Assessment of the Effect of Silicon on Antioxidant Enzymes in Cotton Plants by Multivariate Analysis

Moldes, Carlos Alberto; Filho, O. F. de Lima; Camiña, José Manuel; Kiriachek, Soraya Gabriela; Molas, María Lía; Tsai, Siu Mui

doi:10.1021/jf4039088

Cited by 19 publications

(4 citation statements)

References 46 publications

(88 reference statements)

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“…Despite many studies on Si in plants, it is still not understood how it acts on physiological and biochemical processes. The effects of silicon may involve cellular changes that stimulate alteration of biochemistry by determining oxidative stress as performed in this study, but also alterations in gene synthesis, protein structure and transport of molecules across the membranes (Moldes et al 2013).…”

Section: Discussionmentioning

confidence: 83%

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: Discussionmentioning

confidence: 83%

Aluminum stress tolerance in potato genotypes grown with silicon

et al. 2019

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“…An assessment of the effect of Si on antioxidant enzymes in cotton showed that Si altered the activities of guaiacol peroxidase (GPOX), catalase (CAT), and ascorbate peroxidase (APX) in roots and leaves, whereas lipid peroxidase activity was not affected. These authors reported that enzymatic activities in the roots and leaves of plants were changed in parallel with silicon supplementation [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

Screening and Expression of a Silicon Transporter Gene(Lsi1)in Wild-Type Indica Rice Cultivars

Sahebi

Hanafi

Rafii

et al. 2017

BioMed Research International

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Silicon (Si) is one of the most prevalent elements in the soil. It is beneficial for plant growth and development, and it contributes to plant defense against different stresses. The Lsi1 gene encodes a Si transporter that was identified in a mutant Japonica rice variety. This gene was not identified in fourteen Malaysian rice varieties during screening. Then, a mutant version of Lsi1 was substituted for the native version in the three most common Malaysian rice varieties, MR219, MR220, and MR276, to evaluate the function of the transgene. Real-time PCR was used to explore the differential expression of Lsi1 in the three transgenic rice varieties. Silicon concentrations in the roots and leaves of transgenic plants were significantly higher than in wild-type plants. Transgenic varieties showed significant increases in the activities of the enzymes SOD, POD, APX, and CAT; photosynthesis; and chlorophyll content; however, the highest chlorophyll A and B levels were observed in transgenic MR276. Transgenic varieties have shown a stronger root and leaf structure, as well as hairier roots, compared to the wild-type plants. This suggests that Lsi1 plays a key role in rice, increasing the absorption and accumulation of Si, then alters antioxidant activities, and improves morphological properties.

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“…In this regard, multivariate statistical analysis is an important tool used to analyze the information that would be otherwise difficult to interpret. According to the collected data from this work, the multivariate analysis was the best statistical option to perform the analysis, as all the variables are interrelated with each other, and the information obtained is generated in groups and not individually (Alberto Moldes et al., 2013). In this context, the PC analysis revealed that the first two PCs are significant contributors to the total variation covering 79.6% of HT, LP, fiber quality, and meteorological data.…”

Section: Discussionmentioning

confidence: 99%

Delayed harvest time affects strength and color parameters in cotton fibers

et al. 2023

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Cotton (Gossypium hirsutum L.) is the most widely used natural fiber worldwide in the textile industry; thus, maintaining or even improving fiber quality is essential to produce the best quality yarn and uniform fabrics. Final fiber quality properties are determined not only by genotypes or environmental conditions during crop development but can also be affected by other postmaturity factors, such as harvesting and ginning methods, and harvest time (HT). The aim of this study is to associate the different environmental factors that affect specific lint quality traits produced by a delay in HT, also assessing cultivar effect. This field study included four cotton cultivars evaluated at seven different HTs (manual harvested) for different quality parameters. Results indicate that prolonged exposure of cotton fiber to the environment affects lint percentage (LP), strength (Str), reflectance (Rd), and yellowness (+b). Str showed a decrease of 0.02 g tex −1 day −1 from defoliant application, whereas LP, Rd, and +b presented different rates according to the season. No differences were obtained neither for length nor for fineness and maturity (micronaire) traits. In addition, the analysis of the results together with the climatic data recorded during the experiments indicated a negative correlation among Str, Rd, and +b with the number of rainy days, accumulated precipitation, and frost temperatures. Overall, this study establishes specific relationships between certain fiber characteristics and environmental conditions, being an important tool for crop management with regards to climate predictions that could help to make estimates of economic losses when the harvest is delayed.

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Assessment of the Effect of Silicon on Antioxidant Enzymes in Cotton Plants by Multivariate Analysis

Cited by 19 publications

References 46 publications

Aluminum stress tolerance in potato genotypes grown with silicon

Aluminum stress tolerance in potato genotypes grown with silicon

Screening and Expression of a Silicon Transporter Gene(Lsi1)in Wild-Type Indica Rice Cultivars

Delayed harvest time affects strength and color parameters in cotton fibers

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