Exogenous Ca 2 SiO 4 enrichment reduces the leaf apoplastic Na + and increases the growth of okra ( Abelmoschus esculentus L.) under salt stress

Qadir, Abdul; Khan, Sabaz Ali; Ahmad, Rafiq; Masood, Samina; Irshad, Muhammad; Kaleem, Fawad; Kumar, Sunjeet; Shahzad, Muhammad

doi:10.1016/j.scienta.2016.11.008

Cited by 8 publications

(4 citation statements)

References 52 publications

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“…Plant salinity tolerance is largely dependent on maintaining the appropriate balance between ions and their optimal concentration. The increased uptake and buildup of Na + is principally responsible for the damage to plant cells and the resulting growth retardations in crops subjected to salt stress ( Qadir et al., 2017 ). The sensitivity of crop species and genotypes depends on the level of growth reduction caused by salinity ( Shahzad et al., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

“…The elevated Na + concentrations under salinity stress hinder Ca 2+ , K + , and Mg 2+ transport into leaf cells, which may be the cause of the disruption of plant metabolism and decreased plant growth. Numerous studies have revealed that cations such as Mg 2+ , K +, or Ca 2+ have poor selectivity as a result of Na + toxicity in many plants ( Qadir et al., 2017 ; Kumar et al., 2019 ). In the current investigation, the increase in Na + concentration corresponds nicely with the results of K + concentration ( Figures 3A , 4A ).…”

Section: Discussionmentioning

confidence: 99%

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Low apoplastic Na+ and intracellular ionic homeostasis confer salinity tolerance upon Ca2SiO4 chemigation in Zea mays L. under salt stress

Mahmood,

Odeibat,

Ahmad

et al. 2024

Front. Plant Sci.

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Salinity is known to have a greater impact on shoot growth than root growth. Na+ buildup in plant tissue under salt stress has been proposed as one of the main issues that causes growth inhibition in crops via ionic imbalances, osmotic stress and pH disturbances. However, the evidence for apoplastic Na+ buildup and the role of silicon in Na+ accumulation at the subcellular level is still enigmatic. The current study focuses on the accumulation of Na+ in the apoplast and symplast of younger and older leaves of two maize varieties (Iqbal as salt-tolerant and Jalal as salt-sensitive) using hydroponic culture along with silicon supplementation under short-term salinity stress. Subcellular ion analysis indicated that silicon nutrition decreased Na+ concentration in both apoplastic washing fluid and symplastic fluid of maize under salt stress. The addition of silicon under NaCl treatment resulted in considerable improvement in fresh biomass, relative water content, chlorophyll content, and concentration of important subcellular ions (i.e., Ca2+, Mg2+, and K+). Knowledge of subcellular ion analysis is essential for solving the mechanisms underlying vital cellular functions e.g. in the current study, the soluble Na+ concentration in the apoplast of older leaves was found to be significantly greater (36.1 mM) in the salt-sensitive variety under NaCl treatment, which was 42.4% higher when compared to the Na+ concentration in the salt-tolerant variety under the same treatment which can influence permeability of cell membrane, signal transduction pathways and provides insights into how ion compartmentalization can contributes to salt tolerance. Calcium silicate enrichment can contribute to increased growth and improved ionic homeostasis by minimizing leaf electrolyte leakage, improving mechanical functions of cell wall and reducing water loss, and improved photosynthetic function. In current investigation, increased water content and intracellular ionic homeostasis along with reduced concentration of Na+ in the maize leaf apoplast suggest that calcium silicate can be used to ameliorate the adverse effects of salt stress and obtain yield using marginal saline lands.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Low apoplastic Na+ and intracellular ionic homeostasis confer salinity tolerance upon Ca2SiO4 chemigation in Zea mays L. under salt stress

Mahmood,

Odeibat,

Ahmad

et al. 2024

Front. Plant Sci.

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“…After harvesting, plant growth parameters (leaf area, leaf length, shoot height and root length) were analyzed by following the (Saiz-Fernández et al, 2020) method. Fresh and dry weight of the leaves and roots were measured by using the analytical balances (Qadir et al, 2017). Total ion concentration (Na + , K + , Ca 2+ and Mg 2+ ) in leaves and roots were measured by following the (Shahzad et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Assessment of Growth and Physiological Traits of Chenopodium quinoa Lines Under Different Salt Levels

Zafar,

Shahzad,

Akram

et al. 2024

SJA

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C henopodium quinoa (Willd.) is cultivated mainly for its edible grains, is considered as one of the crops that may be able to maintain food security in this century due to its remarkable nutritional qualities, such as a high protein content, fiber, lipids, free of gluten, having considerable amount of fatty-acids, Abstract | Elevating salinity level has become a worldwide threat to agricultural lands. High level concentration of salts hampers growth of plants and its yield of biomass by impacting major physiological mechanisms i.e., ionic, oxidative and osmotic stress. One possible and climate resilient strategy is to introduce new crops that can bear high level salinity and allow irrigation with saline water. Quinoa has great potential to grow under saline conditions having outstanding nutritious value. Pot based complete block design was conducted in COMSATS University Abbottabad, Pakistan during winter season. Five quinoa lines (L30, L81, L11, L9, and L24) were grown in sandy loam soil containing 15 dS m -1 and 30dS m -1 NaCl salt treatments. The results revealed that better growth was noticed in line L30 and L24 under 15 and 30 dSm -1 NaCl Salt treatments as compared to other three lines. Whereas, minimum plant growth was noticed in genotype L9 and L81 under 15 and 30 dSm -1 NaCl salt treatments. Highest leaf area, chlorophyll contents, and protein contents were noted in all condition in line L30 and L24 as compared other lines. High levels of potassium, calcium and magnesium and lowest sodium were noted in quinoa lines L30 and L24 aided in resisting salt stress and may be the cause of increased growth in both saline and non-saline soil. The present trial recognised the maximum salt-tolerant lines under severe salt stress, it might be applied to improve quinoa's tolerance to salt in a later breeding phase.

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“…Soil salinity is the most important problem amongst many faced in the flooded areas because it adversely affects the profitability of crops all over the world. In some areas, this is because of low precipi-tation and high transpiration which unsettle the soil yield potential (Qadir et al, 2017). Moreover, the adverse effect of salinity has been exacerbated by humans activity (Iqra et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of Sodium Chloride Stress on the Adaptation of Zea mays Seedlings at the Expense of Growth

Yousaf¹,

Ali²,

Ali³

2021

SJA

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Exogenous Ca 2 SiO 4 enrichment reduces the leaf apoplastic Na + and increases the growth of okra ( Abelmoschus esculentus L.) under salt stress

Cited by 8 publications

References 52 publications

Low apoplastic Na+ and intracellular ionic homeostasis confer salinity tolerance upon Ca2SiO4 chemigation in Zea mays L. under salt stress

Low apoplastic Na+ and intracellular ionic homeostasis confer salinity tolerance upon Ca2SiO4 chemigation in Zea mays L. under salt stress

Assessment of Growth and Physiological Traits of Chenopodium quinoa Lines Under Different Salt Levels

Effect of Sodium Chloride Stress on the Adaptation of Zea mays Seedlings at the Expense of Growth

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