The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
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Factors Affecting Sporulation of a Mycoherbicide, Epicoccosorus nematosporus, on the Lesion of Eleocharis kuroguwai

  • Hong, Yeon-Kyu (Plant Environment Division, National Yeongnam Agricultural Experiment station, Rural Development Administration) ;
  • Hyun, Jong-Nae (Plant Environment Division, National Yeongnam Agricultural Experiment station, Rural Development Administration) ;
  • Cho, Jae-Min (Plant Environment Division, National Yeongnam Agricultural Experiment station, Rural Development Administration) ;
  • Uhm, Jae-Youl (Agricultural Biology Division, Kyungpook National University) ;
  • Kim, Soon-Chul (Plant Environment Division, National Yeongnam Agricultural Experiment station, Rural Development Administration)
  • Published : 2002.04.01
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Abstract

Effects of temperature and dew period on sporulation of a mycoherbicide, Epicoccosorus nematosporus, on the lesion of its host, Eleocharis kuroguwai were determined. Conidia formation was first observed after 10 days on plants incubated for either 12 or 16 h in a dew chamber at 28$^{\circ}C$; 16 h dew period resulted in more conidia formation. As the dew period was decreased to less than 8 h, fewer conidia formed. Conidial production was most abundant at 28$^{\circ}C$ and produced as much as 3.3$\times$10$^4$conidia per lesion, while 0.1$\times$10$^3$and 2.3$\times$10$^3$conidia per lesion were produced at 16$^{\circ}C$ and 36$^{\circ}C$, respectively. Alternating temperature regimes, i.e., 30/15, 30/20, 28/20, and 28/15$^{\circ}C$ (day/night) were much better than constant temperature, i.e., 30/30, 28/28/, and 20/2$0^{\circ}C$ for sporulation. In the second sporulation, there were as much as 3.1$\times$10$^4$conidia per lesion (ca. <50% of the first sporulation). Then, sporulation dropped sharply to 6.2$\times$10$^2$conidia per lesion in the third sporulation. Results of this study suggest that temperature combined with dew period is the primary limiting factor in the use of E. nematosporus as a mycoherbicide off, kuroguwai.

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References

  1. Abawi, G. S. and Grogan, R. G. 1975. Source of primary inoculim and effects of temperature and moisture on infection of beans by Whetzelinia sclerotiorum. Phytopathology 65:300-309 https://doi.org/10.1094/Phyto-65-300
  2. Alderman, S. C. and Beute, M. K. 1987. Influence of temperature, lesion water potential, and cyclic wet-dry periods on sporulation of Cercospora arachidicola on peanut. Phytopathology 77:960-963 https://doi.org/10.1094/Phyto-77-960
  3. Anderson, R. N. and Walker, H. L. 1985. Colletotrichum coccodes: A pathogen of eastern black nightshade (Solanum ptycanthum). Weed Sci. 33:902-905 https://doi.org/10.1017/S0043174500083570
  4. Baker, K. F. and Cook, R. J. 1974. Biological Control of Plant Pathogens. Freeman, San Fransisco, 433 p
  5. Boland, G. J. and Hall, R. 1987. Epidemiology of white mold of white bean in Ontario. Can. J. Plant Pathol. 9:218-224
  6. Boyette, C. D. and Walker, H. L. 1985. Factors influencing biocontrol of velvet leaf (Abutilon theophrasti) and ptrickly sida (Sida spinosa) with Fusarium lateritium. Weed Sci. 33:209-211
  7. Elwakil, M. A., Sadik, E. A., Fayzalla, E. A. and Shabana, Y. M. 1990. Biological control of water hyacinth with fungal plant pathogens in Egypt. In: Proc. 7th Int. Symp. Bio Control Weeds. ed. by E. S. Delfosse, pp. 483-498 Rome, Italy
  8. Hannusch, D. J. and Boland, G. J. 1996. Influence of air temperature and relative humidity on biological control of white mold of bean (Sclerotinia sclerotiorum). Phytopathology 86:156-162 https://doi.org/10.1094/Phyto-86-156
  9. Hong, Y. K., Kim, J. C., Ryu, K. R. and Kim, S. C. 1991. Pathogenicity and some related characteristics of the fingerprint blight pathogen (Epicoccosorus nematosporus) attacking water chestnut (Eleocharis kuroguwai Ohwi). Korean Plant Pathology Newsletter 2:47(Abstr.)
  10. Hong, Y. K., Kim, J. C. and Lee, S. K. 1992. Biological control of rice weed, waterchestnut (Eleocharis kuroguwai), using the fingerprint stem blight pathogen (Epicoccosorus nematosporvs). Korean Plant Pathology Newletter 3:75 (Abstr.)
  11. Hong, Y. K., Cho, J. M., Kim, J. C. and Uhm, J. Y. 1995. Identification, Pathogenicity, and host range of a potential bioherbicide, Epicoccosorus nematosporus, causing fingerprint stem blight on water chestnut, Eleocharis kuroguwai. Korean J. Plant Pathol. 12:58-65
  12. Hong, Y. K., Cho, J. M., Kim, J. C. and Uhm, J. Y. 1996. Identification, Pathogenicity and host range of a potential Epicoccosorus nematosporus, causing fingerprint stem blight on water chestnut, Eleocharis kuroguwai. Korean J. Plant Pathol. 12:58-65
  13. Hong, Y. K., Cho, J. M., Uhm, J. Y. and Ryu, K. R. 1997. Potential application of Epicoccosorus nematosporus for the control of water chestnut. Korean J. Plant Pathol. 13:167-171
  14. Hong, Y. K., Cho, J. M., Lee, B. C., Uhm, J. Y. and Kim, S. C. 2002. Factors affecting sporulation, germination, and appressoria formation of Epicoccosorus nematosporus as a mycoherbicide under controlled environments. Plant Pathol. J. 18:50-53 https://doi.org/10.5423/PPJ.2002.18.1.050
  15. Kirkpatrick, T. L., Templeton, G. E., TeBeest, D. O. and Smith, R. J. Jr. 1982. Potential of Colletotrichum malvarum for biological control of prickly sida. Plant Dis. 66:323-325 https://doi.org/10.1094/PD-66-323
  16. Lauritzen, J. I., Harter, L. L. and Whitney, W. A. 1933. Environmental factors in relation to snap bean diseases occurring in shipment. Phytopathology 23:411-445
  17. Leonard, K. H. and Thomson,. 1976. Effects of temperature and host maturity on lesion development of Colletotrichum raminicola. Phytopathotogy 66:635-639 https://doi.org/10.1094/Phyto-66-635
  18. Makowski, R. M. D. and Mortenson, K. 1990. Colletotrichum gloeosporioides f. sp. malvae as a bioherbicide for roundleaved mallow (Malva pusilla): conditions for successful control in the field. in: Proc. 7th Int. Symp. Bio. Control Weeds. by E. S. Delfosse, ed. pp. 513-522 Rome, Italy
  19. Nutman, F. J. and Roberts, F. M. 1960. Investigations of the disease of Coffea arabica caused by a form of Colletotrichum coffeanum Noack. II. Some factors affecting germination and infection and their relation to diseaes distribution. Trans Brit. Mycol. Soc. 43:643-659 https://doi.org/10.1016/S0007-1536(60)80055-1
  20. TeBeest, D. O., Templeton, G. E. and Smith R. J. Jr. 1978. Temperature and moisture requirements for development of anthracnose on nothern jointvetch. Phytopathohgy 68:389-393 https://doi.org/10.1094/Phyto-68-389
  21. TeBeest, D. O. and Templeton, G. E. 1985. Mycoherbicides: Progress in biological control of weeds. Ptant Dis. 69:6-10
  22. Tu, J. C. 1982. Effect of temperature on incidence and severity of anthracnose on white beans. Plant Dis. 66:781-783 https://doi.org/10.1094/PD-66-781
  23. Walker, H. L. 1981. Factors affecting biological control of spurred anoda (Anoda cristatd) with Alternaria macrospora. Weed Sci. 29:505-507
  24. Walker, H. L. and Boyette, C. D. 1986. Influence of sequential dew periods on biocontrol of sicklepod (Cassia obtusifolia) by Alternaria cassiae. Plant Dis. 70:974-976 https://doi.org/10.1094/PD-70-974

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