Exogenous silicon (Si) increases antioxidant enzyme activity and reduces lipid peroxidation in roots of salt-stressed barley (Hordeum vulgareL.)

Liang, Yongchao; Chen, Q.i.n.; Liu, Qian; Zhang, Wenhua; Ding, Ruixing

doi:10.1078/0176-1617-01065

Cited by 639 publications

(461 citation statements)

References 30 publications

Supporting

Mentioning

378

Contrasting

Unclassified

Order By: Relevance

“…1A). Salt stress induces lipid peroxidation through reactive oxygen species production (Liang et al, 2003;Verma and Mishra, 2005), thus making the membrane leaky as evinced by increased electrolyte leakage. Exogenously applied antioxidants, SNP (NO donor) and polyamine (putrescine) had a protective effect on salt induced membrane damage.…”

Section: Discussionmentioning

confidence: 99%

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Sheokand

Kumari

Sawhney

2008

Physiol Mol Biol Plants

View full text Add to dashboard Cite

Chickpea plants were subjected to salt stress for 48 h with 100 mM NaCl, after 50 days of growth. Other batches of plants were simultaneously treated with 0.2 mM sodium nitroprusside (NO donor) or 0.5 mM putrescine (polyamine) to examine their antioxidant effects. Sodium chloride stress adversely affected the relative water content (RWC), electrolyte leakage and lipid peroxidation in leaves. Sodium nitroprusside and putrescine could completely ameliorate the toxic effects of salt stress on electrolyte leakage and lipid peroxidation and partially on RWC. No significant decline in chlorophyll content under salt stress as well as with other treatments was observed. Sodium chloride stress activated the antioxidant defense system by increasing the activities of peroxidase (POX), catalase (CAT) superoxide dismutase (SOD) and ascorbate peroxidase (APX). However no significant effect was observed on glutathione reductase (GR) and dehydro ascorbate reductase (DHAR) activities. Both putrescine and NO had a positive effect on antioxidant enzymes under salt stress. Putrescine was more effective in scavenging superoxide radical as it increased the SOD activity under salt stress whereas nitric oxide was effective in hydrolyzing H 2 O 2 by increasing the activities of CAT, POX and APX under salt stress.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Sheokand

Kumari

Sawhney

2008

Physiol Mol Biol Plants

View full text Add to dashboard Cite

show abstract

“…Parallel to our results, low MDA content is important in terms of salt tolerance as represented in different studies. Salt tolerant barley (Liang et al, 2003), tobacco (Ruiz et al, 2005) and wheat cultivars (Sairam et al, 2002(Sairam et al, , 2005Mandhania et al, 2006) also showed low level of lipid peroxidation which is important sign of higher oxidative damage limiting capacity under salinity.…”

Section: Discussionmentioning

confidence: 99%

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Feki

Tounsi

Brini

2018

Span. j. agric. res.

View full text Add to dashboard Cite

It has been demonstrated previously that the physiological and molecular analysis of seedlings of the tolerant (Om Rabia3) and susceptible (Mahmoudi) Tunisian wheat genotypes were different at short and long-term response to salinity. In this study, we examined the antioxidant defence system in seedlings of these two cultivars at short-term response to different NaCl concentrations. The findings showed that high salinity tolerance of cv. Om Rabia3, as manifested by lower decrease in its dry biomass, was associated with lower malondialdehyde and hydrogen peroxide contents, lower accumulation of the superoxide (O 2 -) in the roots and the shoots, and also lower decrease in ascorbate content than those in cv. Mahmoudi. Moreover, the expression of some genes coding for antioxidant enzymes such as the catalase, the superoxide dismutase and the peroxidase were enhanced by NaCl stress especially in the salt-tolerant cultivar. In parallel, their activities were increased in response to the same condition of stress and especially in the cv. Om Rabia3. Taken together, these data suggested that the capacity to limit oxidative damage is important for NaCl tolerance of durum wheat.

show abstract

“…Si is also well known to be effective in alleviating abiotic stresses in higher plants (Hodson and Evans, 1995;Rogalla and Römheld, 2002;Liang et al, 2003Liang et al, , 2005. Our previous study demonstrated that addition of Si to the nutrient solution can decrease As uptake by rice seedlings (Guo et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Is the effect of silicon on rice uptake of arsenate (AsV) related to internal silicon concentrations, iron plaque and phosphate nutrition?

Guo

Zhu

Liu

et al. 2007

Environmental Pollution

View full text Add to dashboard Cite

Arsenate uptake by rice seedlings is affected by both Si (internal and external) and iron plaque on root surface. AbstractSolution culture experiments were conducted to investigate the effects of silicon (Si) on arsenate (As V ) uptake by rice. The addition of Si to the pretreatment or uptake solution significantly decreased shoot and root As concentrations (P < 0.001 and P < 0.05). The presence of Si in the pretreatment or uptake solution also significantly decreased shoot P concentrations (P < 0.001). The data demonstrated that both internal and external Si inhibited the uptake of As and P. Results of As uptake kinetics showed that the mechanism of the effect of Si on arsenate uptake is not caused by direct competition for active sites of transporters with As. The effect of Si on As uptake was not entirely mediated through the effect of Si on P uptake. Although the addition of Si to pretreatment solutions still significantly decreased shoot and root As concentrations, the extent of reduction became smaller when rice roots were coated with iron plaque.

show abstract

Exogenous silicon (Si) increases antioxidant enzyme activity and reduces lipid peroxidation in roots of salt-stressed barley (Hordeum vulgareL.)

Cited by 639 publications

References 30 publications

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Is the effect of silicon on rice uptake of arsenate (AsV) related to internal silicon concentrations, iron plaque and phosphate nutrition?

Contact Info

Product

Resources

About