Ameliorative effect of CaCl2 on growth, membrane permeability and nutrient uptake in Atriplex halimus subsp. schweinfurthii grown at high (NaCl) salinity

Nedjimi, Bouzid; Daoud, Youcef

doi:10.1016/j.desal.2009.01.019

Cited by 50 publications

(24 citation statements)

References 32 publications

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“…However, proline accumulation in the leaves was 8 times higher than that in the controls with a treatment of 160 mM NaCl + 10 mM CaCl 2 , whereas it was 5 times higher with NaCl alone. Other scientists reported similar results on the ameliorative effect of calcium (Kaya et al, 2007;Manivannan et al, 2007;Nedjimi and Daoud, 2009).…”

Section: Introductionsupporting

confidence: 66%

The examination of Na-Ca effect on some qualitative and quantitative characters in durum wheat plants

Duran¹,

Coşkun²,

Savaskan³

2011

Afr. J. Biotechnol.

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The effect of salt stress (NaCl) on shoot height (cm), root length (cm), dry and fresh weight (g), chlorophyll a and b, total chlorophyll (mg -1 ) and carotenoid amount was investigated in this study. In addition, the positive effects of Ca +2 (20 mM) were also investigated. Triticum durum Desf. Mirzabey, Kunduru-1149, and DH-6 and DH-8, derived from Kunduru-1149 using wide hybridization, were used as plant materials in this study. Arnon-Hoagland solution was used as food source for the plants and various NaCl concentrations (0, 50, 150 and 200 mM) and Ca +2 (as CaCl 2 ) were added to Arnon-Hoagland solution. The research was completed at the end of the fifth week and the effect of NaCl on the root length of genotypes was found to be significant (P<0.05). Ca +2 caused an increase in root length in all NaCl applications, except for the 200 mM NaCl, whereas shoot height decreased with increasing salt concentration, except for the 50 mM NaCl. This character also increased with Ca +2 application significantly. Dry and fresh weight of the plant decreased with increasing salt concentration. Ca +2 ameliorated dry and fresh weight of the plant at 50 mM NaCl in all the genoypes and NaCl doses, except for the Kunduru-1149 and DH-6. The highest increase in total chlorophyll amount was found in 50 mM NaCl + CaCl 2 in DH-8 (from 17.29 to 20.14 mg g -1 ). However, the rate of increase in the amount of carotenoid by the addition of Ca +2 was also determined for each genotype.

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Section: Introductionsupporting

confidence: 66%

The examination of Na-Ca effect on some qualitative and quantitative characters in durum wheat plants

Duran¹,

Coşkun²,

Savaskan³

2011

Afr. J. Biotechnol.

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“…Although mitigation of Na + toxicity by supplemental Ca 2+ was confirmed, the responses varied with different plants species. It was shown that, under saline conditions, Ca 2+ remarkably reduced Na + content and increased K + /Na + selectivity of both roots and shoots in Cenchrus penmsetiformis (Ashraf and Naqvi 1991), Medicago sativa (Al-Khateeb 2006), Atriplex halimus (Nedjimi and Daoud 2009), and Cornus sericea (Renault and Affifi 2009). However, study from Suaeda maritima (Wang et al 2007) showed that the addition of Ca 2+ did not have any effects on Na + accumulation and growth of plants exposed to salinity.…”

Section: Discussionmentioning

confidence: 99%

“…One of the plants responses to salinity is the reduction in K + accumulation, and thus the substitution of K + by Na + may lead to ions imbalances (Nedjimi and Daoud 2009). These two ions might compete for entry into root cells of plants.…”

Section: Discussionmentioning

confidence: 99%

“…It is reported that Ca 2+ can alleviate the negative effects of salinity on root elongation (Ashraf and Naqvi 1991) and shoot growth of plants (Al-Khateeb 2006, Nedjimi andDaoud 2009). Besides, the addition of Ca 2+ can not only protect cell membranes from adverse effect of Na + , but also minimize the leakage of cytosolic potassium (Maathuis and Amtmann 1999).…”

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confidence: 99%

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Calcium regulates K<sup>+</sup>/Na<sup>+</sup> homeostasis in rice (Oryza sativa L.) under saline conditions

Wu¹,

Wang²

2012

Plant Soil Environ.

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To investigate the effects of Ca 2+ on cation accumulation and K + /Na + selectivity, in this study, two-week-old rice (Oryza sativa L.) plants were exposed to 25 or 125 mmol/L NaCl with or without 10 mmol/L CaCl 2 . At low salinity (25 mmol/L NaCl), Ca 2+ significantly decreased Na + accumulation in roots, increased K + accumulation in shoots, and maintained higher K + /Na + ratios in both roots and shoots of rice plants. At high salinity (125 mmol/L NaCl), however, Ca 2+ did not have any effects on Na + , K + accumulation and K + /Na + ratios in plants. Further analysis showed that, at low salinity, the addition of Ca 2+ significantly enhanced the selective absorption and transport capacity for K + over Na + in rice. Although Na + efflux and Na + influx were remarkably reduced by Ca 2+ under both low and high salt stresses, their ratio was lowered only under low salt stress. In summary, these results suggest that Ca 2+ could regulate K + /Na + homeostasis in rice at low salinity by enhancing the selectivity for K + over Na + , reducing the Na + influx and efflux, and lowering the futile cycling of Na + .

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“…It is reported that Ca 2+ can alleviate the negative effects of salinity on root elongation IN TOMATO (Lycopersicon esculentum L.) ... (Ashraf and Naqvi, 1991) and shoot growth of plants ( Al-khateeb, 2006;Nedjimi and Daoud, 2009). besides, the addition of Ca 2+ can not only protect cell membranes from adverse effect of Na + , but also minimize the leakage of cytosolic potassium (Maathuis and Amtmann, 1999).…”

Section: Introductionmentioning

confidence: 99%

Modulation of ion uptake in tomato (Lycopersicon esculentum L.) plants with exogenous application of calcium under salt stress condition

et al. 2016

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Modulation of ion uptake in tomato ( INTRODUCTIONSalinity is one among the several environmental stresses causing drastic changes in the growth, physiology and metabolism of plants and threatening the cultivation of plants around the globe . Much salinity resulted from NaCl cause osmotic pressure of external solution become more than osmotic pressure of plant cells which is required for regulating osmotic pressure to prevent dehydration of plant cells. Uptake and transformation of nutrient ions such as potassium (k + ) and calcium (Ca 2+ ), or surplus of sodium (Na + ) can cause problems. high Na + and Clrates can cause direct toxic effects on enzymatic and membranous systems (Nazarbeygi et al., 2011). high salinity in soil disturbs intracellular ion homeostasis, leads to cell membrane damage, disrupts the metabolic activity, and thus finally causes growth inhibition and even plant death (Rains and Epstein, 1967). These phenomena were observed in agricultural and horticultural crops, including tomato (Lycopersicon esculentum L.) (Juan et al., 2005), which is considered as moderately sensitive or moderately tolerant to salinity depending on cultivar or growth stage (Santa-Cruz et al., 2002;Fernandez-Garcia et al., 2004;Estan et al., 2005).Once sodium enters the cytoplasm, it inhibits enzyme activity. This inhibition is also dependent on how much k + is present: a high Na + /k + ratio can cause a lot of damage. Ca 2+ is an important factor in the "battle" between Na + and k + ions. An increased Ca 2+ supply has a protective effect on plants under the Na stress. Calcium sustains k + transport and k + /Na + selectivity in Na-challenged plants. This beneficial effect of Ca is mediated by an intracellular signaling pathway that regulates the expression and activity of k + and Na + transporters. Calcium may also directly suppress sodium import mediated by nonselective cation channels (Davenport and Tester, 2000;Demidchik and Tester, 2002;Tester and Davenport, 2003;Zhu, 2003;Jouyban, 2012).Calcium is a crucial regulator of growth and development in plants. It is reported that Ca 2+ can alleviate the negative effects of salinity on root elongation

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Ameliorative effect of CaCl2 on growth, membrane permeability and nutrient uptake in Atriplex halimus subsp. schweinfurthii grown at high (NaCl) salinity

Cited by 50 publications

References 32 publications

The examination of Na-Ca effect on some qualitative and quantitative characters in durum wheat plants

The examination of Na-Ca effect on some qualitative and quantitative characters in durum wheat plants

Calcium regulates K<sup>+</sup>/Na<sup>+</sup> homeostasis in rice (Oryza sativa L.) under saline conditions

Modulation of ion uptake in tomato (Lycopersicon esculentum L.) plants with exogenous application of calcium under salt stress condition

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