인산가용미생물, Enterobacterium intermedium 60-2G의 식물 생장 촉진 및 전신저항성 유도

Induced systemic resistance and plant growth promotion of a phosphate-solubilizing bacterium, Enterobactor intermedium 60-2G

  • 김영철 (전남대학교 농업생명과학대학 응용식물학부) ;
  • 김철홍 (전남대학교 농업생명과학대학 응용식물학부) ;
  • 김길용 (전남대학교 농업생명과학대학 응용생물공학부) ;
  • 조백호 (전남대학교 농업생명과학대학 응용식물학부)
  • Kim, Young-Cheol (Division of Applied Plant Science, Agricultural Plant Science Research Center(APSRC), College of Agricultural Life Science, Chonnam, National University) ;
  • Kim, Chul-Hong (Division of Applied Plant Science, Agricultural Plant Science Research Center(APSRC), College of Agricultural Life Science, Chonnam, National University) ;
  • Kim, Kil-Young (Division of Applied and Bioscience and Biotechnology College of Agricultural Life Science, Chonnam, National University) ;
  • Cho, Baik-Ho (Division of Applied Plant Science, Agricultural Plant Science Research Center(APSRC), College of Agricultural Life Science, Chonnam, National University)
  • 투고 : 2002.08.12
  • 심사 : 2002.08.16
  • 발행 : 2002.08.30

초록

인산가용 미생물인 Enterobacter intermedium 60-2G의 식물생장촉진 능력과 흑성병균인 Cladosporium cucumerinum에 대한 유도전신저항성 능력을 오이와 오이 흑성병균을 모델로 확인하였다. E. intermedium 을 처리한 오이는 물을 처리한 control에 비해 C. cucumerinum에 의한 흑성병의 병징이 현저히 감소하였다. 또한 E. intermedium를 처리한 오이는 식물 생장촉진효과도 보였다. Strain 60-2G은 Fusarium oxysporum와 Magnaporthe grisea을 포함한 여러 식물 병원 곰팡이에 대해 강한 항균활성을 나타내었다. 본 연구는 인산가용능력을 가진 E. intermedium 60-2G는 식물의 생육을 증진시키는데 관여하는 여러가지 유익한 형질을 가진 아주 유용한 생물적 방제균임을 밝혔다.

A phosphate-solubilizing bacterium, Enterobacter intermedium 60-2G, was examined for plant growth-promotion and induction of systemic resistance using a model system of cucumber and scab disease, caused by Cladosporium cucumerinum. Compared with a nonbacterized control, treatment of cucumber with E. intermedium significantly reduced the severity of scab disease after challenge-inoculation with C. cucumerinum. Treatment of cucumber with E. intermedium also enhanced cucumber growth. The 60-2G strain showed a strong antimicrobial activity against several plant pathogenic fungi including Fusarium soysporum and Magnaporthe grisea. These results suggest the E. intermedium 60-2G is a promising candidate as a biological control agent displaying multiple beneficial properties to promote plant health.

키워드

참고문헌

  1. Bloemberg, G. V., B. J. J. Lugtenberg. 2001. Molecular basis of plant growth promotion and biocontrol by rhizobacteJia. Current Opinion in Plant Biology 4 : 343-350 https://doi.org/10.1016/S1369-5266(00)00183-7
  2. De Freitas. J. R, M. R Banerjee, and J. J. Gerrnida 1997. Phosphate-solubilizing rhizobacteJia enhance the growth and yield but not phosphorus uptake of canola (Brassica nupus L.). BioI.Fetil. Soils, 24 : 358-364 https://doi.org/10.1007/s003740050258
  3. Handelsman, J., and E. V. Stabb. 1996. Biocontrol of soilborne plant pathogens. Plant Cell, 8: 1855-1869 https://doi.org/10.1105/tpc.8.10.1855
  4. Kim, K.Y., H. B. Hwang, Y. W. Kim. H. J. Kim. K. H. Park. Y.C. Kim. and K. Y. Seong. 2002. Organic acid production and phosphate solubllization by Enterobacter tntermedi.um 60-2G. Korean J. Soil Sci. & Fert .. 35 : 59$\circ$. 67
  5. Kwon. M. K, J. R. Hong. B. H. Cho, U. K. Ki, and K. C. Kim 1999. A scab disease caused by Cladosporium cucumerinum on water melon seedlings. Plant Pathol. J., 15: 72-75
  6. Maurhofer, M.. C. Hase, P. Meuwly, J. P. Metraux, and G. Defago. 1994. Interaction of systemic resistance of tobacco to tobacco necrosis virus by the root-colonizing Pseudomonasjluoresrens strain CHAO ; influence of the gacA gene and of pyoverdine production. Phytopathology. 84;139-146 https://doi.org/10.1094/Phyto-84-139
  7. Rammoorthy, V., R. Viswanathan, T. Raguchander, V. Prakasam, and R. Samiyappan. 2001. Induction of systemic resistance by plant growth promoting rhizobacteria in crop plants against pests and diseases. Crop Protection. 20 : 1-11 https://doi.org/10.1016/S0261-2194(00)00056-9
  8. Raupach, G. S., L. Liu, J. F. Murphy. S. Tuztm, and J. W. Kloepper. 1996. Induced systemic resistance in cucumber and tomato against cucumber mosaic cucumovlrus using plant growth-promoting rhizobacteria (PGPR). Plant Dis., 80: 891$\circ$. 894 https://doi.org/10.1094/PD-80-0891
  9. Ryals, J. A., V. H. Neuenschwander, M. G. Willits. A. Molina, H.-Y. Steiner, and M. D. Hunt. 1996. Systemic acquired resistance. Plant Cell, 8: 1809-1819 https://doi.org/10.1105/tpc.8.10.1809
  10. Tuzun, S. 2001. The relationship between pathogeninduced systemic resistance (ISR) and multlgenic (horizontal) resistance In plants. Eur. J. Plant Pathol., 107:85-93 https://doi.org/10.1023/A:1008784417222
  11. Van Loon L. C., P. A. H. M. Bakker. and C. M. J. Pieterse. 1998. Systemic resistance induced by rhizosphere bacteJia. Annu. Rev. Phytopathol., 36: 453 $\circ$. 483 https://doi.org/10.1146/annurev.phyto.36.1.453
  12. Van Peer R.. G. J. Niemann, and B. Schippers. 1991. Induced resistance and phytoalexin accumulation In biological control of Fusarium wilt of carnation by Pseudomonas sp. strain WCS417r. Phytopathology 81 : 728-734 https://doi.org/10.1094/Phyto-81-728
  13. Wei, G... J. W. Kloepper, and S. Tuztm. 1991. Induction of systemic resistance of cucumber to Colletetrichum orbiculare by select strains of plant growth-promoting rhlzobacterla. Phytopathology 81 : 1508-1512 https://doi.org/10.1094/Phyto-81-1508
  14. Wei. G.., J. W. Klopper, and S. Tuzun. 1996. Induced systemic resistance to cucumber diseases and increased plant growth by plant growth-promoting rhlzobacteria under fieldconditions. Phytopathology. 86:221-224 https://doi.org/10.1094/Phyto-86-221