دورية أكاديمية
Can anthocyanin presence ameliorate the photosynthetic performance of Prunus saplings subjected to polyethylene glycol-simulated water stress?
| العنوان: | Can anthocyanin presence ameliorate the photosynthetic performance of Prunus saplings subjected to polyethylene glycol-simulated water stress? |
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| المؤلفون: | E. PICCOLO, M. LANDI, T. GIORDANI, G. LORENZINI, F. MALORGIO, R. MASSAI, C. NALI, E. PELLEGRINI, G. RALLO, D. REMORINI, P. VERNIERI, L. GUIDI |
| المصدر: | Photosynthetica, Vol 58, Iss 3, Pp 799-807 (2020) |
| بيانات النشر: | Academy of Sciences of the Czech Republic, Institute of Experimental Botany, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Botany |
| مصطلحات موضوعية: | chlorophyll a fluorescence, drought, photosystem ii, sugar metabolism, Botany, QK1-989 |
| الوصف: | The aim was the evaluation of the biochemical and physiological responses of green- (GP) and red-leafed (RP) Prunus cerasifera mature leaves to 20 d of polyethylene glycol (PEG 6000)-induced water stress in order to elucidate a possible ameliorative role exerted by anthocyanins. At 10 d, the anthocyanin content remained unchanged in RP water-stressed leaves. Photosynthetic rate was lower in GP than that of RP (83.4 vs. 76.5%, respectively), paralleled by a higher degree of photoinhibition (Fv/Fm) in GP leaves. Leaves of GP accounted for higher content of soluble sugars at 10 d, when RP only showed a slight sucrose increase. At 20 d of stress, both morphs recovered their Fv/Fm values, suggesting the ability of both genotypes to adjust their photosynthetic metabolism under conditions of water stress. In conclusion, besides the sunscreen role served by anthocyanins, the carbon sink by these flavonoids might have further prevented sugar accumulation and the consequent sugar-promoted feedback regulation of photosynthesis in drought-stressed red leaves. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0300-3604 1573-9058 |
| Relation: | https://ps.ueb.cas.cz/artkey/phs-202003-0014_can-anthocyanin-presence-ameliorate-the-photosynthetic-performance-of-prunus-saplings-subjected-to-polyethylen.php; https://doaj.org/toc/0300-3604; https://doaj.org/toc/1573-9058 |
| DOI: | 10.32615/ps.2020.017 |
| URL الوصول: | https://doaj.org/article/6e2fb6ccf9b54c2d9550a4013cb1425b |
| رقم الأكسشن: | edsdoj.6e2fb6ccf9b54c2d9550a4013cb1425b |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 03003604 15739058 |
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| DOI: | 10.32615/ps.2020.017 |