Silicon reduces aluminum content in tissues and ameliorates its toxic effects on potato plant growth

Dorneles, Athos Odin Severo; Pereira, Aline Soares; Rossato, Liana Verônica; Possebom, Gessieli; Sasso, Victória Martini; Bernardy, Katieli; Sandri, Ruziele De Quadros; Nicoloso, Fernando Teixeira; Ferreira, Paulo Ademar Avelar; Tabaldi, Luciane Almeri

doi:10.1590/0103-8478cr20150585

Cited by 24 publications

(12 citation statements)

References 29 publications

(30 reference statements)

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“…One possibility is that hydroxyaluminosilicate complexes may have formed in large quantities in the roots of this genotype, thereby preventing the translocation of Al to the shoot. As observed by Dorneles et al (2016), Si promoted a significant reduction in Al content in the shoot of potato plants. This Al reduction promoted by Si in the shoot can reduce the toxic effects of Al in source tissues.…”

Section: Discussionsupporting

confidence: 58%

“…For this genotype, shoot growth ( Fig. 2a) and the number of leaves and leaf area (Dorneles et al 2016) were increased in plants exposed to 1.0 mM Si, suggesting a reduction in the concentration of pigments with increased leaf biomass.…”

Section: Discussionmentioning

confidence: 89%

“…Nodal segments (1.0 cm long without leaves) of both genotypes were propagated in vitro for 25 days in culture medium MS (Murashige and Skoog 1962 (Tabaldi et al 2009;Dorneles et al 2016).…”

Section: Plant Materials and Growth Conditionmentioning

confidence: 99%

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Aluminum stress tolerance in potato genotypes grown with silicon

et al. 2019

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Potato cultivation is widespread around the world, being exposed to several abiotic stresses, including soils with high aluminum (Al) availability. Silicon (Si) is recognized for alleviating the stress caused by Al in various plant species. Thus, the aim of this study was to investigate the potential of Si to mitigate the oxidative stress caused by Al in potato genotypes, exhibiting differential sensitivity toward this element. Plants of the Al-sensitive genotype (SMIJ319-7)and Al-tolerant genotype (SMIF212-3) were grown for two weeks in a hydroponic system with the nutrient solution containing combinations of Al (0 and 1.85 mM) and Si (0, 0.5 and 1.0 mM). At the end of the experiment, photosynthetic parameters, pigment content, root and shoot growth, superoxide dismutase and guaiacol peroxidase activity and lipid peroxidation were evaluated. In both potato genotypes Al BASIC AREAS -Article inhibited root and shoot growth and decreased all photosynthetic parameters and superoxide dismutase activity. Silicon was able to partially alleviate the damage caused by Al in parameters of root growth in the Al-tolerant genotype while increasing the activity of antioxidant enzymes and mitigating the Al-induced damage to membrane lipids in roots and shoot in both genotypes. The Al-tolerant genotype showed greater water use efficiency and transpiration rate in control conditions as compared to the Al-sensitive genotype. These data indicate that Si application can improve the defense ability of the tested potato genotypes against Al toxicity and that the Al-tolerant genotype is more responsive to Si.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 89%

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Aluminum stress tolerance in potato genotypes grown with silicon

et al. 2019

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“…Water losses may be decreased through deposition of silica (Haynes, 2014). Silica imparts erectness and also improves photosynthesis in plants (Dorneles et al, 2016). Exposure of plants to different environmental stress, biotic or abiotic, produces various reactive oxygen species (Chiban et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Role of soluble silica in alleviating oxidative stress in soybean crop

Rangwala¹,

Bafna²,

Vyas³

et al. 2018

IJARe

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Sudden changes in environment causes abiotic and biotic stress due to which farmers are facing problem of decreased yield. The present study was designed to improve yield by alleviating oxidative stress in crops. Silicon is gaining importance in promoting growth and yield of plants. Soluble silica in the form of AgriboosterTM was sprayed on test field of soybean during cultivation. Proline content was found to be decreased significantly in soybean sprayed with soluble silica. Significantly decreased malondialdehyde content was observed in soybean which indicates beneficial role of silica in preventing lipid peroxidation. Soluble silica increased peroxidase activity by increasing water availability and total phenol content was also found to be increased significantly in soybean. So from the present study it can be concluded that silica when applied on crops in soluble form prevent oxidative stress caused due to various environmental factors which may help in better quality product and yield.

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“…The deposition of Si may decrease water losses through evapotranspiration and increase tolerance to pests, diseases (Haynes, 2014), heavy metals, toxic aluminum (Prabagar et al, 2010), and lodging. In addition, plants become more erect and show improved photosynthetic efficiency in the presence of Si (Pulz et al, 2008;Dorneles et al, 2016). Mussel shells are also another alternative, with similar effects on soil pH and Al 3+ neutralization (Álvarez et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Surface application of limestone and calcium-magnesium silicate in a tropical no-tillage system

Castro

Crusciol²,

Costa

et al. 2016

J. Soil Sci. Plant Nutr.

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Although lime is currently the most commonly applied material for soil acidity correction in Brazil, calciummagnesium silicate application may efficiently replace this source due to its higher solubility and silicon supply, which is beneficial for plant development. This study aimed to evaluate the efficiency of surface liming and silicate application on soil chemical attributes as well as soybean and maize nutrition, yield components, and grain yield. The experiment was conducted in a Rhodic Hapludox in Botucatu-SP, Brazil. The randomized complete block design contained 16 replications. Treatments consisted of two materials for soil acidity correction (dolomitic lime, calcium/magnesium silicate), applied on October 2006 to raise base saturation up to 70%, and a control, with no acidity correction. Soybean and maize were sown in 2006/2007 and 2007/2008, respectively. After 18 months Ca-Mg silicate corrected soil acidity up to 0.60 m, and increased exchangeable base levels up to 0.40 m. Silicate increased silicon concentrations in plant tissues in both crops as well as phosphorus in soybean. The application of both sources increased calcium and magnesium concentrations as well as yield components and yield grains of soybean and maize. Soil acidity correction improved the efficiency of fertilizers applied for grain production.Keywords: acid soils, Brazilian 'Cerrado', liming, annual crops 363 Surface application of limestone and calcium-magnesium silicate in a tropical no-tillage system

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Silicon reduces aluminum content in tissues and ameliorates its toxic effects on potato plant growth

Cited by 24 publications

References 29 publications

Aluminum stress tolerance in potato genotypes grown with silicon

Aluminum stress tolerance in potato genotypes grown with silicon

Role of soluble silica in alleviating oxidative stress in soybean crop

Surface application of limestone and calcium-magnesium silicate in a tropical no-tillage system

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