Photosynthetic and physiological responses of Swida hemsleyi [C.K. Schneid. et Wangerin] Sojak [Cornaceae] subjected to enhanced UV-B radiation and to nitrogen supply

• Autorzy: Yao X , Liu Q.
• Języki publikacji: EN

Abstrakty

EN

Atmospheric ozone remains depleted which in turn leads to the increase of UV-B radiation reaching the surface of the earth and in the same time more and more nitrogen will be imported into the terrestrial ecosystems through nitrogen deposition. These two factors will operate simultaneously. The photosynthetic and physiological responses of deciduous broad leaved species Swida hemsleyi occurring commonly at 1350–3700 m a.s.l. subjected to enhanced UV-B and to nitrogen supply were studied. The experimental design included two levels of UV-B treatments (ambient UV-B, 11.02 KJ m⁻² day⁻¹ and enhanced UV-B, 14.33 KJ m⁻² day⁻¹) and two nitrogen levels (without supplemental nitrogen supply and with supplemental nitrogen supply). An experiment was conducted in open semi-field condition in Maoxian Ecological Station of Chinese Academy of Sciences, Sichuan province, China at 1820 m a.s.l. Enhanced UV-B caused a marked decline in growth parameters, net photosynthetic rate, stomatal conductance to water vapour, chlorophyll pigments, whereas it induced an increase in rate of reactive oxygen species (ROS) production and ROS accumulation and malondialdehyde (MDA) content. Enhanced UV-B also induced an increase in leaf thickness and antioxidant compounds content, such as carotenoids and proline content. On the other hand, nitrogen supply caused an increase in some growth parameters, chlorophyll pigments and antioxidant compounds, and reduced ROS accumulation. However, nitrogen supply did not affect MDA content under enhanced UV-B, though it increased antioxidant compounds content and reduced the rate of ROS production and ROS accumulation. These results implied that enhanced UV-B brought harmful effects on Swida hemsleyi seedlings and supplemental nitrogen supply could alleviate the adverse effects of UV-B radiation on plants to some extent.

Słowa kluczowe

EN

physiological response; Swida hemsleyi; Cornaceae; ultraviolet-B radiation; nitrogen supply; atmospheric ozone; chlorophyll pigment; photosynthesis; proline; reactive oxygen species

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2009
• Tom: 57
• Numer: 3
• Opis fizyczny: p.483-494,fig.,ref.

Twórcy

autor

Yao X

• Chinese Academy of Sciences, P.O. Box 416, Chengdu 610041, China

autor

Liu Q.

Bibliografia

• Bates L.S., Waldren R.P., Teare I.D. 1973 – Rapid determination of free proline for water studies – Plant Soil, 39: 205–208.
• Bian J.C., Wang B.C., Chen H.B., Qi D.L., Lv D.R., Zhou X.J. 2006 – Miniature ozone hole appeared in Qinghai-Tibetan Plateau in December, 2003 – Chin. Sci. Bull. 51: 606–609. (in Chinese).
• Bowden R.D., Davidson E., Savage K., Arabia C., Steudler P. 2004 – Chronic nitrogen additions reduce total soil respiration and microbial respiration in temperate forest soils at the Harvard Forest – For. Ecol. Manage. 196: 43–56.
• Caldwell M.M. 1971 – Solar ultraviolet radiation and the growth and development of higher plants (In: Phytophysiology, Ed. A.C. Giese) – Academic Press, New York, pp. 131–177.
• Correia C.M., Moutinho-Pereira J.M., Coutinho J.F., Björn L.O., Torres-Pereira J.M.G. 2005 – Ultraviolet-B radiation and nitrogen affect the photosynthesis of maize: a Mediterranean field study – Eur. J. Agron. 22: 337–347.
• Day T.A., Neale P.J. 2002 – Effects of UV-B radiation on terrestrial and aquatic primary producers – Ann. Rev. Ecol. Syst. 33: 371–396.
• De La Rose T.M., Aphalo P.J., Lehto T. 2003 – Effects of ultraviolet-B radiation on growth, mycorrhizas and mineral nutrition of silver birch (Betula pendula Roth) seedlings grown in low-nutrient conditions – Glob. Change. Biol. 9: 65–73.
• Delauney A.J., Verma D.P.S. 1993 – Proline biosynthesis and osmo-regulation in plants – Plant J. 4: 215–223
• Du Y.J., Jin Y.H. 2000 – Effect of far ultraviolet radiation on lipid peroxidation and inherent protection system in seedlings of Taxus cuspidata – Chin. J. Appl. Ecol. 11: 660–664. (in Chinese with English abstract).
• Executive summary. 2003 – Environmental effects of ozone depletion and its interactions with climate change: 2002 assessment – Photochem. Photobiol. Sci. 2: 1–4.
• Farquhar G.D., Sharkey T.D. 1982 – Stomatal conductance and photosynthesis – J. Anne. Rev. Plant. Physiol. 33: 317–345.
• Field C., Mooney H.A. 1986 – The photosynthesis-nitrogen relationship in wild plants (In: On the economy of plant form and function, Ed. T.J. Givnish) – Cambridge University Press, London, pp. 25–55.
• Götz T., Windhövel U., Böger P., Sandmann G. 1999 – Protection of photosynthesis against ultraviolet-B radiation by carotenoids in transformants of the Cyanobacterium Synechococcus PCC7942 – Plant. Physiol. 120: 599–604.
• Hare P.D., Cress W.A. 1997 – Metabolic implications of stress-induced proline accumulation in plant – Plant. Growth. Regul. 21: 79–102.
• Ke D., Wang A., Sun G., Dong L. 2002 – The effect of active oxygen on the activity of ACC synthase induced by exogenous IAA – J. Integr. Plant Bot. 44: 551–556.
• Kilronomos J.N., Allen M.F. 1996 – UV-B mediated changes on below-ground communities associated with the roots of Acer saccharum – Funct. Ecol. 9: 923–930.
• Kulandaivelu G., Margatham S., Nedunchezhian N. 1989 – On the possible control of ultraviolet-B induced response in growth and photosynthetic activities in higher plants – Physiol. Plant, 76: 398–404.
• Lavola A., Aphalo P.J., Lahti M. and Julkunen-Tiitto R. 2003 – Nutrient availability and the effect of increasing UV-B radiation on secondary plant compounds in Scots pine – Environ. Exp. Bot. 49: 49–60.
• Li D.J., Mo J.M., Fang Y.T., Pen S.L., Gundersen P. 2003 – Impact of nitrogen deposition on forest plants – Acta. Ecologica. Sinica. 23: 1891–1900. (in Chinese with English abstract).
• Lichtenthaler H.K. 1987 – Chlorophylls and carotenoids: pigments of photosynthetic biomembranes – Methods. Enzymol. 148: 350–382.
• Mulholland M.M., Otte M.L. 2001 – The effects of nitrogen supply and salinity on DMSP, glycine betaine and proline concentrations in leaves of Spartina anglica – Aquat. Bot. 71: 63–70.
• Nakaji T., Fukami M., Dokiya Y., Izuta T. 2001 – Effects of high nitrogen load on growth, photosynthesis and nutrient status of Cryptomeria japonica and Pinus desiflora seedlings – Trees, 15: 453–461.
• Pinto M.E., Casati P., Hsu T.P., Ku M.S., Edwards G.E. 1999 – Effects of UV-B radiation on growth, photosynthesis, UV-B absorbing compounds and NADP-malic enzyme in bean (Phaseolus vulgaris L.) grown under different nitrogen conditions – J. Photochem. Photobiol: B. 48: 200–209.
• Prochazkova D., Sairam R.K., Srivastava G.C., Singh D.V. 2001 – Oxidative stress and antioxidant activity as the basis of senescence in maize leaves – Plant Sci. 161: 765–771.
• Pruvot G., Masimino J., Peltier G., Rey P. 1996 – Effects of low temperature, high salinity and exogenous ABA on the synthesis of two chloroplastic drought-induced proteins in Solanum tuberosum – Plant Physiol. 97: 123–131.
• Ren J., Dai W.R., Xuan Z.Y., Yao Y.A., Korpelainen H., Li C.Y. 2007 – The effect of drought and enhanced UV-B radiation on the growth and physiological traits of two contrasting poplar species – For. Ecol. Manag. 239: 112–119.
• Sánchez E., Ruiz J.M., Romero L. 2002 – Proline metabolism in response to nitrogen toxicity in fruit of French bean plants – Sci. Hortic. 93: 225–233.
• Santos I., Fidalgo F., Almeida J.M. 2004 – Biochemical and ultrastructural changes in leaves of potato plants grown under supplementary UV-B radiation – Plant Sci. 167: 925–935.
• Saradhi P.P., Alia S.A., Prasad K.V. 1995 – Proline accumulates in plants exposed to UV radiation and protects them against UV induced peroxidation – Biochem. Biophys. Res. Commun. 209: 1–5.
• Vitousek P.M., Howarth R.W. 1991 – Nitrogen limitation on land and in sea. How can it occur – Biogeochemistry, 13: 87–115.
• Wang C.H., He D.L., Zheng Y.F., Liu F. 2003 – Effects of enhanced UV-B radiation for two years on seed germination and seedling growth of maize – Rural Eco-Environment, 19: 23–25. (in Chinese with English abstract).
• Weih M., Johanson U., Jones D.G. 1998 – Growth and nitrogen utilization in seedlings of mountain birch (Betula pubescens ssp. tortuosa) as affected by ultraviolet radiation (UV-A and UV-B) under laboratory and natural conditions – Trees, 12: 201–207.
• Wu R.J., Zheng Y.F., Wang C.H., Hu Z.H. 2007 – Effects of enhanced UV-B radiation on the growth of aerial parts and root of maize – Ecology and Environment, 16: 323–326. (in Chinese with English Abstract)
• Xiao K., Zhang R.X., Qian W.P. 1998 – The physiological mechanism of senescence and photosynthetic function decline of flag leaf in wheat regulated by nitrogen nutrition – Plant Nutrition and Fertilizer Science, 4: 371–378. (in Chinese with English abstract).
• Xu X.L., Ou Y.H., Pei Z.Y., Zhou C.P. 2003 – Fate of N15 labeled nitrate and ammonium salts added to an Alpine Meadow in the Qinghai-Xizang Plateau – J. Integr. Plant Bot. 45: 276–281. (in Chinese with English abstract).
• Yao X.Q., Liu Q. 2006 – Changes in morphological, photosynthetic and physiological responses of Mono Maple seedlings to enhanced UV-B and to nitrogen addition – Plant Growth. Regul. 50: 165–177.
• Yao X.Q., Liu Q. 2007 – Changes in photosynthesis and antioxidant defenses of Picea asperata seedlings to enhanced ultraviolet-B and to nitrogen supply – Physiol. Plant. 129: 364–374.
• Zhou X.J., Luo C., Li W.L., Shi J.E. 1995 – Changes of total ozone in whole China and its low contents center in Qing-Zang Plateau regions – Chin. Sci. Bull. 40: 1396–1398. (in Chinese).