Calcium homeostasis and potential roles in combatting environmental stresses in plants

Shabbir, Rubab; Javed, Talha; Hussain, Sadam; Ahmar, Sunny; Naz, Misbah; ZAFAR, Hina; Pandey, Saurabh; Chauhan, Jyoti; Siddiqui, Manzer H.; Chen, Pinghua

doi:10.1016/j.sajb.2022.05.038

Cited by 43 publications

(22 citation statements)

References 182 publications

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“…Indeed, plants respond to drought stress in a variety of ways ( Gaufichon et al, 2010 ; Islam et al, 2021 ; Ahamd et al, 2022a ; Akhtar et al, 2022 ; Kumar et al, 2022 ; Shabbir et al, 2022 ). When plants are exposed to drought, they typically exhibit a series of morphophysiological changes associated with tolerance, including the maintenance of free proline accumulation, stomatal conductance, chlorophyll content, substomatal carbon dioxide concentration, canopy temperature, plant height, and stem diameter ( Mafakheri et al, 2010 ; Ali et al, 2011 ; Araus et al, 2012 ; Gao et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Determination of morpho-physiological and yield traits of maize inbred lines (Zea mays L.) under optimal and drought stress conditions

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Globally, climate change could hinder future food security that concurrently implies the importance of investigating drought stress and genotype screening under stressed environments. Hence, the current study was performed to screen 45 diverse maize inbred lines for 18 studied traits comprising phenological, physiological, morphological, and yield characters under optimum and water stress conditions for two successive growing seasons (2018 and 2019). The results showed that growing seasons and water regimes significantly influenced (p < 0.01) most of the studied traits, while inbred lines had a significant effect (p < 0.01) on all of the studied traits. The findings also showed a significant increase in all studied characters under normal conditions compared to drought conditions, except chlorophyll content, transpiration rate, and proline content which exhibited higher levels under water stress conditions. Furthermore, the results of the principal component analysis indicated a notable distinction between the performance of the 45 maize inbred lines under normal and drought conditions. In terms of grain yield, the drought tolerance index (DTI) showed that Nub60 (1.56), followed by Nub32 (1.46), Nub66 (1.45), and GZ603 (1.44) were the highest drought-tolerant inbred lines, whereas Nub46 (0.38) was the lowest drought-tolerant inbred line. These drought-tolerant inbred lines were able to maintain a relatively high grain yield under normal and stress conditions, whereas those drought-sensitive inbred lines showed a decline in grain yield when exposed to drought conditions. The hierarchical clustering analysis based on DTI classified the forty-five maize inbred lines and eighteen measured traits into three column- and row-clusters, as inbred lines in cluster-3 followed by those in cluster-2 exhibited greater drought tolerance in most of the studied traits. Utilizing the multi-trait stability index (MTSI) criterion in this study identified nine inbred lines, including GZ603, as stable genotypes in terms of the eighteen studied traits across four environments. The findings of the current investigation motivate plant breeders to explore the genetic potential of the current maize germplasm, especially in water-stressed environments.

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Section: Introductionmentioning

confidence: 99%

Determination of morpho-physiological and yield traits of maize inbred lines (Zea mays L.) under optimal and drought stress conditions

et al. 2022

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“…Abiotic stresses are assessed to be the main cause of the yield reduction in plants and thus, are considered a prodigious constraint to crop productivity ( Yousaf et al, 2018 ; Gilani et al, 2020 ; Ali et al, 2021 ; Ahmad et al, 2022 ; Hussain et al, 2022 ; Nawaz et al, 2022 ; Panikar et al, 2022 ). Plants are often sensitive to the low and high accessibility of different heavy metal ions as essential micronutrients ( Awad et al, 2021 ; Javed et al, 2021 ; Koleva et al, 2022 ; Shabbir et al, 2022 ; Xiao et al, 2022 ). Heavy metals are elements with a large atomic mass and are at least five times denser than water ( Tchounwou et al, 2012 ; Singhal et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress

et al. 2022

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Being sessile organisms, plants cannot escape unwanted changes in the environment. The rapid human population explosion caused significant environmental problems. Heavy metals produced through various sources can cause severe damage to living organisms. The study was planned to evaluate four grass species’ morpho-physiological growth characteristics and phytoremediation capabilities under chromium (Cr) and lead stress (Pb) in the arid climate. Typha angustifolia, Tragus roxburghii, Aeluropus logopoides, and Cenchrus ciliaris grass species were used for the study. One-year-old stubbles from the Cholistan desert were used for the experiment. Cr treatments in the form of K2Cr2O7 were applied at 0, 20, 40, and 80 mg L–1, whereas Pb was applied as PbCl2 at 0, 50, 200, and 500 mg L–1 as control, low, moderate and high-stress, respectively. After 6 weeks of heavy metals treatments, plants were harvested and analyzed for growth performance and phytoremediation capabilities. Results depicted that, regarding morphological attributes, T. angustifolia performed better, followed by C. ciliaris; no clear pattern was observed for T. roxburghii and A. logopoides. The CO2 assimilation rate (Co2d) and water use efficiency (WUE) increased as the heavy metal stress increased in all species under both metals. In contrast, total chlorophyll content was higher under low stress. Other physiological parameters, such as relative humidity (RHd), net photosynthetic rate (A), transpiration rate (E), stomatal conductance (Gs), leaf internal CO2 concentration (Ci) and membrane stability index (MSI) gradually decreased as the Cr, and Pb stress levels increased among all the species. Moreover, Cr and Pb absorption contents of T. angustifolia were higher than the other three species at each stress level. Overall, T. angustifolia thrived against heavy metals stress and showed higher biomass, maximum photosynthetic measurements, WUE and higher metal absorption among all the selected species. Results concluded that although all the selected species behaved fine under stress conditions, T. angustifolia performance was better; thus, it can be used to remediate the soil near industrial estates.

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“…Studies have been done on the heat-shock response of spinach, both with whole plants and with detached leaf tissue (Moradpour et al 2021). After being exposed to heat shock (35-50°C) for 30 min, CO 2 assimilation decreases and pigment proteins in thylakoid membranes aggregate, slowing the plant's ability to photosynthesise (Tang et al 2007;Shabbir et al 2022). The first heat-shock proteins in spinach leaf tissue are induced when the temperature reaches 28°C, and a full range of heat-shock proteins are produced at 36°C.…”

Section: Introductionmentioning

confidence: 99%

“…In terms of plant growth, Si an essential nutrient involved in various key functions (i.e. membrane stability, cell wall stabilisation, enhancement of key enzyme activities and phytohormones interaction) under abiotic stress (Naz et al 2022;Shabbir et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Use of mineral fertilisation is considered a novel approach to mitigate deleterious effects of heat stress in spinach. Moreover, balanced Si fertilisation is essential for normal physiological functioning and maintaining structural stability of plants (Waraich et al 2012;Shabbir et al 2022;Zaman et al 2022). Therefore, understanding the response of spinach to heat stress when receiving nutrient amendments will be of value to spinach growers.…”

Section: Introductionmentioning

confidence: 99%

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Silicon-mediated improvement of biomass yield and physio-biochemical attributes in heat-stressed spinach (

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Zaman²,

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et al. 2022

Crop & Pasture Science

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Context. Defensive action of plants against biotic and abiotic stresses has been augmented by silicon (Si). Spinach (Spinacia oleracea L.) is a nutritious leafy vegetable that is a cold-tolerant but heat-sensitive crop. Aims and methods. The ability of exogenous application of Si (0, 2, 4 and 6 mmol L −1 in the form of K 2 SiO 3 ) to alleviate heat stress in spinach cv. Desi Palak was investigated. After an acclimatisation period, plants were grown with or without heat stress for 15 days, followed by Si treatment for 25 days. Plant growth and physiology were assessed at 65 days after sowing. Key results. Heat stress significantly inhibited plant growth, water status and photosynthesis, soluble sugar and protein contents, and osmolyte status in spinach leaves, but increased electrolyte leakage, activities of antioxidant enzymes, and proline content. Application of Si alleviated heat stress by enhancing water status, photosynthetic pigments, soluble proteins and essential minerals, and by reducing damage of the plasma membrane. The accumulation of osmolytes counterbalance the osmotic stress imposed by heat. Conclusions. Silicon plays a vital role in alleviating effects of heat stress by improving water status and photosynthetic rate, and accruing osmoprotectants other than proline. Implications. Exogenous application of Si is an efficient strategy to boost tolerance of spinach plants to heat stress, having significant impact on growth and productivity of spinach at higher temperatures.

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Calcium homeostasis and potential roles in combatting environmental stresses in plants

Cited by 43 publications

References 182 publications

Determination of morpho-physiological and yield traits of maize inbred lines (Zea mays L.) under optimal and drought stress conditions

Determination of morpho-physiological and yield traits of maize inbred lines (Zea mays L.) under optimal and drought stress conditions

Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress

Silicon-mediated improvement of biomass yield and physio-biochemical attributes in heat-stressed spinach (

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