Artículo

La versión final de este artículo es de uso interno de la institución.
Consulte la política de Acceso Abierto del editor

Abstract:

We determined adjustments in physiology and morphology that allow Neotropical savanna trees from central Brazil (Cerrado) to avoid water deficits and to maintain a nearly constant internal water balance despite seasonal changes in precipitation and air saturation deficit (D). Precipitation in the study area is highly seasonal with about five nearly rainless months during which D is two fold higher compared to wet season values. As a consequence of the seasonal fluctuations in rainfall and D, soil water potential changes substantially in the upper 100 cm of soil, but remains nearly constant below 2 m depth. Hydraulic architecture and water relations traits of Cerrado trees adjusted during the dry season to prevent increasing water deficits and insure homeostasis in minimum leaf water potential ε and in total daily water loss per plant (isohydry). The isohydric behavior of Cerrado trees was the result of a decrease in total leaf surface area per tree, a strong stomatal control of evaporative losses, an increase in leaf-specific hydraulic conductivity and leaf hydraulic conductance and an increase in the amount of water withdrawn from internal stem storage, during the dry season. Water transport efficiency increased in the same proportion in leaves and terminal stems during the dry season. All of these seasonal adjustments were important for maintaining ε above critical thresholds, which reduces the rate of embolism formation in stems and help to avoid turgor loss in leaf tissues still during the dry season. These adjustments allow the stems of most Cerrado woody species to operate far from the point of catastrophic dysfunction for cavitation, while leaves operate close to it and experience embolism on a daily basis, especially during the dry season.

Registro:

Documento: Artículo
Título:Water relations and hydraulic architecture in Cerrado trees: Adjustments to seasonal changes in water availability and evaporative demand
Autor:Bucci, S.J.; Scholz, F.G.; Goldstein, G.; Meinzer, F.C.; Franco, A.C.; Zhang, Y.; Hao, G.-Y.
Filiación:Laboratorio de Ecología Funcional, Departamento de Biologia, Universidad Nacional de la Patagonia San Juan Bosco, (9000) Comodoro Rivadavia, Argentina
Comisión Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Laboratorio de Ecología Funcional, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
Department of Biology, University of Miami, P.O. Box 249118, Coral Gables, FL 33124, United States
USDA Forest Service, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, United States
Departamento de Botanica, Universidade de Brasília, Caixa Postal 04457, Brasília, DF 70904-970, Brazil
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 88 Xuefu Road, Kunming 650223, China
Palabras clave:Hydraulic conductivity; Isohydric behavior; Savanna; Soil water potential and water content; Stomatal conductance; Transpiration
Año:2008
Volumen:20
Número:3
Página de inicio:233
Página de fin:245
Título revista:Brazilian Journal of Plant Physiology
Título revista abreviado:Braz. J. Plant Physiol.
ISSN:16770420
CODEN:BJPPB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16770420_v20_n3_p233_Bucci

Referencias:

  • Borchert, R., Water storage in soil or tree stems determines phenology and distribution of tropical dry forest trees (1994) Ecology, 75, pp. 1437-1449
  • Brodribb, T.J., Holbrook, N.M., Gutierrez, M.V., Hydraulic and photosynthetic coordination in seasonally dry tropical forest trees (2002) Plant Cell Environ, 25, pp. 1435-1444
  • Brodribb, T.J., Holbrook, N.M., Stomatal closure during leaf dehydration, correlation with other leaf physiological traits (2003) Plant Physiol, 132, pp. 2166-2173
  • Brodribb, T.J., Holbrook, N.M., Stomatal protection against hydraulic failure: A comparison of coexisting ferns and angiosperms (2004) New Phytol, 162, pp. 663-670
  • Brodribb, T.J., Holbrook, N.M., Leaf physiology does not predict leaf habitat; examples from tropical dry forest (2005) Trees, 19, pp. 290-295
  • Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Dynamic diurnal changes in hydraulic specific conductivity in petiole of two savanna tree species: Identifying Factors and mechanisms contributing to the refilling of embolized vessels (2003) Plant Cell Environ, 26, pp. 1633-1645
  • Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Hinojosa, J.A., Hoffmann, W.A., Franco, A.C., Processes preventing nocturnal equilibration between leaf and soil water potential in tropical savanna woody species (2004) Tree Physiol, 24, pp. 1119-1127
  • 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 Physiol, 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 plants 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 Environ, 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 on stand transpiration and soil water utilization along a tree density gradient in a Neotropical Savanna (2008) Agric. For. Meteorol, 148, pp. 839-849
  • Canny, M., Embolism and refilling in the maize leaf lamina and the role of the protoxylem lacuna (2001) Am. J. Bot, 88, pp. 47-51
  • Castro, L.H.R., Kauffman, J., Ecosystem structure in the Brazilian Cerrado: A vegetation gradient of aboveground biomass, root mass and consumption by fire (1998) J. Trap. Ecol, 14, pp. 263-283
  • Damascos, M.A., Prado, C.H.B.A., Ronquim, C.C., Bud Composition, Branching Patterns and Leaf Phenology in Cerrado Woody Species (2005) Ann. Bot, 96, pp. 1075-1084
  • Domec, J.C., Scholz, F.G., Bucci, S.J., Meinzer, F.C., Goldstein, G., Villalobos-Vega, R., Diurnal and seasonal variation in root xylem embolism in neotropical savanna woody species: Impact on stomatal control of plant water status (2006) Plant Cell Environ, 29, pp. 26-35
  • Franco, A.C., Seasonal patterns of gas exchange, water relations and growth of Roupala montana, an evergreen species (1998) Plant Ecol, 136, pp. 69-76
  • Franco, A.C., Bustamante, M., Caldas, L.S., Goldstein, G., Meinzer, F.C., Kozovits, A.R., Rundel, P., Coradin, V.T.R., Leaf functional traits of Neotropical savanna trees in relation to seasonal water deficit (2005) Trees, 19, pp. 326-335
  • Frank, 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 Environ, 30, pp. 19-30
  • Furley, P.A., Ratter, J.A., Soil resources and plant communities of the central Brazilian Cerrado and their development (1988) J. Biogeogr, 15, pp. 97-108
  • Goldstein, G., Andrade, J.L., Meinzer, F.C., Holbrook, N.M., Cavalier, J., Jackson, P., Celis, A., Stem water storage and diurnal patterns of water use in tropical forest canopy trees (1998) Plant Cell Environ, 21, pp. 397-406
  • Goldstein, G., Meinzer, F.C., Bucci, S.J., Scholz, F.G., Franco, A.C., Hoffmann, W.A., Water economy of Neotropical savanna trees: Some paradigms revisited (2008) Tree Physiol, 28, pp. 395-404
  • Gouveia, G.P., Phenology of cerrado and gallery forest communities in central Brazil (1998) Revista Arvore, 22, pp. 443-450
  • Granier, A., Une nouvelle méthode pour la mesure du flux de séve brute dans le tronc des arbres. (1985) Ann. Sci. For, 42, pp. 193-200
  • Granier, A., Evaluation of transpiration in a Douglas fir stands by means of sap flow measurements (1987) Tree Physiol, 3, pp. 309-320
  • Hao, G., Hoffmann, W.A., Scholz, F.G., Bucci, S.J., Meinzer, F.C., Franco, A.C., Cao, K.-F., Goldstein, G., Stem and leaf hydraulics of congeneric tree species from adjacent tropical savanna and forest ecosystems (2008) Oecologia, 155, pp. 405-415
  • Hoffmann, W.A., da Silva, E.R., Machado, G.C., Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Seasonal leaf dynamics across a tree density gradient in a Brazilian savanna (2005) Oecologia, 145, pp. 307-316
  • Larcher, W., (1980) Physiological Plant Ecology, , 2nd edn, Springer-Verlag, Berlin
  • Lenza, E., Klink, C.A., Comportamento fenologico de especies lenhosas em um cerrado sentido restrito de Brasilia, DF (2006) Rev. Bras. Bot, 29, pp. 627-638
  • Lo Gullo, M.A., Nardini, A., Trifiló, P., Salleo, S., Changes in leaf hydraulic and stomatal conductance following drought stress and irrigation in Ceratonia siliqua (Carob tree) (2003) Physiol. Plant, 117, pp. 186-194
  • Marquis, R.J., Morais, H.C., Diniz, I.R., Interactions among cerrado plants and their herbivores: Unique or typical? (2002) The cerrados of Brazil: Ecology and natural history of a neotropical savanna, pp. 306-328. , Oliveira OS, Marquis RJ eds, Columbia University Press, New York
  • Meinzer, F.C., Goldstein, G., Franco, A.C., Bustamante, M., Igler, E., Jackson, P., Caldas, L., Rundel, P.W., Atmospheric and hydraulic limitations on transpiration in Brazilian Cerrado woody species (1999) Funct. Ecol, 13, pp. 273-282
  • Meinzer, F.C., Brooks, J.R., Bucci, S.J., Goldstein, G., Scholz, F.G., Warren, J.M., Converging patterns of uptake and hydraulic redistribution of soil water in contrasting woody vegetation types (2004) Tree Physiol, 24, pp. 919-928
  • Moreira, M.Z., Scholz, F.G., Bucci, S.J., Sternberg, L.S., Goldstein, G., Meinzer, F.C., Franco, A.C., Hydraulic lift in a Neotropical savanna (2003) Funct. Ecol, 17, pp. 573-581
  • Nobel, P.S., Sanderson, J., Rectifier-like activities of roots of two desert succulents (1984) J Exp. Bot, 35, pp. 727-737
  • Nobel, P.S., Schulte, P.J., North, G.B., Water influx characteristics and hydraulic conductivity for roots of Agave deserti Engelm (1990) J. Exp. Bot, 41, pp. 409-415
  • Prado, C.H.B.A., Wenhiu, Z., Rojas, M.H.C., Souza, G.M., Seasonal leaf gas exchange and water potential in a woody cerrado species community (2004) Braz. J. Plant Physiol, 16, pp. 7-16
  • Quesada, C.A., Miranda, A.C., Hodnett, M.G., Santos, A.J.B., Miranda, H.S., Breyer, L.M., Seasonal and depth variation of soil moisture in a burned open savanna (campo sujo) in central Brazil (2004) Ecol. Applic, 14, pp. 533-541
  • Quesada, C.A., Hodnett, M.G., Breyer, L.M., Santos, A.J.B., Andrade, S., Miranda, H.S., Miranda, C., Lloyd, J., Seasonal variations in soil water in two woodland savannas of central Brazil with different fire history (2008) Tree Physiol, 28, pp. 405-415
  • Ratter, J.A., Furley, P.A., Montgomery, R.F., Gifford, D.R., Observations on forests of 14 some mesotrophic soils in Central Brazil (1978) Rev. Bras. Bot, 1, pp. 47-58
  • Rivera, G., Elliott, S., Caldas, L.S., Nicolossi, G., Coradin, V.T.R., Borchert, R., Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain (2002) Trees, 16, pp. 445-456
  • Sack, I., Cowan, P.D., Jaikumar, N., Holbrook, N.M., The 'hydrology' of leaves: Coordination of structure and function in temperate woody species (2003) Plant Cell Environ, 26, pp. 1343-1356
  • Saraceno MI (2006) Efeitos da fertilizacao a longo prazo no metabolismo fotossintetico, nas caracteristicas foliares e no crescimento em arvores do cerrado. Brazil Universidade de Brasilia. Master thesis; Sarmiento G (1983) The savannas of tropical America. In: Tropical savannas. In: Bouliere F (ed.), Ecosystem of the World/Tropical savannas, pp. 245-248. Elsevier Scientific Pub. New York; Sarmiento, G., Goldstein, G., Meinzer, F., Adaptive strategies of woody species in neotropical savannas (1985) Biol. Rev, 60, pp. 315-355
  • Scholz, F.G., Bucci, S.J., Goldstein, G., Meinzer, F.C., Franco, A.C., Hydraulic redistribution of soil water by Neotropical savanna trees (2002) Tree Physiol, 22, pp. 603-612
  • Scholz, F.G., Bucci, S.J., Goldstein, G., Meinzer, F.C., Franco, A.C., Miralles-Welheim, F., Removal of nutrient limitations by long-term fertilization decreases nocturnal water loss in savanna trees (2006) Tree Physiol, 27, pp. 551-559
  • 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 Environ, 30, pp. 236-248
  • Scholz, F.G., Bucci, S.J., Goldstein, G., Moreira, M.Z., Meinzer, F.C., Domec, J.-C., Villalobos Vega, R., Miralles-Wilhelm, F., Biophysical and life history determinants of hydraulic lift in Neotropical savanna trees (2008) Funct. Ecol, 22, pp. 773-786
  • Scholz, F.G., Bucci, S.J., Goldstein, G., Meinzer, F.C., Franco, A.C., Miralles-Wilhelm, F., Temporal dynamics of stem expansion and contraction in savanna trees: Withdrawal and recharge of stored water (2008) Tree Physiol, 28, pp. 469-480
  • Simioni, G., Gignoux, J., Le Roux, X., Appe, R., Benest, D., Spatial and temporal variations in leaf area index, specific leaf area and leaf nitrogen of two co-occurring savanna tree species (2004) Tree Physiol, 24, pp. 205-216
  • Sperry, J.S., Tyree, M.T., Mechanism of water stress-induced xylem embolism (1988) Plant Physiol, 88, pp. 581-587
  • Tardieu, F., Simonneau, T., Variability among species of stomatal control under fluctuating soil water status and evaporative demand: Modeling isohydric and anisohydric behaviors (1998) J. Exp. Bot, 49, pp. 419-432
  • Turner, N.C., Jones, M.N., Turgor maintenance by osmotic adjustment: A review and evaluation (1980) Adaptation of plant to water and high temperature stress, pp. 87-104. , Turner NC, Kramer PJ eds, Wiley & Sons, New York
  • Tyree, M.T., Hammel, H.T., The measurement of the turgor pressure and water relations of plants by the pressure bomb technique (1972) J. Exp. Bot, 23, pp. 267-282
  • Tyree, M.T., Sperry, J.S., Do woody plants operate near the point of catastrophic xylem dysfunction caused by dynamic water stress? Answers from a model (1988) Plant Physiol, 88, pp. 574-580
  • Tyree, M.T., Sperry, J.S., Vulnerability of xylem to cavitation and embolism (1989) Ann. Rev. Plant Mol. Bio, 40, pp. 19-48
  • Woodruff, D.R., McCulloh, K.A., Warren, J.M., Meinzer, F.C., Lachenbruch, B., Impacts of tree height on leaf hydraulic architecture and stomatal control in Douglas-fir (2007) Plant Cell Environ, 30, pp. 559-569

Citas:

---------- APA ----------
Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Zhang, Y. & Hao, G.-Y. (2008) . Water relations and hydraulic architecture in Cerrado trees: Adjustments to seasonal changes in water availability and evaporative demand. Brazilian Journal of Plant Physiology, 20(3), 233-245.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16770420_v20_n3_p233_Bucci [ ]
---------- CHICAGO ----------
Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Zhang, Y., et al. "Water relations and hydraulic architecture in Cerrado trees: Adjustments to seasonal changes in water availability and evaporative demand" . Brazilian Journal of Plant Physiology 20, no. 3 (2008) : 233-245.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16770420_v20_n3_p233_Bucci [ ]
---------- MLA ----------
Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Zhang, Y., et al. "Water relations and hydraulic architecture in Cerrado trees: Adjustments to seasonal changes in water availability and evaporative demand" . Brazilian Journal of Plant Physiology, vol. 20, no. 3, 2008, pp. 233-245.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16770420_v20_n3_p233_Bucci [ ]
---------- VANCOUVER ----------
Bucci, S.J., Scholz, F.G., Goldstein, G., Meinzer, F.C., Franco, A.C., Zhang, Y., et al. Water relations and hydraulic architecture in Cerrado trees: Adjustments to seasonal changes in water availability and evaporative demand. Braz. J. Plant Physiol. 2008;20(3):233-245.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16770420_v20_n3_p233_Bucci [ ]