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Volumn 1, Issue 4, 2009, Pages 263-272

Spatiotemporal changes in the genetic diversity in French bloom-forming populations of the toxic cyanobacterium, Microcystis aeruginosa

Author keywords

[No Author keywords available]

Indexed keywords

MICROCYSTIS; MICROCYSTIS AERUGINOSA;

EID: 77954714344     PISSN: None     EISSN: 17582229     Source Type: Journal    
DOI: 10.1111/j.1758-2229.2009.00042.x     Document Type: Article
Times cited : (56)

References (51)
  • 1
    • 0032735310 scopus 로고    scopus 로고
    • A molecular and phenotypic analysis of Nodularia (Cyanobacteria) from the Baltic sea
    • Barker, G.L.A., Hayes, P.K., O'Mahony, S.L., Vacharapiyasophon, P., and Walsby, A.E. (1999) A molecular and phenotypic analysis of Nodularia (Cyanobacteria) from the Baltic sea. J Phycol 35: 931-937.
    • (1999) J Phycol , vol.35 , pp. 931-937
    • Barker, G.L.A.1    Hayes, P.K.2    O'Mahony, S.L.3    Vacharapiyasophon, P.4    Walsby, A.E.5
  • 2
    • 3142703159 scopus 로고    scopus 로고
    • Genetic diversity and distribution of periphytic Synechococcus spp. in biofilms and picoplankton of Lake Constance
    • Becker, S., Kumar Singh, A., Postius, C., Böger, P., and Ernst, A. (2004) Genetic diversity and distribution of periphytic Synechococcus spp. in biofilms and picoplankton of Lake Constance. FEMS Microb Ecol 49: 181-190.
    • (2004) FEMS Microb Ecol , vol.49 , pp. 181-190
    • Becker, S.1    Kumar Singh, A.2    Postius, C.3    Böger, P.4    Ernst, A.5
  • 3
    • 0034749169 scopus 로고    scopus 로고
    • Genetic variability of brasilian strains of the Microcystis aeruginosa complex (cyanobacteria/cyanophyceae) using the phycocyanin intergenic spacer and flanking regions (cpcBA)
    • Bittencourt-Oliveira, M., De Oliveira, M.C., and Bolch, C.J.S. (2001) Genetic variability of brasilian strains of the Microcystis aeruginosa complex (cyanobacteria/cyanophyceae) using the phycocyanin intergenic spacer and flanking regions (cpcBA). J Phycol 37: 810-818.
    • (2001) J Phycol , vol.37 , pp. 810-818
    • Bittencourt-Oliveira, M.1    De Oliveira, M.C.2    Bolch, C.J.S.3
  • 4
    • 0032891849 scopus 로고    scopus 로고
    • Genetic, morphological, and toxicological variation among globally distributed strains of Nodularia (Cyanobacteria)
    • Bolch, C.J.S., Orr, P.T., Jones, G.J., and Blackburn, S.I. (1999) Genetic, morphological, and toxicological variation among globally distributed strains of Nodularia (Cyanobacteria). J Phycol 35: 339-355.
    • (1999) J Phycol , vol.35 , pp. 339-355
    • Bolch, C.J.S.1    Orr, P.T.2    Jones, G.J.3    Blackburn, S.I.4
  • 5
    • 0034993578 scopus 로고    scopus 로고
    • Is the 16S-23S rRNA internal transcribed spacer region a good tool for use in molecular systematics and population genetics? A case study in cyanobacteria
    • Boyer, S.L., Flechtner, V.R., and Johansen, J.R. (2001) Is the 16S-23S rRNA internal transcribed spacer region a good tool for use in molecular systematics and population genetics? A case study in cyanobacteria. Mol Biol Evol 18: 1057-1069.
    • (2001) Mol Biol Evol , vol.18 , pp. 1057-1069
    • Boyer, S.L.1    Flechtner, V.R.2    Johansen, J.R.3
  • 6
    • 0036926698 scopus 로고    scopus 로고
    • Phylogeny and genetic variance in terrestrial Microcoleus (Cyanophyceae) species based on sequence analysis of the 16S rRNA gene and associated 16S-23S ITS region
    • Boyer, S.L., Johansen, J.R., Flechtner, V.R., and Howard, G.L. (2002) Phylogeny and genetic variance in terrestrial Microcoleus (Cyanophyceae) species based on sequence analysis of the 16S rRNA gene and associated 16S-23S ITS region. J Phycol 38: 1222-1235.
    • (2002) J Phycol , vol.38 , pp. 1222-1235
    • Boyer, S.L.1    Johansen, J.R.2    Flechtner, V.R.3    Howard, G.L.4
  • 7
    • 63349100380 scopus 로고    scopus 로고
    • Spatiotemporal changes in the genetic diversity of a bloom-forming Microcystis aeruginosa (cyanobacteria) population
    • Briand, E., Escoffier, N., Straub, C., Sabart, M., Quiblier, C., and Humbert, J.F. (2009) Spatiotemporal changes in the genetic diversity of a bloom-forming Microcystis aeruginosa (cyanobacteria) population. ISME J 3: 419-429.
    • (2009) ISME J , vol.3 , pp. 419-429
    • Briand, E.1    Escoffier, N.2    Straub, C.3    Sabart, M.4    Quiblier, C.5    Humbert, J.F.6
  • 8
    • 0036661754 scopus 로고    scopus 로고
    • Environmental context of Cylindrospermopsis raciborskii (cyanobacteria) blooms in a shallow pond in France
    • Briand, J.F., Robillot, C., Quiblier-Llobéras, C., Humbert, J.F., Couté, A., and Bernard, C. (2002) Environmental context of Cylindrospermopsis raciborskii (cyanobacteria) blooms in a shallow pond in France. Water Res 36: 3183-3192.
    • (2002) Water Res , vol.36 , pp. 3183-3192
    • Briand, J.F.1    Robillot, C.2    Quiblier-Llobéras, C.3    Humbert, J.F.4    Couté, A.5    Bernard, C.6
  • 9
    • 0141626442 scopus 로고    scopus 로고
    • Health hazards for terrestrial vertebrates from toxic cyanobacteria in surface water ecosystems
    • Briand, J.F., Jacquet, S., Bernard, C., and Humbert, J.F. (2003) Health hazards for terrestrial vertebrates from toxic cyanobacteria in surface water ecosystems. Vet Res 34: 361-378.
    • (2003) Vet Res , vol.34 , pp. 361-378
    • Briand, J.F.1    Jacquet, S.2    Bernard, C.3    Humbert, J.F.4
  • 10
    • 1842579705 scopus 로고    scopus 로고
    • Cylindrospermopsis raciborskii invasion at mid-latitudes: selection, wide physiological tolerance or global warming?
    • Briand, J.F., Leboulanger, C., Humbert, J.F., Bernard, C., and Dufour, P. (2004) Cylindrospermopsis raciborskii invasion at mid-latitudes: selection, wide physiological tolerance or global warming? J Phycol 40: 231-238.
    • (2004) J Phycol , vol.40 , pp. 231-238
    • Briand, J.F.1    Leboulanger, C.2    Humbert, J.F.3    Bernard, C.4    Dufour, P.5
  • 11
    • 0030619210 scopus 로고    scopus 로고
    • Trichodesmium a globally significant marine Cyanobacterium
    • Capone, D.G., Zehr, J.P., Paerl, H.W., Bergman, B., and Carpenter, E.J. (1997) Trichodesmium a globally significant marine Cyanobacterium. Science 276: 1221-1229.
    • (1997) Science , vol.276 , pp. 1221-1229
    • Capone, D.G.1    Zehr, J.P.2    Paerl, H.W.3    Bergman, B.4    Carpenter, E.J.5
  • 12
    • 0033771358 scopus 로고    scopus 로고
    • TCS: a computer program to estimate gene genealogies
    • Clement, M., Posada, D., and Crandall, K. (2000) TCS: a computer program to estimate gene genealogies. Mol Ecol 9: 1657-1660.
    • (2000) Mol Ecol , vol.9 , pp. 1657-1660
    • Clement, M.1    Posada, D.2    Crandall, K.3
  • 15
    • 44849133186 scopus 로고    scopus 로고
    • Cryptic diversity of the symbiotic cyanobacterium Synechococcus spongiarum among sponge hosts
    • Erwin, P.M., and Thacker, R.W. (2008) Cryptic diversity of the symbiotic cyanobacterium Synechococcus spongiarum among sponge hosts. Mol Ecol 17: 2937-2947.
    • (2008) Mol Ecol , vol.17 , pp. 2937-2947
    • Erwin, P.M.1    Thacker, R.W.2
  • 16
    • 85007110786 scopus 로고    scopus 로고
    • Arlequin ver. 3.0: an integrated software package for population genetics data analysis
    • Excoffier, L., Laval, G., and Schneider, S. (2005) Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evol Bioinformatics Online 1: 7-50.
    • (2005) Evol Bioinformatics Online , vol.1 , pp. 7-50
    • Excoffier, L.1    Laval, G.2    Schneider, S.3
  • 17
    • 22044455712 scopus 로고    scopus 로고
    • Health risk assessment of cyanobacterial (blue-green algal) toxins in drinking water
    • Falconer, I.R., and Humpage, A.R. (2005) Health risk assessment of cyanobacterial (blue-green algal) toxins in drinking water. Int J Environ Res Public Health 2: 43-50.
    • (2005) Int J Environ Res Public Health , vol.2 , pp. 43-50
    • Falconer, I.R.1    Humpage, A.R.2
  • 18
    • 13544254299 scopus 로고    scopus 로고
    • Genetic diversity of Cylindrospermopsis strains (Cyanobacteria) isolated from four continents
    • Gugger, M., Molica, R., Le Berre, B., Dufour, P., Bernard, C., and Humbert, J.F. (2005) Genetic diversity of Cylindrospermopsis strains (Cyanobacteria) isolated from four continents. Appl Environ Microbiol 71: 1097-1100.
    • (2005) Appl Environ Microbiol , vol.71 , pp. 1097-1100
    • Gugger, M.1    Molica, R.2    Le Berre, B.3    Dufour, P.4    Bernard, C.5    Humbert, J.F.6
  • 19
    • 45849101687 scopus 로고    scopus 로고
    • Genetic characterization of Cylindrospermopsis raciborskii (Nostocales, Cyanobacteria) isolates from Africa and Europe
    • Haande, S., Rohrlack, T., Ballot, A., Roberg, K., Skulberg, R., Beck, M., and Wiedner, C. (2008) Genetic characterization of Cylindrospermopsis raciborskii (Nostocales, Cyanobacteria) isolates from Africa and Europe. Harmful Algae 7: 692-701.
    • (2008) Harmful Algae , vol.7 , pp. 692-701
    • Haande, S.1    Rohrlack, T.2    Ballot, A.3    Roberg, K.4    Skulberg, R.5    Beck, M.6    Wiedner, C.7
  • 20
    • 34748886657 scopus 로고    scopus 로고
    • PAST: paleontological statistics software package for education and data analysis
    • Hammer, Ø., Harper, D.A.T., and Ryan, P.D. (2001) PAST: paleontological statistics software package for education and data analysis. Palaeontol Electron 4: 9 pp.
    • (2001) Palaeontol Electron , vol.4 , pp. 9
    • Hammer, Ø.1    Harper, D.A.T.2    Ryan, P.D.3
  • 22
    • 0031413707 scopus 로고    scopus 로고
    • Genetic diversity within Baltic Sea populations of Nodularia (cyanobacteria)
    • Hayes, P.K., and Barker, G.L.A. (1997) Genetic diversity within Baltic Sea populations of Nodularia (cyanobacteria). J Phycol 33: 919-923.
    • (1997) J Phycol , vol.33 , pp. 919-923
    • Hayes, P.K.1    Barker, G.L.A.2
  • 23
    • 0032814698 scopus 로고    scopus 로고
    • Species dynamic in phytoplankton blooms: incomplete mixing and competition for light
    • Huisman, J., van Oostveen, P., and Weissing, F.J. (1999) Species dynamic in phytoplankton blooms: incomplete mixing and competition for light. Am Nat 154: 46-48.
    • (1999) Am Nat , vol.154 , pp. 46-48
    • Huisman, J.1    van Oostveen, P.2    Weissing, F.J.3
  • 24
    • 24344460536 scopus 로고    scopus 로고
    • Genetic diversity in Microcystis populations of a French storage reservoir assessed by sequencing of the 16S-23S rRNA Intergenic Spacer
    • Humbert, J.F., Duris-Latour, D., Le Berre, B., Giraudet, H., and Salençon, M.J. (2005) Genetic diversity in Microcystis populations of a French storage reservoir assessed by sequencing of the 16S-23S rRNA Intergenic Spacer. Microb Ecol 49: 308-314.
    • (2005) Microb Ecol , vol.49 , pp. 308-314
    • Humbert, J.F.1    Duris-Latour, D.2    Le Berre, B.3    Giraudet, H.4    Salençon, M.J.5
  • 25
    • 0242405735 scopus 로고    scopus 로고
    • High resolution differentiation of Cyanobacteria by using rRNA-Internal Transcribed Spacer denaturing gradient gel electrophoresis
    • Janse, I., Meima, M., Kardinaal, W.E.A., and Zwart, G. (2003) High resolution differentiation of Cyanobacteria by using rRNA-Internal Transcribed Spacer denaturing gradient gel electrophoresis. Appl Environ Microbiol 69: 6634-6643.
    • (2003) Appl Environ Microbiol , vol.69 , pp. 6634-6643
    • Janse, I.1    Meima, M.2    Kardinaal, W.E.A.3    Zwart, G.4
  • 26
    • 3242816323 scopus 로고    scopus 로고
    • Toxic and non-toxic Microcystis colonies in natural populations can be differentiated on the basis of rRNA gene internal transcribed spacer diversity
    • Janse, I., Kardinaal, W.E.A., Meima, M., Fastner, J., Visser, P.M., and Zwart, G. (2004) Toxic and non-toxic Microcystis colonies in natural populations can be differentiated on the basis of rRNA gene internal transcribed spacer diversity. Appl Environ Microbiol 70: 3979-3987.
    • (2004) Appl Environ Microbiol , vol.70 , pp. 3979-3987
    • Janse, I.1    Kardinaal, W.E.A.2    Meima, M.3    Fastner, J.4    Visser, P.M.5    Zwart, G.6
  • 29
    • 0027871516 scopus 로고
    • Growth, production and losses of phytoplankton in the lowland river Spree. I. Population dynamics
    • Köhler, J. (1993) Growth, production and losses of phytoplankton in the lowland river Spree. I. Population dynamics. J Plankton Res 15: 335-349.
    • (1993) J Plankton Res , vol.15 , pp. 335-349
    • Köhler, J.1
  • 30
    • 13544254092 scopus 로고    scopus 로고
    • Phenotype diversity of the cyanoprokaryotic genus Cylindrospermopsis (Nostocales); review 2002
    • Komarek, J., and Komarkova, J. (2003) Phenotype diversity of the cyanoprokaryotic genus Cylindrospermopsis (Nostocales); review 2002. Czech Phycol 3: 1-30.
    • (2003) Czech Phycol , vol.3 , pp. 1-30
    • Komarek, J.1    Komarkova, J.2
  • 31
    • 0036840327 scopus 로고    scopus 로고
    • Diversity of Aphanizomenon flos-aquae (Cyanobacterium) populations along a Baltic Sea salinity gradient
    • Laamanen, M.J., Forsström, L., and Sivonen, K. (2002) Diversity of Aphanizomenon flos-aquae (Cyanobacterium) populations along a Baltic Sea salinity gradient. Appl Environ Microbiol 68: 5296-5303.
    • (2002) Appl Environ Microbiol , vol.68 , pp. 5296-5303
    • Laamanen, M.J.1    Forsström, L.2    Sivonen, K.3
  • 32
    • 1342330322 scopus 로고    scopus 로고
    • Méthode d'échantillonnage adaptée aux Cyanobactéries coloniales en milieu lacustre. Cas appliqué à Microcystis aeruginosa sur la retenue de Grangent (Loire, France)
    • Latour, D., Giraudet, H., and Salençon, M.J. (2004) Méthode d'échantillonnage adaptée aux Cyanobactéries coloniales en milieu lacustre. Cas appliqué à Microcystis aeruginosa sur la retenue de Grangent (Loire, France). C R Biol 327: 105-113.
    • (2004) C R Biol , vol.327 , pp. 105-113
    • Latour, D.1    Giraudet, H.2    Salençon, M.J.3
  • 33
    • 0000460642 scopus 로고
    • On a rapid technique for planktonic enumeration
    • Legendre, L., and Watt, W.D. (1972) On a rapid technique for planktonic enumeration. Ann Inst Oceanogr Paris 58: 173-177.
    • (1972) Ann Inst Oceanogr Paris , vol.58 , pp. 173-177
    • Legendre, L.1    Watt, W.D.2
  • 34
    • 84944814101 scopus 로고
    • Determination of chlorophyll and phaeopigments: spectrophotometric equations
    • Lorenzen, C.J. (1967) Determination of chlorophyll and phaeopigments: spectrophotometric equations. Limnol Oceanogr 12: 343-346.
    • (1967) Limnol Oceanogr , vol.12 , pp. 343-346
    • Lorenzen, C.J.1
  • 35
    • 0034988535 scopus 로고    scopus 로고
    • Quantifying potential benefits to Microcystis aeruginosa through disentrainment by buoyancy within an embayment of a freshwater river
    • Mitrovic, S.M., Bowling, L.C., and Buckney, R.T. (2001) Quantifying potential benefits to Microcystis aeruginosa through disentrainment by buoyancy within an embayment of a freshwater river. J Fresh Ecol 16: 151-157.
    • (2001) J Fresh Ecol , vol.16 , pp. 151-157
    • Mitrovic, S.M.1    Bowling, L.C.2    Buckney, R.T.3
  • 38
    • 0032993989 scopus 로고    scopus 로고
    • Phylogenetic relationships between toxic and non-toxic strains of the genus Microcystis based on 16S to 23S internal transcribed spacer sequence
    • Otsuka, S., Suda, S., Li, R.H., Watanabe, M., Oyaizu, H., Matsumoto, S., and Watanabe, M.M. (1999) Phylogenetic relationships between toxic and non-toxic strains of the genus Microcystis based on 16S to 23S internal transcribed spacer sequence. FEMS Microbiol Lett 172: 15-21.
    • (1999) FEMS Microbiol Lett , vol.172 , pp. 15-21
    • Otsuka, S.1    Suda, S.2    Li, R.H.3    Watanabe, M.4    Oyaizu, H.5    Matsumoto, S.6    Watanabe, M.M.7
  • 39
    • 0000629049 scopus 로고    scopus 로고
    • Cylindrospermopsis raciborskii (Woloszyska) Seenayya et Subba Raju, an expanding, highly adaptive cyanobacterium: worldwide distribution and review of its ecology
    • Padisák, J. (1997) Cylindrospermopsis raciborskii (Woloszyska) Seenayya et Subba Raju, an expanding, highly adaptive cyanobacterium: worldwide distribution and review of its ecology. Arch Hydrobiol Suppl 107: 563-593.
    • (1997) Arch Hydrobiol Suppl , vol.107 , pp. 563-593
    • Padisák, J.1
  • 40
    • 0024234191 scopus 로고
    • Nuisance phytoplankton blooms in coastal, estuarine and inland waters
    • Paerl, H.W. (1988) Nuisance phytoplankton blooms in coastal, estuarine and inland waters. Limnol Oceanogr 33: 823-847.
    • (1988) Limnol Oceanogr , vol.33 , pp. 823-847
    • Paerl, H.W.1
  • 41
    • 41849108104 scopus 로고    scopus 로고
    • Blooms like it hot
    • Paerl, H.W., and Huisman, J. (2008) Blooms like it hot. Science 420: 57-58.
    • (2008) Science , vol.420 , pp. 57-58
    • Paerl, H.W.1    Huisman, J.2
  • 42
    • 0028571375 scopus 로고
    • Cyanophycean blooms in the reservoir of Val Joly (northern France) and their development in downstream rivers
    • Prygiel, J., and Leitao, M. (1994) Cyanophycean blooms in the reservoir of Val Joly (northern France) and their development in downstream rivers. Hydrobiologia 289: 85-96.
    • (1994) Hydrobiologia , vol.289 , pp. 85-96
    • Prygiel, J.1    Leitao, M.2
  • 43
    • 0028573664 scopus 로고
    • The long, the short and the stalled: on the attributes of phytoplankton selected by physical mixing in lakes and rivers
    • Reynolds, C.S. (1994) The long, the short and the stalled: on the attributes of phytoplankton selected by physical mixing in lakes and rivers. Hydrobiologia 289: 9-21.
    • (1994) Hydrobiologia , vol.289 , pp. 9-21
    • Reynolds, C.S.1
  • 44
    • 0028590472 scopus 로고
    • Are phytoplankton dynamics in rivers so different from those in shallow lakes?
    • Reynolds, C.S., Descy, J.P., and Padisak, J. (1994) Are phytoplankton dynamics in rivers so different from those in shallow lakes? Hydrobiologia 289: 1-7.
    • (1994) Hydrobiologia , vol.289 , pp. 1-7
    • Reynolds, C.S.1    Descy, J.P.2    Padisak, J.3
  • 45
    • 0025624621 scopus 로고
    • Successional dynamics of the phytoplankton in the lower part of the river Ebro
    • Sabater, S., and Muñoz, I. (1990) Successional dynamics of the phytoplankton in the lower part of the river Ebro. J Plankton Res 12: 573-592.
    • (1990) J Plankton Res , vol.12 , pp. 573-592
    • Sabater, S.1    Muñoz, I.2
  • 46
    • 0033005732 scopus 로고    scopus 로고
    • Arthrospira (Spirulina) strains from four continents are resolved into only two clusters, based on amplified ribosomal DNA restriction analysis of the internally transcribed spacer
    • Scheldeman, P., Baurain, D., Bouhy, R., Scott, M., Mühling, M., Whitton, B.A., et al. (1999) Arthrospira (Spirulina) strains from four continents are resolved into only two clusters, based on amplified ribosomal DNA restriction analysis of the internally transcribed spacer. FEMS Microbiol Lett 172: 213-222.
    • (1999) FEMS Microbiol Lett , vol.172 , pp. 213-222
    • Scheldeman, P.1    Baurain, D.2    Bouhy, R.3    Scott, M.4    Mühling, M.5    Whitton, B.A.6
  • 47
    • 0347364879 scopus 로고    scopus 로고
    • BASIC: Baltic Sea cyanobacteria. An investigation of the structure and dynamics of water blooms of cyanobacteria in the Baltic Sea - responses to a changing environment
    • Stal, L.J., Albertano, P., Bergman, B., von Bröckel, K., Gallon, J.R., Hayes, P.K., et al. (2003) BASIC: Baltic Sea cyanobacteria. An investigation of the structure and dynamics of water blooms of cyanobacteria in the Baltic Sea - responses to a changing environment. Cont Shelf Res 23: 1695-1714.
    • (2003) Cont Shelf Res , vol.23 , pp. 1695-1714
    • Stal, L.J.1    Albertano, P.2    Bergman, B.3    von Bröckel, K.4    Gallon, J.R.5    Hayes, P.K.6
  • 48
    • 34547781750 scopus 로고    scopus 로고
    • MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0
    • Tamura, K., Dudley, J., Nei, M., and Kumar, S. (2007) MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0. Mol Biol Evol 24: 1596-1599.
    • (2007) Mol Biol Evol , vol.24 , pp. 1596-1599
    • Tamura, K.1    Dudley, J.2    Nei, M.3    Kumar, S.4
  • 49
    • 0001878986 scopus 로고    scopus 로고
    • ADE-4: a multivariate analysis and graphical display software
    • Thioulouse, J., Chessel, D., Dolédec, S., and Olivier, J.M. (1997) ADE-4: a multivariate analysis and graphical display software. Stat Comput 7: 75-83.
    • (1997) Stat Comput , vol.7 , pp. 75-83
    • Thioulouse, J.1    Chessel, D.2    Dolédec, S.3    Olivier, J.M.4
  • 50
    • 34248643130 scopus 로고    scopus 로고
    • Climate change affects timing and size of populations of an invasive cyanobacterium in temperate regions
    • Wiedner, C., Rücker, J., Brüggemann, R., and Nixdorf, B. (2007) Climate change affects timing and size of populations of an invasive cyanobacterium in temperate regions. Oecologia 152: 473-484.
    • (2007) Oecologia , vol.152 , pp. 473-484
    • Wiedner, C.1    Rücker, J.2    Brüggemann, R.3    Nixdorf, B.4


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