Mitigation of Salinity-Induced Damages in <i>Capsicum Annum</i> L. (Sweet Pepper) Seedlings Using Priming Techniques: A Future Perspective of Climate Change in the Region

Shumaila, Shumaila; Ullah, Sami

doi:10.1080/00103624.2020.1791154

Cited by 14 publications

(8 citation statements)

References 41 publications

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“…Minor temperature changes can lead to the expression or suppression of hundreds of genes in plants that lead to a decline in crop production [ 12 ]. Stress in plants is formerly related to stress resistance, which is the ability or fitness of a plant to live under unfavorable conditions [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Mitigation effect of alpha-tocopherol and thermo-priming in Brassica napus L. under induced mercuric chloride stress

Amin,

AL-Huqail,

Ullah

et al. 2024

BMC Plant Biol

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Soil pollution with heavy metals has grown to be a big hassle, leading to the loss in farming production particularly in developing countries like Pakistan, where no proper channel is present for irrigation and extraction of these toxic heavy metals. The present study aims to ameliorate the damages caused by heavy metal ions (Hg-Mercury) on rapeseed (Brassica napus L.) via a growth regulator (α-tocopherol 150 mg/L) and thermopriming technique at 4 °C and 50 °C to maintain plant agronomical and physiological characteristics. In pot experiments, we designed total of 11 treatments viz.( T0 (control), T1 (Hg4ppm), T2 (Hg8ppm), T3 (Hg4ppm + 4 °C), T4 (Hg4ppm + 4 °C + tocopherol (150 m/L)), T5 (Hg4ppm + 50 °C), T6 (Hg4ppm + 50 °C + tocopherol (150 mg/L)), T7 (Hg8ppm + 4 °C), T8 (Hg8ppm + 4 °C + tocopherol (150 mg/L)), T9 (Hg8ppm + 50 °C), T10 (Hg8ppm + 50 °C + tocopherol (150 mg/L) the results revealed that chlorophyll content at p < 0.05 with growth regulator and antioxidant enzymes such as catalase, peroxidase, and malondialdehyde enhanced up to the maximum level at T5 = Hg4ppm + 50 °C (50 °C thermopriming under 4 ppm mercuric chloride stress), suggesting that high temperature initiate the antioxidant system to reduce photosystem damage. However, protein, proline, superoxide dismutase at p < 0.05, and carotenoid, soluble sugar, and ascorbate peroxidase were increased non-significantly (p > 0.05) 50 °C thermopriming under 8 ppm high mercuric chloride stress (T9 = Hg8ppm + 50 °C) representing the tolerance of selected specie by synthesizing osmolytes to resist oxidation mechanism. Furthermore, reduction in % MC (moisture content) is easily improved with foliar application of α-tocopherol and 50 °C thermopriming and 4 ppm heavy metal stress at T6 = Hg4ppm + 50 °C + α-tocopherol (150 mg/L), with a remarkable increase in plant vigor and germination energy. It has resulted that the inhibitory effect of only lower concentration (4 ppm) of heavy metal stress was ameliorated by exogenous application of α-tocopherol and thermopriming technique by synthesizing high levels of proline and antioxidant activities in maintaining seedling growth and development on heavy metal contaminated soil.

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Section: Introductionmentioning

confidence: 99%

Mitigation effect of alpha-tocopherol and thermo-priming in Brassica napus L. under induced mercuric chloride stress

Amin,

AL-Huqail,

Ullah

et al. 2024

BMC Plant Biol

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“…The pattern of change in SSC ( Fig 4b ) under drought stress was significant in both the varieties, indicating that under stress conditions, an osmoprotective mechanism initiated in the plant for the production of osmoprotectants, such as sugar and proline, to protect the drought exposed plants against the adverse effects of the water stress [ 4 ]. The present findings revealed an increased sugar content in the leaves of water-stressed Capsicum annuum L. plants subjected to GABA (especially 2mM) application.…”

Section: Discussionmentioning

confidence: 99%

“…These abrupt changes in climate cause various biotic and abiotic strains and such small variations in climatic condition can prompt the expressions or repressions of several genes in plants, resulting in decline in crop production [ 2 , 3 ]. Many research studies have shown that rise in temperature due to climatic variability is likely to affect many agricultural crops such as Triticum aestivum L., Capsicum annuum L., Zea mays , and Oryza sativa from 3% to 10% per degree of warming above historic level [ 4 ]. Drought stress is one of the topmost ecological factors that adversely affect the development, production and performance of the plants exclusively during the vegetative and growth stage by reducing the crop yield produced for economical purposes or existence [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Physiology of gamma-aminobutyric acid treated Capsicum annuum L. (Sweet pepper) under induced drought stress

Iqbal,

Hussain,

khan

et al. 2023

PLoS ONE

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There is now widespread agreement that global warming is the source of climate variability and is a global danger that poses a significant challenge for the 21st century. Climate crisis has exacerbated water deficit stress and restricts plant’s growth and output by limiting nutrient absorption and raising osmotic strains. Worldwide, Sweet pepper is among the most important vegetable crops due to its medicinal and nutritional benefits. Drought stress poses negative impacts on sweet pepper (Capsicum annuum L.) growth and production. Although, γ aminobutyric acid (GABA) being an endogenous signaling molecule and metabolite has high physio-molecular activity in plant’s cells and could induce tolerance to water stress regimes, but little is known about its influence on sweet pepper development when applied exogenously. The current study sought to comprehend the effects of foliar GABA application on vegetative development, as well as physiological and biochemical constituents of Capsicum annuum L. A Field experiment was carried out during the 2021 pepper growing season and GABA (0, 2, and 4mM) concentrated solutions were sprayed on two Capsicum annuum L. genotypes including Scope F1 and Mercury, under drought stress of 50% and 30% field capacity. Results of the study showed that exogenous GABA supplementation significantly improved vegetative growth attributes such as, shoot and root length, fresh and dry weight, as well as root shoot ratio (RSR), and relative water content (RWC) while decreasing electrolyte leakage (EL). Furthermore, a positive and significant effect on chlorophyll a, b, a/b ratio and total chlorophyll content (TCC), carotenoids content (CC), soluble protein content (SPC), soluble sugars content (SSC), total proline content (TPC), catalase (CAT), and ascorbate peroxidase (APX) activity was observed. The application of GABA at 2mM yielded the highest values for these variables. In both genotypes, peroxidase (POD) and superoxide dismutase (SOD) content increased with growing activity of those antioxidant enzymes in treated plants compared to non-treated plants. In comparison with the rest of GABA treatments, 2mM GABA solution had the highest improvement in morphological traits, and biochemical composition. In conclusion, GABA application can improve development and productivity of Capsicum annuum L. under drought stress regimes. In addition, foliar applied GABA ameliorated the levels of osmolytes and the activities of antioxidant enzymes involved in defense mechanism.

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“…Di Stasio et al (2020) showed that priming the tomato seeds with sea-weed extract enhances tomato production by up to 50% under salt-affected soils (6.3 dS m −1 ). In terms of priming techniques, osmopriming is regarded as the most efficient for sweet pepper against 60 and 80 mM NaCl (Shumaila and Ullah 2020). Similarly, various studies have been conducted to understand the priming compounds and techniques on vegetable seeds to mitigate the negative effect of drought and salt stress conditions (Table 1).…”

Section: Primingmentioning

confidence: 99%

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Khalid

Huda²,

Yong³

et al. 2022

Plant Growth Regul

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In recent decades, the demand for vegetables has increased significantly due to the blooming global population. Climate change has affected vegetable production by increasing the frequencies and severity of abiotic and biotic stresses. Among the abiotic stresses, drought and salinity are the major issues that possess severe threats on vegetable production. Many vegetables (e.g., carrot, tomato, okra, pea, eggplant, lettuce, potato) are usually sensitive to drought and salt stress. The defence mechanisms of plants against salt and drought stress have been extensively studied in model plant species and field crops. Better understanding of the mechanisms of susceptibility of vegetables to drought and salt stresses will help towards the development of more tolerant genotypes as a long-term strategy against these stresses. However, the intensity of the challenges also warrants more immediate approaches to mitigate these stresses and enhance vegetable production in the short term. Therefore, this review enlightens the updated knowledge of responses (physiological and molecular) against drought and salinity in vegetables and potentially effective strategies to enhance production. Moreover, we summarized different technologies such as seed priming, genetic transformation, biostimulants, nanotechnology, and cultural practices adopted to enhance vegetable production under drought and salinity stress. We propose that approaches of conventional breeding, genetic engineering, and crop management should be combined to generate drought and salt resistance cultivars and adopt smart cultivation practices for sustainable vegetable production in a changing climate.

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Mitigation of Salinity-Induced Damages in Capsicum Annum L. (Sweet Pepper) Seedlings Using Priming Techniques: A Future Perspective of Climate Change in the Region

Cited by 14 publications

References 41 publications

Mitigation effect of alpha-tocopherol and thermo-priming in Brassica napus L. under induced mercuric chloride stress

Mitigation effect of alpha-tocopherol and thermo-priming in Brassica napus L. under induced mercuric chloride stress

Physiology of gamma-aminobutyric acid treated Capsicum annuum L. (Sweet pepper) under induced drought stress

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

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