The Ameliorative Effects of Silicon on Salt-Stressed Sorghum Seedlings and Its Influence on the Activities of Sucrose Synthase and PEP Carboxylase

Abdel-Latif, Amani; El‐Demerdash, Fatma M.

doi:10.4172/2329-955x.1000164

Cited by 7 publications

(3 citation statements)

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“…Pereira et al, (2004) compared 12 Si sources at increasing rates in rice crop and suggested that whatever the sources were, the benefit of Si application increased with rise in its dose. Silicon application diluted the impact of NaCl by increasing the sugar and protein accumulation in Sorghum leaves and increased growth and chlorophyll contents by activating phosphoenolpyruvate (PEP) carboxylase and sucrose synthase activity (Abdel-Latif & El-Demerdash, 2017). Moreover, jasmonic acid might have upregulated the plant genes associated with Si uptake under salinity and activated antioxidant defense systems and induced osmolyte production (Abdel-Haliem et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Silicon improves rice nutrition and productivity under salinity

Ahmed¹,

Murtaza²,

Ali

et al. 2019

PAK.J.BOT.

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Silicon (Si) is a beneficial nutrient for plant growth and productivity. Our investigation was conducted to study the influence of Si application for ameliorating the adverse effects of salinity on rice through sodium regulation in plant tissues. Three same textured soils (sandy clay loam) with different electrical conductivity (EC e : 2.85, 5.28 and 7.57 dS m-1) and pH (8.1, 8.6 and 8.9) were collected at 0-15 cm depth from the Bahauddin Zakariya University Agricultural Farm in Multan, Pakistan. The Si @ 50, 75 and 100 mg kg-1 as calcium silicate was applied to pots containing 10 kg sandy clay loam soil (sand 48%, silt 17%, clay 35%). A control without Si application was also maintained. The completely randomized design in 3 × 4 factorial experiment with three replications was established. Thirty days old, seedlings of Kernel Basmati rice were transplanted manually and standard cultural practices were followed. Results showed a significant (p<0.05) effect of soil salinity on rice growth and yield parameters. A reduction in grain, straw, leaf and root concentrations of Si, P and K/Na was observed under salinity; however, Si application at 100 mg kg-1 ameliorated the salinity stress and significantly increased the root/shoot dry weights, tiller numbers, grain numbers per spike, paddy yield, harvest index, and P and Si concentrations in root, straw, leaves and grains over control though similar to Si @ 75 mg kg-1 for shoot dry weight, number of tillers, harvest index, grain/root P concentration and leaf Si concentration. The Si application affected K/Na by increasing K uptake with an associated decrease in Na concentration in plant tissues. Thus, Si application at 100 or 75 mg kg-1 soil (200 or 150 kg ha-1) could be a useful strategy for rice production in salt-affected lands. Shoot dry weight, Number of tillers. Harvest index, Grain/root P conc., Leaf Si conc.

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Section: Discussionmentioning

confidence: 99%

Silicon improves rice nutrition and productivity under salinity

Ahmed¹,

Murtaza²,

Ali

et al. 2019

PAK.J.BOT.

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“…Although Si is not regarded as a necessary mineral nutrient, numerous lines of research have shown that plants benefit from it, especially when faced with biotic and abiotic challenges [68][69][70]. It can encourage photosynthesis by boosting chlorophyll levels [71] and influencing the activities of RuBisCO and PEPcarboxylase, which are necessary for CO 2 fixation [72,73]. In addition, due to its antioxidant properties and ability to prevent the up-regulation of several senescence-associated genes, ML may have a protective effect in allowing chlorophyll to survive under abiotic stressors [74,75].…”

Section: Discussionmentioning

confidence: 99%

Modulation of Antioxidant Defense Mechanisms and Morpho-Physiological Attributes of Wheat through Exogenous Application of Silicon and Melatonin under Water Deficit Conditions

et al. 2023

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Although the individual influences of silicon (Si) and melatonin (MT) have been widely studied under various abiotic stresses, little is known about their interaction under drought stress. In this study, an experiment in pots was carried out to investigate the potential of an individual or combined foliar application of silicon (Si) and melatonin (ML) (control (ck), water spray, 4.0 mM Si, 200 µM ML, and 4.0 mM Si + 200 µM ML) on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress) in order to check of grain yield and some important physiological characteristics. Under drought stress conditions, grain yield and yield attributes, water content and photosynthetic efficiency of wheat crops were significantly decreased. Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b), leaf relative water content (RWC), proline, total soluble sugars, and total soluble protein. As well as, the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML. This improvement was correlated with an obvious decrease in the levels of MDA, H2O2, and electrolyte leakage and increased water use efficiency. Conclusively, the combination of Si + ML significantly enhanced the 20.21% yield and various morpho-physiological attributes of drought-stressed wheat plants and can be recommended as a promising treatment to enhance wheat productivity in drought-affected regions. Additionally, the results of this study may open up a whole new area of research opportunities at the transcriptional level to further understand the mechanisms underlying how Si + ML integrates and interacts with plants under drought stress.

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“…Silicon (Si) plays a beneficial role in plant growth (Chanchal et al, 2016;Nwugo & Huerta, 2010), by reducing the detrimental impacts of various biotic and abiotic stresses, such as diseases (Van et al, 2015), drought (Helaly et al, 2017), temperature (Soundararajan et al, 2014), metal stress (Nwugo and Huerta, 2010) and nutrient imbalance (Ma & Yamaji, 2008). The beneficial effects of Si for salt tolerance have been reported in many crop species such as barley (Liang, 1999), maize (Rohanipoor et al, 2013), wheat (Ahmad, 2014) and sorghum (Abdel-Latif & El-Demerdash, 2017). All these studies revealed the fundamental roles of Si in crop production under various abiotic stress conditions.…”

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confidence: 99%

Amelioration of salt‐induced damage on alfalfa by exogenous application of silicon

Zhang

Xie

et al. 2021

Grassland Science

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In plant, salt stress affects photosynthesis, lipid and energy metabolism, protein synthesis, which leads to ion toxicity, oxidative stress, nutrient disparity, and finally results in yield reduction and plant death. Salt stress usually leads to accumulation of reactive oxygen species (ROS) such as superoxide anion, hydroxyl radical, hydrogen peroxide and singlet oxygen (Liang, 1999), which subsequently disrupts normal metabolism (Zushi et al., 2009), plasma membrane and endomembrane systems (Liang, 1999). The overproduction and accumulation of these ROS cause in lipid peroxidation and membrane damage. In addition, photosystem II (PS II) is an important indicator in plant response to abiotic stresses (Baker, 1991) and is relatively sensitive to salt stress (Parihar et al., 2015). In order to alleviate the damage caused by salt

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The Ameliorative Effects of Silicon on Salt-Stressed Sorghum Seedlings and Its Influence on the Activities of Sucrose Synthase and PEP Carboxylase

Cited by 7 publications

References 0 publications

Silicon improves rice nutrition and productivity under salinity

Silicon improves rice nutrition and productivity under salinity

Modulation of Antioxidant Defense Mechanisms and Morpho-Physiological Attributes of Wheat through Exogenous Application of Silicon and Melatonin under Water Deficit Conditions

Amelioration of salt‐induced damage on alfalfa by exogenous application of silicon

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