Effects of long-term experimental night-time warming and drought on photosynthesis, Fv/Fm and stomatal conductance in the dominant species of a Mediterranean shrubland

• Autorzy: Prieto P. , Penuelas J. , Llusia J. , Asensio D. , Estiarte M.
• Języki publikacji: EN

Abstrakty

EN

We conducted a night-time warming and drought field experiment for 7 years (1999–2005) in a Mediterranean shrubland. We focused on the two dominant shrub species, Erica multiflora L. and Globularia alypum L. and the tree Pinus halepensis L. and the final years to study the effects of the experimental night-time warming and drought on Fv/Fm, photosynthesis, and stomatal conductance. Warming treatment increased mean air temperature and mean soil temperature through the years by an average of 0.7 and 0.9°C respectively, and drought treatment reduced soil moisture through the years by an average of 19%. Warming tended to increase photosynthetic rates in E. multiflora, G. alypum and P. halepensis mostly in the cold seasons, when plants were more limited by temperature, as shown by the lowest values of Fv/Fm being detected in winter in the three studied species. A negative effect of warming was only detected for E. multiflora in summer 2003. Drought treatment generated different responses of net photosynthetic rates depending on the species, season and year. Stomatal conductance showed the same pattern as photosynthesis for the three studied species, displaying seasonal and inter-annual variability, although with an overall negative effect of drought for P. halepensis. Photosynthetic rates decreased significantly in the dry winter 2005 and spring 2005 in comparison to the same seasons of 2003 and 2004. There were positive correlations between the photosynthetic rates in different seasons for E. multiflora, G. alypum and P. halepensis and the soil moisture of the week prior to measurements. The great variation in the photosynthetic rates was thus explained in a significant part by soil moisture levels. The lowest Fv/Fm values usually corresponded with lowest stomatal conductances suggesting that drought stress could be associated to stress by low temperatures in winter.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2009
• Tom: 31
• Numer: 4
• Opis fizyczny: p.729-739,fig.,ref.

Twórcy

autor

Prieto P.

• Ecophysiology and Global Change Unit CREAF-CEAB-CSIC, Centre for Ecological Research and Forestry Applications, Universitat Autonoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Spain

autor

Penuelas J.

• Ecophysiology and Global Change Unit CREAF-CEAB-CSIC, Centre for Ecological Research and Forestry Applications, Universitat Autonoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Spain

autor

Llusia J.

• Ecophysiology and Global Change Unit CREAF-CEAB-CSIC, Centre for Ecological Research and Forestry Applications, Universitat Autonoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Spain

autor

Asensio D.

• Ecophysiology and Global Change Unit CREAF-CEAB-CSIC, Centre for Ecological Research and Forestry Applications, Universitat Autonoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Spain

autor

Estiarte M.

• Ecophysiology and Global Change Unit CREAF-CEAB-CSIC, Centre for Ecological Research and Forestry Applications, Universitat Autonoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Spain

Bibliografia

• Beier C, Emmett B, Gundersen P et al (2004) Novel approaches to study climate change effects on terrestial ecosystems in the field: drought and passive nighttime warming. Ecosystems (NY, Print) 7:583–597. doi:10.1007/s10021-004-0178-8
• Bellot J, Maestre FT, Hernández N (2004) Spatio-temporal dynamics of chlorophyll fluorescence in a semi-arid Mediterranean shrubland. J Arid Environ 58:295–308. doi:10.1016/j.jaridenv. 2003.08.009
• Bolòs O, Vigo J (1995) Flora dels Països Catalans. Barcino Editorial, Barcelona
• Chapin FS (1980) The mineral-nutrition of wild plants. Annu Rev Ecol Syst 11:233–260. doi:10.1146/annurev.es.11.110180. 001313
• De Luis M, Garcia-Cano MP, Cortina J et al (2001) Climatic trends, disturbances and short-term vegetation dynamics in a Mediterranean shrubland. For Ecol Manage 147:25–37
• Epron D (1997) Effects of drought on photosynthesis and on the thermotolerance of photosystem II in seedlings of cedar (Cedrus atlantica and C. libani). J Exp Bot 48:1835–1841
• Farquhar GD, Wong SC, Evans JR, Hubick KT (1989) Photosynthesis and gas exchange. In: Jones HG, Flowers TJ, Jones MB (eds) Plants under stress. Cambridge University Press, Cambridge, pp 47–69
• Filella I, Llusià J, Piñol J, Peñuelas J (1998) Leaf gas exchange and fluorescence of Phillyrea latifolia, Pistacia lentiscus and Quercus ilex saplings in severe drought and high temperature conditions. Environ Exp Bot 39:213–220. doi:10.1016/S0098-8472(97)00045-2
• Flexas J, Badger M, Chow WS, Medrano H, Osmond CB (1999) Analysis of the relative increase in photosynthetic O₂ uptake when photosynthesis in grapevine leaves is inhibited following low night temperatures and/or water stress. Plant Physiol 121:675–684. doi:10.1104/pp.121.2.675
• Gratani L, Pesoli P, Crescente MF, Aichner K, Larcher W (2000) Photosynthesis as a temperature indicator in Quercus ilex L. Glob Planet Change 24:153–163. doi:10.1016/S0921-8181(99) 00061-2
• Havaux M (1992) Stress tolerance of photosystem II in vivo. Antagonistic effects of water, heat, and photoinhibition stresses. Plant Physiol 100:424–432. doi:10.1104/pp.100.1.424
• Huntingford C, Cox PM, Lenton TM (2000) Contrasting responses of a simple terrestrial ecosystem model to global change. Ecol Modell 134:41–58. doi:10.1016/S0304-3800(00)00330-6
• IPCC (2007) Climate change 2007: the physical science basis. Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change. In: Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M, Miller HL (ed) Cambridge University Press, Cambridge
• Karavatas S, Manetas Y (1999) Seasonal patterns of photosystem 2 photochemical efficiency in evergreen sclerophylls and drought semi-deciduous shrubs under Mediterranean field conditions. Photosynthetica 36:41–49. doi:10.1023/A:1007010502269
• Ladjal M, Epron D, Ducrey M (2000) Effects of drought preconditioning on thermotolerance of photosystem II and susceptibility of photosynthesis to heat stress in cedar seedlings. Tree Physiol 20:1235–1241
• Larcher W (2000) Temperature stress and survival ability of Mediterranean sclrophyllous plants. Plant Biosyst 134:279–295. doi:10.1080/11263500012331350455
• Le Houérou HN (1996) Climate change, drought and desertification. J Arid Environ 34:133–185. doi:10.1006/jare.1996.0099
• Llorens L, Peñuelas J, Filella I (2003a) Diurnal and seasonal variations in the photosynthetic performance and water relation of two co-occurring Mediterranean shrubs, Erica multiflora and Globularia alypum. Physiol Plant 118:84–95. doi:10.1034/j.1399-3054.2003.00101.x
• Llorens L, Peñuelas J, Estiarte M (2003b) Ecophysiological responses of two Mediterranean shrubs, Erica multiflora and Globularia alypum, to experimentally drier and warmer conditions. Physiol Plant 119:231–243. doi:10.1034/j.1399-3054.2003.00174.x
• Llorens L, Peñuelas J, Estiarte M, Bruna P (2004) Contrasting growth changes in two dominant species of a Mediterranean shrubland submitted to experimental drought and warming. Ann Bot (Lond) 94:843–853. doi:10.1093/aob/mch211
• Llusià J, Peñuelas J (2000) Seasonal patterns of terpene content and emission from seven Mediterranean woody species in field conditions. Am J Bot 87:133–140. doi:10.2307/2656691
• Loik ME, Redar SP, Harte J (2000) Photosynthetic responses to a climate-warming manipulation for contrasting meadow species in the Rocky Mountains, Colorado, USA. Funct Ecol 14:166–175. doi:10.1046/j.1365-2435.2000.00411.x
• Long SP (1991) Modification of the response of photosynthetic productivity to rinsing temperature by atmospheric CO₂ concentration: has its importance been underestimated? Plant Cell Environ 14:729–739. doi:10.1111/j.1365-3040.1991.tb01439.x
• Long SP, Humphries S, Falkowski PG (1994) Photoinhibition of photosynthesis in nature. Annu Rev Plant Physiol Plant Mol Biol 45:633–662. doi:10.1146/annurev.pp.45.060194.003221
• Mcwilliam JR, Kramer PJ, Musser RL (1982) Temperature-induced water-stress in chilling-sensitive plants. Aust J Plant Physiol 9:343–352
• Melkonian J, Yu LX, Setter TL (2004) Chilling responses of maize (Zea mays L.) seedlings: root hydraulic conductance, abscisic acid, and stomatal conductance. J Exp Bot 55:1751–1760. doi: 10.1093/jxb/erh215
• Mitrakos KA (1980) A theory for Mediterranean plant life. Acta Oecol 1:245–252
• Ogaya R, Peñuelas J (2003a) Comparative seasonal gas exchange and chlorophyll fluorescence of two dominant woody species in a Holm Oak Forest. Flora 198:132–141
• Ogaya R, Peñuelas J (2003b) Comparative field study of Quercus ilex and Phillyrea latifolia: photosynthetic response to experimental drought conditions. Environ Exp Bot 50:137–148. doi:10.1016/ S0098-8472(03)00019-4
• Ogaya R, Peñuelas J (2007) Leaf mass per area ratio in Quercus ilex leaves under a wide range of climatic conditions. The importance of low temperatures. Acta Oecol 31:168–173. doi:10.1016/ j.actao.2006.07.004
• Oliveira G, Peñuelas J (2000) Comparative photochemical and phenomorphological responses to winter stress of an evergreen (Quercus ilex) and a semi-deciduous (Cistus albidus) Mediterranean woody species. Acta Oecol 21:97–107. doi:10.1016/ S1146-609X(00)00121-1
• Oliveira G, Peñuelas J (2001) Allocation of absorbed light energy into photochemistry and dissipation in a semi-deciduous and an evergreen Mediterranean woody species during winter. Aust J Plant Physiol 28:471–480
• Oliveira G, Peñuelas J (2004) The effect of winter cold stress on photosynthesis and photochemical efficiency of PSII of two Mediterranean woody species–Cistus albidus and Quercus ilex. Plant Ecol 175:179–191. doi:10.1007/s11258-005-4876-x
• Osmond CB (1994) What is photoinhibition? Some insights from comparisons of shade and sun plants. In: Baker NR, Bowyer JR (eds) Photoinhibition of photosynthesis: from molecular mechanisms to the field. BIOS Scientific Publishers Limited, Oxford, pp 1–24
• Peñuelas J, Boada M (2003) A global distribution of biodiversity inferred from climatic constraints: results from a process-based modelling study. Glob Change Biol 9:131–140. doi:10.1046/j.1365-2486.2003.00566.x
• Peñuelas J, Llusià J (2002) Linking photorespiration, terpenes and thermotolerance. New Phytol 155:227–237. doi:10.1046/j. 1469-8137.2002.00457.x
• Peñuelas J, Filella I, Llusià J, Siscart D, Piñol J (1998) Comparative field study of spring and summer leaf gas exchange and photobiology of the mediterranean trees Quercus ilex and Phillyrea latifolia. J Exp Bot 49:229–238. doi:10.1093/jexbot/49.319.229
• Peñuelas J, Filella I, Comas P (2002) Changed plant and animal life cycles from 1952–2000 in the Mediterranean region. Glob Change Biol 8:531–544. doi:10.1046/j.1365-2486.2002.00489.x
• Peñuelas J, Gordon C, Llorens L et al (2004) Non-intrusive field experiments show different plant responses to warming and drought among sites, seasons and species in a North-South European gradient. Ecosystems 7:598–612
• Peñuelas J, Filella I, Sabaté S, Gracia C (2005) Natural systems: terrestrial ecosystems. In: Llebot JE (ed) Climate change report in Catalonia. Institut d’Estudis Catalans, Barcelona, pp 517–553
• Peñuelas J, Prieto P, Beier C et al (2007) Response of plant species richness and primary productivity in shrublands along a northsouth gradient in Europe to seven years of experimental warming and drought. Reductions in primary productivity in the heat and drought year of 2003. Glob Change Biol 13:2563–2581. doi: 10.1111/j.1365-2486.2007.01464.x
• Piñol J, Terradas J, Lloret F (1998) Climate warming, wildfire hazard, and wildfire occurrence in coastal eastern Spain. Clim Change 38:345–357. doi:10.1023/A:1005316632105
• Prieto P (2007) Phenology, biomass and community composition changes in a Mediterranean shrubland submitted to experimental warming and drought. Ph.D. thesis, Universitat Autònoma de Barcelona, Spain, p 238
• Sabaté S, Gracia C, Sánchez A (2002) Likely effects of climate change on growth of Quercus ilex, Pinus halepensis, Pinus pinaster, Pinus sylvestris and Fagus sylvatica forests in the Mediterranean region. For Ecol Manage 162:23–37. doi:10.1016/S0378-1127(02)00048-8
• Sardans J, Peñuelas J (2005) Drought decreases soil enzyme activity in a Mediterranean Quercus ilex L. forest. Soil Biol Biochem 37:455–461. doi:10.1016/j.soilbio.2004.08.004
• Sardans J, Peñuelas J, Estiarte M (2006) Warming and drought alter soil phosphatase activity and soil P availability in a Mediterranean shrubland. Plant Soil 289:227–238. doi:10.1007/s11104-006-9131-2
• Sardans J, Peñuelas J, Estiarte M (2007) Seasonal patterns of rootsurface phosphatase activities in a Mediterranean shrubland. Responses to experimental warming and drought. Biol Fertil Soils 43:779–786. doi:10.1007/s00374-007-0166-1
• Tenhunen JD, Serra AS, Harley PC, Dougherty RL, Reynolds JF (1990) Factors influencing carbon fixation and water-use by Mediterranean sclerophyll shrubs during summer drought. Oecologia 82:381–393. doi:10.1007/BF00317487
• Valladares F, Pearcy RW (1997) Interactions between water stress, sun-shade acclimation, heat tolerance and photoinhibition in the sclerophyll Heteromeles arbutifolia. Plant Cell Environ 20:25–36. doi:10.1046/j.1365-3040.1997.d01-8.x
• Vernieri P, Lenzi A, Figaro M, Tognoni F, Pardossi A (2001) How the roots contribute to the ability of Phaseolus vulgaris L. to cope with chilling-induced water stress. J Exp Bot 52:2199–2206
• Yordanov I, Velikova V, Tsonev T (2000) Plant responses to drought, acclimation, and stress tolerance. Photosynthetica 38:171–186. doi:10.1023/A:1007201411474

Uwagi

Rekord w opracowaniu