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Formation of Teleomorph of the White Root Rot Fungus, Rosellinia necatrix, and the Potential Role of its Ascospores as Inocula

  • Lee, J.S. (Division of Horticultural Environment, National Horticultural Research Institute, RDA) ;
  • Han, K.S. (Division of Horticultural Environment, National Horticultural Research Institute, RDA) ;
  • Park, J.H. (Division of Horticultural Environment, National Horticultural Research Institute, RDA) ;
  • Park, Y.M. (Division of Horticultural Environment, National Horticultural Research Institute, RDA) ;
  • Naoyuki, Matsumoto (National Institute for Agro-Environmental Sciences)
  • 발행 : 2003.06.01

초록

Stromata of the white root rot fungus, Rosellinia necatrix, were produced on diseased roots although they were reported to develop rarely in nature. Forty-two (42) out of 47 samples produced synnemata while 23 developed stromata. Forty-seven (47) isolates obtained from diseased root samples were divided into 24 mycelium compatibility groups (MCGs). Sixteen (16) out of 24 MCGs produced stromata. Single ascospore isolates from 10 stroma samples produced dsRNA-containing isolates from diseased tissue beneath stromata. The frequency of synnema production on axenic culture varied among isolates with different origin. The dsRNA was not transmitted vertically to the ascospore offspring despite the infection of various dsRNA in the parental isolates. The dsRNA was absent in 35 ascospore isolates in two stroma samples that originated from the isolates, in which dsRNA was not eliminated by hyphal tip isolation. Consequently, sexual reproduction in the white root rot fungus was suggested to produce propagules as a new infection source and to have the function to eliminate infectious factors such as mycoviruses.

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참고문헌

  1. Anagnostakis, S. L. 1982. Biological control of chestnut blight. Science 215:466-471 https://doi.org/10.1126/science.215.4532.466
  2. Arakawa, M., Naganawa, T., Nakamura, H., Uetake, Y., Nitta, H., Kakishima, M. and Matsumoto, M. 2002a. A hypovirulent isolate of the white root rot fungus, Rosellinia necatrix, with multiple dsRNA segments. Phytopathology. 85: 1250-1254 https://doi.org/10.1094/Phyto-85-1250
  3. Arakawa, M., Nakamura, H., Uetake, Y. and Matsumoto, M. 2002b. Diversity of double-stranded RANs in the white root rot fungus, Rosellinia necatrix. Mycoscience 43 (in press)
  4. Buck, K. W. 1986. Rosellinia necatrix. Mycoscience, pp. 1-84. CRC Press, Boca Raton, Florida
  5. Buck, K. W. 1998. Molecular variability of viruses of fungi. In: Molecular Variability of Fungal Pathogen (edited by P. Bridge, Y. Counteaudier and J. Clarkson), pp. 53-72. CAB International, London
  6. Francis, S. M. 1985. Rosellinia necatrix-fact or fiction. Sydowia 38:75-86
  7. Hansen, H. N. and Thomas, H. E. 1937. The connection between Dematophora necatrix and Rosellinia nacatrix. Hilgardia 10: 561-565 https://doi.org/10.3733/hilg.v10n14p561
  8. Ito, S. and Nakamura, N. 1984. An ontbreak of white root-rot and its environmental conditions in the experimental arboretum. J. Jpn. For. Soc. 66:262-267
  9. Itoi, S., Kubomura, Y., Nakayama, K., Hinata, Y. and Hayasaka, T. 1964. Studies on white root rots of mulberry trees.. Distribution of diseased plants in infected fields, and artificial inoculation of potted mulberry saplings with Rosellinia necatrix. Bull. Seric. Exp. Stat. (Tokyo) 18:513-528
  10. Khan, A. H. 1959. Biology and pathogenicity of Rosellinia necatrix (Hart.) BerI. Biologia 5:199-245
  11. Matsuo, T. and Sakurai, Y. 1954. Hot-water-disinfection of the sapling of the mulberry tree infected by Rosellinia necatrix (Hart.) BerI. and the situation ofthe isolation ditch preventing the developing of this disease in the mulberry farm, J. Seric. Sci. Jpn. 23:271-277
  12. Nakamura, H., Uetake, Y., Arakawa, M., Okabe, I. and Matsu-moto, N. 2000 Observation on the teleomorph of the white root rot fungus, Rosellinia necatrix, and a related fungus, Rosellinia aquila. Mycoscience 41:503-507 https://doi.org/10.1007/BF02461671
  13. Nalim, F. A., Starr, J. L., Woodard, K. E., Segner, S. and Keller, N. P. 1995. Mycelial compatibility groups in Texas peanut field populations of Sclerotium rolfsii. Phytopathology. 85: 1507-1512 https://doi.org/10.1094/Phyto-85-1507
  14. Nuss, D. L. and Koltin, Y. 1990. Significance of dsRNA genetic elements in plant pathogenic fungi. Ann. Rev. Phytopathol. 28: 37-58 https://doi.org/10.1146/annurev.py.28.090190.000345
  15. Rogers, H. J., Buck, K. W. and Brasier, C. M. 1986. Transmission of double-stranded RNA and a disease factor in Ophiostoma ulmi. Plant Pathol. 35:277-287 https://doi.org/10.1111/j.1365-3059.1986.tb02016.x
  16. Sharland, P. R. and Rayner, A. D. M. 1988. Population structure of Rosellinia desmarieresii causing ring-dying of Salix repens. Trans. Br. Mycol. Soc. 90:654-656 https://doi.org/10.1016/S0007-1536(88)80074-3
  17. Sztejnberg, A. and Madar, Z. 1980. Host range of Dematophora necatrix, the cause of white root rot disease in fruit trees. Plant Dis. 64:662-664 https://doi.org/10.1094/PD-64-662
  18. Teixeira de Sousa, A. J. and Whalley, A. J. S. 1991. Induction of mature stromata in Roseilinia nacatrix and its taxonomic implications. Sydowia 43:281-290
  19. Uetake, Y., Nakamura, H., Arakawa, M., Okabe, I. and Matsumoto, N. 2001 Inoculation of Lupinus luteus with the white root rot fungus, Rosellinia necatrix to estimate virulence. J. Gen. Plant Pathol. 67
  20. Watanabe, B. 1963. Studies on the ecology and control of white root rot disease caused by Rosellinia necatrix (Hart.) Berl. Bulletin of Agriculture, Forestry and Fisheries Research Council, Ministry of Agriculture, Forestry and Fisheries 3:1-110
  21. Worrall, J. J. 1997. Somatic incompatibility in basidiomycetes. Mycologia. 89:24-36 https://doi.org/10.2307/3761169