Effect of melatonin or cobalt on growth, yield and physiological responses of cucumber (Cucumis sativus L.) plants under salt stress

Brengi, Sary H.; Khedr, Abd Allah E.M.; Abouelsaad, Ibrahim A.

doi:10.1016/j.jssas.2021.06.012

Cited by 26 publications

(18 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a result, cobalt-treated plants exhibit better growth parameters, including increased plant height, leaf number, and root development, even when exposed to high salinity levels. These findings are consistent with the results reported by Gad and El-Metwally, (2015); Brengi et al (2022).…”

Section: Discussionsupporting

confidence: 94%

See 1 more Smart Citation

Potential Effect of Cobalt and Selenium on Croton Plants Grown under Saline Conditions

Abd–Elhady,

Badour,

El-Sherpiny

2023

Journal of Plant Production

View full text Add to dashboard Cite

The search for a viable alternative to freshwater such as the use of wastewater to irrigate ornamental plants has become particularly important due to Egypt's water scarcity problems. Researchers in this field should increase their efforts to introduce innovative approaches that allow for the efficient use of wastewater while maintaining the integrity of the agricultural system. Therefore, this research was conducted to evaluate the effect of irrigation with water of different salinity levels [EC=475, 1000 and 2000 ppm] on Croton plant. In addition, the effects of spraying cobalt (Co) and selenium (Se) at different rates (0.0, 2.5, 5.0 mgL -1 ) were studied. The study evaluated various parameters of the Croton plant, including the plant height, leaf area, nitrogen, phosphorus, potassium, chlorophyll a & b, anthocyanin and antioxidants. It is noteworthy that when Croton plants were irrigated with fresh water (EC=475ppm), they showed the highest values for all the parameters studied except for antioxidants, which showed the opposite trend. Also, as the salinity of the irrigation water increased to 1000 ppm and then to 2000 ppm, the values of all the parameters gradually decreased except for antioxidants which gradually increased with increasing salinity. On the other hand, both cobalt and selenium applications resulted in improvement of the Croton plant performance, especially when the plants were irrigated with saline water (EC=1000 and 2000 ppm). In terms of effectiveness, the order from most effective to least effective treatments was as follows;Se (5.0 mgL -1 )> Co (5.0 mgL -1 )> Se (2.5 mgL -1 )> Co (2.5 mgL -1 )> control group.

show abstract

Section: Discussionsupporting

confidence: 94%

“…The effectiveness of Cobalt in enhancing plant tolerance to salinity stress is attributed to a number of mechanisms. It plays a role in maintaining ionic balance in plant cells (Baddour et al 2021;Brengi et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Potential Effect of Cobalt and Selenium on Croton Plants Grown under Saline Conditions

Abd–Elhady,

Badour,

El-Sherpiny

2023

Journal of Plant Production

View full text Add to dashboard Cite

show abstract

“…content by MT has been shown in earlier research (Brengi et al, 2022;Chen et al, 2020;Li et al, 2017). However, we report for the first time that the combination of P. fluorescens and MT maximally reduced Na + and Cl À content and thus oxidative stress in salt-stressed plants and thereby protected photosynthesis and growth.…”

Section: Melatonin and Pgpr Have A Combined Effect On Mustard Morphol...supporting

confidence: 77%

“…El‐Esawi et al (2018) also reported a reduction in Na + and Cl − accumulation under salinity stress in maize plants when supplemented with the PGPR strain Serratia liquefaciens KM4. A reduction in ion content by MT has been shown in earlier research (Brengi et al, 2022; Chen et al, 2020; Li et al, 2017). However, we report for the first time that the combination of P. fluorescens and MT maximally reduced Na + and Cl − content and thus oxidative stress in salt‐stressed plants and thereby protected photosynthesis and growth.…”

Section: Discussionsupporting

confidence: 57%

Synergistic action of Pseudomonas fluorescens with melatonin attenuates salt toxicity in mustard by regulating antioxidant system and flavonoid profile

Khan,

Umar,

Iqbal

2023

Physiologia Plantarum

View full text Add to dashboard Cite

Salt stress is an alarming abiotic stress that reduces mustard growth and yield. To attenuate salt toxicity effects, plant growth‐promoting rhizobacteria (PGPR) offers a sustainable approach. Among the various PGPR, Pseudomonas fluorescens (P. fluorescens NAIMCC‐B‐00340) was chosen for its salt tolerance (at 100 mM NaCl) and for exhibiting various growth‐promoting activities. Notably, P. fluorescens can produce auxin, which plays a role in melatonin (MT) synthesis. Melatonin is a pleiotropic molecule that acts as an antioxidant to scavenge reactive oxygen species (ROS), resulting in stress reduction. Owing to the individual role of PGPR and MT in salt tolerance, and their casual nexus, their domino effect was investigated in Indian mustard under salt stress. The synergistic action of P. fluorescens and MT under salt stress conditions was found to enhance the activity of antioxidative enzymes and proline content as well as promote the production of secondary metabolites. This led to reduced oxidative stress following effective ROS scavenging, maintained photosynthesis, and improved growth. In mustard plants treated with MT and P. fluorescens under salt stress, eight flavonoids showed significant increase. Kaempferol and cyanidin showed the highest concentrations and are reported to act as antioxidants with protective functions under stress. Thus, we can anticipate that strategies involved in their enhancement could provide a better adaptive solution to salt toxicity in mustard plants.In conclusion, the combination of P. fluorescens and MT affected antioxidant metabolism and flavonoid profile that could be used to mitigate salt‐induced stress and bolster plant resilience.

show abstract

“…Therefore, an improved root system is a basic need for increased tolerance in fruit trees. The root system also has the capability to inhibit the uptake and translocation of toxic ions to other tree parts [ 69 ]. Identification of tolerant/sensitive germplasm is clearly based on the root architecture of fruit trees and the ability of the root system to inhibit toxic ions from the soil [ 70 ].…”

Section: Response and Adaptation Mechanism Under Salinity Stressmentioning

confidence: 99%

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Ahmad

Manzoor

Muhammad

et al. 2023

Life

View full text Add to dashboard Cite

Fruit orchards are frequently irrigated with brackish water. Irrigation with poor quality water is also a major cause of salt accumulation in soil. An excess of salts results in stunted growth, poor yield, inferior quality and low nutritional properties. Melatonin is a low molecular weight protein that shows multifunctional, regulatory and pleiotropic behavior in the plant kingdom. Recently, its discovery brought a great revolution in sustainable fruit production under salinity-induced environments. Melatonin contributed to enhanced tolerance in Zizyphus fruit species by improving the plant defense system’s potential to cope with the adverse effects of salinity. The supplemental application of melatonin has improved the generation of antioxidant assays and osmolytes involved in the scavenging of toxic ROS. The tolerance level of the germplasm is chiefly based on the activation of the defense system against the adverse effects of salinity. The current study explored the contribution of melatonin against salinity stress and provides information regarding which biochemical mechanism can be effective and utilized for the development of salt-tolerant germplasm in Zizyphus.

show abstract

Effect of melatonin or cobalt on growth, yield and physiological responses of cucumber (Cucumis sativus L.) plants under salt stress

Cited by 26 publications

References 27 publications

Potential Effect of Cobalt and Selenium on Croton Plants Grown under Saline Conditions

Potential Effect of Cobalt and Selenium on Croton Plants Grown under Saline Conditions

Synergistic action of Pseudomonas fluorescens with melatonin attenuates salt toxicity in mustard by regulating antioxidant system and flavonoid profile

Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory

Contact Info

Product

Resources

About