Nutrient availability and the effect of increasing UV-B radiation on secondary plant compounds in Scots pine

Lavola, Anu; Aphalo, Pedro J.; Lahti, Markku; Julkunen‐Tiitto, Riitta

doi:10.1016/s0098-8472(02)00057-6

Cited by 97 publications

(72 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous studies have mainly focused on crop and herb plants. However, only limited papers have been reported the effects of nitrogen and UV-B radiation on woody plants (De La Rose et al 2001Lavola et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to enhanced UV-B and to nitrogen addition

Yao

Liu

2006

Plant Growth Regul

View full text Add to dashboard Cite

In the southeast of the Qinghai-Tibetan Plateau of China, Mono Maple is a common species in reforestation processes. The paper mainly investigated the changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to UV-B radiation, nitrogen supply and their combination. The experimental design included two levels of UV-B treatments (ambient UV-B, 11.02 KJ m -2 day -1 ; enhanced UV-B, 14.33 KJ m -2 day -1 ) and two nitrogen levels (0; 20 g N m -2 a -1 )-to determine whether the adverse effects of UV-B on plants are eased by nitrogen supply. Enhanced UV-B caused a marked decline in growth parameters, net photosynthetic rate, and photosynthetic pigments, whereas it induced an increase in reaction oxygen species (hydrogen peroxide accumulation and the rate of superoxide radical production) and malondialdehyde content. Enhance UV-B also induced an increase in antioxidant compounds of Mono Maple, such as UV-B absorbing compounds, proline content, and activities of antioxidant enzymes (peroxidase, superoxide dimutase and catalase). On the other hand, nitrogen supply caused an increase in some growth parameters, net photosynthetic rate, photosynthetic pigments and antioxidant compounds (peroxidase, proline content and UV-B absorbing compounds), and reduced the content of reaction oxygen species (H 2 O 2 accumulation, the rate of O 2 -production) and malondialdehyde content under ambient UV-B. However, under enhanced UV-B, nitrogen supply inhibited some growth parameters, and increased H 2 O 2 accumulation, the rate of O 2 -production and MDA content, though proline content, UV-B absorbing compounds and activities of POD and SOD increased. These results implied that enhanced UV-B brought harmful effects on Mono Maple seedlings and nitrogen supply made plants more sensitive to enhanced UV-B, though increased some antioxidant activity.

show abstract

Section: Introductionmentioning

confidence: 99%

Changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to enhanced UV-B and to nitrogen addition

Yao

Liu

2006

Plant Growth Regul

View full text Add to dashboard Cite

show abstract

“…87 Moreover, under six different daily doses of UV-radiation (UV-A and UV-B), photosynthetic pigments, condensed tannins were accumulated whereas its precursor, (+)-catechin, decreased significantly. 88 Our recent report suggests that photoperiod regimes influence endogenous indoleamines (serotonin and melatonin) in cultured green algae Dunaliella bardawil.…”

mentioning

confidence: 99%

Influence of abiotic stress signals on secondary metabolites in plants

Ramakrishna

Ravishankar

2011

Plant Signaling & Behavior

1,940

803

View full text Add to dashboard Cite

“…Lavola et al (2003), when studying Pinus sylvestris, concluded that the environmental factors that positively affect the pathway of the secondary metabolism of flavonoids also negatively affect, or are neutral, in the tannin pathway. Wieser et al (2003) studied the leaves of Fagus sylvatica in different gradients of exposure to solar radiation, and observed that the individuals that received more exposure to this factor presented a significant increase in the concentration of ascorbate and α-tocopherol; however, the concentration of glutathione did not differ when compared to plants in the shade, showing that some compounds may be more sensitive to certain factors.…”

Section: Resultsmentioning

confidence: 99%

Habitat influence on antioxidant activity and tannin concentrations ofSpondias tuberosa

Araújo

Castro

Amorim

et al. 2012

Pharmaceutical Biology

View full text Add to dashboard Cite

Nutrient availability and the effect of increasing UV-B radiation on secondary plant compounds in Scots pine

Cited by 97 publications

References 37 publications

Changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to enhanced UV-B and to nitrogen addition

Changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to enhanced UV-B and to nitrogen addition

Influence of abiotic stress signals on secondary metabolites in plants

Habitat influence on antioxidant activity and tannin concentrations ofSpondias tuberosa

Contact Info

Product

Resources

About