Photosynthetic Properties of Photosystem II in Arabidopsis thaliana Ipa1 Mutant
| العنوان: | Photosynthetic Properties of Photosystem II in Arabidopsis thaliana Ipa1 Mutant |
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| المؤلفون: | Wei Chi, Jinfang Ma, Lixin Zhang, Jinkui Guo, Lianwei Peng |
| المصدر: | Journal of Integrative Plant Biology. 48:1424-1430 |
| بيانات النشر: | Wiley, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Photosynthetic reaction centre, biology, Photosystem II, Chemistry, Mutant, food and beverages, macromolecular substances, Plant Science, Photosynthesis, biology.organism_classification, Biochemistry, General Biochemistry, Genetics and Molecular Biology, Light intensity, Botany, Biophysics, Arabidopsis thaliana, Chlorophyll fluorescence, Photosystem |
| الوصف: | In a previous study, we characterized a high chlorophyll fluorescence Ipa1 mutant of Arabidopsis thaliana, in which approximately 20% photosystem (PS) II protein is accumulated. In the present study, analysis of fluorescence decay kinetics and thermoluminescence profiles demonstrated that the electron transfer reaction on either the donor or acceptor side of PSII remained largely unaffected in the Ipa1 mutant. In the mutant, maximal photochemical efficiency (Fv/Fm, where Fm is the maximum fluorescence yield and Fv is variable fluorescence) decreased with increasing light intensity and remained almost unchanged in wild-type plants under different light conditions. The Fv/Fm values also increased when mutant plants were transferred from standard growth light to low light conditions. Analysis of PSII protein accumulation further confirmed that the amount of PSII reaction center protein is correlated with changes in Fv/Fm in Ipa1 plants. Thus, the assembled PSII in the mutant was functional and also showed increased photosensitivity compared with wild-type plants. (Managing editor: Ping He) |
| تدمد: | 1744-7909 1672-9072 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b6122bc537ac734ad255058c21934361 https://doi.org/10.1111/j.1744-7909.2006.00385.x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........b6122bc537ac734ad255058c21934361 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17447909 16729072 |
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