DOI QR코드

DOI QR Code

Occurrence of Yeasts in Cultivated Soils in El-Minia City, Egypt

  • Published : 2002.03.31

Abstract

Two-hundred two yeast strains were isolated from rhizosphere(87 strains) and nonrhizosphere(115 strains) areas of potato, maize, vegetable marrow, and cabbage plants. On the basis of 26 morphological and physiological properties, the isolated yeast strains were assigned to 9 genera and 15 species. Trichosporon beigelii, Kluyveromyces marxianus and Torulaspora delbrueckii were the dominant species. Cryptococcus humicolus and Candida tropicalis were represented by considerable numbers of strains. Of low occurrence were Saccharomyces cerevisiae and Candida blankii. Other yeast species were represented by single or two strains. Total counts of yeast cells per gram dry soil ranged from $1.1{\times}10^3$ to $6.6{\times}10^3$ in soil samples of rhizosphere areas and from $6.5{\times}10^2$ to $5.6{\times}10^3$ in soil samples of nonrhizosphere areas. Types of the tested plants affected not only the total counts of yeast cells but also spectra of yeast species. Relationships of age of potato plant, moisture contests of soil samples, and its pH values and total counts of yeast cells were discussed.

Keywords

References

  1. Alexander, M. 1961. Introduction to soil microbiology. John Wiley and Sons Inc., N.Y.
  2. Bab'Eva, L. P. and Belyanin, A. L. 1966. Yeasts in the rhizosphere. Mikrobiologiya 35: 712-720
  3. Bab'Eva, L. P. and Meaved, K. 1967. The distribution of lipomyces yeasts in soils. Vest. Mosk. Gos. Univ. ser. Biol. Pochv. 1: 107-114
  4. Bab'Eva, L. P. and Savel'Eva, N. D. 1963. Yeasts in plant rhizospere, Mikrobiologiya 32: 86-92
  5. Barnett, J. A, Payne, R. W. and Yarrow, D. 1983. Yeasts, characteristics and identification. Cambridge, Unvi. Press, Cambridge
  6. Barnett, J. A, Payne, R. W. and Yarrow, D. 1990. Yeasts, characteristics and identification. Cambridge, Univ. Press, Cambridge
  7. Di Menna, M. E. 1960. Yeasts isolated from New Zealand soil. N. Z J. Agric. Res. 3: 207-213 https://doi.org/10.1080/00288233.1960.10418074
  8. Do Carmo-Sausa, L. 1969. Distribution of yeasts in nature. In the yeasts. Vol. 1. Eds., A. H. Rose and J. S. Harrison. London: Academic Press
  9. Faparusi, S. L. 1978. The bacteria and yeast in the soil palm (Elaeis Guiueeasis) plantations. Soil Sci. 125: 23-27 https://doi.org/10.1097/00010694-197801000-00004
  10. Lund, A. 1954. Studies on the ecology of yeasts. Munksgaard, Copenhagen
  11. Miller, J. J. and Webb, N. S. 1954. Isolation of yeasts from soil with the aid of acid, rose bengal and oxygall.Sorl Sci. 77: 197-204
  12. Moawad, H. 1971. Occurrence of yeasts in U.A.R. soils. zbl. Bakt. 11: 280-285
  13. Monib, M., Zahra, M. K. and Armanios, R. R. 1982a. Suitable media for isolation of yeasts from Egyptian soils. Zbl. Mikrobiol. 137: 363-367
  14. Monib, M., Zahra, M. K. and Armanios, R. R. 1982b. Occurrence of yeasts in Egyptian and Nigerian soils. Zbl. Mikrobiol. 137: 369-373
  15. Phaff, H. J., Miller, M. W. and Mark, E. M. 1978. The life of yeasts. 2nd edn., Harvard Univ. Press, Cambridge, Massachusetts
  16. Phaff, H. J., and Starmer, W. T. 1987. Yeasts associated with plants, insects and soil. In the yeasts. Vol. 1 Eds. A H. Rose and J. S. Harrison. London, Academic Press
  17. Wickerham, L. J. 1951. Taxonomy of yeasts. Tech. Bull. Nr. 1029 Dep. Agr., Washington D.C.