Effects of nitric oxide on the germination of cucumber seeds and antioxidant enzymes under salinity stress

Fan, Huaifu; Du, Changxia; Ding, Ling; Xü, Yanli

doi:10.1007/s11738-013-1303-0

Cited by 54 publications

(37 citation statements)

References 58 publications

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“…These results corroborate those observed by Fan et al (2013), who examined the effect of salt stress on cucumber seeds and attributed a key role to SOD as an antioxidant defense mechanism. On the other hand, Sevengor et al (2011), by examining the effect of salt stress on pumpkin seedlings (using a similar condition of imbibition time of 72 h), observed reduced activities of SOD.…”

Section: Resultssupporting

confidence: 91%

“…Increased CAT activity in cucurbit seeds and seedlings under salt stress were recently reported for pumpkin (Sevengor et al 2011), melon (Keling et al 2013, Dantas et al 2015 and cucumber (Fan et al 2013), showing the importance of this enzyme in the defense mechanism against oxidative stress under these conditions.…”

Section: Resultsmentioning

confidence: 64%

“…However, like other antioxidant enzymes, POX may have different activity patterns. Fan et al (2013) observed that the POX activity was not affected in salt-stressed cucumber seeds. On the other hand, also evaluating salt stress in squash (Cucurbita pepo) seeds, Harter et al (2014) observed significant increases in this enzyme activity.…”

Section: Resultsmentioning

confidence: 96%

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Germination and antioxidant action in melon seeds exposed to salt stress

Pinheiro

Silva

et al. 2016

Pesqui. Agropecu. Trop.

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Salinity influences all germination stages and may adversely affect the seedlings establishment in the field. This study aimed at assessing the effects of salt stress on the physiological potential of melon (Cucumis melo L.) seeds. Germination and activity of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX) enzymes were assessed at the osmotic potentials of 0.0 MPa, -0.1 MPa, -0.2 MPa, -0.3 MPa, -0.4 MPa and -0.5 MPa. The enzymatic activity was assessed after 24 h, 48 h and 72 h of imbibition. Seed germination was zero at -0.5 MPa and 91 % and 85 % at -0.1 MPa and -0.2 MPa, respectively. In general, the activity of SOD, CAT and POX enzymes increased with the salt-induced stress, in the different times of imbibition, and these increases were more evident at -0.4 MPa and -0.5 MPa. The salt stress induced by NaCl diminishes the germination rate of melon seeds, particularly from the osmotic potential of -0.2 MPa. There is a significant increase in the activity of SOD, CAT and POX enzymes, mainly after 48 h of exposure.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 64%

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Germination and antioxidant action in melon seeds exposed to salt stress

Pinheiro

Silva

et al. 2016

Pesqui. Agropecu. Trop.

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“…In the present study, application of JA and NO increased the activities of SOD, CAT, APX, and GR, and the synthesis of AsA, GSH, proline, and flavonoids, which helped the plants to counteract ROS-induced damage more precisely compared with that in the untreated counterparts. Improved antioxidant metabolism due to NO application has also been reported by Fan et al (2013) in Cucumis sativus, Fu et al (2016) in Elymus nutans, and Ahmad, Abdel Latef, et al (2016) in C. arietinum. Hasanuzzaman et al (2011) also demonstrated the induction of antioxidant defense system upon NO application in salt-stressed wheat.…”

Section: Discussionmentioning

confidence: 77%

Mitigation of sodium chloride toxicity inSolanum lycopersicumL. by supplementation of jasmonic acid and nitric oxide

Ahmad

Ahanger

Alyemeni

et al. 2018

Journal of Plant Interactions

158

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We investigated the effects of exogenous application of jasmonic acid (JA) and nitric oxide (NO) on growth, antioxidant metabolism, physio-biochemical attributes and metabolite accumulation, in tomato (Solanum lycopersicum L.) plants exposed to salt stress. Treating the plants with NaCl (200 mM) resulted in considerable growth inhibition in terms of biomass, relative water content, and chlorophyll content, all of which were significantly improved upon application of JA and NO under both normal and NaCl-stress treatments. Salt treatment particularly 200 mM NaCl caused an apparent increase in electrolyte leakage, lipid peroxidation, and hydrogen peroxide production, which were reduced by exogenous application of JA and NO. Salt treatment triggered the induction of antioxidant system by enhancing the activities of antioxidant enzymes like superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR). Application of JA and NO separately as well as in combination caused a significant improvement in activities of SOD, CAT, APX, and GR activities. JA and NO either applied individually or in combination boosted the flavonoid, proline and glycine betaine synthesis under NaCl treatments. In conclusion, the exogenous application of JA and NO protected tomato plants from NaCl-induced damage by up-regulating the antioxidant metabolism, osmolyte synthesis, and metabolite accumulation. ARTICLE HISTORY

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“…The induction of various antioxidant enzymes (catalase, APX, SOD) by NO was also observed under salt stress in chickpea (Sheokand et al, 2008), wheat (Zheng et al, 2009) and rice (Uchida et al, 2002). The possible effect of NO on amino acids during salt stress was only investigated in the case of Pro in cucumber where the NO-induced increase in Pro was assumed to be responsible for an improved salt tolerance (Fan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Nitric oxide affects salt-induced changes in free amino acid levels in maize

Boldizsár¹,

Simon‐Sarkadi²,

Szirtes³

et al. 2013

Journal of Plant Physiology

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Abstract:It was assumed that salt-induced redox changes affect amino acid metabolism in maize (Zea mays L.), and this influence may be modified by NO. The applied NaCl treatment reduced the fresh weight of shoots and roots. This decrease was smaller after the combined application of NaCl and an NO-donorETA/NO) in the shoots, while it was greater after simultaneous treatment with NaCl and nitro-l-arginine (l-NNA, inhibitor of NO synthesis) in the roots. The quantum yield efficiency of photosystem II was not influenced by the treatments. NaCl had a significant effect on the redox environment in the leaves as it was shown by the increase in the amount of glutathione disulphide and in the redox potential of the glutathione/glutathione disulphide redox pair. This influence of NaCl was modified by DETA/NO and l-NNA. Pharmacological modification of NO levels affected salt-induced changes in both the total free amino acid content and in the free amino acid composition. NaCl alone increased the concentration of almost all amino acids which effect was strengthened by DETA/NO in the case of Pro. l-NNA treatment resulted in a significant increase in the Ala, Val, Gly and Tyr contents. The Ile, Lys and Val concentrations rose considerably after the combined application of NaCl and DETA/NO compared to NaCl treatment alone in the recovery phase. NaCl also increased the expression of several genes related to the amino acid and antioxidant metabolism, and this effect was modified by DETA/NO. In conclusion, modification of NO levels affected salt-induced, glutathione-dependent redox changes and simultaneously the free amino acid composition and the level of several free amino acids. The observed much higher Pro content in plants treated with both NaCl and DETA/NO during recovery may contribute to the protective effect of NO against salt stress.

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Effects of nitric oxide on the germination of cucumber seeds and antioxidant enzymes under salinity stress

Cited by 54 publications

References 58 publications

Germination and antioxidant action in melon seeds exposed to salt stress

Germination and antioxidant action in melon seeds exposed to salt stress

Mitigation of sodium chloride toxicity inSolanum lycopersicumL. by supplementation of jasmonic acid and nitric oxide

Nitric oxide affects salt-induced changes in free amino acid levels in maize

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