메뉴 건너뛰기




Volumn 12, Issue 3, 1999, Pages 227-235

Gentisic acid as a pathogen-inducible signal, additional to salicylic acid for activation of plant defenses in tomato

Author keywords

Antifungal proteins; Phenolics

Indexed keywords

ANTIFUNGAL ACTIVITY; BENZOIC ACID; GENTISIC ACID; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; LYCOPERSICON ESCULENTUM; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PLANT PATHOGEN INTERACTION; PSEUDOMONAS SYRINGAE; SALICYLIC ACID; TOMATO MOSAIC VIRUS; VIROID;

EID: 0033011985     PISSN: 08940282     EISSN: None     Source Type: Journal    
DOI: 10.1094/MPMI.1999.12.3.227     Document Type: Article
Times cited : (91)

References (61)
  • 2
    • 0000216573 scopus 로고
    • Polyamines in plants infected by citrus exocortis viroid or treated with silver ions and ethephon
    • Bellés, J. M., Carbonell, J., and Conejero, V. 1991. Polyamines in plants infected by citrus exocortis viroid or treated with silver ions and ethephon. Plant Physiol. 96:1053-1059.
    • (1991) Plant Physiol. , vol.96 , pp. 1053-1059
    • Bellés, J.M.1    Carbonell, J.2    Conejero, V.3
  • 3
    • 4244155645 scopus 로고
    • Pathogenesis-related proteins and polyamines in a developmental mutant of tomato, Epinastic
    • Bellés, J. M., Tornero, P., and Conejero, V. 1992. Pathogenesis-related proteins and polyamines in a developmental mutant of tomato, Epinastic. Plant Physiol. 98:1502-1505.
    • (1992) Plant Physiol. , vol.98 , pp. 1502-1505
    • Bellés, J.M.1    Tornero, P.2    Conejero, V.3
  • 4
    • 0030476449 scopus 로고    scopus 로고
    • Plant disease resistance gene: Function meets structure
    • Bent, A. R. 1996. Plant disease resistance gene: Function meets structure. Plant Cell 8:757-1771.
    • (1996) Plant Cell , vol.8 , pp. 757-1771
    • Bent, A.R.1
  • 5
    • 0017184389 scopus 로고
    • A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
    • Bradford, M. M. 1976. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 72:248-254.
    • (1976) Anal Biochem. , vol.72 , pp. 248-254
    • Bradford, M.M.1
  • 6
    • 0030938488 scopus 로고    scopus 로고
    • The Arabidopsis NPR1 gene that controls systemic acquired resistance encodes a novel protein containing ankyrin repeats
    • Cao, H., Glazebrook, J., Clarke, J. D., Volko, S., and Dong, X. 1997. The Arabidopsis NPR1 gene that controls systemic acquired resistance encodes a novel protein containing ankyrin repeats. Cell 88:57-63.
    • (1997) Cell , vol.88 , pp. 57-63
    • Cao, H.1    Glazebrook, J.2    Clarke, J.D.3    Volko, S.4    Dong, X.5
  • 7
    • 0004326986 scopus 로고
    • Biosynthesis of phenolic acids in tomato plants infected with Agrobacterium tumefaciens
    • Chadha, K. C., and Brown, S. A. 1974. Biosynthesis of phenolic acids in tomato plants infected with Agrobacterium tumefaciens. Can. J. Bot. 52:2041-2047.
    • (1974) Can. J. Bot. , vol.52 , pp. 2041-2047
    • Chadha, K.C.1    Brown, S.A.2
  • 8
    • 0027756183 scopus 로고
    • Active oxygen species in the induction of plant systemic acquired resistance by salicylic acid
    • Chen, Z., Silva, H., and Klessig, D. F. 1993. Active oxygen species in the induction of plant systemic acquired resistance by salicylic acid. Science 262:1883-1886.
    • (1993) Science , vol.262 , pp. 1883-1886
    • Chen, Z.1    Silva, H.2    Klessig, D.F.3
  • 10
    • 0001140063 scopus 로고    scopus 로고
    • The biosynthesis of salicylic acid in potato plants
    • Coquoz, J. L., Buchala, A., and Métraux, J. P. 1998. The biosynthesis of salicylic acid in potato plants. Plant Physiol. 117:1095-1101.
    • (1998) Plant Physiol. , vol.117 , pp. 1095-1101
    • Coquoz, J.L.1    Buchala, A.2    Métraux, J.P.3
  • 12
    • 8244241755 scopus 로고    scopus 로고
    • Identification of an Arabidopsis locus required for resistance to turnip crinkle virus
    • Dempsey, D. A., Pathirana, M. S., Wobbe, K. K., and Klessig, D. F. 1997. Identification of an Arabidopsis locus required for resistance to turnip crinkle virus. Plant J. 11:301-311.
    • (1997) Plant J. , vol.11 , pp. 301-311
    • Dempsey, D.A.1    Pathirana, M.S.2    Wobbe, K.K.3    Klessig, D.F.4
  • 13
    • 0028078429 scopus 로고
    • Early events in the activation of plant defense responses
    • Dixon, R. A., Harrison, J. J., and Lamb, C. J. 1994. Early events in the activation of plant defense responses. Annu. Rev. Phytopathol. 32: 479-501.
    • (1994) Annu. Rev. Phytopathol. , vol.32 , pp. 479-501
    • Dixon, R.A.1    Harrison, J.J.2    Lamb, C.J.3
  • 14
    • 0030614169 scopus 로고    scopus 로고
    • Salicylic acid and disease resistance in plants
    • Durner, J., Shah, J., and Klessig, D. F. 1997. Salicylic acid and disease resistance in plants. Trends Plant Sci. 2:266-274.
    • (1997) Trends Plant Sci. , vol.2 , pp. 266-274
    • Durner, J.1    Shah, J.2    Klessig, D.F.3
  • 15
    • 0001571788 scopus 로고
    • Induction of UDP-glucose: Salicylic acid glucosyltransferase activity in tobacco mosaic virus-inoculated tobacco (Nicotiana tabacum)
    • Enyedi, A. J., and Raskin, I. 1993. Induction of UDP-glucose: Salicylic acid glucosyltransferase activity in tobacco mosaic virus-inoculated tobacco (Nicotiana tabacum). Plant Physiol. 101:1375-1380.
    • (1993) Plant Physiol. , vol.101 , pp. 1375-1380
    • Enyedi, A.J.1    Raskin, I.2
  • 16
    • 0026607121 scopus 로고
    • Localization, conjugation and function of salicylic acid in tobacco during the hypersensitive reaction to tobacco mosaic virus
    • Enyedi, A. J., Yalpani, N., Silverman, P., and Raskin, I. 1992. Localization, conjugation and function of salicylic acid in tobacco during the hypersensitive reaction to tobacco mosaic virus. Proc. Natl. Acad. Sci. USA 89:2480-2484.
    • (1992) Proc. Natl. Acad. Sci. USA , vol.89 , pp. 2480-2484
    • Enyedi, A.J.1    Yalpani, N.2    Silverman, P.3    Raskin, I.4
  • 18
    • 0344314913 scopus 로고
    • 6(P34) PR proteins induced in tomato leaves by citrus exocortis viroid infection are chitinases
    • 6(P34) PR proteins induced in tomato leaves by citrus exocortis viroid infection are chitinases. Physiol. Mol. Plant Pathol. 36:249-260.
    • (1990) Physiol. Mol. Plant Pathol. , vol.36 , pp. 249-260
    • García-Breijo, F.J.1    Garro, R.2    Conejero, V.3
  • 19
    • 38249038223 scopus 로고
    • Induction of pathogenesis-related proteins in tomato by citrus exocortis viroid, silver and ethephon
    • Granell, A., Bellés, J. M., and Conejero, V. 1987. Induction of pathogenesis-related proteins in tomato by citrus exocortis viroid, silver and ethephon. Physiol. Mol. Plant Pathol. 31:83-90.
    • (1987) Physiol. Mol. Plant Pathol. , vol.31 , pp. 83-90
    • Granell, A.1    Bellés, J.M.2    Conejero, V.3
  • 20
    • 0000906401 scopus 로고
    • On the distribution of gentisic acid in green plants
    • Griffiths, L. A. 1959. On the distribution of gentisic acid in green plants. J. Exp. Bot. 10:437-442.
    • (1959) J. Exp. Bot. , vol.10 , pp. 437-442
    • Griffiths, L.A.1
  • 22
    • 0000832475 scopus 로고
    • Conversion of salicylic acid to gentisic acid and o-pyrocatechuic acid, all labelled with carbon-14, in plants
    • Ibrahim, R. K., and Towers G. H. N. 1959. Conversion of salicylic acid to gentisic acid and o-pyrocatechuic acid, all labelled with carbon-14, in plants. Nature 184:1803.
    • (1959) Nature , vol.184 , pp. 1803
    • Ibrahim, R.K.1    Towers, G.H.N.2
  • 23
    • 0028852788 scopus 로고
    • Defense responses of plants to pathogens
    • Kombrink, E., and Somssich, Y. E. 1995. Defense responses of plants to pathogens. Adv. Bot. Res. 21:1-34.
    • (1995) Adv. Bot. Res. , vol.21 , pp. 1-34
    • Kombrink, E.1    Somssich, Y.E.2
  • 24
    • 0011156050 scopus 로고
    • Antifungal activity of phenolics against fungi commonly encountered during storage
    • Lattanzio, V., De Cicco, D., Di Venere, D., Lima, G., and Salerno, M. 1994. Antifungal activity of phenolics against fungi commonly encountered during storage. Ital. J. Food Sci. 6:23-30.
    • (1994) Ital. J. Food Sci. , vol.6 , pp. 23-30
    • Lattanzio, V.1    De Cicco, D.2    Di Venere, D.3    Lima, G.4    Salerno, M.5
  • 25
    • 0031719553 scopus 로고    scopus 로고
    • Glucosylation of salicylic acid in Nicotiana tabacum Cv. Xanthi-nc
    • Lee, H., and Raskin, I. 1998. Glucosylation of salicylic acid in Nicotiana tabacum Cv. Xanthi-nc. Phytopathology 88:692-697.
    • (1998) Phytopathology , vol.88 , pp. 692-697
    • Lee, H.1    Raskin, I.2
  • 26
    • 0028799349 scopus 로고
    • Benzoic acid 2-hydroxylase, a soluble oxygenase from tobacco, catalyzes salicylic acid biosynthesis
    • León, J., Shulaev, V., Yalpani, N., Lawton, M. A., and Raskin, I. 1995. Benzoic acid 2-hydroxylase, a soluble oxygenase from tobacco, catalyzes salicylic acid biosynthesis. Proc. Natl. Acad. Sci. USA 92: 10413-10417.
    • (1995) Proc. Natl. Acad. Sci. USA , vol.92 , pp. 10413-10417
    • León, J.1    Shulaev, V.2    Yalpani, N.3    Lawton, M.A.4    Raskin, I.5
  • 27
    • 0027145899 scopus 로고
    • Induction of benzoic acid 2-hydroxylase in virus-inoculated tobacco
    • León, J., Yalpani, N, Raskin, I., and Lawton, M. A. 1993. Induction of benzoic acid 2-hydroxylase in virus-inoculated tobacco. Plant Physiol. 103:323-328.
    • (1993) Plant Physiol. , vol.103 , pp. 323-328
    • León, J.1    Yalpani, N.2    Raskin, I.3    Lawton, M.A.4
  • 28
    • 0027994499 scopus 로고
    • Increased disease susceptibility of transgenic tobacco plants with suppressed levels of preformed phenylpropanoid products
    • Maher, E. A., Bate, N. J., Ni, W., Elkind, Y., Dixon, R. A., and Lamb, C. J. 1994. Increased disease susceptibility of transgenic tobacco plants with suppressed levels of preformed phenylpropanoid products. Proc. Natl. Acad. Sci. USA 91:7802-7806.
    • (1994) Proc. Natl. Acad. Sci. USA , vol.91 , pp. 7802-7806
    • Maher, E.A.1    Bate, N.J.2    Ni, W.3    Elkind, Y.4    Dixon, R.A.5    Lamb, C.J.6
  • 29
    • 0025696287 scopus 로고
    • Salicylic acid: A likely endogenous signal in the resistance response of tobacco to viral infection
    • Malamy, J., Carr, J. P., Klessig, D. F., and Radkin, I. 1990. Salicylic acid: A likely endogenous signal in the resistance response of tobacco to viral infection. Science 250:1002-1004.
    • (1990) Science , vol.250 , pp. 1002-1004
    • Malamy, J.1    Carr, J.P.2    Klessig, D.F.3    Radkin, I.4
  • 30
    • 3643112148 scopus 로고
    • Temperature-dependent induction of salicylic acid and its conjugates during the resistance response to tobacco mosaic virus infection
    • Malamy, J., Hening, J., and Klessig, D. F. 1992. Temperature-dependent induction of salicylic acid and its conjugates during the resistance response to tobacco mosaic virus infection. Plant Cell 4:359-366.
    • (1992) Plant Cell , vol.4 , pp. 359-366
    • Malamy, J.1    Hening, J.2    Klessig, D.F.3
  • 32
    • 0002514256 scopus 로고
    • Role of phenolics in plant disease resistance
    • Wiley-Liss, New York
    • Métraux, J. P., and Raskin, I. 1993. Role of phenolics in plant disease resistance. Pages 191-209 in: Biotechnology in Plant Disease Control. Wiley-Liss, New York.
    • (1993) Biotechnology in Plant Disease Control , pp. 191-209
    • Métraux, J.P.1    Raskin, I.2
  • 34
    • 0027490235 scopus 로고
    • Ortho-anisic acid as internal standard for the simultaneous quantification of salicylic acid and its putative biosynthetic precursors in cucumber leaves
    • Meuwly, P., and Métraux, J. P. 1993. Ortho-anisic acid as internal standard for the simultaneous quantification of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Anal. Biochem. 214:500-505.
    • (1993) Anal. Biochem. , vol.214 , pp. 500-505
    • Meuwly, P.1    Métraux, J.P.2
  • 35
    • 0029176176 scopus 로고
    • Local and systemic biosynthesis of salicylic acid in infected cucumber plants
    • Meuwly, P., Mölders, W., Buchala, A., and Métraux, J. P. 1995. Local and systemic biosynthesis of salicylic acid in infected cucumber plants. Plant Physiol. 109:1107-1114.
    • (1995) Plant Physiol. , vol.109 , pp. 1107-1114
    • Meuwly, P.1    Mölders, W.2    Buchala, A.3    Métraux, J.P.4
  • 37
    • 0001182897 scopus 로고
    • Regulation of heat production in the inflorescences of an Arum lily by endogenous salicylic acid
    • Raskin, I., Turner, I. M., and Melander, W. R. 1989. Regulation of heat production in the inflorescences of an Arum lily by endogenous salicylic acid. Proc. Natl. Acad. Sci. USA 86:2214-2218.
    • (1989) Proc. Natl. Acad. Sci. USA , vol.86 , pp. 2214-2218
    • Raskin, I.1    Turner, I.M.2    Melander, W.R.3
  • 38
    • 0001690148 scopus 로고
    • Systemic induction of salicylic acid accumulation in cucumber after inoculation with Pseudomonas syringae pv. syringae
    • Rasmussen, J. B., Hammerschmidt, R., and Zook, M. N. 1991. Systemic induction of salicylic acid accumulation in cucumber after inoculation with Pseudomonas syringae pv. syringae. Plant Physiol. 97:1342-1347.
    • (1991) Plant Physiol. , vol.97 , pp. 1342-1347
    • Rasmussen, J.B.1    Hammerschmidt, R.2    Zook, M.N.3
  • 39
    • 0027622026 scopus 로고
    • cDNA cloning of viroid-induced tomato pathogenesis-related protein P23. Characterization as a vacuolar antifungal factor
    • Rodrigo, I., Vera, P., Tornero, P., Hernández-Yago, J., and Conejero, V. 1993. cDNA cloning of viroid-induced tomato pathogenesis-related protein P23. Characterization as a vacuolar antifungal factor. Plant Physiol. 102:939-945.
    • (1993) Plant Physiol. , vol.102 , pp. 939-945
    • Rodrigo, I.1    Vera, P.2    Tornero, P.3    Hernández-Yago, J.4    Conejero, V.5
  • 42
    • 0000872757 scopus 로고
    • Uptake and detoxification of salicylic acid by Vicia faba and Fagopyrum esculentum
    • Schulz, M., Schnabl, H., Manthe, B., Schweihofen, B., and Casser, I. 1993. Uptake and detoxification of salicylic acid by Vicia faba and Fagopyrum esculentum. Phytochemistry 33:291-294.
    • (1993) Phytochemistry , vol.33 , pp. 291-294
    • Schulz, M.1    Schnabl, H.2    Manthe, B.3    Schweihofen, B.4    Casser, I.5
  • 43
    • 0031080221 scopus 로고    scopus 로고
    • Salicylic acid potentiates an agonist-dependent gain control that amplifies pathogen signal in the activation of defense mechanisms
    • Shirasu, K., Nakajima, H., Rajasekhar, V. K., Dixon, R. A., and Lamb, C. 1997. Salicylic acid potentiates an agonist-dependent gain control that amplifies pathogen signal in the activation of defense mechanisms. Plant Cell 9:261-270.
    • (1997) Plant Cell , vol.9 , pp. 261-270
    • Shirasu, K.1    Nakajima, H.2    Rajasekhar, V.K.3    Dixon, R.A.4    Lamb, C.5
  • 46
    • 0031195130 scopus 로고    scopus 로고
    • Two PR1 genes from tomato are differentially regulated and reveal a novel mode of expression for a pathogenesis-related gene during the hypersensitive response and development
    • Tornero, P., Gadea, J., Conejero, V., and Vera, P. 1997. Two PR1 genes from tomato are differentially regulated and reveal a novel mode of expression for a pathogenesis-related gene during the hypersensitive response and development. Mol. Plant-Microbe Interact. 10:624-634.
    • (1997) Mol. Plant-microbe Interact. , vol.10 , pp. 624-634
    • Tornero, P.1    Gadea, J.2    Conejero, V.3    Vera, P.4
  • 49
    • 0031714645 scopus 로고    scopus 로고
    • Salicylic acid accumulation in barley is pathogen specific but not required for defense-gene activation
    • Vallélian-Bindschedler, L., Métraux, J.-P., and Schweizer, P. 1998. Salicylic acid accumulation in barley is pathogen specific but not required for defense-gene activation. Mol. Plant-Microbe Interact. 7:702-705.
    • (1998) Mol. Plant-microbe Interact. , vol.7 , pp. 702-705
    • Vallélian-Bindschedler, L.1    Métraux, J.-P.2    Schweizer, P.3
  • 50
    • 0029257410 scopus 로고
    • Induction of tomato stress protein mRNAs by ethephon, 2,6-dichloroisonicotinic acid and salicylate
    • Van Kan, J. A. L., Cozijnsen, T., Danhash, N., and de Wit, P. J. G. M. 1995. Induction of tomato stress protein mRNAs by ethephon, 2,6-dichloroisonicotinic acid and salicylate. Plant Mol. Biol. 27:1205-1213.
    • (1995) Plant Mol. Biol. , vol.27 , pp. 1205-1213
    • Van Kan, J.A.L.1    Cozijnsen, T.2    Danhash, N.3    De Wit, P.J.G.M.4
  • 51
    • 0000312246 scopus 로고
    • The induction of pathogenesis-related proteins by pathogens and specific chemicals
    • Van Loon, L. C. 1983. The induction of pathogenesis-related proteins by pathogens and specific chemicals. Neth. J. Plant Pathol. 89:265-273.
    • (1983) Neth. J. Plant Pathol. , vol.89 , pp. 265-273
    • Van Loon, L.C.1
  • 52
    • 0011095449 scopus 로고
    • The induction and accumulation of the pathogenesis-related P69 proteinase in tomato during citrus exocortis viroid infection and in response to chemical treatments
    • Vera, P., and Conejero, V. 1989. The induction and accumulation of the pathogenesis-related P69 proteinase in tomato during citrus exocortis viroid infection and in response to chemical treatments. Physiol. Mol. Plant Pathol. 34:323-334.
    • (1989) Physiol. Mol. Plant Pathol. , vol.34 , pp. 323-334
    • Vera, P.1    Conejero, V.2
  • 53
    • 38249030655 scopus 로고
    • Immunocytochemical localization of the major pathogenesis-related (PR) protein of tomato plants
    • Vera, P., Hernández Yago, J., and Conejero, V. 1988. Immunocytochemical localization of the major pathogenesis-related (PR) protein of tomato plants. Plant Science 55:223-230
    • (1988) Plant Science , vol.55 , pp. 223-230
    • Vera, P.1    Hernández Yago, J.2    Conejero, V.3
  • 54
    • 0031940106 scopus 로고    scopus 로고
    • Cell wall-degrading enzymes from Erwinia carotovora cooperate in the salicylic acid-independent induction of a plant defense response
    • Vidal, S., Eriksson, A. R. B., Montesano, M., Denecke, J., and Palva, E. T. 1998. Cell wall-degrading enzymes from Erwinia carotovora cooperate in the salicylic acid-independent induction of a plant defense response. Mol. Plant-Microbe Interact. 11:23-32.
    • (1998) Mol. Plant-microbe Interact. , vol.11 , pp. 23-32
    • Vidal, S.1    Eriksson, A.R.B.2    Montesano, M.3    Denecke, J.4    Palva, E.T.5
  • 56
    • 0027132224 scopus 로고
    • Pathway of salicylic acid biosynthesis in healthy and virus-inoculated tobacco
    • Yalpani, N., León, J., Lawton, M. A., and Raskin, I. 1993a. Pathway of salicylic acid biosynthesis in healthy and virus-inoculated tobacco. Plant Physiol. 103:315-321
    • (1993) Plant Physiol. , vol.103 , pp. 315-321
    • Yalpani, N.1    León, J.2    Lawton, M.A.3    Raskin, I.4
  • 57
    • 0027157918 scopus 로고
    • Salicylic acid: A systemic signal in induced plant disease resistance
    • Yalpani, N., and Raskin, I. 1993. Salicylic acid: A systemic signal in induced plant disease resistance. Trends Microbiol. 1:88-92
    • (1993) Trends Microbiol. , vol.1 , pp. 88-92
    • Yalpani, N.1    Raskin, I.2
  • 58
    • 0000820243 scopus 로고
    • Endogenous salicylic acid levels correlate with accumulation of pathogenesis-related proteins and virus resistance in tobacco
    • Yalpani, N., Shulaev, V., and Raskin, I. 1993b. Endogenous salicylic acid levels correlate with accumulation of pathogenesis-related proteins and virus resistance in tobacco. Phytopathology 83:702-708.
    • (1993) Phytopathology , vol.83 , pp. 702-708
    • Yalpani, N.1    Shulaev, V.2    Raskin, I.3
  • 59
    • 0026200231 scopus 로고
    • Salicylic acid is a systemic signal and an inducer of pathogenesis-related proteins in virus-infected tobacco
    • Yalpani, N., Silverman, P., Wilson, T. M. A., Kleier, D. A., and Raskin, I. 1991. Salicylic acid is a systemic signal and an inducer of pathogenesis-related proteins in virus-infected tobacco. Plant Cell 3:809-818.
    • (1991) Plant Cell , vol.3 , pp. 809-818
    • Yalpani, N.1    Silverman, P.2    Wilson, T.M.A.3    Kleier, D.A.4    Raskin, I.5
  • 60
    • 0030839107 scopus 로고    scopus 로고
    • Signal perception and transduction in plant defense responses
    • Yang, Y., Shah, J., and Klessig, D. F. 1997. Signal perception and transduction in plant defense responses. Genes Dev. 11:1621-1639.
    • (1997) Genes Dev. , vol.11 , pp. 1621-1639
    • Yang, Y.1    Shah, J.2    Klessig, D.F.3
  • 61
    • 0032560484 scopus 로고    scopus 로고
    • Resistance gene N-mediated de novo synthesis and activation of a tobacco mitogen-activated protein kinase by tobacco mosaic virus infection
    • Zhang, S. Q., and Klessig, D. F. 1998. Resistance gene N-mediated de novo synthesis and activation of a tobacco mitogen-activated protein kinase by tobacco mosaic virus infection. Proc. Natl. Acad. Sci. USA 95:7433-7438.
    • (1998) Proc. Natl. Acad. Sci. USA , vol.95 , pp. 7433-7438
    • Zhang, S.Q.1    Klessig, D.F.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.