European Journal of Plant Pathology

, Volume 108, Issue 1, pp 73–80

Patterns of Splash Dispersed Conidia of Fusarium poae and Fusarium culmorum

  • Helena Mirjami Hörberg


Splash dispersal of Fusarium culmorum and Fusarium poae spores was studied, using inoculated straw placed on tiles as the inoculum source to infect agar strips and artificially produced leaves. In addition, patterns of spread were studied with spores from inoculated artificial leaves onto agar strips. Observed patterns of spore dispersal for each species were indistinguishable, although F. culmorum produced fewer colonies than F. poae. Furthermore, spore dispersal from inoculated straw and artificial leaves were essentially identical, with one exception; colonies arose from single conidia when spread from artificial leaves, but consisted of clumps of conidia when derived from inoculated straw. Splash dispersal patterns of both species onto the upper- and undersides of artificial leaves were different. On the upperside of the leaf, most colonies were found at the tip, while on the underside of the leaf most colonies were found at the base of the leaf. This is the first time that artificially produced leaves have been used in splash dispersal experiments.

cereals ear blight rain spore dispersal leaves 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bateman GL, Murray G, Gutteridge RJ and Coskun H (1998) Effects of method of straw disposal and depth of cultivation on populations of Fusarium spp. in soil and on brown foot rot in continuous winter wheat. Annals of Applied Biology 132: 35–47Google Scholar
  2. Brennan RM, Fitt BDL, Taylor GS and Colhoun J (1985) Dispersal of Septoria nodorum pycnidiospores by simulated rain and wind. Phytopathologische Zeitschrift 112: 291–297Google Scholar
  3. Doohan FM, Parry DW and Nicholson P (1999) Fusarium ear blight of wheat: the use of quantitative PCR and visual disease assesment in studies of disease control. Plant Pathology 48: 209–217Google Scholar
  4. Fatemi F and Fitt BDL (1983) Dispersal of Pseudocercosporella herpotrichoides and Pyrenopeziza brassicae spores in splash droplets. Plant Pathology 32: 401–404Google Scholar
  5. Fitt BDL and Lysandrou M (1984) Studies on the mechanisms of splash dispersal of spores, using Pseudocercosporella herpotrichoides spores. Phytopathologische Zeitschrift 111: 323–331Google Scholar
  6. Fitt BDL and McCartney HA (1986) Spore dispersal in splash droplets. In:Ayres PG and Lynne Boddy (eds) Water, Fungi and Plants: Symposium of the British Mycological Society Held at the University of Lancaster, April 1985 Vol 1 (pp 87–104) The Bath Press, AvonGoogle Scholar
  7. Fitt BDL, McCartney HA, Creighton NF, Lacey ME and Walklate PJ (1988) Dispersal of Rhynchosporium secalis conidia from infected barley leaves or straw by simulated rain. Annals of Applied Biology 112: 49–59Google Scholar
  8. Fitt BDL, McCartney HA and Walklate PJ (1989) The role of rain in dispersal of pathogen inoculum. Annual Review of Phytopathology 27: 241–270Google Scholar
  9. Hall R and Cutton JC (1998) Relation of weather, crop, and soil variables to the prevalence, incidence, and severity of basal infections of winter wheat in Ontario. Canadian Journal of Plant Pathology 20: 69–80Google Scholar
  10. Jenkinson P and Parry DW (1994) Splash dispersal of conidia of Fusarium culmorum and Fusarium avenaceum. Mycological Research 98: 506–510Google Scholar
  11. Madden LV (1992) Rainfall and the dispersal of fungal spores. Advances in Plant Pathology 8: 39–79Google Scholar
  12. Madden LV (1997) Effects of rain on splash dispersal of fungal pathogens. Canadian Journal of Plant Pathology 19: 225–230Google Scholar
  13. Mills JT (1989) Ecology of mycotoxigenic Fusarium species on cereal seeds. Journal of Food Protection 52: 737–742Google Scholar
  14. Nirenberg H (1976) Untersuchungen über die morphologische und biologische Differenzierung in der Fusarium-sektion Liseola. Mitteilungen aus der biologischen Bundesanstalt für Land-und Forstwirtschaft. 169: 1–117Google Scholar
  15. Pedersen EA, Morrall RAA, McCartney HA and Fitt BDL (1994) Dispersal of conidia of Ascochyta fabae f. sp. lentis from infected lentil plants by simulated wind and rain. Plant Pathology 43: 50–55Google Scholar
  16. Polley RW and Turner JA (1995) Surveys of stem base diseases and Fusarium ear diseases in winter wheat in England, Wales and Scotland, 1989–1990. Annals of Applied Biology 126: 45–59Google Scholar
  17. Rossi V, Pattori E, Languasco L and Giosuè S (2000) Dispersal of Fusarium species causing head blight of winter wheat under field conditions. In: Nirenberg (ed) Mitteilungen aus der Biologischen Bundesanstalt für Land-und Forstwirtschaft Berlin-Dahlem: 6th European Fusarium Seminar and Third COST 835 Workshop of Agriculturally Important Toxigenic Fungi, Vol 377 (pp 45–46) Parey Buchverlag, BerlinGoogle Scholar
  18. Walklate PJ, McCartney HA and Fitt BDL (1989) Vertical dispersal of plant pathogens by splashing. Part II: experimental study of the relationship between raindrop size and the maximum splash height. Plant Pathology 38: 64–70Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Helena Mirjami Hörberg
    • 1
  1. 1.Department of Ecology and Crop Production SciencesSwedish University of Agricultural SciencesUppsalaSweden

Personalised recommendations