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Volumn 28, Issue 8, 2008, Pages 1277-1285

Effects of light and nutrients on seedlings of tropical Bauhinia lianas and trees

Author keywords

Biomass allocation; Phenotypic plasticity; Photosynthesis; Relative growth rate; Shade tolerance

Indexed keywords

CONCENTRATION (COMPOSITION); ENVIRONMENTAL CHANGE; GROWTH RATE; LEGUME; LIGHT EFFECT; NUTRIENT AVAILABILITY; PHENOTYPIC PLASTICITY; PHOTOSYNTHESIS; PREDICTION; SHADE TOLERANCE; TREE; TROPICAL ENVIRONMENT;

EID: 51149098121     PISSN: 0829318X     EISSN: None     Source Type: Journal    
DOI: 10.1093/treephys/28.8.1277     Document Type: Article
Times cited : (30)

References (55)
  • 1
    • 0028165129 scopus 로고
    • Effects of increased nitrogen and phosphorus availability on the photosynthesis and nutrient relations of three arctic dwarf shrubs from Svalbard
    • Baddeley, J.A., S.J. Woodin and I.J. Alexander. 1994. Effects of increased nitrogen and phosphorus availability on the photosynthesis and nutrient relations of three arctic dwarf shrubs from Svalbard. Funct. Ecol. 8:676-685.
    • (1994) Funct. Ecol , vol.8 , pp. 676-685
    • Baddeley, J.A.1    Woodin, S.J.2    Alexander, I.J.3
  • 2
    • 0027487526 scopus 로고
    • Factors limiting climber distribution and abundance in a southern African forest
    • Balfour, D. and W. Bond. 1993. Factors limiting climber distribution and abundance in a southern African forest. J. Ecol. 6:93-99.
    • (1993) J. Ecol , vol.6 , pp. 93-99
    • Balfour, D.1    Bond, W.2
  • 3
    • 0000894234 scopus 로고
    • The physiological ecology of plant succession
    • Bazzaz, F.A. 1979. The physiological ecology of plant succession. Annu. Rev. Ecol. Systemat. 10:351-371.
    • (1979) Annu. Rev. Ecol. Systemat , vol.10 , pp. 351-371
    • Bazzaz, F.A.1
  • 4
    • 0002289050 scopus 로고
    • Coping with environmental heterogeneity: The physiological ecology of tree seedling regeneration across the gap-understory continuum
    • Eds. M.M. Caldwell and R.W. Pearcy. Academic Press, San Diego, pp
    • Bazzaz, F.A. and P.M. Wayne. 1994. Coping with environmental heterogeneity: the physiological ecology of tree seedling regeneration across the gap-understory continuum. In Exploitation of Environmental Heterogeneity by Plants: Ecophysiological Processes Above and Below Ground. Eds. M.M. Caldwell and R.W. Pearcy. Academic Press, San Diego, pp 349-390.
    • (1994) Exploitation of Environmental Heterogeneity by Plants: Ecophysiological Processes Above and Below Ground , pp. 349-390
    • Bazzaz, F.A.1    Wayne, P.M.2
  • 5
    • 0002587546 scopus 로고
    • Some aspects of the equilibrium between overground and underground plant parts
    • Wageningen, pp
    • Brouwer, R. 1963. Some aspects of the equilibrium between overground and underground plant parts. Jaarb IBS 1963, Wageningen, pp 31-39.
    • (1963) Jaarb IBS 1963 , pp. 31-39
    • Brouwer, R.1
  • 6
    • 24344469572 scopus 로고    scopus 로고
    • Photosynthetic acclimation to light changes in tropical monsoon forest woody species differing in adult stature
    • Cai, Z.Q., T. Rijkers and F. Bongers. 2005. Photosynthetic acclimation to light changes in tropical monsoon forest woody species differing in adult stature. Tree Physiol. 25:1023-1031.
    • (2005) Tree Physiol , vol.25 , pp. 1023-1031
    • Cai, Z.Q.1    Rijkers, T.2    Bongers, F.3
  • 7
    • 34347241357 scopus 로고    scopus 로고
    • Seasonal changes in photosynthesis and growth of Zizyphus attopensis seedlings in three contrasting microhabitats in a tropical seasonal rain forest
    • Cai, Z.Q., Y.J. Chen and F. Bongers. 2007a. Seasonal changes in photosynthesis and growth of Zizyphus attopensis seedlings in three contrasting microhabitats in a tropical seasonal rain forest. Tree Physiol. 27:827-836.
    • (2007) Tree Physiol , vol.27 , pp. 827-836
    • Cai, Z.Q.1    Chen, Y.J.2    Bongers, F.3
  • 8
    • 34848928993 scopus 로고    scopus 로고
    • Seedling growth strategies in Bauhinia species: Comparing lianas and trees
    • Cai, Z.Q., L. Poorter, K.F. Cao and F. Bongers. 2007b. Seedling growth strategies in Bauhinia species: comparing lianas and trees. Ann. Bot. 104:831-838.
    • (2007) Ann. Bot , vol.104 , pp. 831-838
    • Cai, Z.Q.1    Poorter, L.2    Cao, K.F.3    Bongers, F.4
  • 9
    • 0033810818 scopus 로고    scopus 로고
    • Impacts of root competition in forests and woodlands: A theoretical framework and review of experiments
    • Coomes, D.A. and P.J. Grubb. 2000. Impacts of root competition in forests and woodlands: a theoretical framework and review of experiments. Ecol. Monogr. 70:171-207.
    • (2000) Ecol. Monogr , vol.70 , pp. 171-207
    • Coomes, D.A.1    Grubb, P.J.2
  • 11
    • 0025262514 scopus 로고    scopus 로고
    • Denslow, J.S., J.C. Schultz, P.M. Vitousek and B.R. Strain. 1990. Growth responses of tropical shrubs to treefall gap environments. Ecology 71:165-179.
    • Denslow, J.S., J.C. Schultz, P.M. Vitousek and B.R. Strain. 1990. Growth responses of tropical shrubs to treefall gap environments. Ecology 71:165-179.
  • 12
    • 1542367610 scopus 로고    scopus 로고
    • Structure and biomass of four lowland neotropical forests
    • DeWalt, S.J. and J. Chave. 2004. Structure and biomass of four lowland neotropical forests. Biotropica 36:7-19.
    • (2004) Biotropica , vol.36 , pp. 7-19
    • DeWalt, S.J.1    Chave, J.2
  • 13
    • 0021549457 scopus 로고
    • Isotopic composition of carbon correlates with water-use efficiency of wheat genotypes
    • Farquhar, G.D. and R.A. Richards. 1984. Isotopic composition of carbon correlates with water-use efficiency of wheat genotypes. Aust. J. Plant Physiol. 11:539-552.
    • (1984) Aust. J. Plant Physiol , vol.11 , pp. 539-552
    • Farquhar, G.D.1    Richards, R.A.2
  • 14
    • 0000461280 scopus 로고
    • Confidence limits on phylogenies: An approach using the bootstrap
    • Felsenstein, J. 1985. Confidence limits on phylogenies: an approach using the bootstrap. Evolution 39:783-791.
    • (1985) Evolution , vol.39 , pp. 783-791
    • Felsenstein, J.1
  • 16
    • 8844263932 scopus 로고    scopus 로고
    • Seedling response to gaps: Separating effects of light and nitrogen
    • Fownes, J.H. and R.A. Harrington. 2004. Seedling response to gaps: separating effects of light and nitrogen. For. Ecol Manage. 203:297-310.
    • (2004) For. Ecol Manage , vol.203 , pp. 297-310
    • Fownes, J.H.1    Harrington, R.A.2
  • 17
    • 85036879179 scopus 로고    scopus 로고
    • Givnish, T.J. 1986. On the economy of plant form and function. Cambridge University Press, Cambridge, U.K., 736 p.
    • Givnish, T.J. 1986. On the economy of plant form and function. Cambridge University Press, Cambridge, U.K., 736 p.
  • 18
    • 0036038644 scopus 로고    scopus 로고
    • Ecological constraints on the evolution of plasticity in plants
    • Givnish, T.J. 2002. Ecological constraints on the evolution of plasticity in plants. Evol. Ecol. 16:213-242.
    • (2002) Evol. Ecol , vol.16 , pp. 213-242
    • Givnish, T.J.1
  • 20
    • 0000950678 scopus 로고
    • Relative growth rate, its range and adaptive significance in a local flora
    • Grime, J.P. and R. Hunt. 1975. Relative growth rate, its range and adaptive significance in a local flora. J. Ecol. 63:393-422.
    • (1975) J. Ecol , vol.63 , pp. 393-422
    • Grime, J.P.1    Hunt, R.2
  • 21
    • 0030303539 scopus 로고    scopus 로고
    • Interaction of irradiance and soil nutrient supply on growth of seedlings of ten European tall-shrub species and Fagus sylvatica
    • Grubb, P.J., W.G. Lee, J. Kollmann and J.B. Wilson. 1996. Interaction of irradiance and soil nutrient supply on growth of seedlings of ten European tall-shrub species and Fagus sylvatica. J. Ecol. 84:827-840.
    • (1996) J. Ecol , vol.84 , pp. 827-840
    • Grubb, P.J.1    Lee, W.G.2    Kollmann, J.3    Wilson, J.B.4
  • 22
    • 0029477746 scopus 로고
    • Nutrient availability and growth rate of 34 woody species from a tropical deciduous forest in Mexico
    • Huante, P., E. Rincon and I. Acosta. 1995. Nutrient availability and growth rate of 34 woody species from a tropical deciduous forest in Mexico. Funct. Ecol. 9:849-858.
    • (1995) Funct. Ecol , vol.9 , pp. 849-858
    • Huante, P.1    Rincon, E.2    Acosta, I.3
  • 23
    • 33846483861 scopus 로고    scopus 로고
    • Soil nutrients influence spatial distributions of tropical tree species
    • John, R., J.W. Dalling, K.E. Harms et al. 2007. Soil nutrients influence spatial distributions of tropical tree species. Proc. Natl. Acad. Sci. USA 104:864-869.
    • (2007) Proc. Natl. Acad. Sci. USA , vol.104 , pp. 864-869
    • John, R.1    Dalling, J.W.2    Harms, K.E.3
  • 24
    • 0027085109 scopus 로고
    • Co-occurring tree species change rank in seedling performance with resources varied experimentally
    • Latham, R.E. 1992. Co-occurring tree species change rank in seedling performance with resources varied experimentally. Ecology 73:2129-2144.
    • (1992) Ecology , vol.73 , pp. 2129-2144
    • Latham, R.E.1
  • 25
    • 0030428783 scopus 로고    scopus 로고
    • The specialization hypothesis for phenotypic plasticity in plants
    • Lortie, C.J. and L.W. Aarssen. 1996. The specialization hypothesis for phenotypic plasticity in plants. Inter. J. Plant Sci. 157:484-487.
    • (1996) Inter. J. Plant Sci , vol.157 , pp. 484-487
    • Lortie, C.J.1    Aarssen, L.W.2
  • 26
    • 1342311365 scopus 로고    scopus 로고
    • The effect of nutrient enrichment on growth, photosynthesis and hydraulic conductance of dwarf mangroves in Panama
    • Lovelock, C.E., I.C. Feller, K.L. McKee, B.M. Engelbrecht and M.C. Ball. 2004. The effect of nutrient enrichment on growth, photosynthesis and hydraulic conductance of dwarf mangroves in Panama. Funct. Ecol. 18:25-33.
    • (2004) Funct. Ecol , vol.18 , pp. 25-33
    • Lovelock, C.E.1    Feller, I.C.2    McKee, K.L.3    Engelbrecht, B.M.4    Ball, M.C.5
  • 27
    • 34547866479 scopus 로고    scopus 로고
    • Congruence between floristic patterns of trees and lianas in a southwest Amazonian rain forest
    • Macía, M.J., K. Ruokolainen, H. Tuomisto, J. Quisbert and V. Cala. 2007. Congruence between floristic patterns of trees and lianas in a southwest Amazonian rain forest. Ecography 30:561-577.
    • (2007) Ecography , vol.30 , pp. 561-577
    • Macía, M.J.1    Ruokolainen, K.2    Tuomisto, H.3    Quisbert, J.4    Cala, V.5
  • 28
    • 34250766828 scopus 로고    scopus 로고
    • Light-dependent leaf trait variation in 43 tropical dry forest tree species
    • Markesteijn, L., L. Poorter and F. Bongers. 2007. Light-dependent leaf trait variation in 43 tropical dry forest tree species. Am. J. Bot. 94:515-525.
    • (2007) Am. J. Bot , vol.94 , pp. 515-525
    • Markesteijn, L.1    Poorter, L.2    Bongers, F.3
  • 29
    • 0036248176 scopus 로고    scopus 로고
    • Soil dilution as a surrogate for root competition: Effects on growth of seedlings of Australian tropical rain forest trees
    • Metcalfe, D.J., P.J. Grubb and S.S. Metcalfe. 2002. Soil dilution as a surrogate for root competition: effects on growth of seedlings of Australian tropical rain forest trees. Funct. Ecol. 16:223-231.
    • (2002) Funct. Ecol , vol.16 , pp. 223-231
    • Metcalfe, D.J.1    Grubb, P.J.2    Metcalfe, S.S.3
  • 30
    • 30144445464 scopus 로고    scopus 로고
    • Abiotic stress, the field environment and stress combination
    • Mittler, R. 2006. Abiotic stress, the field environment and stress combination. Trends Plant Sci. 11:15-19.
    • (2006) Trends Plant Sci , vol.11 , pp. 15-19
    • Mittler, R.1
  • 31
    • 2642526342 scopus 로고    scopus 로고
    • Photosynthetic acclimation to simultaneous and interacting environmental stresses along natural light gradients: Optimality and constraints
    • Niinemets, Ü. and F. Valladares. 2004. Photosynthetic acclimation to simultaneous and interacting environmental stresses along natural light gradients: optimality and constraints. Plant Biol. 6:254-268.
    • (2004) Plant Biol , vol.6 , pp. 254-268
    • Niinemets, U.1    Valladares, F.2
  • 32
    • 33845299841 scopus 로고    scopus 로고
    • Tolerance to shade, drought, and waterlogging of temperate northern hemisphere trees and shrubs
    • Niinemets, Ü and F. Valladares. 2006. Tolerance to shade, drought, and waterlogging of temperate northern hemisphere trees and shrubs. Ecol. Monogr. 76:521-547.
    • (2006) Ecol. Monogr , vol.76 , pp. 521-547
    • Niinemets, U.1    Valladares, F.2
  • 33
    • 0001806326 scopus 로고
    • Photosynthetic acclimation to changing light environments: Scaling from the leaf to the whole plant
    • Eds. M.M. Caldwell and R.W. Pearcy. Academic Press, San Diego, pp
    • Pearcy, R.W. and D.A. Sims. 1994. Photosynthetic acclimation to changing light environments: scaling from the leaf to the whole plant. In Exploitation of Environmental Heterogeneity by Plants: Ecophysiological Processes Above and Below Ground. Eds. M.M. Caldwell and R.W. Pearcy. Academic Press, San Diego, pp 145-174.
    • (1994) Exploitation of Environmental Heterogeneity by Plants: Ecophysiological Processes Above and Below Ground , pp. 145-174
    • Pearcy, R.W.1    Sims, D.A.2
  • 34
    • 0032777592 scopus 로고    scopus 로고
    • Growth response of 15 rain-forest tree species to a light gradient: The relative importance of morphological and physiological traits
    • Poorter, L. 1999. Growth response of 15 rain-forest tree species to a light gradient: the relative importance of morphological and physiological traits. Funct. Ecol. 13:396-410.
    • (1999) Funct. Ecol , vol.13 , pp. 396-410
    • Poorter, L.1
  • 35
    • 34247341176 scopus 로고    scopus 로고
    • Resource capture and use by tropical forest tree seedlings and their consequences for competition
    • Eds. D.F.R.P. Burslem, M.A. Pinard and S.E. Hartley. Cambridge University Press, Cambridge, pp
    • Poorter, L. 2005. Resource capture and use by tropical forest tree seedlings and their consequences for competition. In Biotic Interactions in the Tropics: Their Role in the Maintenance of Species Diversity. Eds. D.F.R.P. Burslem, M.A. Pinard and S.E. Hartley. Cambridge University Press, Cambridge, pp 35-64.
    • (2005) Biotic Interactions in the Tropics: Their Role in the Maintenance of Species Diversity , pp. 35-64
    • Poorter, L.1
  • 36
    • 33745184985 scopus 로고    scopus 로고
    • Leaf traits are good predictors of plant performance across 53 tropical rain forest species
    • Poorter, L. and F. Bongers. 2006. Leaf traits are good predictors of plant performance across 53 tropical rain forest species. Ecology 87:1733-1743.
    • (2006) Ecology , vol.87 , pp. 1733-1743
    • Poorter, L.1    Bongers, F.2
  • 37
  • 38
    • 0026283595 scopus 로고
    • Acclimation of seedlings of three tropical rain forest tree species to a change in light availability
    • Popma, J. and F. Bongers. 1991. Acclimation of seedlings of three tropical rain forest tree species to a change in light availability. J. Trop. Ecol. 7:85-97.
    • (1991) J. Trop. Ecol , vol.7 , pp. 85-97
    • Popma, J.1    Bongers, F.2
  • 39
    • 0026595436 scopus 로고
    • Gap dependence and leaf characteristics of trees in a tropical lowland rain forest in Mexico
    • Popma, J., F. Bongers and M.J.A. Werger. 1992. Gap dependence and leaf characteristics of trees in a tropical lowland rain forest in Mexico. Oikos 63:207-214.
    • (1992) Oikos , vol.63 , pp. 207-214
    • Popma, J.1    Bongers, F.2    Werger, M.J.A.3
  • 40
    • 33846265258 scopus 로고    scopus 로고
    • Structural and physiological plasticity to light and nutrients in five temperate deciduous woody species of contrasting shade tolerance
    • Portsmuth, A. and Ü. Niinemets. 2007. Structural and physiological plasticity to light and nutrients in five temperate deciduous woody species of contrasting shade tolerance. Funct. Ecol. 21:61-77.
    • (2007) Funct. Ecol , vol.21 , pp. 61-77
    • Portsmuth, A.1    Niinemets, U.2
  • 41
    • 0021546048 scopus 로고
    • The natural history of lianas on Barro Colorado Island, Panama
    • Putz, F.E. 1984. The natural history of lianas on Barro Colorado Island, Panama. Ecology 65:1713-1724.
    • (1984) Ecology , vol.65 , pp. 1713-1724
    • Putz, F.E.1
  • 42
    • 85040897377 scopus 로고
    • Cambridge University Press, Cambridge, U.K, 526 p
    • Putz, F.E. and H.A. Mooney. 1991. The biology of vines. Cambridge University Press, Cambridge, U.K., 526 p.
    • (1991) The biology of vines
    • Putz, F.E.1    Mooney, H.A.2
  • 43
    • 6844254050 scopus 로고
    • Growth of tropical rain forest trees as dependent on phosphorus supply
    • Tropenbos Foundation, Wageningen, 97 p
    • Raaimakers, D. 1994. Growth of tropical rain forest trees as dependent on phosphorus supply. Tropenbos Series 11, Tropenbos Foundation, Wageningen, 97 p.
    • (1994) Tropenbos Series , vol.11
    • Raaimakers, D.1
  • 44
    • 0006882622 scopus 로고
    • Metamorphosis in the Araceae
    • Ray, T.S. 1990. Metamorphosis in the Araceae. Am. J. Bot. 77:1599-1609.
    • (1990) Am. J. Bot , vol.77 , pp. 1599-1609
    • Ray, T.S.1
  • 45
    • 33646588656 scopus 로고    scopus 로고
    • Plasticity in leaf traits of 38 tropical tree species in response to light: Relationships with light demand and adult stature
    • Rozendaal, D.M.A., V.H. Hurtado and L. Poorter. 2006. Plasticity in leaf traits of 38 tropical tree species in response to light: relationships with light demand and adult stature. Funct. Ecol. 20:207-216.
    • (2006) Funct. Ecol , vol.20 , pp. 207-216
    • Rozendaal, D.M.A.1    Hurtado, V.H.2    Poorter, L.3
  • 46
    • 33644601750 scopus 로고    scopus 로고
    • Nutritional differences and leaf acclimation of climbing plants and the associated vegetation in different types of an Andean montane rain forest
    • Salzer, J., S. Matezki and M. Kazda. 2006. Nutritional differences and leaf acclimation of climbing plants and the associated vegetation in different types of an Andean montane rain forest. Oecologia 147:417-425.
    • (2006) Oecologia , vol.147 , pp. 417-425
    • Salzer, J.1    Matezki, S.2    Kazda, M.3
  • 47
    • 23044471151 scopus 로고    scopus 로고
    • A mechanistic explanation for global patterns of liana abundance and distribution
    • Schnitzer, S.A. 2005. A mechanistic explanation for global patterns of liana abundance and distribution. Am. Nat. 166:262-276.
    • (2005) Am. Nat , vol.166 , pp. 262-276
    • Schnitzer, S.A.1
  • 48
    • 0036568544 scopus 로고    scopus 로고
    • The ecology of lianas and their role in forests
    • Schnitzer, S.A. and F. Bongers. 2002. The ecology of lianas and their role in forests. Trends Ecol. Evol. 17:223-230.
    • (2002) Trends Ecol. Evol , vol.17 , pp. 223-230
    • Schnitzer, S.A.1    Bongers, F.2
  • 49
    • 0033841555 scopus 로고    scopus 로고
    • The impact of lianas on tree regeneration in tropical forest canopy gaps: Evidence for an alternative pathway of gap-phase regeneration
    • Schnitzer, S.A., J.W. Dalling and W.P. Carson. 2000. The impact of lianas on tree regeneration in tropical forest canopy gaps: evidence for an alternative pathway of gap-phase regeneration. J. Ecol. 88:655-666.
    • (2000) J. Ecol , vol.88 , pp. 655-666
    • Schnitzer, S.A.1    Dalling, J.W.2    Carson, W.P.3
  • 50
    • 34047223031 scopus 로고    scopus 로고
    • Above-ground biomass investments and light interception of tropical forest trees and lianas early in succession
    • Selaya, N.G., N.P.R. Anten, R.J. Oomen, M. Matthies and M.J.A. Werger. 2007. Above-ground biomass investments and light interception of tropical forest trees and lianas early in succession. Ann. Bot. 99:141-151.
    • (2007) Ann. Bot , vol.99 , pp. 141-151
    • Selaya, N.G.1    Anten, N.P.R.2    Oomen, R.J.3    Matthies, M.4    Werger, M.J.A.5
  • 51
    • 0001494852 scopus 로고
    • Response of leaf anatomy and photosynthetic capacity in Alocasia macrorrhiza (Araceae) to a transfer from low to high light
    • Sims, D.A. and R.W. Pearcy. 1992. Response of leaf anatomy and photosynthetic capacity in Alocasia macrorrhiza (Araceae) to a transfer from low to high light. Am. J. Bot. 79:449-455.
    • (1992) Am. J. Bot , vol.79 , pp. 449-455
    • Sims, D.A.1    Pearcy, R.W.2
  • 52
    • 34247485864 scopus 로고    scopus 로고
    • Trenching increased growth, and irrigation increased survival of tree seedlings in the under-storey of a semi-evergreen rain forest in Panama
    • Tanner, E.V.J. and I.M. Barberis. 2007. Trenching increased growth, and irrigation increased survival of tree seedlings in the under-storey of a semi-evergreen rain forest in Panama. J. Trop. Ecol. 23:257-268.
    • (2007) J. Trop. Ecol , vol.23 , pp. 257-268
    • Tanner, E.V.J.1    Barberis, I.M.2
  • 53
    • 0026279645 scopus 로고
    • Physiological ecology of mesic, temperate woody vines
    • In The, Eds. F.E. Putz and H.A. Mooney. Cambridge University Press, Cambridge, pp
    • Teramura, A.H., W.G. Gold and I.N. Forseth. 1991. Physiological ecology of mesic, temperate woody vines. In The Biology of Vines. Eds. F.E. Putz and H.A. Mooney. Cambridge University Press, Cambridge, pp 245-285.
    • (1991) Biology of Vines , pp. 245-285
    • Teramura, A.H.1    Gold, W.G.2    Forseth, I.N.3
  • 54
    • 33749428520 scopus 로고    scopus 로고
    • Quantitative estimation of phenotypic plasticity: Bridging the gap between the evolutionary concept and its ecological applications
    • Valladares, F., D. Sanchez and M.A. Zavala. 2006. Quantitative estimation of phenotypic plasticity: bridging the gap between the evolutionary concept and its ecological applications. J. Ecol. 94:1103-1116.
    • (2006) J. Ecol , vol.94 , pp. 1103-1116
    • Valladares, F.1    Sanchez, D.2    Zavala, M.A.3


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