Abstract:Accumulation of salts in irrigated soils is one of the primary factors limiting yield in South Asia. We investigated whether exogenous nitric oxide (NO) supplementation as sodium nitroprusside has any ameliorating effect against NaCl induced oxidative damage in chickpea leaves. NaCl treatment (250 mM) alone and in combination with two concentrations of SNP (0.2 and 1 mM) were given to 50 days old chickpea plants for 2, 4 and 6 days. Salt stress adversely affected the relative membrane injury, lipid peroxidatio… Show more
“…Salt stress disturbs intracellular ion homeostasis of plants, which leads to membrane dysfunction, attenuation of metabolic activity, and causes growth inhibition and ultimately leads to cell death [31]. In the present study, the deleterious effects of NaCl and Na 2 CO 3 salts on total dry matter gain in sunflower plant were clearly demonstrated and this effect is in agreement with previous investigation on sunflower [2].…”
Soil salinity and sodicity (alkalinity) are serious land degradation issues worldwide that are predicted to increase in the future. The objective of the present study is to distinguish the effects of NaCl and Na 2 CO 3 salinity in two concentrations on the growth, lipoxygenase (LOX) activity, membrane integrity, total lipids, yield parameters and fatty acids (FAs) composition of seeds of sunflower cultivar Sakha 53. Plant growth, LOX activity and malondialdehyde (MDA) content were reduced by salts stresses. On the contrary, salinity and alkalinity stress induced stimulatory effects on membrane permeability, leakage of UV-metabolites from leaves and total lipids of sunflower shoots and roots. Crop yield (plant height, head diameter, seed index and number of seeds for each head) that is known as a hallmark of plant stress was decreased by increasing concentrations of NaCl and Na 2 CO 3 in the growth media. Fatty acid methyl esters (FAME) composition of salt-stressed sunflower seeds varied with different levels of NaCl and Na 2 CO 3 .
“…Salt stress disturbs intracellular ion homeostasis of plants, which leads to membrane dysfunction, attenuation of metabolic activity, and causes growth inhibition and ultimately leads to cell death [31]. In the present study, the deleterious effects of NaCl and Na 2 CO 3 salts on total dry matter gain in sunflower plant were clearly demonstrated and this effect is in agreement with previous investigation on sunflower [2].…”
Soil salinity and sodicity (alkalinity) are serious land degradation issues worldwide that are predicted to increase in the future. The objective of the present study is to distinguish the effects of NaCl and Na 2 CO 3 salinity in two concentrations on the growth, lipoxygenase (LOX) activity, membrane integrity, total lipids, yield parameters and fatty acids (FAs) composition of seeds of sunflower cultivar Sakha 53. Plant growth, LOX activity and malondialdehyde (MDA) content were reduced by salts stresses. On the contrary, salinity and alkalinity stress induced stimulatory effects on membrane permeability, leakage of UV-metabolites from leaves and total lipids of sunflower shoots and roots. Crop yield (plant height, head diameter, seed index and number of seeds for each head) that is known as a hallmark of plant stress was decreased by increasing concentrations of NaCl and Na 2 CO 3 in the growth media. Fatty acid methyl esters (FAME) composition of salt-stressed sunflower seeds varied with different levels of NaCl and Na 2 CO 3 .
“…The NO donor SNP can also control the level of non-enzymatic antioxidants, such as those of ascorbate or glutathione. SNP treatments increased the reduced form of both metabolites and elevated the ratios of GSH/GSSG and ASC/DHA (Sheokand et al 2010;Hasanuzzaman et al 2011;Wu et al 2011;Lin et al 2012a). In other species such as Gossypium hirsutum, the NO donor decreased APX-and GR activity under salt stress, but CAT activity was not different from fhp.…”
Section: No and Salt Tolerancementioning
confidence: 99%
“…SNP increased germination, and root-and shoot growth under salinity stress as compared to the NaCl-treated controls in various plant species. Osmotic stress tolerance induced by the application of an NO donor is associated with an enhanced RWC in several species under high salinity (Sheokand et al 2010;Zeng et al 2011;Khan et al 2012).…”
Section: No and Salt Tolerancementioning
confidence: 99%
“…SNP decreased the salt stress-induced harmful lipid peroxidation, malondialdehyde (MDA) content or the level of thiobarbituric acid reactive substances (TBARS) in Atriplex centralasiatica (Xu et al 2011a), Brassica juncea (Zeng et al 2011;Khan et al 2012), Brassica rapa (Lopez-Carrion et al 2008), Cicer arietinum (Sheokand et al 2008(Sheokand et al , 2010, Cucumis sativus (Shi et al 2007;Lin et al 2012a, b), Glycine max (Simaei et al 2011), Hordeum vulgare (Li et al 2008), Kosteletzkya virginica (Guo et al 2009), Solarium lycopersicum (Wu et al 2011), and Triticum aestivum (Ruan et al 2002;Zheng et al 2009;Hasanuzzaman et al 2011;Xu et al 2011b).…”
Section: No and Salt Tolerancementioning
confidence: 99%
“…SNP promoted SOD-, POD-, and APX activities in Brassica juncea (Zeng et al 2011;Khan et al 2012), Populus euphratica (Sun et al 2010), and Cicer arietinum. plants (Sheokand et al 2010). In contrast, higher activities of POX, APX, and GR were observed in the NO-deficient Atnoal plants, and these mutants also showed lower activities of SOD and CAT than wild-type plants under NaCl stress (Zhang et al 2010).…”
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