메뉴 건너뛰기




Volumn 70, Issue 3, 2009, Pages 402-412

Microbial diversity of boron-rich volcanic hot springs of St. Lucia, Lesser Antilles

Author keywords

Boron; Extreme environments; Geochemistry; Microbial communities; Sulfur springs

Indexed keywords

BORON; RIBOSOME RNA; SULFATE;

EID: 70449106265     PISSN: 01686496     EISSN: 15746941     Source Type: Journal    
DOI: 10.1111/j.1574-6941.2009.00780.x     Document Type: Article
Times cited : (28)

References (57)
  • 1
    • 34249037657 scopus 로고    scopus 로고
    • Chimaereicella boritolerans sp. nov., a boron-tolerant and alkaliphilic bacterium of the family Flavobacteriaceae isolated from soil
    • Ahmed I, Yokota A Fujiwara T (2007a) Chimaereicella boritolerans sp. nov., a boron-tolerant and alkaliphilic bacterium of the family Flavobacteriaceae isolated from soil. Int J Syst Evol Micr 57 : 986 992.
    • (2007) Int J Syst Evol Micr , vol.57 , pp. 986-992
    • Ahmed, I.1    Yokota, A.2    Fujiwara, T.3
  • 2
    • 34248161561 scopus 로고    scopus 로고
    • Gracilibacillus boraciitolerans sp. nov., a highly boron-tolerant and moderately halotolerant bacterium isolated from soil
    • Ahmed I, Yokota A Fujiwara T (2007b) Gracilibacillus boraciitolerans sp. nov., a highly boron-tolerant and moderately halotolerant bacterium isolated from soil. Int J Syst Evol Micr 57 : 796 802.
    • (2007) Int J Syst Evol Micr , vol.57 , pp. 796-802
    • Ahmed, I.1    Yokota, A.2    Fujiwara, T.3
  • 3
    • 33847323533 scopus 로고    scopus 로고
    • A novel highly boron tolerant bacterium, Bacillus boroniphilus sp. nov., isolated from soil, that requires boron for its growth
    • Ahmed I, Yokota A Fujiwara T (2007c) A novel highly boron tolerant bacterium, Bacillus boroniphilus sp. nov., isolated from soil, that requires boron for its growth. Extremophiles 11 : 217 224.
    • (2007) Extremophiles , vol.11 , pp. 217-224
    • Ahmed, I.1    Yokota, A.2    Fujiwara, T.3
  • 4
    • 45149092121 scopus 로고    scopus 로고
    • Are Archaea inherently less diverse than Bacteria in the same environments?
    • Aller JY Kemp PF (2008) Are Archaea inherently less diverse than Bacteria in the same environments? FEMS Microbiol Ecol 65 : 74 87.
    • (2008) FEMS Microbiol Ecol , vol.65 , pp. 74-87
    • Aller, J.Y.1    Kemp, P.F.2
  • 6
    • 0028946084 scopus 로고
    • Phylogenetic identification and in situ detection of individual microbial cells without cultivation
    • Amann RI, Ludwig W Schleifer K (1995) Phylogenetic identification and in situ detection of individual microbial cells without cultivation. Microbiol Rev 59 : 143 169.
    • (1995) Microbiol Rev , vol.59 , pp. 143-169
    • Amann, R.I.1    Ludwig, W.2    Schleifer, K.3
  • 7
    • 18044390542 scopus 로고    scopus 로고
    • A microbiological survey of Montserrat Island hydrothermal biotopes
    • Atkinson T, Cairns S, Cowan DA et al 2000) A microbiological survey of Montserrat Island hydrothermal biotopes. Extremophiles 4 : 305 313.
    • (2000) Extremophiles , vol.4 , pp. 305-313
    • Atkinson, T.1    Cairns, S.2    Cowan, D.A.3    Al, E.4
  • 9
    • 0242384034 scopus 로고    scopus 로고
    • Review and re-analysis of domain-specific 16S primers
    • Baker GC, Smith JJ Cowan DA (2003) Review and re-analysis of domain-specific 16S primers. J Microbiol Meth 55 : 541 555.
    • (2003) J Microbiol Meth , vol.55 , pp. 541-555
    • Baker, G.C.1    Smith, J.J.2    Cowan, D.A.3
  • 10
    • 0028977694 scopus 로고
    • Mercury, arsenic and boron resistant-bacteria isolated from the phyllosphere as positive bioindicators of airborne pollution near geothermal plants
    • Baldi F, Bianco MA Pepi M (1995) Mercury, arsenic and boron resistant-bacteria isolated from the phyllosphere as positive bioindicators of airborne pollution near geothermal plants. Sci Total Environ 164 : 99 107.
    • (1995) Sci Total Environ , vol.164 , pp. 99-107
    • Baldi, F.1    Bianco, M.A.2    Pepi, M.3
  • 11
    • 0028343555 scopus 로고
    • Remarkable archaeal diversity detected in a Yellowstone National Park hot spring environment
    • Barns SM, Fundyga RE, Jeffries MW Pace NR (1994) Remarkable archaeal diversity detected in a Yellowstone National Park hot spring environment. P Natl Acad Sci USA 91 : 1609 1613.
    • (1994) P Natl Acad Sci USA , vol.91 , pp. 1609-1613
    • Barns, S.M.1    Fundyga, R.E.2    Jeffries, M.W.3    Pace, N.R.4
  • 12
    • 33847628378 scopus 로고    scopus 로고
    • Activity of bacteria in water of hot springs from Southern and Central Kamchatskaya geothermal provinces, Kamchatka Peninsula, Russia
    • Belkova NL, Tazaki K, Zakharova JR Parfenova VV (2007) Activity of bacteria in water of hot springs from Southern and Central Kamchatskaya geothermal provinces, Kamchatka Peninsula, Russia. Microbiol Res 162 : 99 107.
    • (2007) Microbiol Res , vol.162 , pp. 99-107
    • Belkova, N.L.1    Tazaki, K.2    Zakharova, J.R.3    Parfenova, V.V.4
  • 13
    • 0036793770 scopus 로고    scopus 로고
    • Microbial composition of near-boiling silica-depositing thermal springs throughout Yellowstone National Park
    • Blank CE, Cady SL Pace NR (2002) Microbial composition of near-boiling silica-depositing thermal springs throughout Yellowstone National Park. Appl Environ Microb 68 : 5123 5135.
    • (2002) Appl Environ Microb , vol.68 , pp. 5123-5135
    • Blank, C.E.1    Cady, S.L.2    Pace, N.R.3
  • 14
    • 0034304278 scopus 로고    scopus 로고
    • Microbiology of acidic, geothermal springs of Montserrat: Environmental rDNA analysis
    • Burton NP Norris PR (2000) Microbiology of acidic, geothermal springs of Montserrat: environmental rDNA analysis. Extremophiles 4 : 315 320.
    • (2000) Extremophiles , vol.4 , pp. 315-320
    • Burton, N.P.1    Norris, P.R.2
  • 16
    • 0037251969 scopus 로고    scopus 로고
    • The Ribosomal Database Project (RDP-II): Previewing a new autoaligner that allows regular updates and the new prokaryotic taxonomy
    • Cole JR, Chai B, Marsh TL et al 2003) The Ribosomal Database Project (RDP-II): previewing a new autoaligner that allows regular updates and the new prokaryotic taxonomy. Nucleic Acids Res 31 : 442 443.
    • (2003) Nucleic Acids Res , vol.31 , pp. 442-443
    • Cole, J.R.1    Chai, B.2    Marsh, T.L.3    Al, E.4
  • 18
    • 0028087236 scopus 로고
    • High-levels of multiple metal resistance and its correlation to antibiotic-resistance in environmental isolates of Acinetobacter
    • Dhakephalkar PK Chopade BA (1994) High-levels of multiple metal resistance and its correlation to antibiotic-resistance in environmental isolates of Acinetobacter. Biometals 7 : 67 74.
    • (1994) Biometals , vol.7 , pp. 67-74
    • Dhakephalkar, P.K.1    Chopade, B.A.2
  • 19
    • 0028568436 scopus 로고
    • Toxicity and carcinogenicity studies of boric acid in male and female B6C3F1 mice
    • Dieter MP (1994) Toxicity and carcinogenicity studies of boric acid in male and female B6C3F1 mice. Environ Health Persp 102 (suppl 7) : 93 97.
    • (1994) Environ Health Persp , vol.102 , Issue.SUPPL. 7 , pp. 93-97
    • Dieter, M.P.1
  • 21
    • 85007110786 scopus 로고    scopus 로고
    • Arlequin ver. 3.0: An integrated software package for population genetics data analysis
    • Excoffier L, Laval G Schneider S (2005) Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evol Bioinform Online 1 : 47 50.
    • (2005) Evol Bioinform Online , vol.1 , pp. 47-50
    • Excoffier, L.1    Laval, G.2    Schneider, S.3
  • 22
    • 11144317346 scopus 로고    scopus 로고
    • Biosignatures and bacterial diversity in hydrothermal deposits of Solfatara Crater, Italy
    • Glamoclija M, Garrel L, Berthon J Lopez-Garcia P (2004) Biosignatures and bacterial diversity in hydrothermal deposits of Solfatara Crater, Italy. Geomicrobiol J 21 : 529 541.
    • (2004) Geomicrobiol J , vol.21 , pp. 529-541
    • Glamoclija, M.1    Garrel, L.2    Berthon, J.3    Lopez-Garcia, P.4
  • 24
    • 0002051540 scopus 로고    scopus 로고
    • BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows
    • Hall TA (1999) BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows. Nucleic Acids Symp Ser 41 : 95 98.
    • (1999) Nucleic Acids Symp ser , vol.41 , pp. 95-98
    • Hall, T.A.1
  • 26
    • 5044240973 scopus 로고    scopus 로고
    • Bellerophon: A program to detect chimeric sequences in multiple sequence alignments
    • Huber T, Faulkner G Hugenholtz P (2004) Bellerophon: a program to detect chimeric sequences in multiple sequence alignments. Bioinformatics 20 : 2317 2319.
    • (2004) Bioinformatics , vol.20 , pp. 2317-2319
    • Huber, T.1    Faulkner, G.2    Hugenholtz, P.3
  • 27
    • 0031912606 scopus 로고    scopus 로고
    • Novel division level bacterial diversity in a Yellowstone hot spring
    • Hugenholtz P, Pitulle C, Hershberger KL Pace NR (1998) Novel division level bacterial diversity in a Yellowstone hot spring. J Bacteriol 180 : 366 376.
    • (1998) J Bacteriol , vol.180 , pp. 366-376
    • Hugenholtz, P.1    Pitulle, C.2    Hershberger, K.L.3    Pace, N.R.4
  • 28
    • 0000752502 scopus 로고
    • Nonconcept of species diversity - Critique and alternative parameters
    • Hurlbert SH (1971) Nonconcept of species diversity - critique and alternative parameters. Ecology 52 : 577 586.
    • (1971) Ecology , vol.52 , pp. 577-586
    • Hurlbert, S.H.1
  • 29
    • 0034053176 scopus 로고    scopus 로고
    • Oxyanion concentrations in eastern Sierra Nevada rivers - 3. Boron, molybdenum, vanadium, and tungsten
    • Johannesson KH, Lyons WB, Graham EY Welch KA (2000) Oxyanion concentrations in eastern Sierra Nevada rivers - 3. Boron, molybdenum, vanadium, and tungsten. Aquat Geochem 6 : 19 46.
    • (2000) Aquat Geochem , vol.6 , pp. 19-46
    • Johannesson, K.H.1    Lyons, W.B.2    Graham, E.Y.3    Welch, K.A.4
  • 30
    • 0034065246 scopus 로고    scopus 로고
    • Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov and Thermithiobacillus gen. nov
    • Kelly DP Wood AP (2000) Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov and Thermithiobacillus gen. nov. Int J Syst Evol Micr 50 : 511 516.
    • (2000) Int J Syst Evol Micr , vol.50 , pp. 511-516
    • Kelly, D.P.1    Wood, A.P.2
  • 31
    • 34247648152 scopus 로고    scopus 로고
    • Effects on environment and agriculture of geothermal wastewater and Boron pollution in great Menderes basin
    • Koc C (2007) Effects on environment and agriculture of geothermal wastewater and Boron pollution in great Menderes basin. Environ Monit Assess 125 : 377 388.
    • (2007) Environ Monit Assess , vol.125 , pp. 377-388
    • Koc, C.1
  • 32
    • 0043058890 scopus 로고
    • Survival of bacteria in extreme environments
    • Kushner DJ (1984) Survival of bacteria in extreme environments. Observatory 104 : 130 131.
    • (1984) Observatory , vol.104 , pp. 130-131
    • Kushner, D.J.1
  • 33
    • 0001857117 scopus 로고
    • 16S/23S rRNA sequencing
    • Stackebrandt, E. Goodfellow, M. eds), pp. John Wiley and Sons. New York.
    • Lane DJ (1991) 16S/23S rRNA sequencing. Nucleic Acid Techniques in Bacterial Systematics (Stackebrandt E Goodfellow M, eds), pp. 115 175. John Wiley and Sons, New York.
    • (1991) Nucleic Acid Techniques in Bacterial Systematics , pp. 115-175
    • Lane, D.J.1
  • 34
    • 0036324293 scopus 로고    scopus 로고
    • Phylogenetic approaches for describing and comparing the diversity of microbial communities
    • Martin AP (2002) Phylogenetic approaches for describing and comparing the diversity of microbial communities. Appl Environ Microb 68 : 3673 3682.
    • (2002) Appl Environ Microb , vol.68 , pp. 3673-3682
    • Martin, A.P.1
  • 36
    • 29544440911 scopus 로고    scopus 로고
    • Geochemistry of Champagne Hot Springs shallow hydrothermal vent field and associated sediments, Dominica, Lesser Antilles
    • McCarthy KT, Pichler T Price RE (2005) Geochemistry of Champagne Hot Springs shallow hydrothermal vent field and associated sediments, Dominica, Lesser Antilles. Chem Geol 224 : 55 68.
    • (2005) Chem Geol , vol.224 , pp. 55-68
    • McCarthy, K.T.1    Pichler, T.2    Price, R.E.3
  • 37
    • 33644829921 scopus 로고    scopus 로고
    • Archaeal and bacterial communities in geochemically diverse hot springs of Yellowstone National Park, USA
    • Meyer-Dombard DR, Shock EL Amend JP (2005) Archaeal and bacterial communities in geochemically diverse hot springs of Yellowstone National Park, USA. Geobiology 3 : 211 227.
    • (2005) Geobiology , vol.3 , pp. 211-227
    • Meyer-Dombard, D.R.1    Shock, E.L.2    Amend, J.P.3
  • 38
    • 1542290599 scopus 로고    scopus 로고
    • Experimental studies on New Zealand hot spring sinters: Rates of growth and textural development
    • Mountain BW, Benning LG Boerema JA (2003) Experimental studies on New Zealand hot spring sinters: rates of growth and textural development. Can J Earth Sci 40 : 1643 1667.
    • (2003) Can J Earth Sci , vol.40 , pp. 1643-1667
    • Mountain, B.W.1    Benning, L.G.2    Boerema, J.A.3
  • 39
    • 15344339176 scopus 로고    scopus 로고
    • Hydrogen and energy flow as 'sensed' by molecular genetics
    • Nealson KH (2005) Hydrogen and energy flow as 'sensed' by molecular genetics. P Natl Acad Sci USA 102 : 3889 3890.
    • (2005) P Natl Acad Sci USA , vol.102 , pp. 3889-3890
    • Nealson, K.H.1
  • 40
    • 33751118501 scopus 로고    scopus 로고
    • Subtle changes in rhizosphere microbial community structure in response to increased boron and sodium chloride concentrations
    • Nelson DR Mele PM (2007) Subtle changes in rhizosphere microbial community structure in response to increased boron and sodium chloride concentrations. Soil Biol Biochem 39 : 340 351.
    • (2007) Soil Biol Biochem , vol.39 , pp. 340-351
    • Nelson, D.R.1    Mele, P.M.2
  • 41
    • 34547429414 scopus 로고    scopus 로고
    • Acidianus sulfidivorans sp. nov., an extremely acidophilic, thermophilic archaeon isolated from a solfatara on Lihir Island, Papua New Guinea, and emendation of the genus description
    • Plumb JJ, Haddad CM, Gibson JA Franzmann PD (2007) Acidianus sulfidivorans sp. nov., an extremely acidophilic, thermophilic archaeon isolated from a solfatara on Lihir Island, Papua New Guinea, and emendation of the genus description. Int J Syst Evol Micr 57 : 1418 1423.
    • (2007) Int J Syst Evol Micr , vol.57 , pp. 1418-1423
    • Plumb, J.J.1    Haddad, C.M.2    Gibson, J.A.3    Franzmann, P.D.4
  • 42
    • 0034013150 scopus 로고    scopus 로고
    • Microbial diversity at 83 degrees C in Calcite Springs, Yellowstone National Park: Another environment where the Aquificales and 'Korarchaeota' coexist
    • Reysenbach AL, Ehringer M Hershberger K (2000) Microbial diversity at 83 degrees C in Calcite Springs, Yellowstone National Park: another environment where the Aquificales and 'Korarchaeota' coexist. Extremophiles 4 : 61 67.
    • (2000) Extremophiles , vol.4 , pp. 61-67
    • Reysenbach, A.L.1    Ehringer, M.2    Hershberger, K.3
  • 43
    • 38349108498 scopus 로고    scopus 로고
    • Biologically active compounds of semi-metals
    • Rezanka T Sigler K (2008) Biologically active compounds of semi-metals. Phytochemistry 69 : 585 606.
    • (2008) Phytochemistry , vol.69 , pp. 585-606
    • Rezanka, T.1    Sigler, K.2
  • 44
    • 0141676357 scopus 로고    scopus 로고
    • Correlation between microbiological and chemical parameters of some hydrothermal springs in New Mexico, USA
    • Rzonca B Schulze-Makuch D (2003) Correlation between microbiological and chemical parameters of some hydrothermal springs in New Mexico, USA. J Hydrol 280 : 272 284.
    • (2003) J Hydrol , vol.280 , pp. 272-284
    • Rzonca, B.1    Schulze-Makuch, D.2
  • 46
    • 0028291471 scopus 로고
    • The phylogenetic position of Hydrogenobacter acidophilus based on 16S rRNA sequence analysis
    • Shima S, Yanagi M Saiki H (1994) The phylogenetic position of Hydrogenobacter acidophilus based on 16S rRNA sequence analysis. FEMS Microbiol Lett 119 : 119 122.
    • (1994) FEMS Microbiol Lett , vol.119 , pp. 119-122
    • Shima, S.1    Yanagi, M.2    Saiki, H.3
  • 47
    • 33644788119 scopus 로고    scopus 로고
    • Geochemical and biological diversity of acidic, hot springs in Lassen Volcanic National Park
    • Siering PL, Clarke JM Wilson MS (2006) Geochemical and biological diversity of acidic, hot springs in Lassen Volcanic National Park. Geomicrobiol J 23 : 129 141.
    • (2006) Geomicrobiol J , vol.23 , pp. 129-141
    • Siering, P.L.1    Clarke, J.M.2    Wilson, M.S.3
  • 48
    • 0035012475 scopus 로고    scopus 로고
    • A new ecological adaptation to high sulfide by a Hydrogenobacter sp. growing on sulfur compounds but not on hydrogen
    • Skirnisdottir S, Hreggvidsson GO, Holst O Kristjansson JK (2001) A new ecological adaptation to high sulfide by a Hydrogenobacter sp. growing on sulfur compounds but not on hydrogen. Microbiol Res 156 : 41 47.
    • (2001) Microbiol Res , vol.156 , pp. 41-47
    • Skirnisdottir, S.1    Hreggvidsson, G.O.2    Holst, O.3    Kristjansson, J.K.4
  • 49
    • 0030768026 scopus 로고    scopus 로고
    • The B isotopic composition of arc lavas from Martinique, Lesser Antilles
    • Smith HJ, Leeman WP, Davidson J Spivack AJ (1997) The B isotopic composition of arc lavas from Martinique, Lesser Antilles. Earth Planet Sci Lett 146 : 303 314.
    • (1997) Earth Planet Sci Lett , vol.146 , pp. 303-314
    • Smith, H.J.1    Leeman, W.P.2    Davidson, J.3    Spivack, A.J.4
  • 50
    • 14044264258 scopus 로고    scopus 로고
    • Hydrogen and bioenergetics in the Yellowstone geothermal ecosystem
    • Spear JR, Walker JJ, McCollom TM Pace NR (2005) Hydrogen and bioenergetics in the Yellowstone geothermal ecosystem. P Natl Acad Sci USA 102 : 2555 2560.
    • (2005) P Natl Acad Sci USA , vol.102 , pp. 2555-2560
    • Spear, J.R.1    Walker, J.J.2    McCollom, T.M.3    Pace, N.R.4
  • 51
    • 1842689080 scopus 로고    scopus 로고
    • First survey of fungi in hypersaline soil and water of Mono Lake area (California)
    • Steiman R, Ford L, Ducros V, Lafond JL Guiraud P (2004) First survey of fungi in hypersaline soil and water of Mono Lake area (California). Anton Leeuw Int J G 85 : 69 83.
    • (2004) Anton Leeuw Int J G , vol.85 , pp. 69-83
    • Steiman, R.1    Ford, L.2    Ducros, V.3    Lafond, J.L.4    Guiraud, P.5
  • 52
    • 0034856673 scopus 로고    scopus 로고
    • Empirical relationships between species richness, evenness, and proportional diversity
    • Stirling G Wilsey B (2001) Empirical relationships between species richness, evenness, and proportional diversity. Am Nat 158 : 286 299.
    • (2001) Am Nat , vol.158 , pp. 286-299
    • Stirling, G.1    Wilsey, B.2
  • 53
    • 18444375290 scopus 로고    scopus 로고
    • Shifts in rhizoplane communities of aquatic plants after cadmium exposure
    • Stout LM Nüsslein K (2005) Shifts in rhizoplane communities of aquatic plants after cadmium exposure. Appl Environ Microb 71 : 2484 2492.
    • (2005) Appl Environ Microb , vol.71 , pp. 2484-2492
    • Stout, L.M.1    Nüsslein, K.2
  • 54
    • 0017879383 scopus 로고
    • Plasmid-determined resistance to boron and chromium compounds in Pseudomonas aeruginosa
    • Summers AO Jacoby GA (1978) Plasmid-determined resistance to boron and chromium compounds in Pseudomonas aeruginosa. Antimicrob Agents Ch 13 : 637 640.
    • (1978) Antimicrob Agents Ch , vol.13 , pp. 637-640
    • Summers, A.O.1    Jacoby, G.A.2
  • 55
    • 0034921150 scopus 로고    scopus 로고
    • Hydrogenobacter subterraneus sp. nov., an extremely thermophilic, heterotrophic bacterium unable to grow on hydrogen gas, from deep subsurface geothermal water
    • Takai K, Komatsu T Horikoshi K (2001) Hydrogenobacter subterraneus sp. nov., an extremely thermophilic, heterotrophic bacterium unable to grow on hydrogen gas, from deep subsurface geothermal water. Int J Syst Evol Micr 51 : 1425 1435.
    • (2001) Int J Syst Evol Micr , vol.51 , pp. 1425-1435
    • Takai, K.1    Komatsu, T.2    Horikoshi, K.3
  • 56
    • 34547781750 scopus 로고    scopus 로고
    • MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0
    • Tamura K, Dudley J, Nei M 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
  • 57
    • 0345195995 scopus 로고    scopus 로고
    • Determination of microbial diversity in environmental samples: Pitfalls of PCR-based rRNA analysis
    • von Wintzingerode F, Göbel UB Stackebrandt E (1997) Determination of microbial diversity in environmental samples: pitfalls of PCR-based rRNA analysis. FEMS Microbiol Rev 21 : 213 229.
    • (1997) FEMS Microbiol Rev , vol.21 , pp. 213-229
    • Von Wintzingerode, F.1    Göbel, U.B.2    Stackebrandt, E.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.