Abstract:
On a local scale, topography influences microclimate, vegetation structure and the morpho-physiological attributes of plants. We studied the effects of microclimatic differences between NE- and SW-facing slopes on the water relations and hydraulic properties of two dominant shrubs of the Patagonian steppe in Argentina (Retanilla patagonica and Colliguaja integerrima). The NE-facing slope had higher irradiance and air saturation deficits and lower soil water availability and wind speed than the SW-facing slope. Predawn and midday ΨL and osmotic potentials were significantly lower in shrubs on the NE-facing slope. Osmotic adjustment and more elastic cell walls helped the plants to cope with a more xeric environment on NE-facing slope. Higher water deficits on NE-facing slope were partially compensated by a higher leaf and stem water storage. While stem hydraulic efficiency did not vary between slopes, leaf hydraulic conductance was between 40% and 300% higher on the NE-facing slope. Changes observed in leaf size and in SLA were consistent with responses to mechanical forces of wind (smaller and scleromorphic leaves on SW-facing slope). Morpho-physiological adjustments observed at a short spatial scale allow maintenance of midday ΨL above the turgor loss point and demonstrate that leaves are more responsive to microclimatic selective pressures than stems. © 2011.
Registro:
Documento: |
Artículo
|
Título: | Water relations and hydraulic architecture of two Patagonian steppe shrubs: Effect of slope orientation and microclimate |
Autor: | Iogna, P.A.; Bucci, S.J.; Scholz, F.G.; Goldstein, G. |
Filiación: | Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina Grupo de Estudios Biofisicos y Ecofisiologicos (GEBEF), Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Argentina Laboratorio de Ecología Funcional, Departamento de Ecología, Genética y Evolución FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina Department of Biology, University of Miami, P.O Box 249118, Coral Gables, FL, United States
|
Palabras clave: | Colliguaja integerrima; Irradiance; Leaf water potential; Retanilla patagonica; Water transport efficiency; Wind; Wood density; adaptation; hydraulic conductivity; irradiance; leaf; microclimate; morphology; osmosis; physiological response; plant water relations; shrub; slope; soil water; spatial analysis; steppe; topographic effect; vegetation structure; wind forcing; Patagonia; Colliguaja integerrima; Retanilla patagonica |
Año: | 2011
|
Volumen: | 75
|
Número: | 9
|
Página de inicio: | 763
|
Página de fin: | 772
|
DOI: |
http://dx.doi.org/10.1016/j.jaridenv.2011.04.001 |
Título revista: | Journal of Arid Environments
|
Título revista abreviado: | J. Arid Environ.
|
ISSN: | 01401963
|
CODEN: | JAEND
|
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01401963_v75_n9_p763_Iogna |
Referencias:
- Austin, A., Sala, O., Carbon-nitrogen dynamics across a natural precipitation gradient in Patagonia, Argentina (2002) Journal of Vegetation Science, 13, pp. 351-360
- Austin, A.T., Yahdjian, L., Stark, J.M., Belnap, J., Porporato, A., Norton, U., Ravetta, D.A., Schaeffer, S.M., Water pulses and biogeochemical cycles in arid and semiarid ecosystems (2004) Oecologia, 141, pp. 221-235
- Barij, N., Stokes, A., Bogaard, T., Van Beek, R., Does growing on a slope affect tree xylem structure and water relations? (2007) Tree Physiology, 27, pp. 757-764
- Beeskow, A.M., Del Valle, H.F., Rostagno, C.M., (1987) Los sistemas fisiográficos de la región árida y semiárida de la provincia del Chubut, p. 173. , S. C de Bariloche SECYT Delegacion Regional Patagonica
- Brodribb, T.J., Holbrook, N.M., Stomatal closure during leaf dehydration, correlation with other leaf physiological traits (2003) Plant Physiology, 132, pp. 2166-2173
- Brodribb, T.J., Holbrook, N.M., Stomatal protection against hydraulic failure: a comparison of coexisting ferns and angiosperms (2004) New Phytologist, 162, pp. 663-670
- Bucci, S.J., Goldstein, G., Meinzer, F.C., Scholz, F.G., Franco, A.C., Bustamante, M., Functional convergence in hydraulic architecture and water relations of tropical savanna trees: from leaf to whole plant (2004) Tree Physiology, 24, pp. 891-899
- Bucci, S.J., Goldstein, G., Meinzer, F.C., Franco, A.C., Campanello, P., Scholz, F.G., Mechanisms contributing to seasonal homeostasis of minimum leaf water potential and predawn disequilibrium between soil and plant water in Neotropical savanna trees (2005) Trees, 19, pp. 296-304
- Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Campanello, P.I., Villalobos-Vega, R., Miralles-Wilhelm, F., Nutrient availability constrains the hydraulic architecture and water relations of savanna trees (2006) Plant Cell and Environment, 29, pp. 2153-2167
- Bucci, S.J., Scholz, F.G., Goldstein, G., Hoffmann, W.A., Meinzer, F.C., Franco, A.C., Giambelluca, T., Miralles-Wilhelm, F., Controls and stand transpiration and soil water utilization along a tree density gradient in a Neotropical savanna (2008) Agricultural and Forest Meteorology, 148, pp. 839-849. , Elsevier
- Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Arce, M.E., Soil water availability and rooting depth as determinants of hydraulic architecture of Patagonian woody species (2009) Oecologia, 160, pp. 631-641
- Cipriotti, P.A., Flombaum, P., Sala, O.E., Aguiar, M.R., Does drought control emergence and survival of grass seedlings in semi-arid rangelands? An example with Patagonian species (2008) Journal of Arid Environment, 72, pp. 162-174
- Franks, P.J., Drake, P.L., Froend, R.H., Anisohydric but isohydrodynamic: seasonally constant plant water potential gradient explained by a stomatal control mechanism incorporating variable plant hydraulic conductance (2007) Plant Cell and Environment, 30, pp. 19-30
- Fravolini, A., Hultine, K.R., Brugnoli, E., Gazal, R., English, N.B., Williams, D.G., Precipitation pulse use by an invasive woody legume: the role of soil texture and pulse size (2005) Oecología, 144, pp. 618-627
- Geiger, R., (1965) The Climate Near the Ground, , Harvard University Press, Cambridge, Mass
- Hacke, U.G., Sperry, J.S., Ewers, B.E., Ellsworth, D.S., Schafer, K.V.R., Oren, R., Influence of soil porosity on water use in Pinus taeda (2000) Oecologia, 124, pp. 495-505
- Hacke, U.G., Stiller, V., Sperry, J.S., Pittermann, J., McCulloh, K.A., Cavitation fatigue. embolism and refilling cycles can weaken the cavitation resistance of xylem (2001) Plant Physiology, 125, pp. 779-786
- (2007) IPCC WGI Fourth Assessment Report. Climate Change 2007: the Physical Science Basis, , IPCC, Switzerland, Intergovernmental Panel on Climate Change (IPCC)
- Kramer, P.J., Boyer, J.S., (1995) Water Relations of Plants and Soils, pp. 1-495. , Academic Press, San Diego, USA
- Lauenroth, W.K., Sala, O.E., Coffin, D.P., Kirchner, T.B., The importance of soil water in the recruitment of Bouteloua gracilis in the shortgrass steppe (1994) Ecological Applications, 4, pp. 741-749
- Lo Gullo, M.A., Nardini, A., Trifilo, P., Salleo, S., Diurnal and seasonal variations in leaf hydraulic conductance in evergreen and deciduous trees (2005) Tree Physiology, 25, pp. 505-512
- Maherali, H., Pockman, W.T., Jackson, R.B., Adaptive variation in the vulnerability of woody plants to xylem cavitation (2004) Ecology, 85 (8), pp. 2184-2199
- Meinzer, F.C., Rundel, P.W., Sharifi, M.R., Nilsen, E.T., Turgor and osmotic relation of the desert shrub Larrea tridentata (1986) Plant, Cell and Environment, 9, pp. 467-475
- Meinzer, F.C., James, S.A., Goldstein, G., Woodruff, D., Whole-tree water transport scales with sapwood capacitance in tropical forest canopy trees (2003) Plant, Cell and Environment, 26, pp. 1147-1155
- Meinzer, F.C., Woodruff, D.R., Domec, J.-C., Goldstein, G., Campanello, P.I., Gatti, M.G., Villalobos-Vega, R., Coordination of leaf and stem water transport properties in tropical forest trees (2008) Oecología, 156, pp. 31-41
- Mishio, M., Kawakubo, N., Kachi, N., Intraspecific variation in leaf morphology and photosynthetic traits in Boninia grisea Planchon (Rutaceae) endemic to the Bonin Islands, Japan (2007) Plant Species Biology, 22, pp. 117-124
- Mitchell, P.J., Veneklaas, E.J., Lambers, H., Burgess, S.S.O., Leaf water relations during summer water deficit: differential responses in turgor maintenance and variation in leaf structure among different plant communities in south-western Australia (2008) Plant, Cell and Environment, 31, pp. 1791-1802
- Nardini, A., Salleo, S., Andri, S., Circadian regulation of leaf hydraulic conductance in sunflowers (Helianthus annus L. cv Margot) (2005) Plant, Cell and Environment, 28, pp. 750-759
- Niklas, K.J., Influence of tissue density-specific mechanical properties on the scaling of plant height (1993) Annals of Botany, 72, pp. 173-179
- Niklas, K.J., Differences between Acer saccharum leaves from open and wind-protected sites (1996) Annals of Botany, 78, pp. 61-66
- Paruelo, J.M., Sala, O.E., Water losses in Patagonian steppe: a modeling approach (1995) Ecology, 76, pp. 510-520
- Pratt, R.B., Jacobsen, A.L., Ewers, F.W., Davis, S.D., Relationship among xylem transport, biomechanics and storage in stems and roots of nine Rhamnaceae species of the California chaparral (2007) New Phytologist, 174, pp. 787-798
- Sack, L., Frole, K., Leaf structural diversity is related to hydraulic capacity in tropical rainforest trees (2006) Ecology, 87, pp. 483-491
- Sack, L., Tyree, M.T., Leaf hydraulics and its implications in plant structure and function (2005) Vascular Transport in Plants, pp. 93-114. , Elsevier Academic Press, Oxford, N.M. Holbrook, M.A. Zwieniecki (Eds.)
- Sack, L., Tyree, M.T., Holbrook, M.N., Leaf hydraulic architecture correlated with regeneration and irradiance in tropical rainforest trees (2005) New Phytologist, 167, pp. 403-413
- Sack, L., Melcher, P.J., Zwieniecki, M.A., Holbrook, N.M., The hydraulic conductance of the angiosperm leaf lamina: a comparison of three measurement methods (2002) Journal of Experimental Botany, 53, pp. 2177-2184
- Schwinning, S., Starr, B.I., Ehleringer, J.R., Summer and winter dry in ecol desert ecosystem (Colorado plateau) part I: effects on soil water and plant water uptake (2005) Journal of Arid Environment, 60, pp. 547-566
- Scholz, F.G., Bucci, S.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Miralles-Wilhelm, F., Biophysical properties and functional significance of stem water storage tissues in Neotropical savanna trees (2007) Plant Cell and Environment, 30, pp. 236-248
- Scholz, F.G., Bucci, S.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Salazar, A., Plant- and stand-level variation in biophysical and physiological traits along tree density gradients in the Cerrado (2008) Brazilian Journal of Plant Physiology, 20, pp. 217-232
- Schulte, P.J., Hinckley, T.M., A comparison of pressure-volume curve data analysis techniques (1985) Journal of Experimental Botany, 36, pp. 1590-1602
- Smith, C.H., Ennos, A.R., The effects of air flow and stem flexure on the mechanical and hydraulic properties of the stems of sunflowers Helianthus annuus L. (2003) Journal of Experimental Botany, 54, pp. 845-849
- Soriano, A., Sala, O.E., Ecological strategies in a Patagonian arid steppe (1983) Vegetatio, 56, pp. 9-15
- Sperry, J.S., Stiller, V., Hacke, U.G., Xylem hydraulics and the soil-plant-atmosphere continuum: opportunities and unresolved issues (2003) Agronomy Journal, 95, pp. 1362-1370
- Stratton, L., Goldstein, G., Meinzer, F.C., Stem water storage and efficiency of water transport: their functional significance in a Hawaiian dry forest (2000) Plant Cell and Environment, 23, pp. 99-106
- Tardieu, F., Simonneau, T., Variability among species of stomatal control under fluctuating soil water status and evaporative demand: modeling isohydric and anisohydric behaviours (1998) Journal of Experimental Botany, 49, pp. 419-432
- Telewski, F.W., Growth, wood density, and ethylen production in response to mechanical perturbation in Pinus taeda (1990) Canadian Journal of Forest Research, 20, pp. 1277-1282
- Tyree, M.T., Hammel, H.T., The measurement of the turgor pressure and the water relations of plants by the pressure-bomb technique (1972) Journal of Experimental Botany, 23, pp. 267-282
- Tyree, M.T., Cheung, Y.N.S., McGregor, M.E., Talbot, A.J.B., The characteristic of seasonal and ontogenic changes in the tissue-water relations of Acer, Populus, Tsuga and Picea (1978) Canadian Journal of Botany, 56, pp. 635-647
- Tyree, M.T., Sperry, J.S., Vulnerability of xylem to cavitation and embolism (1989) Annual Review of Plant Physiology and Molecular Biology, 40, pp. 19-48
Citas:
---------- APA ----------
Iogna, P.A., Bucci, S.J., Scholz, F.G. & Goldstein, G.
(2011)
. Water relations and hydraulic architecture of two Patagonian steppe shrubs: Effect of slope orientation and microclimate. Journal of Arid Environments, 75(9), 763-772.
http://dx.doi.org/10.1016/j.jaridenv.2011.04.001---------- CHICAGO ----------
Iogna, P.A., Bucci, S.J., Scholz, F.G., Goldstein, G.
"Water relations and hydraulic architecture of two Patagonian steppe shrubs: Effect of slope orientation and microclimate"
. Journal of Arid Environments 75, no. 9
(2011) : 763-772.
http://dx.doi.org/10.1016/j.jaridenv.2011.04.001---------- MLA ----------
Iogna, P.A., Bucci, S.J., Scholz, F.G., Goldstein, G.
"Water relations and hydraulic architecture of two Patagonian steppe shrubs: Effect of slope orientation and microclimate"
. Journal of Arid Environments, vol. 75, no. 9, 2011, pp. 763-772.
http://dx.doi.org/10.1016/j.jaridenv.2011.04.001---------- VANCOUVER ----------
Iogna, P.A., Bucci, S.J., Scholz, F.G., Goldstein, G. Water relations and hydraulic architecture of two Patagonian steppe shrubs: Effect of slope orientation and microclimate. J. Arid Environ. 2011;75(9):763-772.
http://dx.doi.org/10.1016/j.jaridenv.2011.04.001