Ozone depletion and increased UV-B radiation: is there a real threat to photosynthesis?

Allen, D. M.; Nogués, Salvador; Baker, Neil R.

doi:10.1093/jxb/49.328.1775

Cited by 158 publications

(163 citation statements)

References 96 publications

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“…Leaves of both T. panamensis and C. longifolium that had developed under near-ambient UV-B conditions were adequately protected against damaging effects of high solar UV-B, consistent with studies in which acclimated plants had been irradiated with supplemental UV-B (Allen et al, 1998;Searles et al, 2001). Between seedlings grown under strongly reduced UV-B and nearambient UV-B, there were no significant differences in maximum rates and degree of 'mid-day depression' of C0 2 assimilation (Table 3), in potential PSII efficiency (Fig.…”

Section: Discussionsupporting

confidence: 80%

“…UV-B effects on plants vary among these studies in part because of species differences and in part due to differences in experimental conditions (Kakani et al, 2003). Nevertheless, it is clear that terrestrial plants have a broad capacity to tolerate relatively high levels of UV-B light (Allen et al, 1998). UV-absorbing compounds such as flavonoids and hydroxycinnamic acids are thought to be essential for UV protection (Burchard et al, 2000;Caldwell et al, 1983;Cockell and Knowland, 1999;Kolb et at., 2001;Mazza et al, 2000;Reuber et al, 1993).…”

Section: Tmentioning

confidence: 99%

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Photoprotection, photosynthesis and growth of tropical tree seedlings under near-ambient and strongly reduced solar ultraviolet-B radiation

Krause

Jahns

Virgo

et al. 2007

Journal of Plant Physiology

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Section: Discussionsupporting

confidence: 80%

Section: Tmentioning

confidence: 99%

Photoprotection, photosynthesis and growth of tropical tree seedlings under near-ambient and strongly reduced solar ultraviolet-B radiation

Krause

Jahns

Virgo

et al. 2007

Journal of Plant Physiology

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“…Some authors report that UV radiation affects plant secondary metabolism by restricting the production of UV-absorbing compounds including flavonoids and other phenolics (Allen et al, 1998;Caldwell et al, 2003). These compounds significantly affect fruit composition and therefore fruit nutritional quality.…”

Section: Introductionmentioning

confidence: 99%

Effects of a UV-absorbing greenhouse covering film on tomato yield and quality

Papaioannou

Katsoulas

Maletsika

et al. 2012

Span. j. agric. res.

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The effect of blocking the ultraviolet (UV) solar radiation using a UV-absorbing low density polyethylene (PE) film on tomato crop yield and fruit quality was evaluated in a two-year study in two arched roof greenhouses located in Central Greece. The UV-A and UV-B radiation transmission values of the greenhouse covered by the UVabsorbing PE film during the first year were 0.4% and 1.2%, respectively and increased to 0.8% and 1.3% in the 2 nd year, while the respective values in the greenhouse covered by a traditional PE film were 20.7% and 12.5% during the 1 st year and 28.7% and 26.7% during the 2 nd year. Under the UV-absorbing film the number of insect injured fruit was reduced and the marketable yield was similar or higher than that under the common PE film, while fruit quality characteristics (size, shape), nutritional value (ascorbic acid and lycopene) and organoleptic quality (pH, titratable acidity and total soluble solids) were similar under both covering materials. Moreover, the reduction of incoming UV radiation had an appreciable effect on fruit skin color, indicating an effect on pigments other than lycopene.Additional key words: fruit quality; insects; polyethylene; transmission; ultraviolet radiation; UV-stabilizers. ResumenEfectos sobre el rendimiento y la calidad del tomate de un film de cubierta de invernaderos absorbente de UV Se evaluó, en un estudio de dos años, en dos invernaderos a dos aguas ubicados en Grecia Central, el efecto del bloqueo de la radiación ultravioleta (UV) solar, utilizando un film absorbente de polietileno (PE) de baja densidad absorbente de UV, sobre el rendimiento del cultivo del tomate y la calidad del fruto. Los valores de transmisión de la radiación UV-A y UV-B del invernadero cubierto por el film PE absorbente de UV en el primer año fueron 0,4% y 1,2%, respectivamente, y se incrementaron hasta el 0,8% y el 1,3% en el segundo año. Estos valores en el invernadero cubierto por una película tradicional de PE fueron 20,7% y 12,5%, respectivamente, durante el 1 er año y 28,7% y 26,7% durante el segundo año. Bajo la película absorbente de UV se redujo el nú-mero de frutos con heridas producidas por insectos y el rendimiento comercializable fue similar o mayor que bajo la película de PE tradicional, mientras que las características de calidad del fruto (tamaño, forma), el valor nutricional (ácido ascórbico y licopeno) y la calidad organoléptica (pH, acidez titulable y sólidos solubles totales) fueron similares con ambos materiales de revestimiento. Por otra parte, la reducción de la radiación UV entrante tuvo un efecto apreciable en el color de la piel de fruta, lo que indica un efecto sobre otros pigmentos distintos del licopeno.Palabras clave adicionales: calidad de la

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“…Commonly observed UV-B effects on plants include physiological damage to the photosynthetic apparatus, damage to DNA, and changes in the protein content and leaf chemistry (Jansen et al, 1998). Morphological changes have been observed as plant stunting, and as leaf discoloration and reductions (Allen et al, 1998). These changes ultimately lead to decreased biomass production and grain yield (Li et al, 1998;Kakani et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of ultraviolet-B radiation on crop growth, development, yield and leaf pigment concentration of tartary buckwheat (Fagopyrum tataricum) under field conditions

Yao

Xuan

et al. 2006

European Journal of Agronomy

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Ozone depletion and increased UV-B radiation: is there a real threat to photosynthesis?

Cited by 158 publications

References 96 publications

Photoprotection, photosynthesis and growth of tropical tree seedlings under near-ambient and strongly reduced solar ultraviolet-B radiation

Photoprotection, photosynthesis and growth of tropical tree seedlings under near-ambient and strongly reduced solar ultraviolet-B radiation

Effects of a UV-absorbing greenhouse covering film on tomato yield and quality

Effects of ultraviolet-B radiation on crop growth, development, yield and leaf pigment concentration of tartary buckwheat (Fagopyrum tataricum) under field conditions

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