Role of silicon in abiotic stress tolerance in wheat

Sogarwal, Anju; Kumari, Nilima; Sharma, Vinay

doi:10.1007/s42976-022-00346-2

Cited by 5 publications

(2 citation statements)

References 88 publications

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“…The increased and improved activity level of antioxidant enzymes in Si treated plants is an alternative approach of plants to ameliorate Cd toxicity. Sogarwal et al [ 75 ] reported that Si is a signaling molecule that induces physiological, biochemical or molecular tolerance under stress condition. Similarly to other previous results, Si decrease the excess MDA and ROS in P. glaucum leaves by enhancing the antioxidative defense system during Cd stress treatment.…”

Section: Discussionmentioning

confidence: 99%

Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Iwuala,

Olajide,

Abiodun

et al. 2024

Heliyon

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Section: Discussionmentioning

confidence: 99%

Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Iwuala,

Olajide,

Abiodun

et al. 2024

Heliyon

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“…Si can improve the ability of plants to cope with reduced rainfall frequency in several ways. First, increasing Si availability has been reported to enhance water use efficiency, which can improve mineral uptake during dry periods (Eneji et al, 2008;Neu et al, 2017;Bhardwaj and Kapoor, 2021;Johnson et al, 2022;Sogarwal et al, 2022). Second, Si helps to regulate photosynthesis in various ways (Maghsoudi et al, 2016) and it can facilitate water uptake by influencing the osmotic potential of plants (Khattab et al, 2014;Bhardwaj and Kapoor, 2021).…”

Section: Introductionmentioning

confidence: 99%

The effects of dunite fertilization on growth and elemental composition of barley and wheat differ with dunite grain size and rainfall regimes

Rijnders,

Vicca,

Struyf

et al. 2023

Front. Environ. Sci.

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Enhanced weathering (EW) of silicate rocks is a negative emission technology that captures CO2 from the atmosphere. Olivine (Mg2SiO4) is a fast weathering silicate mineral that can be used for EW and is abundant in dunite rock. In addition to CO2 sequestration, EW also has co-benefits in an agricultural context. Adding silicate minerals to soils can significantly improve crop health and growth as the weathering releases elements such as silicon (Si) that can stimulate crop growth and increase stress resistance, a co-benefit that is becoming increasingly important as global warming proceeds. However, dunite also contains heavy metals, especially nickel (Ni) and chromium (Cr), potentially limiting its use in an agricultural context. In this study, we investigate the influence of dunite addition on growth of barley and wheat in a mesocosm experiment. We amended the soil with the equivalent of 220 ton ha-1 dunite, using two grain sizes (p80 = 1020 µm and p80 = 43.5 µm), under two rainfall regimes (each receiving the same amount of 800 mm water y−1 but at daily versus weekly rainfall frequency). Our results indicate that the amendment of fine dunite increased leaf biomass but only with daily rainfall. Aboveground biomass was significantly reduced with weekly rainfall compared to daily rainfall, but this reduction was slightly alleviated by fine dunite application for wheat. This indicates a positive effect of dunite during drying-rewetting cycles. For barley the negative effect of reduced rainfall frequency was not counterbalanced by dunite application. Contrary to our expectations, calcium (Ca) and Si concentrations in crops decreased with fine dunite application, while, as expected, magnesium (Mg) concentration increased. Coarse dunite application did not significantly affect crop nutrient concentrations, most likely due to its lower weathering rate. In contrast to what was expected, plant Ni and Cr concentrations did not increase with dunite application. Hence, despite high dunite application in our experiment, plants did not accumulate these heavy metals, and only benefited from the released nutrients, albeit dependent on grain size and rainfall frequency.

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Silicon Alleviates Fluoride Induced Oxidative Damage in Wheat Cultivars by Improving Antioxidants Defense System and Reducing Fluoride Uptake

Sogarwal

Kumari

Sharma

2023

Silicon

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Role of silicon in abiotic stress tolerance in wheat

Cited by 5 publications

References 88 publications

Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

Silicon ameliorates cadmium (Cd) toxicity in pearl millet by inducing antioxidant defense system

The effects of dunite fertilization on growth and elemental composition of barley and wheat differ with dunite grain size and rainfall regimes

Silicon Alleviates Fluoride Induced Oxidative Damage in Wheat Cultivars by Improving Antioxidants Defense System and Reducing Fluoride Uptake

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