Mycopathologia

, Volume 70, Issue 2, pp 77–82 | Cite as

Cellulose-decomposing fungi of barley grains in Egypt

  • S. I. I. Abdel-Hafez
  • M. I. A. Abdel-Kader
Article

Abstract

100 species and 2 varieties of A. nidulans which belong to 35 genera were identified from 40 samples of barley collected from different places in Upper Egypt. Two methods of isolation were used: the grain-and the dilution plate. The spectrum of fungal genera and species collected by the former (35 genera, 96 species+1 variety) was broader than by the latter method (28 genera, 76 species+1 variety). Nine genera were of high occurrence (represented in more than 50% of the samples) namely, Aspergillus, Penicillium, Fusarium, Alternaria, Chaetomium, Cladosporium, Humicola, Drechslera and Myrothecium. The most frequent species were A. fumigatus, A. niger, A. flavus, A. sydowii, F. oxysporum, F. moniliforme, A. alternata, M. verrucaria, P. funiculosum, P. corylophilum, P. duclauxi, C. herbarum, C. globosum, D. spicifera and H. grisea. Several fungi such as Chaetomium, Humicola, Altemaria, Drechslera, Stachybotrys, Myrothecium, Pénicillium corylophilum and P. funiculosum were far more frequently recovered on cellulose than on glucose agar.

Keywords

Glucose Cellulose Agar Aspergillus Fusarium 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Abdel-Ghaffar, B.A. 1974. Studies on seed-borne fungi in certain Umbelliferae. M.Sc. Thesis. Bot. Dept. Fac. of Science, Tanta Univ.Google Scholar
  2. 2.
    Abol-Wafa, M.T. 1964. Survey on the microorganisms accompanying certain seeds (Leguminous seeds). M. Se. Thesis, Fac. of Agric. Alexandria Univ.Google Scholar
  3. 3.
    Alexander, M. 1961. Introduction to soil microbiology John Wiley Toppan, New York.Google Scholar
  4. 4.
    Assawah, M.W. & H. Elarosi. 1960. Fungi associated with, barley and maize grains. U.A.R. J. Bot. 3 (2): 153–164.Google Scholar
  5. 5.
    Christensen, C.M. 1963. Influence of small differences in moisture content upon the invasion of hard red winter wheat by Aspergillus restrictus and A. repens. Cereal Chem. 40: 385–390.Google Scholar
  6. 6.
    El-Helaly, A.F., M.W. Assawah & A.M. Tarabeih. 1968. I: Seed-borne fungi in certain ornamental plants and their pathogenic propensities I: Mycoflora of Lupine seed. Phytopath. medit. 7: 94–96.Google Scholar
  7. 7.
    El-Helaly, A.F., M.W. Assawah & A.M. Tarabeih. 1968. II: Seed-borne fungi in certain ornamental plants and their pathogenic propensities II: Mycoflora of Nasturtium seed. Phytopath. medit. 7: 96–99.Google Scholar
  8. 8.
    El-Helaly, A.F., M.W. Assawah & A.M. Tarabieh. 1968. III: Seed-borne fungi in certain ornamental plants and their pathogenic propensities III: Mycoflora of sweet-pea seed. Phytopath. medit. 7: 99–101.Google Scholar
  9. 9.
    Flannigan, B. 1970. Degradation of arabinoxylan and carboxymethyl cellulose by fungi isolated from barley kernels. Trans. Br. Myco. Soc. 55 (2): 277–281.Google Scholar
  10. 10.
    Mazen, M.B. 1973. Ecological studies on cellulose decomposing fungi in Egypt. Ph. D. Thesis, Bot. Dept. Fac. of Science, Assiut Univ.Google Scholar
  11. 11.
    Moubasher, A.H., M.A. Elnaghy & S.I. Abdel-Hafez. 1972. Studies on the fungus flora of three grains in Egypt. Mycopathologia et Mycologia applicata 47 (3): 261–274.Google Scholar
  12. 12.
    Raper, K.B. & D.I. Fennell. 1965. The genus Aspergillus. Williams & Wilkins, Baltimore, USA.Google Scholar
  13. 13.
    Reese, E.T. &M.H. Downing. 1951. Activity of theAspergilli on cellulose, derivatives and wool. Mycologia 43: 16.Google Scholar
  14. 14.
    Smith, N.R. & V.T. Dawson. 1944. The bacteriostatic action of rosebengal in media used for the plate count of soil fungi. Soil Sci. 58: 467–471.Google Scholar
  15. 15.
    Stewart, C. & J.H. Walsh. 1972. Cellulolytic activity of pure and mixed cultures of fungi. Trans. Brit. Mycol. Soc. 58: 527.Google Scholar

Copyright information

© Dr. W. Junk b.v. 1980

Authors and Affiliations

  • S. I. I. Abdel-Hafez
    • 1
  • M. I. A. Abdel-Kader
    • 1
  1. 1.Botany Department, Faculty of ScienceAssiut University AssiutEgypt

Personalised recommendations