Skip to main content

Two common fungi associated with farmer's lung: Fine structure of Aspergillus fumigatus and Aspergillus umbrosus

Abstract

The fine structure of Aspergillus fumigatus and Aspergillus umbrosus by transmission electron microscopy (TEM) is described. The fine structure of the ascosporic and asexual stages of A. umbrosus is described for the first time. Dense, homogenous material and fibers were detected on the outer hyphal cell wall of the Aspergilli. Septal pores were found in the hypha of A. umbrosus. Two wall layers were detected in the cell wall of the conidia of the both Aspergilli. The ascospores of A. umbrosus contained thick cell wall and the surface of which was smoother than that of the conidia.

This is a preview of subscription content, access via your institution.

References

  1. Katila M-L, Mäntyjärvi RA. The diagnostic value of antibodies to the traditional antigens of farmer's lung in Finland. Clin Allergy 1979; 8: 1–7.

    Google Scholar 

  2. Terho EO, Lacey J. Microbiological and serological studies of farmer's lung in Finland. Clin Allergy 1978; 9: 43–8.

    Google Scholar 

  3. Gruchow HW, Hoffmann RG, Marx JJJr, Emanuel DA, Rimm AA. Precipitating antibodies to farmer's lung antigens in a Wisconsin farming population. Am Rev Respir Dis 1981; 124: 411–5.

    Google Scholar 

  4. Pepys J, Jenkins PA, Fensstein GN, Gregory PH, Lacey ME, Skinner FA. Farmer's lung. Thermophilic actinomyces as a source of ‘farmer's lung hay’ antigen. Lancet 1963; ii: 607–11.

    Google Scholar 

  5. Bessey EA. Morphology and taxonomy of fungi. Blakiston, Philadelphia 1950: 322–6.

    Google Scholar 

  6. Domsch KH, Gams W, Anderson TH. Compendium of soil fungi. Academic Press. London, 1980.

    Google Scholar 

  7. Blaser P. Taxonomische und physiologische Untersuchungen über die Gattung Eurotium Link ex Fries. Sydowia 1976; 28: 1–49.

    Google Scholar 

  8. Raper KB, Fennell DI. The genus Aspergillus. Baltimore: Williams & Wilkins, 1965.

    Google Scholar 

  9. Hess WM, Stocks DL. Surface characteristics of Aspergillus conidia. Mycologia 1969; 61: 560–71.

    Google Scholar 

  10. Campbell CK. Fine structure of vegetative hyphae of Aspergillus fumigatus. J Gen Microbiol 1970; 64: 373–6.

    Google Scholar 

  11. Blyth W. Modifications in the ultrastructure of Aspergillus fumigatus due to the presence of living cells of Pseudomonas aeruginosa. Sabouraudia 1971; 9: 283–6.

    Google Scholar 

  12. Hanlin RT. Phialide and conidium development in Aspergillus clavatus. Am J Bot 1976; 63: 144–55.

    Google Scholar 

  13. Ghiorse WC, Edwards MR. Ultrastructure of Aspergillus fumigatus conidia development and maturation. Protoplasma 1973; 76: 45–59.

    Google Scholar 

  14. Cole GT, Samson RA. Patterns of development in conidial fungi. Pitman. London, 1979.

    Google Scholar 

  15. Hammill TM. Conidiogenesis. In: Turian G and Hohl HR, eds. The fungal spore: morphogenetic controls. Academic Press. London, 1981.

    Google Scholar 

  16. Cole GT, Sekiya T, Kasai R, Yokoyama T, Nozawa Y. Surface ultrastructure and chemical composition of the cell walls of conidial fungi. Exp Mycol 1979; 3: 132–56.

    Google Scholar 

  17. Kozakiewicz Z. Phialide and conidium development in the Aspergilli. Trans Br Mycol Soc 1978; 70: 175–86.

    Google Scholar 

  18. Tokunaga M, Tokunaga J, Harada K. Scanning and transmission electron microscopy of sterigma and conidiospore formation in Aspergillus group. J Electron Micros 1973; 22: 27–38.

    Google Scholar 

  19. Hanlin RT. Conidium development in Aspergillus clavatus. J Elisha Mitchell Sci Soc 1973; 89: 214–7.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Reijula, K.E. Two common fungi associated with farmer's lung: Fine structure of Aspergillus fumigatus and Aspergillus umbrosus . Mycopathologia 113, 143–149 (1991). https://doi.org/10.1007/BF00436117

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00436117

Key words

  • Aspergillus fumigatus
  • A. umbrosus
  • electron microscopy
  • ultrastructure
  • farmer's lung