Influence of solar UV radiation on the nitrogen metabolism in needles of Scots pine (Pinus sylvestris L.)

Krywult, Marek; Smykla, Jerzy; Kinnunen, Hannu; Martz, Françoise; Sutinen, Marja‐Liisa; Lakkala, Kaisa; Turunen, Minna

doi:10.1016/j.envpol.2008.04.009

Cited by 17 publications

(15 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the activities of glutamine synthetase of middle and sensitive clones decreased or remained stable under enhanced UV-B radiation, which should result in free amino acid accumulation. UV stress is known to generate reactive oxygen, which results in a higher demand for the enzyme proteins involved in antioxidant scavenging metabolisms (Turunen and Latola, 2005;Krywult et al, 2008). Increases in the contents of free amino acid of middle and sensitive wild sugarcane clones were relative to increases in the activities of nitrate reductase and decreases in the activities of glutamine synthetase with general decreases in total protein contents.…”

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 96%

“…A similar conclusion was made by Niu et al (2007) after analysis of photosynthetic pigments in wheat. Increases in the activities of nitrate reductase due to UV-B radiation is probably related to increased rates of photosynthesis, the enzymatic processes of N assimilation and biochemical processes in middle and sensitive wild sugarcane clones (Krywult et al, 2008). However, the activities of glutamine synthetase of middle and sensitive clones decreased or remained stable under enhanced UV-B radiation, which should result in free amino acid accumulation.…”

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 98%

“…In wild sugarcane, both roots and foliage participated in NO 3 -reduction (Krywult et al, 2008). Nitrate reductase activity in plants may also depend on temperature, water conditions, light intensity and UV radiation (Niu et al, 2007;Krywult et al, 2008). Nitrate reductase decreased in response to UV-B in both leaf and root tissue of barley plants, whereas glutamine synthetase was affected only in the root (Ghisi et al, 2002).…”

Section: Ajesmentioning

confidence: 99%

“…Nitrate reductase is a key enzyme of N metabolism, which converts nitrate into nitrite on the metabolic pathway leading to the formation of amino acids (Canovas et al, 2007). In wild sugarcane, both roots and foliage participated in NO 3 -reduction (Krywult et al, 2008). Nitrate reductase activity in plants may also depend on temperature, water conditions, light intensity and UV radiation (Niu et al, 2007;Krywult et al, 2008).…”

Section: Ajesmentioning

confidence: 99%

“…UV-B radiation, similar to other stresses, induces the synthesis of a new set of proteins in both chloroplasts and cytoplasm, which may protect against structural and functional damage. Environmental stress may increase the resistance of plants by increasing their production of phenolics, stress proteins and enzyme proteins involved in antioxidant scavenging metabolisms (Xu and Zhou, 2007;Krywult et al, 2008).…”

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 99%

See 4 more Smart Citations

RESPONSES IN NITROGEN MASS AND NITROGEN METABOLISM OF WILD SUGARCANE (<I>SACCHARUM SPONTANEUM</I> L.) CLONES TO ENHANCED UV-B RADIATION UNDER FIELD CONDITIONS

Zu¹,

Li²,

Wang³

et al. 2013

American Journal of Environmental Sciences

View full text Add to dashboard Cite

Field experiments were conducted to evaluate effects of enhanced UV-B radiation (280-315 nm) on intraspecific responses in nitrogen mass and nitrogen metabolism of six wild sugarcane (Saccharum spontaneum L.) clones. The clones were collected from original sites with different altitudes (4-1780 m above sea-level) and latitudes (18-38°N). The supplemental UV-B radiation was 5.00 kJ·m −2 , simulating a depletion of 20% stratospheric ozone. Out of the six tested wild sugarcane clones, available Nitrogen (N) contents in soil and N contents in leaves of four wild sugarcane clones decreased significantly. Leaf biomass and leaf N mass of six wild sugarcane clones significantly increased. UV-B radiation significantly decreased N contents and increased biomass and N mass in stems of six wild sugarcane clones. Contents of free amino acid of two wild sugarcane clones (92-11 and 92-36) significantly decreased, whilst that of clones 83-193 and II91-5 significantly increased. Total protein contents of three wild sugarcane clones significantly decreased, whilst that of clone 90-15 significantly increased. Nitrate reductase activities of two clones (92-11 and 90-15) significantly decreased, whilst that of four clones significantly increased. Glutamine synthetase activities of two clones (92-11 and 90-15) significantly increased, while that of clones 83-193 significantly decreased. UV-B radiation might change stem biomass, resulting in changes in N mass in stem and leaves. Results indicate that intraspecific responses in N mass and N metabolism of six wild sugarcane (S. spontaneum) clones differing in UV sensitivity to enhanced UV-B radiation exist under field conditions.

show abstract

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 96%

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 98%

Section: Ajesmentioning

confidence: 99%

Section: Ajesmentioning

confidence: 99%

Section: Uv-b Radiation and N Metabolismsmentioning

confidence: 99%

See 3 more Smart Citations

RESPONSES IN NITROGEN MASS AND NITROGEN METABOLISM OF WILD SUGARCANE (<I>SACCHARUM SPONTANEUM</I> L.) CLONES TO ENHANCED UV-B RADIATION UNDER FIELD CONDITIONS

Zu¹,

Li²,

Wang³

et al. 2013

American Journal of Environmental Sciences

View full text Add to dashboard Cite

show abstract

The Presence of Nitrates and the Impact of Ultraviolet Radiation as Factors that Determine Nitrate Reductase Activity and Nitrogen Concentrations in Deschampsia antarctica Desv. Around Penguin Rookeries on King George Island, Maritime Antarctica

Krywult

Smykla

Wincenciak

2013

Water Air Soil Pollut

View full text Add to dashboard Cite

Response of two cultivars of Phaseolus vulgaris L. (French beans) plants exposed to enhanced UV-B radiation under mountain ecosystem

Raghuvanshi

Sharma

2015

Environ Sci Pollut Res

View full text Add to dashboard Cite

Enhanced solar ultraviolet-B (UV-B) irradiance resulting from depletion in the ozone layer has the potential to cause detrimental effects on plants. Higher altitudes tend to receive higher doses of ambient UV-B radiation. The present study was carried out to assess the effects of enhanced UV-B (ambient + 10.2 kJ m(-2) day(-1)) radiation on two cultivars of Phaseolus vulgaris L. (cv. Pusa Himlata and Pusa Parvati) at growth, physiological, and biochemical levels grown under mountain ecosystem. The magnitudes of negative effects of enhanced UV-B radiation were found more in Pusa Parvati as compared to Pusa Himlata. Non-enzymatic (total phenolics and flavonoids content) and enzymatic antioxidants (superoxide dismutase, catalase, and peroxidase) were increased in both cultivars at both the ages of growth but increase was found more in Pusa Himlata as compared to Pusa Parvati. The study further showed that the economic yield of Pusa Himlata and Pusa Parvati was decreased by 14 and 44%, respectively, due to enhanced UV-B radiation. The higher decrease in the economic yield of Pusa Parvati depicted that increased amounts of total flavonoids content and stimulation of their antioxidant defense mechanism via increasing the activities of enzymatic antioxidants were not able to completely detoxify the produced reactive oxygen species under enhanced UV-B radiation and made it more sensitive to applied stress. From the present study, it can be concluded that enhanced UV-B radiation in the mountain areas of the Indian Himalayan Regions could be one of the environmental causes for lower yields of agricultural crops. Cultivation of P. vulgaris L. cv. Pusa Himlata should be promoted at higher altitudes of the Indian Himalayan Regions.

show abstract

Influence of solar UV radiation on the nitrogen metabolism in needles of Scots pine (Pinus sylvestris L.)

Cited by 17 publications

References 45 publications

RESPONSES IN NITROGEN MASS AND NITROGEN METABOLISM OF WILD SUGARCANE (<I>SACCHARUM SPONTANEUM</I> L.) CLONES TO ENHANCED UV-B RADIATION UNDER FIELD CONDITIONS

RESPONSES IN NITROGEN MASS AND NITROGEN METABOLISM OF WILD SUGARCANE (<I>SACCHARUM SPONTANEUM</I> L.) CLONES TO ENHANCED UV-B RADIATION UNDER FIELD CONDITIONS

The Presence of Nitrates and the Impact of Ultraviolet Radiation as Factors that Determine Nitrate Reductase Activity and Nitrogen Concentrations in Deschampsia antarctica Desv. Around Penguin Rookeries on King George Island, Maritime Antarctica

Response of two cultivars of Phaseolus vulgaris L. (French beans) plants exposed to enhanced UV-B radiation under mountain ecosystem

Contact Info

Product

Resources

About