UV-B Priming of Oryza sativa Seeds Augments the Innate Tolerance Potential in a Tolerant Variety more Effectively Toward NaCl and PEG Stressors

Sen, Akhila; Challabathula, Dinakar; Puthur, Jos T.

doi:10.1007/s00344-020-10177-2

Cited by 17 publications

(6 citation statements)

References 49 publications

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“…Tolerance of plant towards UV-B is response of antioxidative enzymes against ROS production and lipid peroxidation. Similar nding also reported in Oryza sativa plant species (Sen et al, 2021).…”

supporting

confidence: 89%

Impact assessment of relative effectiveness of Ascorbic acid, Salicylic acid and orange juice on soybean cultivar (Glycine Max. L.) under temperature acclimated UV radiation stress

Arsule,

Nigam,

Chaudhary

2023

Preprint

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Increasing composition of gaseous pollutant derived by anthropogenic activity disturbed natural atmospheric gaseous composition and deplete the stratospheric ozone layer. Major consequences of this depletion are increase incidents of harmful UV-B radiations reaching to terrestrial surface. Plants being permanent tool to removed harmful effect of solar radiation. Plants use sunlight as primary energy sources, therefore the small increase in UV-B radiation is recognized as harmful for plants. Many studies have shown that solar UV-B radiation causes significantly effect on morphological, physiological and yield components the plant. Therefore the present study conducted for assessment of relative effectiveness of Ascorbic acid, Salicylic acid and orange juice on soybean cultivar (Glycine Max. L.) under temperature acclimated UV radiation stress. Resultants ambient UV radiation caused harmful effect to soybean cultivar and reduce plant biomass 36% at juvenile stage and 40% at vegetative stage as compared to UV filter treatment. The effectiveness of Ascorbic acid, Salicylic acid and orange juice was following the trends 40%OJ > 20%OJ > 50ppm AA > 100ppm AA > 100ppm SA > 50ppm SA as compared to control plant. Based on obtained results orange juice and synthetic ascorbic acid will be useful tool for assessment of harmful effect of UV radiation on plants.

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supporting

confidence: 89%

Impact assessment of relative effectiveness of Ascorbic acid, Salicylic acid and orange juice on soybean cultivar (Glycine Max. L.) under temperature acclimated UV radiation stress

Arsule,

Nigam,

Chaudhary

2023

Preprint

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“…At low, ecologically relevant doses, UV-B radiation enhances the plant defences by increasing the production of secondary metabolites without determining an overproduction of reactive oxygen species (ROS) and/or lethal impairments in the photosynthetic apparatus [ 3 , 4 ]. In light of these positive effects of low UV-B doses, several studies have investigated the priming effect of UV-B exposure towards several abiotic stresses occurring afterwards [ 5 , 6 , 7 , 8 , 9 ]. However, UV-B radiation may also indirectly affect arbuscular mycorrhizal fungi (AMF) through morphological, physiological, and biochemical modifications of the host plants [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Zeni

Grassi

Santin

et al. 2022

Insects

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Arbuscular mycorrhizal fungi (AMF) and ultraviolet-B radiation (UV-B) play important roles in plant–insect interactions by altering plant physiology and histology. We hypothesized that UV-B-induced oxidative stress was mitigated by AMF symbiosis. In this study, we conducted a multifactorial experiment to explore lettuce plant response to AMF inoculation and UV-B exposure (0.4 W m−2; 16 h d−1; 2 weeks), either together or individually, as well as the interaction with the polyphagous insect pest Myzus persicae (Sulzer). Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density. Mycorrhizal colonization cancelled out the effect of UV-B on stomatal density, while the symbiosis was not affected by UV-B treatment. The plant volatile emission was significantly altered by UV-B treatment. Specifically, the non-terpene 1-undecene abundance (+M/+UVB: 48.0 ± 7.78%; −M/+UVB: 56.6 ± 14.90%) was increased, whereas the content of the non-terpene aldehydes decanal (+M/+UVB: 8.50 ± 3.90%; −M/+UVB: 8.0 ± 4.87%) and undecanal (+M/+UVB: 2.1 ± 0.65%; −M/+UVB: 1.20 ± 1.18%) and the sesquiterpene hydrocarbons (+M/+UVB: 18.0 ± 9.62 %; −M/+UVB: 19.2 ± 5.90%) was decreased. Mycorrhization, on the other hand, had no significant effect on the plant volatilome, regardless of UV-B treatment. Aphid population was unaffected by any of the treatments, implying a neutral plant response. Overall, this study provides new insights about the interactions among plants, UV-B, and AMF, outlining their limited impact on a polyphagous insect pest.

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“…According to Costa et al [29], UV-B radiation significantly boosted CAT activity in sunflower cotyledons seeds by 20% compared to the control. Moreover, UV-B radiation resulted in a CAT increase in rice seeds by 33-45% [78]. These findings suggested that CAT activity is crucial for controlling the amount of endogenous H 2 O 2 produced in response to abiotic stressors, such as UV-C.…”

Section: Antioxidant Enzymesmentioning

confidence: 86%

Influence of germicidal ultraviolet radiation UV-C on the quality of Apiaceae spices seeds

Kamel

Elkholy

Tolba

et al. 2022

Chem. Biol. Technol. Agric.

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Background Spices are susceptible to surface microbial contamination. Countries’ ban on ethylene oxide fumigation due to possible residual toxicity encouraged the usage of irradiation. Surface sterilization with low doses of ultraviolet radiation has been extensively researched as a safe, eco-friendly, and fast route. This study examines the quality of Apiaceae spices for consumption, including anise, fennel, caraway, and cumin, in response to germicidal ultraviolet radiation using a developed sterilization unit. Methods The influence of UV-C (254 nm, 10.5 mW/cm2) on the fungal and microbial count, germination percentage, respiration rate, phenolic content, essential oil, and the activity of antioxidant enzymes was investigated at exposure durations of 0–45 min in increments of 5 min. The treated seeds were packed in polyethylene bags in a naturally aerated storage room for 30 days before the inspection. Results The obtained data showed that UV-C stimulated seeds germination and increased respiration rate for all studied types. The 25 min of exposure exhibited the highest significant values compared to the control, considered a good indicator of seed vigor. In addition, UV-C exposure between 20 and 35 min promoted the accumulation of phenolic compounds and increased the oil content as a defense mechanism against radiation. Conversely, higher exposure to UV-C led to a significant reduction in phenolic and oil contents. Furthermore, the exposure to UV-C radiation enhanced the activity of antioxidant enzymes in terms of peroxidase and catalase, which progressively increased with increasing exposure durations, reached their peak at 25–30 min, and subsequently declined with extended exposure time was extended. In a similar pattern, exposure to UV-C radiation increased polyphenol oxidase activity to its highest level at 25 min, owing to the development of antioxidant protective mechanisms against oxidative stress. Conclusion UV-C irradiation in the range of 25–30 min is the most appropriate pretreatment to maintain the vitality of the examined seeds. Graphical Abstract

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UV-B Priming of Oryza sativa Seeds Augments the Innate Tolerance Potential in a Tolerant Variety more Effectively Toward NaCl and PEG Stressors

Cited by 17 publications

References 49 publications

Impact assessment of relative effectiveness of Ascorbic acid, Salicylic acid and orange juice on soybean cultivar (Glycine Max. L.) under temperature acclimated UV radiation stress

Impact assessment of relative effectiveness of Ascorbic acid, Salicylic acid and orange juice on soybean cultivar (Glycine Max. L.) under temperature acclimated UV radiation stress

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Influence of germicidal ultraviolet radiation UV-C on the quality of Apiaceae spices seeds

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