Ultraviolet-B radiation in relation to agriculture in the context of climate change: a review

Liaqat, Waqas; Altaf, Muhammad Tanveer; Barutçular, Celaleddin; Nawaz, Hira; Ullah, Izhar; Basıt, Abdul; Mohamed, Heba I.

doi:10.1007/s42976-023-00375-5

Cited by 6 publications

(4 citation statements)

References 248 publications

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“…Ultraviolet‐B radiation has been identified as a major stressor on the growth and yield of cereal crops (Liaqat et al. 2024) and exposure to near‐ambient levels of UV‐B had a significant impact on S. bicolor in our experiment. Specifically, plants were 23% shorter (Figure 2; Table 1) when grown under near ambient UV‐B.…”

Section: Discussionmentioning

confidence: 59%

“…Deleterious UV‐B effects have been observed in wheat, maize and rice and are typically associated with reductions in photosynthesis and/or changes in canopy architecture resulting from alterations in cellular division or elongation rates (reviewed in Liaqat et al. 2024). For example, exposure to elevated levels of UV‐B can accelerate leaf senescence in maize (Correia et al.…”

Section: Introductionmentioning

confidence: 99%

“…have been observed in wheat, maize and rice and are typically associated with reductions in photosynthesis and/or changes in canopy architecture resulting from alterations in cellular division or elongation rates (reviewed in Liaqat et al 2024). For example, exposure to elevated levels of UV-B can accelerate leaf senescence in maize (Correia et al 2005), reduce stem elongation and leaf area (Reddy et al 2013), starch, sugar and protein content (Gao et al 2004), as well as reduce seed number and weight (Yin and Wang 2012).…”

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confidence: 99%

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Ultraviolet‐B Stress Increases Epidermal UV‐Screening Effectiveness and Alters Growth and Cell‐Wall Constituents of the Brown Midrib bmr6 and bmr12 Mutants of Sorghum bicolor

Olson,

Ruhland

2024

J Agronomy Crop Science

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The brown midrib bmr6 and bmr12 mutants of sorghum (Sorghum bicolor) have alterations to the phenylpropanoid pathway impairing the activity of cinnamyl alcohol dehydrogenase (CAD) and/or caffeate5/hydroxyferulate O‐methyl transferase (COMT) enzymes, which inhibit lignin synthesis. Interestingly, these phenylpropanoids can also act as sunscreen compounds in plants and potentially attenuate ultraviolet radiation. We examined the effects of ultraviolet‐B (UV‐B; 280–320 nm) exclusion on growth, cell‐wall constituents and UV‐screening abilities of bmr6, bmr12, a double mutant (bmr6 bmr12; dm) and wild‐type (WT) genotypes of S. bicolor. Plants were grown in a UV‐transparent greenhouse under filters that either transmitted 2.8% (Mylar) or 90% (Aclar) of UV‐B. The greenhouse experiment was a 2 × 4 (UV treatment × genotype) complete factorial design. Sorghum grown under reduced UV were 23% taller and had 22% fewer leaves. Among genotypes, the WT plants were 5%–12% taller than the bmr6, bmr12 and dm mutants. The near‐ambient UV‐B treatment group was more effective at UV screening and had a 16% higher UV‐screening effectiveness than those under reduced UV‐B. Sorghum plants with the bmr6 and dm genotypes had 8%–19% higher UV‐shield than the bmr12 and WT. Plants grown under the reduced UV‐B treatment had 5% less hemicellulose and 6% more cellulose in their cell walls. There were no overall treatment effects on bulk soluble phenolics, chlorophyll fluorescence (Fv/Fm) or lignin concentrations. These results are a possible indication that the bmr mutants of S. bicolor have a varied response to UV‐B exclusion due to alterations in the phenylpropanoid pathway leading to redistribution of metabolites.

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Section: Discussionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Ultraviolet‐B Stress Increases Epidermal UV‐Screening Effectiveness and Alters Growth and Cell‐Wall Constituents of the Brown Midrib bmr6 and bmr12 Mutants of Sorghum bicolor

Olson,

Ruhland

2024

J Agronomy Crop Science

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“…Human activity and increased industrialisation have weakened the stratospheric ozone layer, which provides protection against ultraviolet (UV) radiation [1]. The Earth is currently exposed to increased level of UV radiation because of pollution.…”

Section: Introductionmentioning

confidence: 99%

Changes in Amino Acid Accumulation and Nitrogen, Phosphorus, and Potassium Concentrations in Leaves of Date Palm (Phoenix dactylifera L.) Seedlings Exposed to UV Light Stress

Swaid,

Ali

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Human activities have resulted in air pollution, which has reduced the ozone layer. The increased exposure of the Earth’s surface to the harmful ultraviolet B (UV-B) radiation has affected plants, such as date palm, retarding their growth, productivity and photosynthesis. This study aimed to determine how UV-B radiation influences changes in amino acid and nutrients N, P, and K (NPK) content in date palm leaves. Amino acids in germinated seeds subjected to various UV-B doses were quantified, and NPK analysis was performed. Results demonstrated the considerable effects of UV-B radiation on these parameters. Prolonged exposure to UV-B radiation resulted in high amino acid levels, which peaked at 8, 10 h of exposure, and the lowest values were observed after control treatment. The peak in N concentration was recorded after 4 h of exposure and declined at after 8,10 h of exposure. The levels of P increased after 2,4 h of irradiation and decreased after 6, 8 h. By contrast, K content greatly increased after 4 h of UV irradiation and slightly increased after 6,10 h of irradiation. Overall, the amino acid content of the date palm seedlings increased after 6,8 h of exposure to UV-B rays, and NPK levels initially increased after 2, 4 h of UV-B irradiation but decreased after 6,10 h of UV-B irradiation.

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Plant defense mechanisms against ozone stress: Insights from secondary metabolism

Guo,

Wang,

Wang

et al. 2024

Environmental and Experimental Botany

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Ultraviolet-B radiation in relation to agriculture in the context of climate change: a review

Cited by 6 publications

References 248 publications

Ultraviolet‐B Stress Increases Epidermal UV‐Screening Effectiveness and Alters Growth and Cell‐Wall Constituents of the Brown Midrib bmr6 and bmr12 Mutants of Sorghum bicolor

Ultraviolet‐B Stress Increases Epidermal UV‐Screening Effectiveness and Alters Growth and Cell‐Wall Constituents of the Brown Midrib bmr6 and bmr12 Mutants of Sorghum bicolor

Changes in Amino Acid Accumulation and Nitrogen, Phosphorus, and Potassium Concentrations in Leaves of Date Palm (Phoenix dactylifera L.) Seedlings Exposed to UV Light Stress

Plant defense mechanisms against ozone stress: Insights from secondary metabolism

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