Mitigating drought stress in sesame by foliar application of salicylic acid, beeswax waste and licorice extract

Pourghasemian, Nasibeh; Moradi, Rooholla; Naghizadeh, Mehdi; Landberg, Tommy

doi:10.1016/j.agwat.2019.105997

Cited by 41 publications

(22 citation statements)

References 39 publications

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“…A significant decrease was observed in MDA and EL% in both the species under MS + SA and HS + SA which supports this hypothesis. The involvement of SA in improving antioxidant enzyme activity and reducing the ROS activities has also been reported previously in Sesame plants under water stress [ 75 ]. Furthermore, Dianat et al [ 67 ] observed that the foliar application of SA boosted the antioxidant defense mechanism in Lippia citriodora against oxidative damage induced by water stress.…”

Section: Discussionsupporting

confidence: 58%

Foliar Application of Salicylic Acid Improves Water Stress Tolerance in Conocarpus erectus L. and Populus deltoides L. Saplings: Evidence from Morphological, Physiological, and Biochemical Changes

Zafar

Rasheed

Atif

et al. 2021

Plants

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Reforestation efforts are being challenged as water stress is hampering the sapling growth and survival in arid to semiarid regions. A controlled experiment was conducted to evaluate the effect of foliar application of salicylic acid (SA) on water stress tolerance of Conocarpus erectus and Populus deltoides. Saplings were watered at 90%, 60%, and 30% of field capacity (FC), and half of the saplings under 60% and 30% FC were sprayed with 1.0 mM SA. Results indicated that dry weight production decreased significantly in Populus deltoides under both water deficit conditions, and leaf gas exchange parameters decreased significantly in both the species under both soil water deficit conditions. Foliar application of SA resulted in a significant increase in leaf gas exchange parameters, and compatible solutes, thereby increasing the dry weight production in both of the species under soil water deficit. Oxidative stress (hydrogen peroxide and superoxide anions) increased under soil water deficit and decreased after the foliar application of SA and was parallel to the increased antioxidant enzymes activity (superoxide dismutase, catalase, peroxidase, and ascorbate peroxidase). Therefore, it can be concluded that foliar application of 1.0 mM SA can significantly improve the water stress tolerance in both species, however, positive impacts of SA application were higher in Conocarpus erectus due to improved photosynthetic capacity and increased antioxidant enzyme activity.

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Section: Discussionsupporting

confidence: 58%

Foliar Application of Salicylic Acid Improves Water Stress Tolerance in Conocarpus erectus L. and Populus deltoides L. Saplings: Evidence from Morphological, Physiological, and Biochemical Changes

Zafar

Rasheed

Atif

et al. 2021

Plants

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“…With respect to the cultivars, our findings indicated that both levels of LRE pretreatment resulted in increased contents of AsA, GSH, and phenolics in the Giza 20 compared to the Shandaweel bulbs, whereas the flavonoid levels and the total antioxidant capacity were better in Shandaweel than in Giza 20 bulbs ( Figure 5 A–E). Our results suggest that LRE-pretreated onion cultivars absorbed antioxidants such as AsA, phenolics, and flavonoids that are present in LRE ( Table 2 ) [ 13 , 38 ], and subsequently increased their endogenous levels to enable onion cultivars to counteract the ROS-induced oxidative damage. Intriguingly, these antioxidants also perform the most fundamental functions in the human body.…”

Section: Discussionmentioning

confidence: 98%

“…In line with our results, Mazrou [ 37 ] demonstrated that LRE pretreatment enhanced the levels of total soluble carbohydrates in Pimpinella anisum . Furthermore, the increased water-soluble protein contents in bulbs of LRE-pretreated onion cultivars may be associated with better nitrogen assimilation and stimulation of the amino acid metabolism ( Figure 4 D) [ 38 ]. Intriguingly, the greater protein accumulation in bulbs of LRE-pretreated onion cultivars suggests that these bulbs would supply sufficient proteins for multiple body functions in consumers.…”

Section: Discussionmentioning

confidence: 99%

Antioxidants and Bioactive Compounds in Licorice Root Extract Potentially Contribute to Improving Growth, Bulb Quality and Yield of Onion (Allium cepa)

et al. 2021

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The increasing culinary use of onion (Alium cepa) raises pressure on the current production rate, demanding sustainable approaches for increasing its productivity worldwide. Here, we aimed to investigate the beneficial effects of licorice (Glycyrrhiza glabra) root extract (LRE) in improving growth, yield, nutritional status, and antioxidant properties of two high-yielding onion cultivars, Shandaweel and Giza 20, growing under field conditions in two consecutive years. Our results revealed that pretreatments of both onion cultivars with LRE exhibited improved growth indices (plant height and number of leaves) and yield-related features (bulb length, bulb diameter, and bulb weight) in comparison with the corresponding LRE-devoid control plants. Pretreatments with LRE also improved the nutritional and antioxidant properties of bulbs of both cultivars, which was linked to improved mineral (e.g., K+ and Ca2+) acquisition, and heightened activities of enzymatic antioxidants (e.g., superoxide dismutase, catalase, ascorbate peroxidase, glutathione peroxidase, and glutathione S-transferase) and increased levels of non-enzymatic antioxidants (e.g., ascorbic acid, reduced glutathione, phenolics, and flavonoids). LRE also elevated the contents of proline, total free amino acids, total soluble carbohydrates, and water-soluble proteins in both onion bulbs. In general, both cultivars displayed positive responses to LRE pretreatments; however, the Shandaweel cultivar performed better than the Giza 20 cultivar in terms of yield and, to some extent, bulb quality. Collectively, our findings suggest that the application of LRE as biostimulant might be an effective strategy to enhance bulb quality and ultimately the productivity of onion cultivars under field conditions.

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“…Regulation of Pro, protein and carotenoid contents, and activity of CAT, APX, guaiacol peroxidase, and GR activity were conferred by foliar application of beeswax waste and licorice extract which were directly involved in ROS scavenging, reduction in malondialdehyde (MDA) level and prevention of chl breakdown. In addition, improvement in the quantum efficiency of photosystem II ( Fv / Fm ), net photosynthetic rate, stomatal conductance, transpiration, and water use efficiency were responsible for a reduction in ROS production [99]. In field-grown maize, HA application with S-containing soil amendment, significantly increased SOD and CAT activities and reduces and H 2 O 2 content under water stress conditions [100].…”

Section: Droughtmentioning

confidence: 99%

Biostimulants for the Regulation of Reactive Oxygen Species Metabolism in Plants under Abiotic Stress

Hasanuzzaman

Parvin

Bardhan

et al. 2021

Cells

139

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Global food security for a growing population with finite resources is often challenged by multiple, simultaneously occurring on-farm abiotic stresses (i.e., drought, salinity, low and high temperature, waterlogging, metal toxicity, etc.) due to climatic uncertainties and variability. Breeding for multiple stress tolerance is a long-term solution, though developing multiple-stress-tolerant crop varieties is still a challenge. Generation of reactive oxygen species in plant cells is a common response under diverse multiple abiotic stresses which play dual role of signaling molecules or damaging agents depending on concentration. Thus, a delicate balance of reactive oxygen species generation under stress may improve crop health, which depends on the natural antioxidant defense system of the plants. Biostimulants represent a promising type of environment-friendly formulation based on natural products that are frequently used exogenously to enhance abiotic stress tolerance. In this review, we illustrate the potential of diverse biostimulants on the activity of the antioxidant defense system of major crop plants under stress conditions and their other roles in the management of abiotic stresses. Biostimulants have the potential to overcome oxidative stress, though their wider applicability is tightly regulated by dose, crop growth stage, variety and type of biostimulants. However, these limitations can be overcome with the understanding of biostimulants’ interaction with ROS signaling and the antioxidant defense system of the plants.

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Mitigating drought stress in sesame by foliar application of salicylic acid, beeswax waste and licorice extract

Cited by 41 publications

References 39 publications

Foliar Application of Salicylic Acid Improves Water Stress Tolerance in Conocarpus erectus L. and Populus deltoides L. Saplings: Evidence from Morphological, Physiological, and Biochemical Changes

Foliar Application of Salicylic Acid Improves Water Stress Tolerance in Conocarpus erectus L. and Populus deltoides L. Saplings: Evidence from Morphological, Physiological, and Biochemical Changes

Antioxidants and Bioactive Compounds in Licorice Root Extract Potentially Contribute to Improving Growth, Bulb Quality and Yield of Onion (Allium cepa)

Biostimulants for the Regulation of Reactive Oxygen Species Metabolism in Plants under Abiotic Stress

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