Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Infection Mechanism of Pathogenic Exduate by Soil-Borne Fungal Pathogens : A Review

  • Lim, You-Jin (Dept. of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Kim, Hye-Jin (Dept. of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Song, Jin-A (Dept. of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Chung, Doug-Young (Dept. of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University)
  • Received : 2012.07.20
  • Accepted : 2012.08.13
  • Published : 2012.08.31
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Abstract

The processes to determine the composition, dynamics, and activity of infection mechanisms by the rhizosphere microflora have attracted the interest of scientists from multiple disciplines although considerable progress of the infection pathways and plant-pathogen interactions by soil borne fungal pathogens have been made. Soilborne pathogens are confined within a three-dimensional matrix of mineral soil particles, pores, organic matter in various stages of decomposition and a biological component. Among the physical and chemical properties of soils soil texture and matric water potential may be the two most important factors that determine spread exudates by soil borne fungal pathogens, based on the size of the soil pores. Pathogenic invasion of plant roots involves complex molecular mechanisms which occur in the diffuse interface between the root and the soil created by root exudates. The initial infection by soilborne pathogens can be caused by enzymes which breakdown cell wall layers to penetrate the plant cell wall for the fungus. However, the fate and mobility of the exudates are less well understood. Therefore, it needs to develop methods to control disease caused by enzymes produced by the soilborne pathogens by verifying many other possible pathways and mechanisms of infection processes occurring in soils.

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