The impact of elevated UV-B (280–320 nm) radiation levels on the reproduction biology of a highland and a lowland population of Silene vulgaris

Staaij, J.W.M. van de; Bolink, Esther; Rozema, J.; Ernst, W. H. O.

doi:10.1007/978-94-011-5718-6_16

Cited by 27 publications

(31 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11). The seed production for reduced, ambient and enhanced UV-B was 33, 19 and 13 seeds per plant, respectively, the average weight of the single seed being 0.88, 0.45 and 0.32 g. The experiments with lowland and highland population of Silene vulgaris reveals a decrease of seed number in the former and an increase in the latter [32]. The impact of enhanced UV-B radiation on seed production of soybean, rice, pea and mustard were reviewed by Calldwell and coworkers [13].…”

Section: Resultsmentioning

confidence: 88%

Growth and production of buckwheat (Fagopyrum esculentum) treated with reduced, ambient, and enhanced UV-B radiation

Gaberščik

Vončina

Trošt

et al. 2002

Journal of Photochemistry and Photobiology B: Biology

View full text Add to dashboard Cite

The effect of enhanced UV-B radiation on buckwheat (Fagopyrum esculentum Moench. variety 'Darja'), an important high elevation crop, was studied in order to estimate its vulnerability in changing UV-B environment. Plants were grown in outdoor experiments from July to October under reduced and ambient UV-B levels, and an UV-B level simulating 17% ozone depletion in Ljubljana. During the development the following parameters were monitored: light saturated photosynthetic activity, transpiration, potential and effective photochemical efficiencies of photosystem II, the contents of photosynthetic pigments and methanol soluble UV-B absorbing compounds. At the end of the experiment, growth rate and production of seeds were estimated. In the following growth season the seeds collected from plants exposed to different UV-B treatments were tested for germination capacity. Total UV-B absorbing compounds during plant development were increased by UV-B radiation, photosynthetic pigments (chlorophyll a and b and carotenoids) decreased. Photosynthetic rate was lowered in an early stage of development. UV-B treatment resulted in the increase in the transpiration rate and consequently the decrease in water use efficiency (WUE). The disturbances in water economy and in photosynthesis affected the reproduction potential negatively; the production of seeds in plants cultivated under ambient and enhanced UV-B was 57 and 39% of the production of specimens treated with reduced UV-B, respectively. The germination of seeds collected from treated plants revealed on average about 95% success, independently of the treatment, but the time needed for germination was the shortest for seeds developed under enhanced UV-B level treatment. Enhanced UV-B radiation affected water relations and production of buckwheat, but not the potential of seeds for germination.

show abstract

Section: Resultsmentioning

confidence: 88%

Growth and production of buckwheat (Fagopyrum esculentum) treated with reduced, ambient, and enhanced UV-B radiation

Gaberščik

Vončina

Trošt

et al. 2002

Journal of Photochemistry and Photobiology B: Biology

View full text Add to dashboard Cite

show abstract

“…Graae et al (2011) suggest that V. myrtillus seeds already germinate effectively under natural conditions and data herein suggest that UV-B exposure of the parent could further promote germination success. Positive effects of UV-B on reproductive output have already been reported in the literature including increased berry production of sub-arctic heath vegetation (Gwynn-Jones et al 1997;Phoenix et al 2001); positive effects on seed production in a Mediterranean shrub species (Stephanou and Manetas 1998); promotion of reproductive development with ambient UV in two Antarctic vascular plant species (Day et al 1999(Day et al , 2001; positive effects of UV on seed production and germination of an European alpine forb (van de Staaij et al 1997). The mechanisms responsible for this wide range of positive reproductive responses to UV-B are unclear.…”

Section: Seed Germination Responses To Uv-bmentioning

confidence: 86%

“…UV-B alone has been studied in the context of seed production and viability (van de Staaij et al 1997;Wang et al 2008;Lake et al 2009) and also as a potential tool to manipulate or beneficially enhance the secondary metabolite chemistry of fruit and vegetables (see review by Jansen et al 2008). For example, research has been conducted on UV-B impacts on grape berries due to commercial interest in fruit characteristics and resultant wine quality.…”

Section: Introductionmentioning

confidence: 99%

Enhanced UV-B and Elevated CO2 Impacts Sub-Arctic Shrub Berry Abundance, Quality and Seed Germination

Gwynn‐Jones

Jones

Waterhouse

et al. 2012

AMBIO

View full text Add to dashboard Cite

This study investigated the effects of longterm-enhanced UV-B, and combined UV-B with elevated CO 2 on dwarf shrub berry characteristics in a sub-arctic heath community. Germination of Vaccinium myrtillus was enhanced in seeds produced at elevated UV-B, but seed numbers and berry size were unaffected. Elevated UV-B and CO 2 stimulated the abundance of V. myrtillus berries, whilst UV-B alone stimulated the berry abundance of V. vitis-idaea and Empetrum hermaphroditum. Enhanced UV-B reduced concentrations of several polyphenolics in V. myrtillus berries, whilst elevated CO 2 increased quercetin glycosides in V. myrtillus, and syringetin glycosides and anthocyanins in E. hermaphroditum berries. UV-B 9 CO 2 interactions were found for total anthocyanins, delphinidin-3-hexoside and peonidin-3-pentosidein in V. myrtillus berries but not E. hermaphroditum. Results suggest positive impacts of UV-B on the germination of V. myrtillus and species-specific impacts of UV-B 9 elevated CO 2 on berry abundance and quality. The findings have relevance and implications for human and animal consumers plus seed dispersal and seedling establishment.

show abstract

“…Therefore, the UV-B radiation (280-320 nm) at the earth's surface has been significantly increased by the ozone depletion in the stratosphere, resulting in widespread attention in recent years (Caldwell et al 1995). Exposure to enhanced UV-B is potentially detrimental to all above-ground parts of higher plants, including reproductive organs (Demchik and Day 1996;Van de Staaij et al 1997;Torabinejad et al 1998;Feng et al 2000). Pollens of open flowers appear to be well shielded from solar UV-B when still within the anther sacs (Flint and Caldwell 1983), but they may be exposed to natural UV-B radiation following dehiscence until successful germination and stigma penetration occur.…”

Section: Introductionmentioning

confidence: 99%

The involvement of hydrogen peroxide in UV-B-inhibited pollen germination and tube growth of Paeonia suffruticosa and Paulownia tomentosa in vitro

Liu

et al. 2006

Plant Growth Regul

View full text Add to dashboard Cite

Previous studies have shown that UV-B could affect pollen germination and tube growth. However, the mechanism of response of pollen to UV-B has not been clear. The purpose of this study was to investigate the role of hydrogen peroxide (H 2 O 2 ) in the UV-B-induced reduction of in vitro pollen germination and tube growth of Paeonia suffruticosa Andr. and Paulownia tomentosa Steud. Exposure of pollen of the two species to 0.4 and 0.8 W m -2 UV-B radiation for 3 h resulted in not only the reduction of pollen germination and tube growth, but also the H 2 O 2 production in pollen grain and tube. Also, exogenous H 2 O 2 inhibited pollen germination and tube growth of the two species in a dose-dependence manner. Two scavengers of H 2 O 2 , ascorbic acid and catalase, largely prevented not only the H 2 O 2 generation, but also the reduction of pollen germination and tube growth induced by UV-B radiation in the two species. These results indicate that H 2 O 2 is involved in the UV-B-inhibited pollen germination and tube growth.

show abstract

The impact of elevated UV-B (280–320 nm) radiation levels on the reproduction biology of a highland and a lowland population of Silene vulgaris

Cited by 27 publications

References 30 publications

Growth and production of buckwheat (Fagopyrum esculentum) treated with reduced, ambient, and enhanced UV-B radiation

Growth and production of buckwheat (Fagopyrum esculentum) treated with reduced, ambient, and enhanced UV-B radiation

Enhanced UV-B and Elevated CO2 Impacts Sub-Arctic Shrub Berry Abundance, Quality and Seed Germination

The involvement of hydrogen peroxide in UV-B-inhibited pollen germination and tube growth of Paeonia suffruticosa and Paulownia tomentosa in vitro

Contact Info

Product

Resources

About