Effects of low UV-B doses on the accumulation of UV-B absorbing compounds and total phenolics and carbohydrate metabolism in the peel of harvested lemons

Interdonato, Roque; Rosa, Mariana; Nieva, C.; González, Juan Antonio Suarez; Hilal, Mirna; Prado, Fernando Eduardo

doi:10.1016/j.envexpbot.2010.09.006

Cited by 58 publications

(35 citation statements)

References 60 publications

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“…This leads to the accumulation of flavonoid substances (Interdonato et al, 2011;Sun et al, 2011). Consistent with previous studies, postharvest UV-C irradiation increased the total flavonoid content in V. vinifera L. cv.…”

Section: Discussionsupporting

confidence: 79%

“…UV-C irradiation induces polyphenol accumulation in many fruits, such as grape (Pan et al, 2009;Wang et al, 2010), apple , pear (Kataoka and Beppu, 2004), strawberry (Higashio et al, 2005), and lemon (Interdonato et al, 2011). This leads to the accumulation of flavonoid substances (Interdonato et al, 2011;Sun et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Numerous studies have reported that ultraviolet (UV) irradiation induces the accumulation of polyphenols Guerrero et al, 2010;Interdonato et al, 2011;Sergio et al, 2012;Zhang et al, 2012). Furthermore, Liu et al (2010) showed that UV-C irradiation for 20 min was most efficient for promoting the accumulation of resveratrols and accumulation of stilbenes in UV-C-irradiated calli depended upon the genetic background and tissue type, with higher stilbene content in 2 interspecific root stocks and leaf or exocarp explants.…”

Section: Introductionmentioning

confidence: 99%

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Accumulation of flavanols and expression of leucoanthocyanidin reductase induced by postharvest UV-C irradiation in grape berry

Wen

Gao

et al. 2015

Genet. Mol. Res.

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ABSTRACT.To examine the effect of postharvest ultraviolet C (UV-C) irradiation on flavanol polyphenol accumulation in the grape berry, we investigated total flavanol polyphenol content, the enzyme activity of leucoanthocyanidin reductase (LAR), and transcription of Vv lar1 and Vv lar2 using spectrophotometry, real-time polymerase chain reaction, and western blot analysis in 5-year-old Vitis vinifera L. cv. Cabernet Sauvignon plants. Our results indicated that the accumulation of flavanol polyphenol reached its highest value when exposed to UV-C irradiation for 30 min. Additionally, UV-C irradiation induced the transcription of Vv lar1 and Vv lar2 and the synthesis of LAR1 and LAR2 proteins, resulting in increased accumulation of flavanol polyphenol in the grape berry. Moreover, these effects were associated with the length of time of UV-C irradiation.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accumulation of flavanols and expression of leucoanthocyanidin reductase induced by postharvest UV-C irradiation in grape berry

Wen

Gao

et al. 2015

Genet. Mol. Res.

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“…Among these environmental factors, light plays a particularly important role in the successful completion of a plant's life cycle. Ultraviolet wavelengths greater than 280 nm are a ubiquitous component of the solar radiation, but their levels vary considerably in the biosphere both spatially and temporally (Interdonato et al, 2011). However, in recent years, ultraviolet-B (UV-B, 280 to 320 nm) radiation has increased more than ever before.…”

Section: Introductionmentioning

confidence: 99%

Identification of UV-B-induced microRNAs in wheat

Wang¹,

Sun²,

Song³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. MicroRNAs (miRNAs) play critical roles in posttranscriptional gene regulation and act as important endogenous regulators to various stressors. Ultraviolet-B (UV-B) radiation is a major factor influencing crop growth and development. In this study, we isolated a novel wheat miRNA, named Tae-miR6000, and confirmed its expression diversity after UV-B treatments. Additionally, using the Northern blotting technique, we found that six miRNAs were highly responsive to UV-B stress in wheat. Of these six miRNAs, miR159, miR167a, and miR171 were significantly upregulated, and the remaining three miRNAs were downregulated, at different time points after UV-B treatment. This result indicates that miRNAs may be involved in the regulation of targets after induction by UV-B stress. Furthermore, promoter analysis of the UV-B-responsive miRNA genes revealed some light-relevant cis-elements, such as the I-box and G-box. Taken together, the results of this study suggest that wheat miRNAs play important roles in the response to UV-B stress.

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“…Ultraviolet wavelengths greater than 280 nm (UV-B radiation) are an ubiquitous component of the solar radiation, but their levels considerably vary in the biosphere spatially and temporally [3]. UV-B causes damage to DNA, proteins and membranes, impedes photosynthetic activities, and disturbes plant growth [4].…”

Section: Introductionmentioning

confidence: 99%

Low UV-B radiation and substrate acidity impact on photosynthetic parameters of Brassica napus

Januškaitienė¹

2013

Biologija

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The aim of this study was to assess combined effect of 1 kJm -2 d -1UV-B radiation and substrate acidity (pH 4.8) on photosynthesis and growth of summer rape (Brassica napus) in a controlled environment. Rape were sown in a neutral (pH 6.0-6.5) peat substrate, when 2nd true leaf unfolded, growth substrate was acidified using 0.07 mM H 2 SO 4 concentration solution and UV-B radiation exposure was started. Duration of the experiment: five days. Gas exchange parameters were measured with portable photosynthesis system LI-6400. Content of chlorophyll was evaluated spectrophotometrically. The results showed that the highest inhibition on Brassica napus growth and photosynthetic parameters was under combined effect of 1 kJm -2 d -1 UV-B radiation and pH 4.8 substrate acidity. The impact of single 1 kJm -2 d -1 UV-B radiation on investigated parameters was low and statistically insignificant, except transpiration rate and water use efficiency. Single substrate acidity affected in 58.6% (p < 0.05) decrease in photosynthetic rate, almost twofold decrease of transpiration rate, and 3.8% (p < 0.05) decrease in intercellular CO 2 concentration, and 27.1% (p < 0.05) increase in water use efficiency, compared to the reference treatment. Combined substrate acidity and UV-B radiation effect on photosynthetic rate was the highest, when the decrease was 80.6% (p < 0.05), compared to the reference treatment. The changes of transpiration rate under combined effect of investigated stressors compared to the reference treatment were insignificant (p > 0.05). The increase (by 2%, p < 0.05) of intercellular CO 2 concentration of Brassica napus affected by combined impact of investigated stressors shows that higher negative impact was on enzymatic reactions of photosynthesis than on transpiration. The highest negative effect on content of photosynthetic pigments and biomass accumulation also was of combined effect of investigated stressors.

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Effects of low UV-B doses on the accumulation of UV-B absorbing compounds and total phenolics and carbohydrate metabolism in the peel of harvested lemons

Cited by 58 publications

References 60 publications

Accumulation of flavanols and expression of leucoanthocyanidin reductase induced by postharvest UV-C irradiation in grape berry

Accumulation of flavanols and expression of leucoanthocyanidin reductase induced by postharvest UV-C irradiation in grape berry

Identification of UV-B-induced microRNAs in wheat

Low UV-B radiation and substrate acidity impact on photosynthetic parameters of Brassica napus

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