer within PSII remained largely unaffected in the psb27 mutant. Our results also showed that under high-light-illumination, PSII activity and the content of the PSII reaction center protein D1 decreased more significantly in the psb27 mutant than in wild-type (WT) plant. Treatment of leaves with a chloroplast protein synthesis inhibitor resulted in similar light-induced PSII inactivation levels and D1 protein degradation rates in the WT and psb27 mutant plants. Recovery of PSII activity after photoinhibition was delayed in the psb27 mutant, suggesting that Psb27 is required for efficient recovery of the photodamaged PSII complex. Overall, these results demonstrated that Psb27 in Arabidopsis is not essential for oxygenic photosynthesis and PSII formation. Instead, our results provide evidence for the involvement of this lumenal protein in the recovery process of PSII. |
| تدمد: | 1573-5028 0167-4412 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c8fdfb89a0c9ef934c4efe1efc5455c https://doi.org/10.1007/s11103-006-0031-x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....8c8fdfb89a0c9ef934c4efe1efc5455c |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15735028 01674412 |
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