Effect of drought stress on the photosynthesis of Acacia tortilis subsp. raddiana at the young seedling stage
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| 024 | 7 | 0 | |a 10.1007/s11099-015-0113-6 |2 doi |
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| 245 | 0 | 0 | |a Effect of drought stress on the photosynthesis of Acacia tortilis subsp. raddiana at the young seedling stage |h [Elektronische Daten] |c [S. Kebbas, S. Lutts, F. Aid] |
| 520 | 3 | |a Water stress usually impairs photosynthesis and plant growth. Acacia tortilis subsp. raddiana is well adapted to dry environments. The aim of the present study was to determine the impact of a progressive decrease in soil water content on photosynthetic-related parameters at the young seedling stage. Drought-induced plant responses occurred according to two types of kinetics. Water potential, stomatal conductance, and transpiration rates were rapidly affected by a decrease in soil water content, while chlorophyll fluorescence-related parameters and chlorophyll concentrations decreased only when soil water content was lower than 40%. The maximal efficiency of PSII photochemistry in the dark-adapted state remained unaffected by the treatment, whatever the stress duration. A. raddiana accumulated high concentrations of soluble sugars in relation to a stress-induced early stimulation of sucrose-phosphate synthase activity, while stimulation of invertase and sucrose synthase led to fructose accumulation only at the end of the stress period. We suggested that sugar accumulation may be involved in osmotic adjustment and protection of stressed tissues. A. raddiana was thus able to protect its photosynthetic machinery under drought conditions and may be considered as a promising species for revegetation of dry areas. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a gas exchange |2 nationallicence | |
| 690 | 7 | |a growth parameters |2 nationallicence | |
| 690 | 7 | |a stomata |2 nationallicence | |
| 690 | 7 | |a sugar metabolism |2 nationallicence | |
| 690 | 7 | |a water-use efficiency |2 nationallicence | |
| 690 | 7 | |a Chl : chlorophyll |2 nationallicence | |
| 690 | 7 | |a DM : dry mass |2 nationallicence | |
| 690 | 7 | |a E : instantaneous transpiration |2 nationallicence | |
| 690 | 7 | |a ED : density of epidermal pavement cells |2 nationallicence | |
| 690 | 7 | |a ETR : electron transfer rate |2 nationallicence | |
| 690 | 7 | |a F0 : the minimal fluorescence in the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a Fm : the maximal fluorescence in the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a FM : fresh mass |2 nationallicence | |
| 690 | 7 | |a g s : stomatal conductance |2 nationallicence | |
| 690 | 7 | |a LA : leaf area |2 nationallicence | |
| 690 | 7 | |a NPQ : nonphotochemical quenching |2 nationallicence | |
| 690 | 7 | |a P N : net photosynthesis |2 nationallicence | |
| 690 | 7 | |a qP : photochemical quenching |2 nationallicence | |
| 690 | 7 | |a RWC : relative water content |2 nationallicence | |
| 690 | 7 | |a SD : stomatal density |2 nationallicence | |
| 690 | 7 | |a SI : stomatal index |2 nationallicence | |
| 690 | 7 | |a SLA : specific leaf area |2 nationallicence | |
| 690 | 7 | |a SPS : sucrose-phosphate-synthase |2 nationallicence | |
| 690 | 7 | |a SuSy : sucrose synthase |2 nationallicence | |
| 690 | 7 | |a SWC : soil water content |2 nationallicence | |
| 690 | 7 | |a WUE : water-use efficiency |2 nationallicence | |
| 690 | 7 | |a ΨW : shoot water potential |2 nationallicence | |
| 690 | 7 | |a ΨS : shoot osmotic potential |2 nationallicence | |
| 690 | 7 | |a ΦPSII : actual PSII efficiency |2 nationallicence | |
| 700 | 1 | |a Kebbas |D S. |u Département de Biologie, Faculté des Sciences de la Nature et de la Vie, Université Blida 1, route de Soumaa, BP 270, 09100, Blida, Algeria |4 aut | |
| 700 | 1 | |a Lutts |D S. |u Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, 5 Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium |4 aut | |
| 700 | 1 | |a Aid |D F. |u Equipe de Physiologie Végétale, LBPO, FSB, Université des Sciences et de la Technologie Houari Boumediene, BP 32 El Alia, 16111, Bab Ezzouar-Algiers, Algeria |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/2(2015-06-01), 288-298 |x 0300-3604 |q 53:2<288 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0113-6 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11099-015-0113-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kebbas |D S. |u Département de Biologie, Faculté des Sciences de la Nature et de la Vie, Université Blida 1, route de Soumaa, BP 270, 09100, Blida, Algeria |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Lutts |D S. |u Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, 5 Place Croix du Sud, 1348, Louvain-la-Neuve, Belgium |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Aid |D F. |u Equipe de Physiologie Végétale, LBPO, FSB, Université des Sciences et de la Technologie Houari Boumediene, BP 32 El Alia, 16111, Bab Ezzouar-Algiers, Algeria |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/2(2015-06-01), 288-298 |x 0300-3604 |q 53:2<288 |1 2015 |2 53 |o 11099 | ||