메뉴 건너뛰기




Volumn 7, Issue , 2016, Pages 202-209

Identification and characterization of potassium solubilizing bacteria (KSB) from Indo-Gangetic Plains of India

Author keywords

PH dynamics; Potassium solublization; Recycling of waste biotite

Indexed keywords


EID: 84975257260     PISSN: 18788181     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bcab.2016.06.007     Document Type: Article
Times cited : (145)

References (57)
  • 1
    • 0033013689 scopus 로고    scopus 로고
    • Solubilization of phosphates and micronutrients by the plant growth promoting and bacterial fungus Trichoderma harzianum Rifai
    • Altamare C., Norvell W.A., Bjorkman T., Harman G.E. Solubilization of phosphates and micronutrients by the plant growth promoting and bacterial fungus Trichoderma harzianum Rifai. Appl. Environ. Microbiol. 1999, 65:2926-2933.
    • (1999) Appl. Environ. Microbiol. , vol.65 , pp. 2926-2933
    • Altamare, C.1    Norvell, W.A.2    Bjorkman, T.3    Harman, G.E.4
  • 2
    • 84896543040 scopus 로고    scopus 로고
    • Screening of K-solubilizing bacteria (KSB) for plant growth promotional activity
    • Archana D.S., Nandish M.S., Savalagi V.P., Alagawadi A.R. Screening of K-solubilizing bacteria (KSB) for plant growth promotional activity. Bioinfolet 2012, 9(4):627-630.
    • (2012) Bioinfolet , vol.9 , Issue.4 , pp. 627-630
    • Archana, D.S.1    Nandish, M.S.2    Savalagi, V.P.3    Alagawadi, A.R.4
  • 3
    • 85006715510 scopus 로고    scopus 로고
    • Characterization of potassium solubilizing bacteria (KSB) from rhizosphere soil
    • Archana D.S., Nandish M.S., Savalagi V.P., Alagawadi A.R. Characterization of potassium solubilizing bacteria (KSB) from rhizosphere soil. Bioinfolet 2013, 10:248-257.
    • (2013) Bioinfolet , vol.10 , pp. 248-257
    • Archana, D.S.1    Nandish, M.S.2    Savalagi, V.P.3    Alagawadi, A.R.4
  • 4
    • 85006767221 scopus 로고    scopus 로고
    • Importance and application of potassic biofertilizer in Indian agriculture
    • Bahadur I., Meena V.S., Kumar S. Importance and application of potassic biofertilizer in Indian agriculture. Int. Res. J. Biol. Sci. 2014, 3(12):80-85.
    • (2014) Int. Res. J. Biol. Sci. , vol.3 , Issue.12 , pp. 80-85
    • Bahadur, I.1    Meena, V.S.2    Kumar, S.3
  • 6
    • 0342591354 scopus 로고    scopus 로고
    • Microbial destruction of feldspars
    • Bennett P.C., Choi W.J., Rogers J.R. Microbial destruction of feldspars. Miner. Mag. 1998, 8(62A):149-150.
    • (1998) Miner. Mag. , vol.8 , Issue.62 , pp. 149-150
    • Bennett, P.C.1    Choi, W.J.2    Rogers, J.R.3
  • 7
    • 79955441379 scopus 로고    scopus 로고
    • Interactions between Bacillus mucilaginosus and silicate minerals (weathered adamellite and Feldspar): weathering rate, products, and reaction mechanisms
    • Binbin M.O., Bin L. Interactions between Bacillus mucilaginosus and silicate minerals (weathered adamellite and Feldspar): weathering rate, products, and reaction mechanisms. Chin. J. Geochem. 2011, 30:187-192.
    • (2011) Chin. J. Geochem. , vol.30 , pp. 187-192
    • Binbin, M.O.1    Bin, L.2
  • 8
    • 0028184231 scopus 로고
    • +P) fertilization lead to recovery of tree health in a nitrogen stressed Quercus rubra L. stand?
    • +P) fertilization lead to recovery of tree health in a nitrogen stressed Quercus rubra L. stand?. Environ. Pollut. 1994, 85:297-303.
    • (1994) Environ. Pollut. , vol.85 , pp. 297-303
    • Boxman, A.W.1    Cobben, P.L.W.2    Roelofs, J.G.M.3
  • 9
    • 0026071366 scopus 로고
    • Rapid in situ assay for indole-acetic acid production by bacteria immobilized on nitrocellulose membrane
    • Brick J.M., Bostock R.M., Silverstone S.E. Rapid in situ assay for indole-acetic acid production by bacteria immobilized on nitrocellulose membrane. Appl. Environ. Microbiol. 1991, 57:535-538.
    • (1991) Appl. Environ. Microbiol. , vol.57 , pp. 535-538
    • Brick, J.M.1    Bostock, R.M.2    Silverstone, S.E.3
  • 12
    • 0000130569 scopus 로고
    • Multiple ranges and multiple F-tests
    • Duncan D.M. Multiple ranges and multiple F-tests. Biometric 1955, 11:1-42.
    • (1955) Biometric , vol.11 , pp. 1-42
    • Duncan, D.M.1
  • 14
    • 69549146005 scopus 로고    scopus 로고
    • Response of wheat to inoculation with phosphate and potassium mobilizers and organic amendment
    • Girgis M.G.Z. Response of wheat to inoculation with phosphate and potassium mobilizers and organic amendment. Annals Agric. Sci. Ain Shams Univ., Cairo 2006, 51(1):85-100.
    • (2006) Annals Agric. Sci. Ain Shams Univ., Cairo , vol.51 , Issue.1 , pp. 85-100
    • Girgis, M.G.Z.1
  • 15
    • 31644432590 scopus 로고    scopus 로고
    • Variations in hosting beneficial plant associated microorganisms by root (wilt) diseased and field tolerant coconut palms of west coast tall variety
    • Gopal M., Gupta A., Nair V. Variations in hosting beneficial plant associated microorganisms by root (wilt) diseased and field tolerant coconut palms of west coast tall variety. Curr. Sci. 2005, 89:1922-1927.
    • (2005) Curr. Sci. , vol.89 , pp. 1922-1927
    • Gopal, M.1    Gupta, A.2    Nair, V.3
  • 18
    • 33748307593 scopus 로고    scopus 로고
    • Two phosphate and potassium solubilizing bacteria isolated from Tianmu Mountain, Zhejiang, China
    • Hu X., Chen J., Guo J. Two phosphate and potassium solubilizing bacteria isolated from Tianmu Mountain, Zhejiang, China. World J. Microbiol. Biotechnol. 2006, 22:983-990.
    • (2006) World J. Microbiol. Biotechnol. , vol.22 , pp. 983-990
    • Hu, X.1    Chen, J.2    Guo, J.3
  • 19
    • 84975312654 scopus 로고
    • The Rhizosphere, Chichester, UK.
    • Lynch J.M., 1990. The Rhizosphere, Chichester, UK.
    • (1990)
    • Lynch, J.M.1
  • 20
    • 84922353718 scopus 로고    scopus 로고
    • Potassium fertilizer and other materials as countermeasures to reduce radiocesium levels in rice: results of urgent experiments in 2011 responding to the Fukushima Daiichi Nuclear Power Plant accident
    • Kato N., Kihou N., Fujimura S., Ikeba M., Miyazaki N., Saito Y., Eguchi T., Itoh S. Potassium fertilizer and other materials as countermeasures to reduce radiocesium levels in rice: results of urgent experiments in 2011 responding to the Fukushima Daiichi Nuclear Power Plant accident. Soil. Sci. Plant Nutr. 2015, 10.1080/00380768.2014.995584.
    • (2015) Soil. Sci. Plant Nutr.
    • Kato, N.1    Kihou, N.2    Fujimura, S.3    Ikeba, M.4    Miyazaki, N.5    Saito, Y.6    Eguchi, T.7    Itoh, S.8
  • 21
    • 33646519249 scopus 로고    scopus 로고
    • Data inspection using biplots
    • Kohler U., Luniak M. Data inspection using biplots. Stata J. 2005, 5:208-223.
    • (2005) Stata J. , vol.5 , pp. 208-223
    • Kohler, U.1    Luniak, M.2
  • 22
    • 0343183968 scopus 로고    scopus 로고
    • Characterization of high temperature-tolerant rhizobia isolated from Prosopis juliflora grown in alkaline soil
    • Kulkarni S., Nautiyal C.S. Characterization of high temperature-tolerant rhizobia isolated from Prosopis juliflora grown in alkaline soil. J. Gen. Appl. Micro. 1999, 45:213-220.
    • (1999) J. Gen. Appl. Micro. , vol.45 , pp. 213-220
    • Kulkarni, S.1    Nautiyal, C.S.2
  • 24
    • 3242810318 scopus 로고    scopus 로고
    • MEGA3: Integrated software for molecular evolutionary genetics analysis and sequence alignment
    • Kumar S., Tamura K., Nei M. MEGA3: Integrated software for molecular evolutionary genetics analysis and sequence alignment. Brief. Bioinform. 2004, 5:150-163.
    • (2004) Brief. Bioinform. , vol.5 , pp. 150-163
    • Kumar, S.1    Tamura, K.2    Nei, M.3
  • 25
    • 84859192497 scopus 로고    scopus 로고
    • Isolation of Paenibacillus sp. and assessment of its potential for enhancing mineral weathering
    • Liu D., Lian B., Dong H. Isolation of Paenibacillus sp. and assessment of its potential for enhancing mineral weathering. Geomicrobiol. J. 2012, 29:413-421.
    • (2012) Geomicrobiol. J. , vol.29 , pp. 413-421
    • Liu, D.1    Lian, B.2    Dong, H.3
  • 26
    • 84920756818 scopus 로고    scopus 로고
    • A 1961-2010 record of fertilizer use, pesticide application and cereal yields: a review
    • Liu Y., Pan X., Li J. A 1961-2010 record of fertilizer use, pesticide application and cereal yields: a review. Agron. Sustain. Dev. 2015, 35:83-93. 10.1007/s13593-014-0259-9.
    • (2015) Agron. Sustain. Dev. , vol.35 , pp. 83-93
    • Liu, Y.1    Pan, X.2    Li, J.3
  • 27
    • 0001590140 scopus 로고
    • Influence of bacterial sources on indole-3 acetic acid on root elongation of sugarbeet
    • Loper J.E., Scroth M.N. Influence of bacterial sources on indole-3 acetic acid on root elongation of sugarbeet. Phytopathology 1986, 76:386-389.
    • (1986) Phytopathology , vol.76 , pp. 386-389
    • Loper, J.E.1    Scroth, M.N.2
  • 28
    • 84927738698 scopus 로고    scopus 로고
    • Influence of Inceptisol and Alfisol's potassium solubilizing bacteria (KSB) isolates on release of K from waste mica
    • Maurya B.R., Meena V.S., Meena O.P. Influence of Inceptisol and Alfisol's potassium solubilizing bacteria (KSB) isolates on release of K from waste mica. Vegetos 2014, 27(1):181-187.
    • (2014) Vegetos , vol.27 , Issue.1 , pp. 181-187
    • Maurya, B.R.1    Meena, V.S.2    Meena, O.P.3
  • 29
    • 84927751103 scopus 로고    scopus 로고
    • Influence of K- solubilizing bacteria on release of potassium from waste mica
    • Meena O.P., Maurya B.R., Meena V.S. Influence of K- solubilizing bacteria on release of potassium from waste mica. Agric. Sustain. Dev. 2013, 1(1):53-56.
    • (2013) Agric. Sustain. Dev. , vol.1 , Issue.1 , pp. 53-56
    • Meena, O.P.1    Maurya, B.R.2    Meena, V.S.3
  • 30
    • 84939833342 scopus 로고    scopus 로고
    • Isolation of low temperature surviving plant growth-promoting rhizobacteria (PGPR) from pea (Pisum sativum L.) and documentation of their plant growth promoting traits
    • Meena R.K., Singh R.K., Singh N.P., Meena S.K., Meena V.S. Isolation of low temperature surviving plant growth-promoting rhizobacteria (PGPR) from pea (Pisum sativum L.) and documentation of their plant growth promoting traits. Biocatal. Agric. Biotechnol. 2015, 4(4):806-811.
    • (2015) Biocatal. Agric. Biotechnol. , vol.4 , Issue.4 , pp. 806-811
    • Meena, R.K.1    Singh, R.K.2    Singh, N.P.3    Meena, S.K.4    Meena, V.S.5
  • 31
    • 84921388119 scopus 로고    scopus 로고
    • Potassium solubilization by bacterial strain in waste mica
    • Meena V.S., Maurya B.R., Bahadur I. Potassium solubilization by bacterial strain in waste mica. Bangladesh J. Bot. 2014, 43(2):235-237.
    • (2014) Bangladesh J. Bot. , vol.43 , Issue.2 , pp. 235-237
    • Meena, V.S.1    Maurya, B.R.2    Bahadur, I.3
  • 33
    • 84927749818 scopus 로고    scopus 로고
    • Potassium solubilizing rhizobacteria (KSR): isolation, identification, and K-release dynamics from waste mica
    • Meena V.S., Maurya B.R., Verma J.P., Aeron A., Kumar A., Kim K., Bajpai V.K. Potassium solubilizing rhizobacteria (KSR): isolation, identification, and K-release dynamics from waste mica. Ecol. Eng. 2015, 81:340-347.
    • (2015) Ecol. Eng. , vol.81 , pp. 340-347
    • Meena, V.S.1    Maurya, B.R.2    Verma, J.P.3    Aeron, A.4    Kumar, A.5    Kim, K.6    Bajpai, V.K.7
  • 34
    • 84911071880 scopus 로고    scopus 로고
    • Marandu palisadegrass mineral nutrition and production related to nitrogen and potassium supply
    • Megda M.M., Monteiro F.A. Marandu palisadegrass mineral nutrition and production related to nitrogen and potassium supply. J. Plant Nutr. 2015, 38(2):277-294.
    • (2015) J. Plant Nutr. , vol.38 , Issue.2 , pp. 277-294
    • Megda, M.M.1    Monteiro, F.A.2
  • 35
    • 80052847334 scopus 로고    scopus 로고
    • Solubilization of insoluble inorganic phosphates by a novel temperature-, pH-, and salt-tolerant yeast, Rhodotorula sp. PS4, isolated from seabuckthorn rhizosphere, growing in cold desert of Ladakh, India
    • Mundra S., Arora R., Stobdan T. Solubilization of insoluble inorganic phosphates by a novel temperature-, pH-, and salt-tolerant yeast, Rhodotorula sp. PS4, isolated from seabuckthorn rhizosphere, growing in cold desert of Ladakh, India. World J. Micro. Biotechnol. 2011, 27:2387-2396.
    • (2011) World J. Micro. Biotechnol. , vol.27 , pp. 2387-2396
    • Mundra, S.1    Arora, R.2    Stobdan, T.3
  • 36
    • 31644432590 scopus 로고    scopus 로고
    • Variations in hosting beneficial plant associated microorganisms by root (wilt) diseased and field tolerant coconut palms of west coast tall variety
    • Murali A., Gupta, Nair R.V. Variations in hosting beneficial plant associated microorganisms by root (wilt) diseased and field tolerant coconut palms of west coast tall variety. Curr. Sci. 2005, 89:1922-1927.
    • (2005) Curr. Sci. , vol.89 , pp. 1922-1927
    • Murali, A.1    Gupta Nair, R.V.2
  • 37
    • 0032932907 scopus 로고    scopus 로고
    • An efficient microbiological growth medium for screening phosphate solubilizing microorganisms
    • Nautiyal C.S. An efficient microbiological growth medium for screening phosphate solubilizing microorganisms. FEMS Microbiol. Lett. 1999, 170:265-270.
    • (1999) FEMS Microbiol. Lett. , vol.170 , pp. 265-270
    • Nautiyal, C.S.1
  • 38
    • 2442687896 scopus 로고    scopus 로고
    • Isolation and characterization of Citrobacter strain HPC 255 for broad range substrate specificity for chlorophenol
    • Narde G., Kapley A., Purohit H.J. Isolation and characterization of Citrobacter strain HPC 255 for broad range substrate specificity for chlorophenol. Curr. Microbiol. 2004, 48:419-423.
    • (2004) Curr. Microbiol. , vol.48 , pp. 419-423
    • Narde, G.1    Kapley, A.2    Purohit, H.J.3
  • 39
    • 0032077842 scopus 로고    scopus 로고
    • Biomass and nutrient cycling of a highly productive Corsican pine stand on former heath land in northern Belgium
    • Neirynck J., Maddelein D., de Keersmaeker L., Lust N., Muys B. Biomass and nutrient cycling of a highly productive Corsican pine stand on former heath land in northern Belgium. Ann. Des. Sci. For. 1998, 55:389-405.
    • (1998) Ann. Des. Sci. For. , vol.55 , pp. 389-405
    • Neirynck, J.1    Maddelein, D.2    de Keersmaeker, L.3    Lust, N.4    Muys, B.5
  • 40
    • 43849096908 scopus 로고    scopus 로고
    • Kinetics of phosphorus and potassium release from rock phosphate and waste mica enriched compost and their effect on yield and nutrient uptake by wheat (Triticum aestivum)
    • Nishanth D., Biswas D.R. Kinetics of phosphorus and potassium release from rock phosphate and waste mica enriched compost and their effect on yield and nutrient uptake by wheat (Triticum aestivum). Biores Technol. 2008, 99:3342-3353.
    • (2008) Biores Technol. , vol.99 , pp. 3342-3353
    • Nishanth, D.1    Biswas, D.R.2
  • 41
    • 84896547566 scopus 로고    scopus 로고
    • Potassium solubilization by rhizosphere bacteria: influence of nutritional and environmental conditions
    • Parmar P., Sindhu S.S. Potassium solubilization by rhizosphere bacteria: influence of nutritional and environmental conditions. J. Microb. Res. 2013, 3(1):25-31.
    • (2013) J. Microb. Res. , vol.3 , Issue.1 , pp. 25-31
    • Parmar, P.1    Sindhu, S.S.2
  • 42
  • 45
    • 84922505899 scopus 로고    scopus 로고
    • Potassium: a neglected nutrient in global change
    • Sardans J., Penuelas J. Potassium: a neglected nutrient in global change. Global Ecol. Biogeogr. 2015, 10.1111/geb.12259.
    • (2015) Global Ecol. Biogeogr.
    • Sardans, J.1    Penuelas, J.2
  • 46
    • 84866896591 scopus 로고    scopus 로고
    • Stoichiometry of potassium is largely determined by water availability and growth in Catalonian forests
    • Sardans J., Penuelas J., Coll M., Vayreda J., Rivas-Ubach A. Stoichiometry of potassium is largely determined by water availability and growth in Catalonian forests. Funct. Ecol. 2012, 26:1077-1089.
    • (2012) Funct. Ecol. , vol.26 , pp. 1077-1089
    • Sardans, J.1    Penuelas, J.2    Coll, M.3    Vayreda, J.4    Rivas-Ubach, A.5
  • 47
    • 85006769863 scopus 로고    scopus 로고
    • Study on the conditions of potassium release by strain NBT of silicate bacteria. Scientia
    • Sheng X.F., Huang W.Y. Study on the conditions of potassium release by strain NBT of silicate bacteria. Scientia. Agric. Sin. 2002, 35:673-677.
    • (2002) Agric. Sin. , vol.35 , pp. 673-677
    • Sheng, X.F.1    Huang, W.Y.2
  • 48
    • 33645790730 scopus 로고    scopus 로고
    • Solubilization of potassium bearing minerals by a wild type strain of Bacillus edaphicus and its mutants and increased potassium uptake by wheat
    • Sheng X.F., He L.Y. Solubilization of potassium bearing minerals by a wild type strain of Bacillus edaphicus and its mutants and increased potassium uptake by wheat. Can. J. Microbiol. 2006, 52(1):66-72.
    • (2006) Can. J. Microbiol. , vol.52 , Issue.1 , pp. 66-72
    • Sheng, X.F.1    He, L.Y.2
  • 49
    • 58149172168 scopus 로고    scopus 로고
    • Isolation and characterization of silicate mineral-solubilizing Bacillus globisporus Q12 from the surfaces of weathered feldspar
    • Sheng X.F., Zhao F., He L.Y., Qiu G., Chen L. Isolation and characterization of silicate mineral-solubilizing Bacillus globisporus Q12 from the surfaces of weathered feldspar. Can. J. Micro. 2008, 54:1064-1068.
    • (2008) Can. J. Micro. , vol.54 , pp. 1064-1068
    • Sheng, X.F.1    Zhao, F.2    He, L.Y.3    Qiu, G.4    Chen, L.5
  • 50
    • 84932099799 scopus 로고    scopus 로고
    • Can we use maize (Zea mays) rhizobacteria as plant growth promoter?
    • Singh N.P., Singh R.K., Meena V.S., Meena R.K. Can we use maize (Zea mays) rhizobacteria as plant growth promoter?. Vegetos 2015, 28(1):86-99.
    • (2015) Vegetos , vol.28 , Issue.1 , pp. 86-99
    • Singh, N.P.1    Singh, R.K.2    Meena, V.S.3    Meena, R.K.4
  • 51
    • 24944568229 scopus 로고    scopus 로고
    • Solubilization of insoluble inorganic phosphates by a novel salt and pH-tolerant Pantoea agglomerans R-42 isolated from soybean rhizosphere
    • Son H.J., Park G.T., Cha M.S., Heo M.S. Solubilization of insoluble inorganic phosphates by a novel salt and pH-tolerant Pantoea agglomerans R-42 isolated from soybean rhizosphere. Bioresour. Technol. 2006, 97:204-210.
    • (2006) Bioresour. Technol. , vol.97 , pp. 204-210
    • Son, H.J.1    Park, G.T.2    Cha, M.S.3    Heo, M.S.4
  • 52
    • 0030423865 scopus 로고    scopus 로고
    • Rates of feldspar dissolution at pH 3-7 with 0-8 mM oxalic acid
    • Stillings L.L., Drever S.L., Brantley Y.S., Oxburgh R. Rates of feldspar dissolution at pH 3-7 with 0-8 mM oxalic acid. Chem. Geol. 1996, 132:79-90.
    • (1996) Chem. Geol. , vol.132 , pp. 79-90
    • Stillings, L.L.1    Drever, S.L.2    Brantley, Y.S.3    Oxburgh, R.4
  • 53
    • 77953082515 scopus 로고    scopus 로고
    • Solubilization of potassium containing minerals by bacteria and their effect on plant growth
    • Sugumaran P., Janarthanam B. Solubilization of potassium containing minerals by bacteria and their effect on plant growth. World J. Agric. Sci. 2007, 3:350-355.
    • (2007) World J. Agric. Sci. , vol.3 , pp. 350-355
    • Sugumaran, P.1    Janarthanam, B.2
  • 54
    • 84891362782 scopus 로고    scopus 로고
    • Evaluation of plant growth promoting activities of microbial strains and their effect on growth and yield of chickpea (Cicer arietinum L.) in India
    • Verma J.P., Yadav J., Tiwari K.N., Jaiswal D.K. Evaluation of plant growth promoting activities of microbial strains and their effect on growth and yield of chickpea (Cicer arietinum L.) in India. Soil. Biol. Biochem. 2014, 70:33-37.
    • (2014) Soil. Biol. Biochem. , vol.70 , pp. 33-37
    • Verma, J.P.1    Yadav, J.2    Tiwari, K.N.3    Jaiswal, D.K.4
  • 55
    • 84901953952 scopus 로고    scopus 로고
    • Isolation and identification of potassium-solubilizing bacteria from tobacco rhizospheric soil and their effect on tobacco plants
    • Zhang C., Kong F. Isolation and identification of potassium-solubilizing bacteria from tobacco rhizospheric soil and their effect on tobacco plants. Appl. Soil Ecol. 2014, 82:18-25.
    • (2014) Appl. Soil Ecol. , vol.82 , pp. 18-25
    • Zhang, C.1    Kong, F.2
  • 56
    • 33750202151 scopus 로고    scopus 로고
    • Screening, identification and de-silication of a silicate bacterium
    • Zhou H., Zeng X., Liu F., Qiu G., Hu Y. Screening, identification and de-silication of a silicate bacterium. J. Cent. South Univ. Technol. 2006, 13:337-341.
    • (2006) J. Cent. South Univ. Technol. , vol.13 , pp. 337-341
    • Zhou, H.1    Zeng, X.2    Liu, F.3    Qiu, G.4    Hu, Y.5
  • 57
    • 84899864734 scopus 로고    scopus 로고
    • Potassium in agriculture - status and perspectives
    • Zorb C., Senbayram M., Peiter E. Potassium in agriculture - status and perspectives. J. Plant Physiol. 2014, 171:656-669.
    • (2014) J. Plant Physiol. , vol.171 , pp. 656-669
    • Zorb, C.1    Senbayram, M.2    Peiter, E.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.