Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Morphological shade-avoidance responses have been hypothesized to be a form of adaptive plasticity to improve competition for light; however, little is known about their intraspecific variability and their effect on reproductive fitness. To compare plant responses either at a common age or at a common phenological stage, two experiments were conducted with early- and late-flowering Chenopodium album plants exposed to different red (660 nm) to far red (730 nm) ratios. In the first experiment, plant height and number of leaves were recorded at several times during the vegetative stage, and at the onset of flowering, each plant was harvested and other growth traits were measured. In the second experiment, three destructive harvests were performed across the whole plant cycle. Plant growth and development markedly differed between early- and late-flowering plants in all of the conditions tested. Light treatments significantly affected stem length, total leaf number, total leaf area, and relative allocation to leaf biomass. In all families, the response of stem elongation to light treatments decreased later in the development, while changes in the other plastic responses were mostly due to variations in plant growth. No significant treatment effect was found on relative biomass allocation to reproductive structures. However, individual seed mass significantly differed between certain groups, indicating that light quality can affect reproductive fitness through changes in traits other than fruit or seed set.

Registro:

Documento: Artículo
Título:Changes in the responses to light quality during ontogeny in Chenopodium album
Autor:Causin, H.F.; Wulff, R.D.
Filiación:Depto. de Biodiversidad y Biol. Exp., Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Capital Federal, Argentina
Palabras clave:Chenopodium album; Fitness; Intraspecific variability; Phenotypic plasticity; Red to far red ratio; Shade-avoidance responses; Biomass; Fruits; Light; Morphology; Plasticity; Vegetation; Light treatments; Plants (botany); fitness; intraspecific variation; light quality; ontogeny; phenotypic plasticity; Anatomy; Biomass; Fruits; Light; Ontogeny; Plants; Plasticity; Chenopodium album; Magnoliophyta
Año:2003
Volumen:81
Número:2
Página de inicio:152
Página de fin:163
DOI: http://dx.doi.org/10.1139/b03-012
Título revista:Canadian Journal of Botany
Título revista abreviado:Can. J. Bot.
ISSN:00084026
CODEN:CJBOA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00084026_v81_n2_p152_Causin

Referencias:

  • Bradshaw, A.D., Evolutionary significance of phenotypic plasticity in plants (1965) Adv. Genet., 13, pp. 115-155
  • Brown, M.B., Forsythe, A.B., Robust tests for the equality of variances (1974) J. Am. Stat. Assoc., 69, pp. 264-267
  • Casal, J.J., Smith, H., The function, action and adaptive significance of phytochrome in light grown plants (1989) Plant Cell Environ., 12, pp. 855-862
  • Causin, H.F., Wulff, R.D., Fernández, E., The effect of maternal light quality on germination responses in Chenopodium album. III (2001) Jornadas Multidisciplinarias de la Sociedad Argentina de Biología, , Buenos Aires
  • De La Rosa, T.M., Aphalo, P.J., Lehto, T., Effects of far red light on the growth, mycorrhizas and mineral nutrition of Scots pine seedlings (1998) Plant Soil, 26, pp. 17-25
  • Donohue, K., Schmitt, J., The genetic architecture of plasticity to density in Impatiens capensis (1999) Evolution, 53, pp. 1377-1386
  • Dudley, S.A., Schmitt, J., Genetic differentiation in morphological responses to simulated foliage shade between populations of Impatiens capensis from open and woodland sites (1995) Funct. Ecol., 9, pp. 655-666
  • Fankhauser, C., Chory, J., Light control of plant development (1997) Annu. Rev. Cell Dev. Biol., 13, pp. 203-229
  • Fitter, A.H., Ashmore, C.J., Response of two Veronica species to a simulated woodland light climate (1974) New Phytol, 73, pp. 997-1001
  • Herrera, C.M., Individual differences in progeny viability in Lavandula latifolia: A long-term field study (2000) Ecology, 81, pp. 3036-3047
  • Holmes, M.G., Smith, H., The function of phytochrome in plants growing in the natural environment (1975) Nature (London), 254, pp. 512-514
  • Imbert, E., Escarré, J., Lepart, J., Seed heteromorphism in Crepis sancta (Asteraceae): Performance of two morphs in different environments (1997) Oikos, 79, pp. 325-332
  • Lacey, E.P., Herr, D., Parental effects in Plantago lanceolata L. III. Measuring parental temperature effects in the field (2000) Evolution, 54, pp. 1207-1217
  • Maas, F.M., Bakx, E.J., Morris, D.A., Photocontrol of stem elongation and dry weight partitioning in Phaseolus vulgaris L. by the blue-light content of photosynthetic photon flux (1995) J. Plant Physiol., 146, pp. 665-671
  • McConnaughay, K.D.M., Coleman, J.S., Biomass allocation in plants: Ontogeny or optimality? A test along three resource gradients (1999) Ecology, 80, pp. 2581-2593
  • Morgan, D.C., Smith, H., Linear relationship between phytochrome photoequilibrium and growth in plants under simulated natural radiation (1976) Nature (London), 262, pp. 210-212
  • Morgan, D.C., Smith, H., The relationship between phytochrome photoequilibrium and development in light grown Chenopodium album (1978) Planta, 142, pp. 187-193
  • Pigliucci, M., Schlichting, C.D., Ontogenetic reaction norms in Lobelia siphilitica (Lobeliaceae): Response to shading (1995) Ecology, 76, pp. 2134-2144
  • Pigliucci, M., Schlichting, C.D., Reaction norms of Arabidopsis. IV. Relationships between plasticity and fitness (1996) Heredity, 76, pp. 427-436
  • Pigliucci, M., Schmitt, J., Genes affecting phenotypic plasticity in Arabidopsis: Pleiotropic effects and reproductive fitness of photomorphogenic mutants (1999) J. Evol. Biol., 12, pp. 551-562
  • Pigliucci, M., DiIorio, P., Schlichting, C.D., Phenotypic plasticity of growth trajectories in two species of Lobelia in response to nutrient availability (1997) J. Ecol., 85, pp. 265-276
  • Potvin, C., Lechowicz, M.J., Tardif, S., The statistical analysis of ecophysiological response curves obtained from experiments involving repeated measures (1990) Ecology, 71, pp. 1389-1400
  • Schmitt, J., Reaction norms of morphological and life-history traits to light availability in Impatiens capensis (1993) Evolution, 47, pp. 1654-1668
  • Schmitt, J., Wulff, R.D., Light spectral quality, phytochrome and plant competition (1993) Trends Ecol. Evol., 8, pp. 47-50
  • Schmitt, J., Dudley, S.A., Pigliucci, M., Manipulative approaches to testing adaptive plasticity: Phytochrome-mediated shade-avoidance responses in plants (1999) Am. Nat., 154, pp. S43-S54
  • Smith, H., Light quality, photoreception, and plant strategy (1982) Annu. Rev. Plant Physiol., 33, pp. 481-518
  • Smith, H., Physiological and ecological function within the phytochrome family (1995) Annu. Rev. Plant Physiol. Plant Mol. Biol., 46, pp. 289-315
  • Stanton, M.L., Seed variation in wild radish: Effect of seed size on components of seedling and adult fitness (1984) Ecology, 65, pp. 1105-1112
  • (1999) STATISTICA for Windows (Computer Program Manual), , Stat Soft, Inc., Tulsa, Okla
  • Weinig, C., Differing selection in alternative competitive environments: Shade-avoidance responses and germination timing (2000) Evolution, 54, pp. 124-136
  • Weinig, C., Plasticity versus canalization: Population differences in the timing of shade-avoidance responses (2000) Evolution, 54, pp. 441-451
  • Wulff, R., Intraspecific variability in the response to light quality in Crotalaria incana and Impatiens sultanii (1998) Can. J. Bot., 76, pp. 699-703
  • Wulff, R.D., Seed size variation in Desmodium paniculatum. II. Effects on seedling growth and physiological performance (1986) J. Ecol., 74, pp. 99-114
  • Wulff, R.D., Seed size variation in Desmodium paniculatum. III. Effects on reproductive yield and competitive ability (1986) J. Ecol., 74, pp. 115-121
  • Wulff, R.D., Causin, H.F., Benitez, O., Bacalini, P.A., Intraspecific variability and maternal effects in the response to nutrient addition in Chenopodium album (1999) Can. J. Bot., 77, pp. 1150-1158

Citas:

---------- APA ----------
Causin, H.F. & Wulff, R.D. (2003) . Changes in the responses to light quality during ontogeny in Chenopodium album. Canadian Journal of Botany, 81(2), 152-163.
http://dx.doi.org/10.1139/b03-012
---------- CHICAGO ----------
Causin, H.F., Wulff, R.D. "Changes in the responses to light quality during ontogeny in Chenopodium album" . Canadian Journal of Botany 81, no. 2 (2003) : 152-163.
http://dx.doi.org/10.1139/b03-012
---------- MLA ----------
Causin, H.F., Wulff, R.D. "Changes in the responses to light quality during ontogeny in Chenopodium album" . Canadian Journal of Botany, vol. 81, no. 2, 2003, pp. 152-163.
http://dx.doi.org/10.1139/b03-012
---------- VANCOUVER ----------
Causin, H.F., Wulff, R.D. Changes in the responses to light quality during ontogeny in Chenopodium album. Can. J. Bot. 2003;81(2):152-163.
http://dx.doi.org/10.1139/b03-012