Enhanced UV<sub>A+B</sub>induced oxidative damage and antioxidant defence system in<i>Glycine max</i>L. cultivars

Abdel-Kader, D. Z.; Saleh, Amal; Abu-Elsaoud, Abdelghafar M.

doi:10.1556/abot.49.2007.3-4.2

Cited by 3 publications

(1 citation statement)

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“…2 a, b, c, and d). The decrement in pigment contents under UV rays significantly induces photosynthetic capacity inhibition of chloroplasts (Abdel-Kader et al 2007 ; Amal et al 2006 ; Kakani et al 2004 ; Khan et al 2017 ). Singh et al ( 2019 ) reported that UV radiation-mediated decrements in Chl pigment contents, photosynthesis-evolving activity, enzyme activity, and PS II photochemistry were the major causes of retardation in the growth characters, as has been reported by the present work.…”

Section: Discussionmentioning

confidence: 99%

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Abu-Elsaoud

Sofy

Mohamed

et al. 2022

Environ Sci Pollut Res

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Increasing ultraviolet (UV) radiation is causing oxidative stress that accounts for growth and yield losses in the present era of climate change. Plant hormones are useful tools for minimizing UV-induced oxidative stress in plants, but their putative roles in protecting tomato development under UVC remain unknown. Therefore, we investigated the underlying mechanism of pre-and post-kinetin (Kn) treatments on tomato plants under UVC stress. The best dose of Kn was screened in the preliminary experiments, and this dose was tested in further experiments. UVC significantly decreases growth traits, photosynthetic pigments, protein content, and primary metabolites (proteins, carbohydrates, amino acids) but increases oxidative stress biomarkers (lipid peroxidation, lipoxygenase activity, superoxide anion, hydroxyl radical, and hydrogen peroxide) and proline content. Treatment of pre-and post-kinetin spraying to tomato plants decreases UVC-induced oxidative stress by restoring the primary and secondary metabolites’ (phenolic compounds, flavonoids, and anthocyanins) status and upregulating the antioxidant defense systems (non-enzymatic antioxidants as ascorbate, reduced glutathione, α-tocopherol as well as enzymatic antioxidants as superoxide dismutase, catalase, ascorbate peroxidase, glutathione peroxidase, glutathione-S-transferase, and phenylalanine ammonia-lyase). Thus, the application of Kn in optimum doses and through different modes can be used to alleviate UVC-induced negative impacts in tomato plants. Graphical abstract

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Section: Discussionmentioning

confidence: 99%

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Abu-Elsaoud

Sofy

Mohamed

et al. 2022

Environ Sci Pollut Res

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show abstract

Tomato plants use non-enzymatic antioxidant pathways to cope with moderate UV-A/B irradiation: A contribution to the use of UV-A/B in horticulture

Mariz-Ponte

Mendes

Sario

et al. 2018

Journal of Plant Physiology

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Moderate UV-A supplementation benefits tomato seed and seedling invigoration: a contribution to the use of UV in seed technology

Mariz-Ponte

Mendes

Sario

et al. 2018

Scientia Horticulturae

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Enhanced UV_A+Binduced oxidative damage and antioxidant defence system inGlycine maxL. cultivars

Cited by 3 publications

References 0 publications

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Tomato plants use non-enzymatic antioxidant pathways to cope with moderate UV-A/B irradiation: A contribution to the use of UV-A/B in horticulture

Moderate UV-A supplementation benefits tomato seed and seedling invigoration: a contribution to the use of UV in seed technology

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Enhanced UVA+Binduced oxidative damage and antioxidant defence system inGlycine maxL. cultivars

Cited by 3 publications

References 0 publications

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Appraisal of kinetin spraying strategy to alleviate the harmful effects of UVC stress on tomato plants

Tomato plants use non-enzymatic antioxidant pathways to cope with moderate UV-A/B irradiation: A contribution to the use of UV-A/B in horticulture

Moderate UV-A supplementation benefits tomato seed and seedling invigoration: a contribution to the use of UV in seed technology

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Enhanced UV_A+Binduced oxidative damage and antioxidant defence system inGlycine maxL. cultivars