Assessing the impact of UV-B radiation on the growth and yield of field crops

Corlett, J. E.; Stephen, J.; Jones, Hamlyn G.; Woodfin, Richard O.; Mepsted, R.; Paul, Nigel D.; Lumsden, P. J.

doi:10.1017/cbo9780511752346.012

Cited by 31 publications

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“…In particular, due to filtering by cellulose diacetate films the contribution of UV-B decreases in relation to UV-A. These aspects are often neglected in the design of experiments and have been critically discussed by several authors Teramura 1993b, 1994;Newsham et al 1996;Corlett et al 1997;Holmes 2002;White and Jahnke 2002).…”

Section: Uv Irradiationmentioning

confidence: 99%

Effects of UV irradiation on barley and tomato leaves: thermoluminescence as a method to screen the impact of UV radiation on crop plants

Gilbert

Skotnica

Weingart

et al. 2004

Functional Plant Biol.

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The effect of different UV intensities and irradiation times on barley and tomato leaves was investigated by analysis of thermoluminescence (TL) and chlorophyll (chl) fluorescence measurements. Epifluorescence microscopy was used to estimate the epidermal UV transmittance of leaves. In barley a strong supression of TL emission from the S 2 Q B − (B-band) and the S 2 Q A − (Q-band) charge recombination was observed, increasing with prolonged UV exposure. Primary barley leaves were more sensitive to UV than secondary leaves. In tomato plants a decrease in the B-band only takes place at very high UV intensities and after prolonged exposure times (4 h). The impact of UV in cotyledons was more pronounced than in pinnate leaves of tomato plants. The strong differences in sensitivity to UV in the investigated barley and tomato variety may be due to different concentrations of UV screening pigments in the epidermal layer as demonstrated by epifluorescence measurements. The results show that TL has the same potential to analyse the sensitivity or tolerance of crop plants to UV irradiation as routine fluorescence techniques. Furthermore, TL is directly monitoring the radical pair states of PSII and can distinguish between UV-induced donor and acceptor site-related damage.

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Section: Uv Irradiationmentioning

confidence: 99%

Effects of UV irradiation on barley and tomato leaves: thermoluminescence as a method to screen the impact of UV radiation on crop plants

Gilbert

Skotnica

Weingart

et al. 2004

Functional Plant Biol.

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“…The majority of evidence indicates that UV-B radiation usually triggers inhibitory effects among species and cultivars, yet not all plant responses are damaging or disadvantageous (Teramura and Murali 1986;Mohammed and Tarpley 2009). It has been reported that supraoptimal UV-B doses might inhibit plant growth (Sullivan and Teramura 1989;Mohammed and Tarpley 2009), biomass production (Tosserams et al 2001;Tsukaguchi and Iida 2008), crop yield (Teramura and Sullivan 1991;Corlett et al 1997;Tsukaguchi and Iida 2008;Mohammed and Tarpley 2009), photosynthetic pigments (Musil et al 2002;Balakrishnan et al 2005) and capacity (Ilwanzik et al 1983;Hidema et al 1991;Teramura and Sullivan 1994). Yet, in contrast to the majority reports on Chl reduction following UV-B treatment, Battag and Brennan (2000) showed that the concentrations of Chl a and b in cucumber (Cucumis sativus L.) were not affected by UV-B treatment, while Musil et al (2002) reported an increase in Chl concentration for three South African plant species following UV-B exposure.…”

Section: Introductionmentioning

confidence: 99%

Micronutrients’ accumulation in rice after supplemental UV-B irradiation

Lidon

2012

Journal of Plant Interactions

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UV-B-mediated effects in Oryza sativa L. are studied considering micronutrients' accumulation and the photosynthetic performance. UV-B-irradiated rice leaves showed increasing membrane permeability and an inhibition of Fe accumulation linked to an antagonistic interaction with Mn. An increasing passive Cu uptake is also pointed, whereas Zn contents are associated with a higher root acidification capacity. In UV-B-irradiated leaves, photosynthetic pigments and the rates of the light reactions decreased significantly between the 15th and 28th day after germination. In the leaves grown after UV-B exposure, the electron transport rates coupled to photosystems II and II plus I increased significantly between the 21st and 28th day, whereas the Mehler reactions increased continuously from the 21st day onward. It is concluded that during vegetative growth the nutrient status is mostly linked to the inhibition of roots' acidification capacity, but after UV-B exposure micronutrients' accumulation favors this genotype recovery, shielding the photosynthetic light reactions.

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“…UVB radiation can adversely affect plant growth and development (Day and Neale 2002), the degree of damage varying with species (Kakani et al 2003b;Coleman and Day 2004) and cultivar (Corlett et al 1997;Papadopoulos et al 1999). Over the last two decades, the effects of UVB radiation on plant growth and physiological processes have been studied in a variety of crops and the results were, for the most part, deleterious (Biggs et al 1981;Dai et al 1994;Alenius et al 1995;Saile-Mark and Tevini 1997;Zavala and Botto 2002;Gitz et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Do low-ethylene-producing transgenic canola (Brassica napus) plants expressing the ACC deaminase gene differ from wild-type plants in response to UVB radiation?

et al. 2007

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Few studies have considered ethylene involvement in plant responses to ultraviolet-B (UVB) radiation. We studied the responses to UVB radiation of one wild-type (WT, 'Westar') canola (Brassica napus L.) with normal ethylene evolution and two transgenic (C1, C2) lines with lower ethylene evolution. Canola plants were grown under biologically effective levels of UVB (UVBBE) radiation: 0.03 (low), 4.88 (medium), and 9.78 (high) kJÁm -2 Ád -1 in controlledenvironment growth chambers. The growth and physiological parameters of the plants were measured. Of the two transgenic lines, C1 demonstrated higher ethylene evolution than C2 but lower than WT. The lowest aboveground and belowground biomass was found with exposure to high UVB radiation. WT produced more biomass than C2. Net CO2 assimilation and transpiration did not vary among plant lines or UVB treatments. Water-use efficiency was lower under high UVB radiation than under low UVB. The quantum yield of photosystem II was higher for C2 than for either WT or C1. WT did not differ from transgenic plants in respect to photosynthetic pigments and UV-screening compounds. Photosynthetic pigment concentration decreased, but concentration of UV-screening compounds, thickness of epicuticular wax, and the rate of root hydraulic conductance were increased by exposure to UVB radiation. While there appears to be a lack of ethylene involvement in some of the measured physiological parameters, the transgenic plants exhibited differential sensitivity to UVB in a few key measured parameters.Résumé : Peu d'études ont considéré l'implication de l'éthylène dans les réactions des plantes aux radiations d'ultraviolet-B (UVB). Les auteurs ont étudié les réactions du canola (Brassica napus L.) de type sauvage (WT, 'Westar') avec développement normal d'éthylène, et celles de deux lignées transgéniques (C1, C2) avec un développe-ment moindre d'éthylène, en présence d'UVB. Ils ont cultivé les plants de canola sous conditions contrôlées en chambres de croissance, en présence de trois doses de radiations UVB biologiquement actives (UVBBE) : 0,03 (faible), 4,88 (moyenne), 9,78 (élevée) kJÁm -2 Ád -1 . Ils ont mesuré des paramètres physiologiques et de croissance. Le C1 déve-loppe plus d'éthylène que le C2, mais moins que le WT. La biomasse épigée et hypogée est moindre en présence de radiations UVB. Les plants WT produisent plus de biomasse que les C2. L'assimilation nette de CO2 et la transpiration ne diffèrent pas selon les lignées de plantes ou les traitements UVB. L'efficacité de l'eau est plus faible sous de fortes radiations UVB que sous de faibles radiations UVB. Le rendement quantique du photosystéme II est plus élevé chez les C2 que pour les WT ou es C1. Les WT ne diffèrent pas des plantes transgéniques en termes de pigments photosynthétiques ou en composés filtrant les UV. Les pigments photosynthétiques diminuent, mais les composés filtrant les UV, la cire épicuticulaire et la conductance hydraulique racinaire augmentent sous l'influence des radiations UVB. Bien qu'il semble y avoir u...

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Assessing the impact of UV-B radiation on the growth and yield of field crops

Cited by 31 publications

References 0 publications

Effects of UV irradiation on barley and tomato leaves: thermoluminescence as a method to screen the impact of UV radiation on crop plants

Effects of UV irradiation on barley and tomato leaves: thermoluminescence as a method to screen the impact of UV radiation on crop plants

Micronutrients’ accumulation in rice after supplemental UV-B irradiation

Do low-ethylene-producing transgenic canola (Brassica napus) plants expressing the ACC deaminase gene differ from wild-type plants in response to UVB radiation?

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