NaCl pre-treatments mediate salt adaptation in melon plants through antioxidative system

Sivritepe, Nuray; Sivritepe, H. Özkan; Tuerkan, I; Bor, Melike; Oezdemir, F

doi:10.15258/sst.2008.36.2.09

Cited by 14 publications

(10 citation statements)

References 39 publications

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“…Data in the figure indicate the mean of five replicates (±SD). Different letters on error bars indicate significant difference among various salt treatments at P \ 0.05 mitigate oxidative damage to plants upon salt stress (Saha et al 2010;Sivritepe et al 2008). However, antioxidant protection in pretreated plants was not stronger than that in non-pretreated plants under salt stress in this study (Fig.…”

Section: Discussionmentioning

confidence: 59%

Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Cao³

et al. 2015

Acta Physiol Plant

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This study attempted to explore how salt priming affected salt tolerance in sweet sorghum with emphasis on root Na ? uptake. After 10 days of pretreatment with 150 mM NaCl, plants were stressed with 300 mM NaCl. After salt stress for 7 days, dry matter of root and shoot decreased by 58.7 and 69.7 % in non-pretreated plants and by 37.9 and 41.3 % in pretreated plants. Consistently, pretreated plants maintained higher photosynthetic rate during salt stress, suggesting the enhanced tolerance by salt priming. Salt priming enhanced osmotic resistance, as proline and relative water contents in the leaf were higher in pretreated plants under salt stress. Salt priming alleviated salt-induced oxidative damage not by improving antioxidant protection due to lower increase in leaf malondialdehyde content and no extra induction on ascorbate peroxidase, catalase, superoxide dismutase, ascorbic acid and reduced glutathione in pretreated plants. After 7 days of salt stress, root Na ? efflux increased by 8.5-and 3.9-folds in pretreated and non-pretreated plants, suggesting that salt priming reduced root Na ? uptake, and then root and leaf Na ? accumulation were mitigated in pretreated plants. However, root Na ? extrusion became indifferent between pretreated and non-pretreated plants under salt stress after inhibiting plasma membrane (PM) Na ?

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Section: Discussionmentioning

confidence: 59%

Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Cao³

et al. 2015

Acta Physiol Plant

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“…SOD acts in the first line of defense against reactive oxygen species, by dismutating superoxide radicals (O 2 -) to hydrogen peroxide (H 2 O 2 ) (Harter et al 2014). Thus, the reduced activity of this enzyme may be associated with H 2 O 2 accumulation, which, at the same time, activates peroxidases (Sivritepe et al 2008). …”

Section: Resultsmentioning

confidence: 99%

“…The differences observed in the antioxidant enzymes activities, considering the different osmotic potentials and imbibition times, indicate various factors that interfere with the activity of these enzymes or favor it, such as the osmotic and/or toxic effects caused by excessive salt concentrations and the balance between the levels of reactive oxygen species and the antioxidant systems, in the prevention of cell oxidative stress (Sivritepe et al 2008, Kavas et al 2013.…”

Section: Resultsmentioning

confidence: 99%

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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“…However, other results indicate that the application of such biostimulants, despite its numerous advantages, like faster germination and earlier growth [46,47], may inhibit the growth and development of many plants. This calls for greater care in the use of seaweeds extracts [48]. Therefore, the inhibition of plant growth after application of biostimulants is a potential problem in plant production.…”

Section: Introductionmentioning

confidence: 99%

Morphological and Biochemical Responses of Glycine max (L.) Merr. to the Use of Seaweed Extract

et al. 2019

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Currently, modern agriculture aims to improve the quantity and quality of crop yield, while minimizing the negative impact of treatments on the natural environment. One of the methods to increase plant yield and quality, especially after the occurrence of both abiotic or biotic stress factors, is the application of biostimulants. The aim of the study was to determine the effect of Ecklonia maxima extract on plant growth, and the yield, nutritional, and nutraceutical properties of soybean seeds. A field experiment was conducted in three growing seasons (2014–2016). Soybean seeds of Atlanta cultivar were sown in the third 10-day period of April. Ecklonia maxima extract was applied in the form of single or double, spraying in the concentrations of 0.7% and 1.0%. Determinations were conducted for: biometric traits, seed yield, seed number, thousand seeds weight, contents of lipids, and proteins in seeds. Further analyses included the contents of total polyphenols, flavonoids, anthocyanins, and reducing power. The number of seaweed extract applications and its concentration modified biometric traits, yield, and quality of crop, while also also altering the nutraceutical and antioxidative potential of soybean. The application of this preparation improved the growth and yield of soybean without any negative effect on the nutritive value of seeds.

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NaCl pre-treatments mediate salt adaptation in melon plants through antioxidative system

Cited by 14 publications

References 39 publications

Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Germination and antioxidant action in melon seeds exposed to salt stress

Morphological and Biochemical Responses of Glycine max (L.) Merr. to the Use of Seaweed Extract

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