Effects of silicon on the toxicity of aluminium to soybean

Baylis, A. D.; Gragopoulou, C.; Davidson, Keith; Birchall, J. D.

doi:10.1080/00103629409369061

Cited by 80 publications

(39 citation statements)

References 10 publications

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“…As much as 80% amelioration of the decrease in root length was achieved using 2.8 mM Si and 50 mM Al, and the addition of Si reduced Al uptake into the roots (Hammond et al, 1995). Baylis et al (1994) found that Si ameliorated the effects of Al toxicity in soybean, but that this was dependent on pH. It has been established that interaction between Si and Al, reducing the activity of toxic metal ions in the medium, is one possible external mechanism for the detoxification of Al toxicity by Si (Hiradate et al, 1998).…”

Section: Mechanisms For Silicon-mediated Alleviation Of Metal Toxicitymentioning

confidence: 99%

“…The alleviative effect on Al toxicity by Si and its possible mechanisms have been examined most extensively. Interactions of Al and Si have been studied in at least eight plant species but contradictory findings have been reported Applying Si has thus been suggested as an alternative approach to detoxifying Al toxicity in tomato (Lycopersicum esculentum L.) (Peaslee and Frink, 1969), sorghum (Sorghum bicolor L.) (Galvez et al, 1987;Galvez and Clark, 1991;Baylis et al, 1994), and barley (Hordeum vugare L.) (Hammond et al, 1995;Liang et al, 2001).…”

Section: Mechanisms For Silicon-mediated Alleviation Of Metal Toxicitymentioning

confidence: 99%

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Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Liang

Sun

Zhu

et al. 2007

Environmental Pollution

1,002

605

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Although silicon (Si) is the second most abundant element both on the surface of the Earth's crust and in soils, it has not yet been listed among the essential elements for higher plants. However, the beneficial role of Si in stimulating the growth and development of many plant species has been generally recognized. Silicon is known to effectively mitigate various abiotic stresses such as manganese, aluminum and heavy metal toxicities, and salinity, drought, chilling and freezing stresses. However, mechanisms of Si-mediated alleviation of abiotic stresses remain poorly understood. The key mechanisms of Si-mediated alleviation of abiotic stresses in higher plants include: (1) stimulation of antioxidant systems in plants, (2) complexation or co-precipitation of toxic metal ions with Si, (3) immobilization of toxic metal ions in growth media, (4) uptake processes, and (5) compartmentation of metal ions within plants. Future research needs for Si-mediated alleviation of abiotic stresses are also discussed.

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Section: Mechanisms For Silicon-mediated Alleviation Of Metal Toxicitymentioning

confidence: 99%

Section: Mechanisms For Silicon-mediated Alleviation Of Metal Toxicitymentioning

confidence: 99%

Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Liang

Sun

Zhu

et al. 2007

Environmental Pollution

1,002

605

View full text Add to dashboard Cite

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“…These complexes become hardly mobile (Baylis et al 1994). Badora (2001bBadora ( , 2002a also reported that in hydroponic the decrease of soluble Al forms occurred after adding meta-silicates.…”

Section: Silicon Compounds Versus Aluminum and Manganese Toxicitymentioning

confidence: 99%

“…Some studies claim that the detoxication mechanism occurs in the soil solution (Baylis et al 1994;Badora 2002a,b), while others assume that it occurs within the plant (Cocer et al 1998;Hodson, Sangster 1999).…”

Section: Silicon Compounds Versus Aluminum and Manganese Toxicitymentioning

confidence: 99%

“…The positive effects of Si can be listed as follows: − endoderm silification (forming a thin Si coating that prevents pathogen and parasite penetration through the roots) − building a thin coating on the leaf epidermis, protecting against pathogen invasion − inducing microelements' uptake (Zn, Mn) under conditions of excessive phosphate levels in the environment − participating in lignin's synthesis − controlling the rigidity and elasticity of cell walls − controlling the rigidity of the leaf blade by eliminating the negative influence of nitrogen over-fertilization − improving the photosynthesis rate by controlling leaf blade exposure (leaf blade hardening) to solar radiation − increasing chlorophyll content − lowering the requirements for water (more economic water balance and lower transpiration coefficient) Si 's influence on plants' metabolism plays quite an important role in detoxicating the excessive quantities of Al, Mn, Fe (Baylis et al 1994;Marschner 1998;Iwasaki et al 2002) and heavy metals (Chen et al 2000;Badora 2001a,b;Badora, Grenda 2002).…”

Section: Silicon Compoundsmentioning

confidence: 99%

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Polymeric Forms of Al₁₃and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils

Badora

2016

Mineralogia

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Aluminium Toxicity to Plants as Influenced by the Properties of the Root Growth Environment Affected by Other Co-Stressors: A Review

Siecińska

Nosalewicz

2016

Reviews of Environmental Contamination and Toxicology

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Aluminium toxicity to crops depends on the acidity of the soil and specific plant resistance. However, it is also strongly affected by other environmental factors that have to be considered to properly evaluate the resultant effects on plants. Observed weather perturbations and predicted climate changes will increase the probability of co-occurrence of aluminium toxicity and other abiotic stresses.In this review the mechanisms of plant-aluminium interactions are shown to be influenced by soil mineral nutrients, heavy metals, organic matter, oxidative stress and drought. Described effects of aluminium toxicity include: root growth inhibition, reduction in the uptake of mineral nutrients resulting from the inhibition of transport processes through ion channels; epigenetic changes to DNA resulting in gene silencing. Complex processes occurring in the rhizosphere are highlighted, including the role of soil organic matter and aluminium detoxification by mucilage.There is a considerable research gap in the understanding of root growth in the soil environment in the presence of toxic aluminium concentrations as affected by interactions with abiotic stressors. This knowledge is important for the selection of feasible methods aimed at the reduction of negative consequences of crop production in acidic soils affected by adverse growth environment.

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Effects of silicon on the toxicity of aluminium to soybean

Cited by 80 publications

References 10 publications

Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Polymeric Forms of Al₁₃and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils

Aluminium Toxicity to Plants as Influenced by the Properties of the Root Growth Environment Affected by Other Co-Stressors: A Review

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Effects of silicon on the toxicity of aluminium to soybean

Cited by 80 publications

References 10 publications

Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: A review

Polymeric Forms of Al13and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils

Aluminium Toxicity to Plants as Influenced by the Properties of the Root Growth Environment Affected by Other Co-Stressors: A Review

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Polymeric Forms of Al₁₃and Silicon Compounds as Unconventional Binding Agents for some Toxic Metals in Soils