Enhancing salinity stress tolerance and phenylalanine ammonia lyase gene activity using osmolytes in Moringa seedling production

Osman, Amira R.; El-Naggar, Hany M.

doi:10.1016/j.aoas.2022.06.002

Cited by 6 publications

(5 citation statements)

References 36 publications

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“…The crucial role in the reduction of reactive oxygen species generation and resistance to oxidative damage by activation of a defensive antioxidant system in stressed plants is largely confirmed in other studies [ 44 , 50 ]. The stimulation of antioxidant enzymes (SOD and CAT) to react more strongly to freshwater deficiency stress was triggered by the first water deficit cycle in control stressed plants.…”

Section: Resultsmentioning

confidence: 59%

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Multivariate investigation of Moringa oleifera morpho-physiological and biochemical traits under various water regimes

Hajaji,

Heikal,

Hamouda

et al. 2024

BMC Plant Biol

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Background The climatic changes crossing the world menace the green life through limitation of water availability. The goal of this study was to determine whether Moringa oleifera Lam. trees cultivated under Tunisian arid climate, retain their tolerance ability to tolerate accentuated environmental stress factors such as drought and salinity. For this reason, the seeds of M. oleifera tree planted in Bouhedma Park (Tunisian arid area), were collected, germinated, and grown in the research area at the National Institute of Research in Rural Engineering, Waters and Forests (INRGREF) of Tunis (Tunisia). The three years aged trees were exposed to four water-holding capacities (25, 50, 75, and 100%) for 60 days to realise this work. Results Growth change was traduced by the reduction of several biometric parameters and fluorescence (Fv/Fm) under severe water restriction (25 and 50%). Whereas roots presented miraculous development in length face to the decrease of water availability (25 and 50%) in their rhizospheres. The sensitivity to drought-induced membrane damage (Malondialdehyde (MDA) content) and reactive oxygen species (ROS) liberation (hydrogen peroxide (H2O2) content) was highly correlated with ROS antiradical scavenging (ferric reducing antioxidant power (FRAP) and (2, 2’-diphenyl-1-picrylhydrazyle (DPPH)), phenolic components and osmolytes accumulation. The drought stress tolerance of M. oleifera trees was associated with a dramatic stimulation of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), ascorbate peroxidase (APX), and glutathione peroxidase (GPX) activities. Conclusion Based on the several strategies adopted, integrated M. oleifera can grow under drought stress as accentuated adverse environmental condition imposed by climate change.

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Section: Resultsmentioning

confidence: 59%

“…Osmotic stress and the other different abiotic stress factors (salinity, metallic) induce the synthesis and accumulation of osmoregulator molecules such as proline amino acid and soluble sugar [ 50 ]. It is largely demonstrated that proline participates in reinforcement of the antioxidant system scavenging induced ROS accumulation [ 19 ].…”

Section: Resultsmentioning

confidence: 99%

Multivariate investigation of Moringa oleifera morpho-physiological and biochemical traits under various water regimes

Hajaji,

Heikal,

Hamouda

et al. 2024

BMC Plant Biol

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“…Working on Paulownia seedlings in Cairo (Egypt), Abdel Moniem et al [ 155 ] concluded that the “ Remediation of soil with defatted seeds of Moringa oleifera had promotion effects on reducing the uptake of metal and decreasing its availability ” (p. 6847). Moringa showed tolerance to abiotic stresses such as salinity in different studies [ 182 , 183 ]. Interestingly, moringa was used to increase the tolerance to salinity of different crops such as cotton [ 169 ], wheat [ 173 ], and Sudan grass [ 160 , 174 ].…”

Section: Resultsmentioning

confidence: 99%

Research on Moringa (Moringa oleifera Lam.) in Africa

El Bilali,

Dan Guimbo,

Nanema

et al. 2024

Plants

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While Moringa oleifera Lam. is gaining importance in Africa, especially sub-Saharan Africa, it is unclear whether research is following the quick pace of its development on the continent. Therefore, this article analyzes the landscape of research dealing with moringa in Africa. This systematic review draws upon 299 eligible articles identified through a search carried out on the Web of Science in April 2023. Research on M. oleifera is rather recent in Africa but interest is increasing among scholars. While the research field is multidisciplinary and cross-sectoral, the literature seems to focus on biological and environmental sciences. Moreover, research is performed mainly in South Africa, Nigeria, Egypt, and Ghana. The analysis suggests a significant potential contribution of moringa to food security and nutrition, climate change mitigation/adaptation, farming systems resilience, and livelihoods. Its versatility and diverse applications and uses make moringa particularly interesting for developing countries, such as African ones. However, this review also underscores some factors hindering its development. Therefore, there is a need to strengthen research on moringa to unlock its potential in Africa. Investments in research, innovation, and development can help address the many challenges that Africa faces and contribute to the transition towards sustainable and resilient food systems.

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“…The decreases in chlorophyll concentrations are related to leaf yellowing, which is a sign of termination of vase life [ 27 ]. As a result, the photosynthetic pigments of the leaves were evaluated under various treatments at the maximum flower diameter stage [ 31 ]. Fresh leaf samples (0.1 g) were washed and incubated overnight at a cool temperature (4-5 °C) in 5 ml of N,N-dimethyl formamide solution.…”

Section: Methodsmentioning

confidence: 99%

A novel efficient multi-walled carbon nanotubes/gibberellic acid composite for enhancement vase life and quality of Rosa hybrida cv. ‘Moonstone’

El-Naggar,

Ali,

Osman

2024

BMC Plant Biol

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The postharvest life of cut flowers is limited, which is a major challenge and varies greatly depending on plant varieties, cut flower stage, flower length of the harvested shoots, and storage conditions including postharvest treatments. As a result, improving the vase life and quality of cut flowers in regulating postharvest characteristics and overcoming these challenges is critical to the horticulture business. Novel engineered nanocomposites were created and tested for possible impacts on flower bud opening, postharvest life extension, longevity regulation, and preservation and enhancement of the strength and appearance of cut flowers. The experiment was conducted as a factorial experiment using a completely randomized design (CRD) with two factors. The first factor was two holding solutions (without or with sucrose at 20 gL−1). The second factor was 12 pulsing treatments for 24 h; distilled water as a control, 75 ppm GA3, multi-walled carbon nanotubes MWCNTs at 10, 20, 30, 40, and 50 ppm, and MWCNTs (10, 20, 30, 40, and 50 ppm)/GA3 (75 ppm) composites; each treatment had 3 replicates, for a total of 72 experimental units. In the present study, gibberellic acid (GA3) was synthesized in functionalized (MWCNT/GA3 composites) as a novel antisenescence agent, and their effect on the vase life quality of cut rose flowers Rosa hybrida cv. ‘Moonstone’ was compared by assaying several parameters critical for vase life. The adsorption of GA3 on MWCNTs was proven by performing FTIR spectroscopy which ensures that the formation of the MWCNTs/GA3 composite preserves the nanostructure and was examined by high-resolution transmission electron microscopy (HR-TEM). The results revealed that sucrose in the holding solution showed a significant increase in fresh weight, flower diameter, and vase life by 10.5, 10.6, and 3.3% respectively. Applying sucrose with MWCNTs 20 ppm/GA3 75 ppm composites or MWCNTs 20 ppm alone, was critical for the significant increase in flower opening by 39.7 and 28.7%, and longevity by 34.4 and 23.2%, respectively, and significantly increased chlorophyll a, b, total chlorophyll, anthocyanin, total phenolic content, and 2,2-Diphenyl-1-picrylhydrazyl scavenging activity as compared to the control.

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Enhancing salinity stress tolerance and phenylalanine ammonia lyase gene activity using osmolytes in Moringa seedling production

Cited by 6 publications

References 36 publications

Multivariate investigation of Moringa oleifera morpho-physiological and biochemical traits under various water regimes

Multivariate investigation of Moringa oleifera morpho-physiological and biochemical traits under various water regimes

Research on Moringa (Moringa oleifera Lam.) in Africa

A novel efficient multi-walled carbon nanotubes/gibberellic acid composite for enhancement vase life and quality of Rosa hybrida cv. ‘Moonstone’

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