Aspergillus Spoilage: Spoilage of Cereals and Cereal Products by the Hazardous Species A. Clavatus

  • Brian Flannigan
  • Andrew R. Pearce
Part of the Federation of European Microbiological Societies Symposium Series book series (FEMS, volume 69)


Aspergillus clavatus Desm. is one of a small group of species in the Clavati subgenus and section of the genus that is characterised by large blue-green clavate conidial heads. The heads in A. clavatus later split into divergent columns of compacted conidial chains. Members of the A. clavatus group are common in soils and decomposing materials, their occurrence in soil perhaps being associated with the presence of faecal material (Raper and Fennell, 1965). They often grow on dung of a variety of animals, e.g. chicken and pigeon droppings and stable manure. It has been suggested that the type species, A. clavatus, is almost entirely tropical, subtropical and Mediterranean in its distribution (Domsch et al., 1980). However, A. clavatus is probably cosmopolitan; in a review (Flannigan, 1986) it was noted that it had been reported present in temperate countries such as Canada, UK, France. Germany, Rumania, Bulgaria and Jugoslavia, and it has also been isolated in Czechoslovakia (Fassatiová et al., 1991). A. clavatus has been isolated from cultivated soils under crops of cotton, legumes, potatoes, rice and sugar-cane, and specifically from the rhizosphere of banana, basil, clover, French bean, groundnut, rice and wheat, and appears to be strongly influenced by the growing crop and its residues, the rotational crop sequence and the nitrogen regime. Spore germination and germ-tube growth are stimulated by plant tissue and root exudates (Flannigan, 1986)


Wild Rice Kojic Acid Barley Grain Aspergillus Ochraceus Aspergillus Clavatus 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Brian Flannigan
    • 1
  • Andrew R. Pearce
    • 1
  1. 1.Department of Biological SciencesHeriot-Watt UniversityEdinburghUK

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