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Volumn 3, Issue 10, 2008, Pages

Glucose uptake and its effect on gene expression in Prochlorococcus

Author keywords

[No Author keywords available]

Indexed keywords

CARBON; GLUCOSE; GLUCOSE 6 PHOSPHATE DEHYDROGENASE; LACTATE DEHYDROGENASE; NITROGEN; PHOSPHOGLUCONATE DEHYDROGENASE; PROTEIN RNPB; RIBONUCLEASE P; UNCLASSIFIED DRUG;

EID: 55349114753     PISSN: None     EISSN: 19326203     Source Type: Journal    
DOI: 10.1371/journal.pone.0003416     Document Type: Article
Times cited : (55)

References (56)
  • 1
    • 0024265562 scopus 로고
    • A novel free living prochlorophyte abundant in the oceanic euphotic zone
    • Chisholm SW, Olson RJ, Zeuler ER, Goerieke R, Waterbury JB, et al. (1988) A novel free living prochlorophyte abundant in the oceanic euphotic zone. Nature 334: 340-343.
    • (1988) Nature , vol.334 , pp. 340-343
    • Chisholm, S.W.1    Olson, R.J.2    Zeuler, E.R.3    Goerieke, R.4    Waterbury, J.B.5
  • 3
    • 0038791901 scopus 로고    scopus 로고
    • The photosynthetic apparatus of chlorophyll b- and d-containing oxyphotobacteria
    • Larkum AW, Douglas S, Raven JA, eds, Dordrecht: Kluwer Academic Publishers. pp
    • Partensky F, Garczarek L (2003) The photosynthetic apparatus of chlorophyll b- and d-containing oxyphotobacteria. In: Larkum AW, Douglas S, Raven JA, eds. Photosynthesis in Algae. Dordrecht: Kluwer Academic Publishers. pp 29-62.
    • (2003) Photosynthesis in Algae , pp. 29-62
    • Partensky, F.1    Garczarek, L.2
  • 4
    • 28044436397 scopus 로고    scopus 로고
    • Accelerated evolution associated to genome reduction in a free-living prokaryote
    • Dufresne A, Garczarek L, Partensky F (2005) Accelerated evolution associated to genome reduction in a free-living prokaryote. Genome Biology 6: R14.
    • (2005) Genome Biology , vol.6
    • Dufresne, A.1    Garczarek, L.2    Partensky, F.3
  • 6
    • 10344237544 scopus 로고    scopus 로고
    • Streamlined regulation and gene loss as adaptive mechanisms in Prochlorococcus for optimized nitrogen utilization in oligotrophic environments
    • García-Fernández JM, Tandeau de Marsac N, Diez J (2004) Streamlined regulation and gene loss as adaptive mechanisms in Prochlorococcus for optimized nitrogen utilization in oligotrophic environments. Microbiology and Molecular Biology Reviews 68: 630-638.
    • (2004) Microbiology and Molecular Biology Reviews , vol.68 , pp. 630-638
    • García-Fernández, J.M.1    Tandeau de Marsac, N.2    Diez, J.3
  • 7
    • 0042878464 scopus 로고    scopus 로고
    • Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche differentiation
    • Rocap G, Larimer FW, Lamerdin J, Malfatti S, Chain P, et al. (2003) Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche differentiation. Nature 424: 1042-1047.
    • (2003) Nature , vol.424 , pp. 1042-1047
    • Rocap, G.1    Larimer, F.W.2    Lamerdin, J.3    Malfatti, S.4    Chain, P.5
  • 8
    • 37749041470 scopus 로고    scopus 로고
    • Patterns and implications of gene gain and loss in the evolution of Prochlorococcus. PLoS
    • Kettler GC, Martiny AC, Huang K, Zucker J, Coleman ML, et al. (2007) Patterns and implications of gene gain and loss in the evolution of Prochlorococcus. PLoS Genetics 3: 2515-2528.
    • (2007) Genetics , vol.3 , pp. 2515-2528
    • Kettler, G.C.1    Martiny, A.C.2    Huang, K.3    Zucker, J.4    Coleman, M.L.5
  • 10
    • 8144219976 scopus 로고    scopus 로고
    • Depth related amino acid uptake by Prochlorococcus cyanobacteria in the Southern Athlantic tropica gyre
    • Zubkov MV, Tarran GA, Fuchs BM (2004) Depth related amino acid uptake by Prochlorococcus cyanobacteria in the Southern Athlantic tropica gyre. FEMS Microbiology Ecology 50: 153-161.
    • (2004) FEMS Microbiology Ecology , vol.50 , pp. 153-161
    • Zubkov, M.V.1    Tarran, G.A.2    Fuchs, B.M.3
  • 11
    • 27844479121 scopus 로고    scopus 로고
    • Amino acid uptake of Prochlorococcus spp. in surface waters across the South Atlantic Subtropical Front
    • Zubkov MV, Tarran GA (2005) Amino acid uptake of Prochlorococcus spp. in surface waters across the South Atlantic Subtropical Front. Aquatic Microbial Ecology 40: 241-249.
    • (2005) Aquatic Microbial Ecology , vol.40 , pp. 241-249
    • Zubkov, M.V.1    Tarran, G.A.2
  • 12
    • 0037313141 scopus 로고    scopus 로고
    • High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to their dominance in oligotrophic oceanic waters
    • Zubkov MV, Fuchs BM, Tarran GA, Burkill PH, Amann R (2003) High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to their dominance in oligotrophic oceanic waters. Applied and Environmental Microbiology 69: 1299-1304.
    • (2003) Applied and Environmental Microbiology , vol.69 , pp. 1299-1304
    • Zubkov, M.V.1    Fuchs, B.M.2    Tarran, G.A.3    Burkill, P.H.4    Amann, R.5
  • 13
    • 36849006422 scopus 로고    scopus 로고
    • Light enhanced amino acid uptake by dominant bacterioplankton groups in surface waters of the Atlantic Ocean
    • Mary I, Tarran GA, Warwick PE, Terry MJ, Scanlan DJ, et al. (2008) Light enhanced amino acid uptake by dominant bacterioplankton groups in surface waters of the Atlantic Ocean. FEMS Microbiol Ecol 63: 36-45.
    • (2008) FEMS Microbiol Ecol , vol.63 , pp. 36-45
    • Mary, I.1    Tarran, G.A.2    Warwick, P.E.3    Terry, M.J.4    Scanlan, D.J.5
  • 14
    • 33750470072 scopus 로고    scopus 로고
    • Dimethylsulfoniopropionate uptake by marine phytoplankton
    • Vila-Costa M, Simo R, Harada H, Gasol JM, Slezak D, et al. (2006) Dimethylsulfoniopropionate uptake by marine phytoplankton. Science 314: 652-654.
    • (2006) Science , vol.314 , pp. 652-654
    • Vila-Costa, M.1    Simo, R.2    Harada, H.3    Gasol, J.M.4    Slezak, D.5
  • 15
    • 0029812956 scopus 로고    scopus 로고
    • Concentrations and uptake of neutral monosaccharides along 140°W in the equatorial Pacific: Contribution of glucose to heterotrophic bacterial activity and the DOM flux
    • Rich JH, Ducklow HW, Kirchman DL (1996) Concentrations and uptake of neutral monosaccharides along 140°W in the equatorial Pacific: contribution of glucose to heterotrophic bacterial activity and the DOM flux. Limnology and Oceanography 41: 595-604.
    • (1996) Limnology and Oceanography , vol.41 , pp. 595-604
    • Rich, J.H.1    Ducklow, H.W.2    Kirchman, D.L.3
  • 16
    • 84986759416 scopus 로고
    • Size distribution and activity of marine microheterotrophs
    • Azam F, Hodson RE (1977) Size distribution and activity of marine microheterotrophs. Limnology and Oceanography 22: 492-501.
    • (1977) Limnology and Oceanography , vol.22 , pp. 492-501
    • Azam, F.1    Hodson, R.E.2
  • 18
    • 0001318595 scopus 로고
    • Multiphasic kinetics for D-glucose uptake by assemblages of natural marine-bacteria
    • Azam F, Hodson RE (1981) Multiphasic kinetics for D-glucose uptake by assemblages of natural marine-bacteria. Marine Ecology-Progress Series 6: 213-222.
    • (1981) Marine Ecology-Progress Series , vol.6 , pp. 213-222
    • Azam, F.1    Hodson, R.E.2
  • 19
    • 84983881231 scopus 로고
    • Steady-State and Chemostat in Ecology
    • Jannasch HW (1974) Steady-State and Chemostat in Ecology. Limnology and Oceanography 19: 716-720.
    • (1974) Limnology and Oceanography , vol.19 , pp. 716-720
    • Jannasch, H.W.1
  • 20
    • 0005174212 scopus 로고
    • On the production of particulate organic carbon by heterotrophic processes in sea water
    • Parsons TR, Strickland JDH (1961) On the production of particulate organic carbon by heterotrophic processes in sea water. Deep-Sea Research 8: 211-222.
    • (1961) Deep-Sea Research , vol.8 , pp. 211-222
    • Parsons, T.R.1    Strickland, J.D.H.2
  • 22
    • 15244361931 scopus 로고    scopus 로고
    • Pleiotropic effect of a histidine kinase on carbohydrate metabolism in Synechocystis sp. strain PCC 6803 and its requirement for heterotrophic growth
    • Singh AK, Sherman LA (2005) Pleiotropic effect of a histidine kinase on carbohydrate metabolism in Synechocystis sp. strain PCC 6803 and its requirement for heterotrophic growth. Journal of Bacteriology 187: 2368-2376.
    • (2005) Journal of Bacteriology , vol.187 , pp. 2368-2376
    • Singh, A.K.1    Sherman, L.A.2
  • 24
    • 0021747077 scopus 로고
    • Effects of D-erythrose on nitrogenase activity in whole filaments of Anabaena sp. strain 7120
    • Privalle LS (1984) Effects of D-erythrose on nitrogenase activity in whole filaments of Anabaena sp. strain 7120. Journal of Bacteriology 160: 794-796.
    • (1984) Journal of Bacteriology , vol.160 , pp. 794-796
    • Privalle, L.S.1
  • 25
    • 0033819097 scopus 로고    scopus 로고
    • 2-containing cyanobacterium (Oxyphotobacteria). International Journal of Systematic and Evolutionary Microbiology 50: 1833-1847.
    • 2-containing cyanobacterium (Oxyphotobacteria). International Journal of Systematic and Evolutionary Microbiology 50: 1833-1847.
  • 26
    • 0025801445 scopus 로고
    • Light-activated heterotrophic growth of the cyanobacterium Synechocystis sp. strain PCC 6803: A blue-light-requiring process
    • Anderson SL, McIntosh L (1991) Light-activated heterotrophic growth of the cyanobacterium Synechocystis sp. strain PCC 6803: a blue-light-requiring process. Journal of Bacteriology 173: 2761-2767.
    • (1991) Journal of Bacteriology , vol.173 , pp. 2761-2767
    • Anderson, S.L.1    McIntosh, L.2
  • 27
    • 34250455512 scopus 로고
    • Photoheterotrophy and chemoheterotrophy among unicellular blue-green algae
    • Rippka R. (1972) Photoheterotrophy and chemoheterotrophy among unicellular blue-green algae. Archives of Microbiology 87: 93-98.
    • (1972) Archives of Microbiology , vol.87 , pp. 93-98
    • Rippka, R.1
  • 28
    • 4444311139 scopus 로고
    • Uptake and Utilization of Sugar Phosphates by Anabaenas-Flos-Aquae
    • Rubin PM, Zetooney E, Mcgowan RE (1977) Uptake and Utilization of Sugar Phosphates by Anabaenas-Flos-Aquae. Plant Physiology 60: 407-411.
    • (1977) Plant Physiology , vol.60 , pp. 407-411
    • Rubin, P.M.1    Zetooney, E.2    Mcgowan, R.E.3
  • 29
    • 34548512226 scopus 로고    scopus 로고
    • Light-stimulated bacterial production and amino acid assimilation by cyanobacteria and other microbes in the North Atlantic Ocean
    • Michelou VK, Cottrell MT, Kirchman DI. (2007) Light-stimulated bacterial production and amino acid assimilation by cyanobacteria and other microbes in the North Atlantic Ocean. Applied and Environmental Microbiology 73: 5539-5546.
    • (2007) Applied and Environmental Microbiology , vol.73 , pp. 5539-5546
    • Michelou, V.K.1    Cottrell, M.T.2    Kirchman, D.I.3
  • 30
  • 31
    • 14644391543 scopus 로고    scopus 로고
    • Nitrogen assimilarion and nitrogen control in cyanobacteria
    • Flores E, Herrero A (2005) Nitrogen assimilarion and nitrogen control in cyanobacteria. Biochemical Society Transactions 33: 164-167.
    • (2005) Biochemical Society Transactions , vol.33 , pp. 164-167
    • Flores, E.1    Herrero, A.2
  • 33
    • 0028224920 scopus 로고
    • Molecular mechanism for the operation of nitrogen control in cyanobacteria
    • Luque I, Flores E, Herrero A (1994) Molecular mechanism for the operation of nitrogen control in cyanobacteria. EMBO J 13: 2862-2869.
    • (1994) EMBO J , vol.13 , pp. 2862-2869
    • Luque, I.1    Flores, E.2    Herrero, A.3
  • 35
    • 9644258967 scopus 로고    scopus 로고
    • Adaptive mechanisms of the nitrogen and carbon assimilatory pathways in the marine cyanobacteria Prochlorococcus
    • García-Fernández JM, Diez J (2004) Adaptive mechanisms of the nitrogen and carbon assimilatory pathways in the marine cyanobacteria Prochlorococcus. Research in Microbiology 155: 795-802.
    • (2004) Research in Microbiology , vol.155 , pp. 795-802
    • García-Fernández, J.M.1    Diez, J.2
  • 36
    • 36248951580 scopus 로고    scopus 로고
    • Transcriptional regulation of the respiratory genes in the cyanobacterium Synechocystis sp. PCC 6803 during the early response to glucose feeding
    • Lee S, Ryu J-Y, Kim SY, Jeon J-H, Song JY, et al. (2007) Transcriptional regulation of the respiratory genes in the cyanobacterium Synechocystis sp. PCC 6803 during the early response to glucose feeding. Plant Physiology 145: 1018-1030.
    • (2007) Plant Physiology , vol.145 , pp. 1018-1030
    • Lee, S.1    Ryu, J.-Y.2    Kim, S.Y.3    Jeon, J.-H.4    Song, J.Y.5
  • 37
    • 0014491209 scopus 로고
    • The incomplete tricarboxylic acid cycle in the blue-green alga Anabaena variabilis
    • Pearce J, Leach CK, Carr NG (1969) The incomplete tricarboxylic acid cycle in the blue-green alga Anabaena variabilis. Journal of General Microbiology 55: 371-378.
    • (1969) Journal of General Microbiology , vol.55 , pp. 371-378
    • Pearce, J.1    Leach, C.K.2    Carr, N.G.3
  • 38
    • 0002812776 scopus 로고
    • Assimilatory nitrogen metabolism and its regulation
    • Bryant DA, ed, Dordrecht: Kluwer Academic Publishers. pp
    • Flores E, Herrero A (1994) Assimilatory nitrogen metabolism and its regulation. In: Bryant DA, ed. The molecular biology of cyanobacteria. Dordrecht: Kluwer Academic Publishers. pp 487-517.
    • (1994) The molecular biology of cyanobacteria , pp. 487-517
    • Flores, E.1    Herrero, A.2
  • 39
    • 41149164685 scopus 로고    scopus 로고
    • Differential microbial uptake of dissolved amino acids and amino sugars in surface waters of the Atlantic Ocean
    • Zubkov MV, Tarran GA, Mary I, Fuchs BM (2008) Differential microbial uptake of dissolved amino acids and amino sugars in surface waters of the Atlantic Ocean. Journal of Plakton Research 30: 211-220.
    • (2008) Journal of Plakton Research , vol.30 , pp. 211-220
    • Zubkov, M.V.1    Tarran, G.A.2    Mary, I.3    Fuchs, B.M.4
  • 41
    • 13444311048 scopus 로고    scopus 로고
    • Dynamics of community structure and phosphate status of picocyanobacterial populations in the Gulf of Aqaba, Red Sea
    • Fuller NJ, West NJ, Marie D, Yallop M, Rivlin T, et al. (2005) Dynamics of community structure and phosphate status of picocyanobacterial populations in the Gulf of Aqaba, Red Sea. Limnology and Oceanography 50: 363-375.
    • (2005) Limnology and Oceanography , vol.50 , pp. 363-375
    • Fuller, N.J.1    West, N.J.2    Marie, D.3    Yallop, M.4    Rivlin, T.5
  • 42
    • 0034096812 scopus 로고    scopus 로고
    • A novel niche for Prochlorococcus sp. in low-light suboxic environments in the Arabian Sea and the Eastern Tropical North Pacific
    • Goericke R, Olson RJ, Shalapyonok A (2000) A novel niche for Prochlorococcus sp. in low-light suboxic environments in the Arabian Sea and the Eastern Tropical North Pacific. Deep-Sea Research 47: 1183-1205.
    • (2000) Deep-Sea Research , vol.47 , pp. 1183-1205
    • Goericke, R.1    Olson, R.J.2    Shalapyonok, A.3
  • 43
    • 0032775237 scopus 로고    scopus 로고
    • Energetics and Growth-Kinetics of a Deep Prochlorococcus spp. Population in the Arabian-Sea
    • Johnson Z, Landry ML, Bidigare RR, Brown SL, Campbell L, et al. (1999) Energetics and Growth-Kinetics of a Deep Prochlorococcus spp. Population in the Arabian-Sea, Deep Sea Research Part II 46: 1719-1743.
    • (1999) Deep Sea Research Part II , vol.46 , pp. 1719-1743
    • Johnson, Z.1    Landry, M.L.2    Bidigare, R.R.3    Brown, S.L.4    Campbell, L.5
  • 44
    • 0002759409 scopus 로고    scopus 로고
    • Uptake and regeneration of inorganic nutrients by marine heterotrophic bacteria
    • Kirchman DL, ed, New York: Wiley-Liss Inc. pp
    • Kirchman DL (2000) Uptake and regeneration of inorganic nutrients by marine heterotrophic bacteria. In: Kirchman DL, ed. Microbial ecology of the oceans. New York: Wiley-Liss Inc. pp 261-288.
    • (2000) Microbial ecology of the oceans , pp. 261-288
    • Kirchman, D.L.1
  • 45
    • 0031429935 scopus 로고    scopus 로고
    • High bacterial production, uptake and concentrations of dissolved organic matter in the Central Arctic Ocean
    • Rich J, Gosselin M, Sherr E, Sherr B, Kirchman DL (1997) High bacterial production, uptake and concentrations of dissolved organic matter in the Central Arctic Ocean. Deep-Sea Research II 44: 1645-1663.
    • (1997) Deep-Sea Research II , vol.44 , pp. 1645-1663
    • Rich, J.1    Gosselin, M.2    Sherr, E.3    Sherr, B.4    Kirchman, D.L.5
  • 46
    • 0036075758 scopus 로고    scopus 로고
    • Utilization of different nitrogen sources by the marine cyanobacteria Prochlorococcus and Synechococcus
    • Moore L, Post AF, Rocap G, Chisholm SW (2002) Utilization of different nitrogen sources by the marine cyanobacteria Prochlorococcus and Synechococcus. Limnology and Oceanography 47: 989-996.
    • (2002) Limnology and Oceanography , vol.47 , pp. 989-996
    • Moore, L.1    Post, A.F.2    Rocap, G.3    Chisholm, S.W.4
  • 47
    • 0002958402 scopus 로고    scopus 로고
    • Symbiosis and mixotrophy among pelagic microorganisms
    • Kirchman DL, ed, Wiley-Liss, Inc
    • Caron DA (2000) Symbiosis and mixotrophy among pelagic microorganisms. In: Kirchman DL, ed. Microbial Ecology of the Oceans: Wiley-Liss, Inc.
    • (2000) Microbial Ecology of the Oceans
    • Caron, D.A.1
  • 48
    • 33845543484 scopus 로고    scopus 로고
    • Evidence for the ubiquity of mixotrophic bacteria in the upper ocean: Implications and consequences
    • Eiler A (2006) Evidence for the ubiquity of mixotrophic bacteria in the upper ocean: implications and consequences. Applied and Environmental Microbiology 72: 7431-7437.
    • (2006) Applied and Environmental Microbiology , vol.72 , pp. 7431-7437
    • Eiler, A.1
  • 49
    • 0343517151 scopus 로고    scopus 로고
    • Ferredoxin-dependent iron-sulfur flavoprotein glutamate synthase (Glsf) from the cyanobacterium Synechocystis sp PCC-6803: Expression and assembly in Escherichia coli
    • Navarro F, Martín-Figueroa E, Candau P, Florencio FJ (2000) Ferredoxin-dependent iron-sulfur flavoprotein glutamate synthase (Glsf) from the cyanobacterium Synechocystis sp PCC-6803: Expression and assembly in Escherichia coli. Archives of Biochemistry and Biophysics 379: 267-276.
    • (2000) Archives of Biochemistry and Biophysics , vol.379 , pp. 267-276
    • Navarro, F.1    Martín-Figueroa, E.2    Candau, P.3    Florencio, F.J.4
  • 50
    • 0024728767 scopus 로고
    • A simple method to preserve oceanic phytoplankton for flow cytometric analyses
    • Vaulot D, Courties C, Partensky F (1989) A simple method to preserve oceanic phytoplankton for flow cytometric analyses. Cytometry 10: 629-635.
    • (1989) Cytometry , vol.10 , pp. 629-635
    • Vaulot, D.1    Courties, C.2    Partensky, F.3
  • 51
    • 33745702614 scopus 로고    scopus 로고
    • Phytoplankton cell counting by flow cytometry
    • Andersen RE, ed, Academic Press
    • Marie D, Simon N, Vaulot D (2005) Phytoplankton cell counting by flow cytometry. In: Andersen RE, ed. Algal Cultural Techniques: Academic Press.
    • (2005) Algal Cultural Techniques
    • Marie, D.1    Simon, N.2    Vaulot, D.3
  • 52
    • 55349092502 scopus 로고    scopus 로고
    • Marie D, Partensky F, Vaulot D, Brussaard C (1999) Enumeration of phytoplankton, bacteria, and viruses in marine samples. In: Robinson JP, ed. Current Protocols in Cytometry. New York: John Wiley & Sons, Inc. pp 11.11.11-11.11.15.
    • Marie D, Partensky F, Vaulot D, Brussaard C (1999) Enumeration of phytoplankton, bacteria, and viruses in marine samples. In: Robinson JP, ed. Current Protocols in Cytometry. New York: John Wiley & Sons, Inc. pp 11.11.11-11.11.15.
  • 53
    • 0030620443 scopus 로고    scopus 로고
    • Enumeration and cell cycle analysis of natural populations of marine picoplankton by flow cytometry using the nucleic acid stain Sybr Green-I
    • Marie D, Partensky F, Jacquet S, Vaulot D (1997) Enumeration and cell cycle analysis of natural populations of marine picoplankton by flow cytometry using the nucleic acid stain Sybr Green-I. Applied and Environmental Microbiology 63: 186-193.
    • (1997) Applied and Environmental Microbiology , vol.63 , pp. 186-193
    • Marie, D.1    Partensky, F.2    Jacquet, S.3    Vaulot, D.4
  • 54
    • 0035348493 scopus 로고    scopus 로고
    • In vivo regulation of glutamine synthetase activity in the marine chlorophyll b-containing cyanobacterium Prochlorococcus sp. strain PCC 9511 (Oxyphotobacteria)
    • El Alaoui S, Diez J, Humanes L, Toribio F, Partensky F, et al. (2001) In vivo regulation of glutamine synthetase activity in the marine chlorophyll b-containing cyanobacterium Prochlorococcus sp. strain PCC 9511 (Oxyphotobacteria). Applied and Environmental Microbiology 67: 2202-2207.
    • (2001) Applied and Environmental Microbiology , vol.67 , pp. 2202-2207
    • El Alaoui, S.1    Diez, J.2    Humanes, L.3    Toribio, F.4    Partensky, F.5
  • 55
    • 17344392308 scopus 로고    scopus 로고
    • A new mathematical model for relative quantification in real-time RT-PCR
    • Pfaffl MW (2001) A new mathematical model for relative quantification in real-time RT-PCR. Nucleic Acids Research 29: E43-45.
    • (2001) Nucleic Acids Research , vol.29
    • Pfaffl, M.W.1


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