1887

Abstract

Summary: Nutritional experiments were carried out dealing with: (1) the utilization of sulphur compounds; (2) the utilization of phosphorus compounds;

(3) the action of different mineral salts and their interaction. The results showed that grew well at 28° and pH 6·6 incubated for 20 days; grew well at 28° and pH 6·6 for 17 days; and at 20° and pH 4·5 for 16 days. In the adjusted controlled medium pH changes were generally within one pH unit. The best carbon and nitrogen sources are stated. The only satisfactory sulphur sources for were sodium sulphate and sodium thiosulphate. These compounds were also among the best S sources for and but a number of other compounds also were utilized equally well, e.g. sodium metabisulphite, sodium sulphite, a-cysteine, sodium sulphide, sodium dithionite and methionine. For all organisms the best phosphorus sources were sodium dihydrogen orthophosphate, sodium metaphosphate and lecithin. Rate of utilization of the phosphorus was an important factor in mycelial yield. Factorial experiments were carried out in which and were incubated at 28° for 17 days. Statistical analysis of the results showed that under the given conditions optimal growth measured as mg. dry wt. was obtained in liquid media containing glucose, 25 g./l.; -asparagine, 4·0 g./l.; FeSO.7HO, 0·001 g./l.; thiamine, 0·8 mg./l.; ZnSO.7HO, 1 p.p.m.; HMoO, CuSO. 5HO, 0·02 p.p.m.; with varying amounts of KHPO, MgSO.7HO and CaSO.2HO for the different species specified. There was a balance between all combinations of KHPO, MgSO.7HO and CaSO.2HO for but not for but there were significant interactions between the salts taken two at a time for both these fungi. There was interaction for all three salts together for both species. and are more exacting in their nutritional requirements than

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1964-07-01
2021-10-21
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References

  1. Cantino E. C. 1955; Physiology and phylogeny in the water moulds. Quart. Rev. Biol 30:138
    [Google Scholar]
  2. Fothergill P. G., Ashcroft R. 1955; The nutritional requirements of Venturia inaequalis . J. gen. Microbiol 12:387
    [Google Scholar]
  3. Fothergill P. G., Hide D. 1962; Comparative nutritional studies of Pythium species. J. gen. Microbiol 29:325
    [Google Scholar]
  4. Fothergill P. G., Jones M. 1958; Nutritional studies of some Zygorhynchus species. J. gen. Microbiol 19:298
    [Google Scholar]
  5. Fothergill P. G., Raine L. C. D. P. 1954; The mineral nutritional requirements of Mucor hiemalis Wehm. J. gen. Microbiol 10:17
    [Google Scholar]
  6. Fothergill P. G., Yeoman M. M. 1957; The mineral nutrition of Rhizopus stolonifera . J. gen. Microbiol 17:631
    [Google Scholar]
  7. Hall A. M. 1959; The culture of Phytophthora infestans in artificial media. Trans. Brit, mycol. Soc 42:15
    [Google Scholar]
  8. Hide D. 1961 Nutritional studies on some members of the genus Pythium Thesis University of Durham:
    [Google Scholar]
  9. Lopatecki L. E., Newton W. 1956; The nutrition of Phytophthora. Can. J. Bot 34:151
    [Google Scholar]
  10. Mehrotra B. S. 1950; Physiological studies on some members of the genus Phytophthora 2.Sulphur requirements . Allahabad Univ. Stud
    [Google Scholar]
  11. Payette E., Perrault C. 1944; Action de la thiamine sur le Phytophthora infestans (Mont.) de Bary. Can. J. Res. (Sect. C, Bot. Sci.) 22:127
    [Google Scholar]
  12. Robbins W. J. 1937; The assimilation by plants of various forms of nitrogen. Am. J. Bot 24:243
    [Google Scholar]
  13. Sakai R. 1955; Physiological studies on Phytophthora infestans (Mont.) de Bary, part 2, Nitrogen sources. Ann. phytopath. Soc. Japan 19:141
    [Google Scholar]
  14. Sakai R. 1956; Physiological studies of Phytophthora infestans (Mont.) de Bary, part 1. Abstr. Rev. Mycol 70:99
    [Google Scholar]
  15. Snedecor G. W. 1946 Statistical Methods, 4th ed. Iowa State College Press;
    [Google Scholar]
  16. Steinberg R. A. 1941; Sulphur and trace element nutrition of Aspergillus niger . J. agric. Res 63:109
    [Google Scholar]
  17. Talley P. J., Blank L. M. 1941; A critical study of the nutritional requirements of Phymatotrichum omnivorum . Plant Physiol 16:1
    [Google Scholar]
  18. Volkonsky M. 1933; Sur l’assimilation des sulphats par les champignons. Annls Inst. Pasteur, Paris 50:703
    [Google Scholar]
  19. Yeoman M. M. 1954 The mineral nutrition and phosphorus metabolism ofRhizopus stoloni-fera Thesis University of Durham:
    [Google Scholar]
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