Effect of UV-B Radiation on Antioxidative Enzyme Activity in Cucumber Cotyledons

Rybus-Zając, Magdalena; Kubiś, Jan

doi:10.2478/v10182-010-0030-8

Cited by 11 publications

(7 citation statements)

References 44 publications

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“…Reduced photosynthesis, decreased protein synthesis and production of ROS species are among them [39][40][41][42][43][44]. However, there are other types of abiotic and biotic stresses that can also produce ROS, such as singlet oxygen, hydrogen peroxide, and hydroxyl radicals, in plants [41][42][43][44]. Plants have developed several defense systems against ROS-induced harmful effects.…”

Section: Resultsmentioning

confidence: 99%

Quercetin oxidation by horseradish peroxidase: The effect of UV-B irradiation

Savić

Stanojevic

Marković

et al. 2013

Hem Ind

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Horseradish peroxidase (HRP), a highly-investigated member of the peroxidase family has been known, among many other biological activities, to catalyze the oxidation of flavonoids and phenolic substrates overall, including quercetin. On the other hand, quercetin is very well known for its antioxidant activities, which in the case of UV external radiation is exibited partly in a preventive manner since it is an excellent UV-absorber. Therefore the aim of this investigation is to study quercetin oxidation by HRP in phosphate buffer under the conditions of UV-stress, i.e. continuous, prolonged UV-B irradiation. The results show that while UV-B irradiation affects the activity of HRP, and the overal rate of quercetin oxidation by HRP, it probably has very little effect on it for longer UV-B-irradiation periods (>30 min). [Acknowledgements. This work was supported by the Ministry of Education and Science of the Republic of Serbia under Project No.TR-34012 and OI-172044

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Section: Resultsmentioning

confidence: 99%

Quercetin oxidation by horseradish peroxidase: The effect of UV-B irradiation

Savić

Stanojevic

Marković

et al. 2013

Hem Ind

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“…Light stimulates lignin biosynthesis by inducing the polymerization of coniferyl‐alcohol, which reacts with short‐wavelength UV light into a polymer‐like lignin . Lignin biosynthesis is also activated by some peroxidase/laccase enzymes, which respond to the reactive oxygen species generated by UV light exposure . Nutrient availability, such as a Fe deficiency condition, increases the root lignification via reactive oxygen species induction .…”

Section: Introductionmentioning

confidence: 99%

Wheat straw, corn stover, sugarcane, and Agave biomasses: chemical properties, availability, and cellulosic‐bioethanol production potential in Mexico

Hernández

Escamilla‐Alvarado

Sánchez

et al. 2019

Biofuels Bioprod Bioref

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Mexico is one of the largest agricultural producers in Latin America and generates a large amount of agricultural residue. The aim of this study was to establish the usefulness of four of the main Mexican crops (corn, wheat, sugarcane, and Agave) as feedstock for lignocellulosic bioethanol production. The lignocellulosic residue ratio (RR), defined as weight of residue (in tons) per ton of product, was measured by sampling crop fields in 11 geographic regions of Mexico. The chemical composition, assessed by Fourier-transform infrared spectroscopy (FTIR) and carbon-13 nuclear magnetic resonance ( 13 C NMR), and structural composition (extractives, cellulose, hemicellulose, and lignin contents), heating value, and metal content of these lignocellulosic residues were measured. Biorefinery locations, and their theoretical bioethanol production, were suggested using the gravity center method and techno-economic criteria. The highest RR (1.1 ton of straw per ton of grain) was obtained for wheat straw followed by corn 1144

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“…Ultraviolet-B (UV-B) radiation negatively affects plant cells, causing generation of ROS such as superoxide anions (O 2 -), hydrogen peroxide (H 2 O 2 ), hydroxyl radicals (OH) and singlet oxygen (O 2 ) (Beckmann et al, 2012;Lizana et al, 2009;Rybus-Zaj¹c and Kubioe, 2010;Zancan et al, 2008). Fang et al (2011), Li et al (2007 and have reported that Si increases plant tolerance to UV-B radiation.…”

Section: Uv Radiationmentioning

confidence: 99%

Effects of silicon on plant resistance to environmental stresses: review

Balakhnina¹,

Borkowska²

2013

International Agrophysics

106

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A b s t r a c t. The role of exogenous silicon in enhancing plant resistance to various abiotic stressors: salinity, drought, metal toxicities and ultraviolet radiation are presented. The data on possible involvement of silicon in reducing the reactive oxygen species generation, intensity of lipid peroxidation, and in some cases, increasing the activity of enzymes of the reactive oxygen species detoxificators: superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase and catalase are analyzed.K e y w o r d s: plant resistance, stress conditions, silicon, antioxidant enzymes EFFECT OF SOIL STRESSES ON PLANTSPlant growth and development is closely related to soil physical processes and properties (Gliñski, 2011;Gliñski et al., 2011). These are mass transport (water, vapour, air, and chemical flow, capillary flow, molecular diffusion, osmosis), mass absorption/desorption, energy transport (heat conduction, convection, radiation), energy adsorption/emission, phase transition (evaporation, condensation, crystallization, melting), mechanical processes (impact, compression, crushing, shearing, tension). Soil conditions based on the enumerated physical factors may create stresses for plant growth and development.Suitability of the environment for normal plant development is determined by the pool of oxygen stored in the soil and by the ability of its continuous supply from the atmosphere. After exhausting of the soil oxygen pool, and without further oxygen supply, plants start to suffer from oxygen stress; the root system perishes, and finally, the whole plant dies (Gliñski et al., 2004). Soil oxygen is one of the most important factors, which even during a short period can severely limit plant development and nutrient uptake, thereby resulting in a significant reduction of yields (Gliñski and Stêpniewski, 1985). Soil aeration is closely connected with the relations of air-water conditions in soils. Imbalance in these relations, for example, by flooding the soil, changes the chemical and physical soil properties, affects the biological activity of soil microorganisms and, consequently, leads to oxygen stress (Gliñski and Stêpniewski, 1985). These relations affect the biological activity of soil organisms, mainly microorganisms which are very sensitive to oxidation or reduction processes (Gliñski and Stêpniewski, 1985). It is expected that oxygen stress depends on various abiotic (soil flooding, drought, soil compaction, salinity, high temperature or a combination of these stresses) and biotic factors. Oxygen deficiency affects the intensity and the direction of a number of physiological and biochemical reactions and induces oxidative stress in the plant cells (Balakhnina et al., 2004). Salt stress is one of the major environmental factors that restrict plant growth and productivity worldwide. Salt causes both ionic as well as osmotic stress on plants (Hejazi Mehrizi et al., 2011;Parvaiz and Satyawati, 2008). A high concentration of Na + causes deficiency in other nutrients in the soil and in...

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Effect of UV-B Radiation on Antioxidative Enzyme Activity in Cucumber Cotyledons

Cited by 11 publications

References 44 publications

Quercetin oxidation by horseradish peroxidase: The effect of UV-B irradiation

Quercetin oxidation by horseradish peroxidase: The effect of UV-B irradiation

Wheat straw, corn stover, sugarcane, and Agave biomasses: chemical properties, availability, and cellulosic‐bioethanol production potential in Mexico

Effects of silicon on plant resistance to environmental stresses: review

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