, Volume 28, Issue 3, pp 241–248 | Cite as

Cultural and physiological studies of phytophthora palmivora butl. Causing fruit rot of achras sapota L.

  • Vasant Gurunath Rao
  • M. K. Desai
  • N. B. Kulkarni


The paper deals with some cultural and physiological studies of a strain ofPhytophthora palmivoraButler, causing fruit rot ofAchras sapota L. Among the various culture media studied, oat meal, corn meal, lima bean and rice meal agars were the best ones, with abundant growth and sporulation of the organism. Lactose, galactose, dextrin and glycogen were the best sources of carbon. Among the various nitrogenous compounds studied, ammonium phosphate (monobasic), ammonium sulphate, ammonium tartrate, ammonium lactate, asparagin, glycine and glutamic acid were the best ones utilized by the organism. A pH of 5.9 was found to be the optimum for the growth and sporulation.


Corn Lactose Galactose Glutamic Acid Asparagin 


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  1. Leonian, L. H. (1925). Physiological studies on the genusPhytophthora. West Virginia agric. Expt. Sta. Sci. Paper11 444–498.Google Scholar
  2. Lilly, V. G. &Barnett, H. L. (1951). Physiology of the Fungi, Mc. Graw-Hill Book Company. Inc. New York.Google Scholar
  3. Mehrotra, B. S. (1952). Physiological Studies in somePhytophthoras-III. Carbon requirements. Rev. appl. Mycol.31 199.Google Scholar
  4. Newton, W. &Lapatecki, L. E. (1954). The nutrition ofPhytophthora species. Rev. appl. Mycol.32 312.Google Scholar
  5. Rao, V. G. (1960). Fruits rots of Chiku (Achras sapota L.) and Sitaphal (Anona squamosa L.), two hitherto unrecorded diseases in Bombay State caused byPhytophthora palmivora Butler andPhytophthora parasitica Dastur. var.macrospora Ashby, respectively. M. Sc. (Agri.) Thesis, pp. 96, plates 11, University of Poona, India (unpublished).Google Scholar
  6. Rao, V. G., Desai, M. K. &Kulkarni, N. B. (1962). A newPhytophthora fruit rot ofAchras sapota, from India. Plant Dis. Reptr.46 (5): 381–382.Google Scholar
  7. Rao, V. G. (1963). The genusPhytophthora in Bombay-Maharashtra. J. Univ. Poona Sci. Tech. Sect.24 55–60.Google Scholar
  8. Saksena, R. K. &Bhargava, K. S. (1943). Nitrogen requirements and vitamin deficiencies ofPhytophthora phaseoli Thaxter. Proc. Indian Acad. Sci. B18 2: 45–51.Google Scholar
  9. Volkonsky, M. (1934). Sur la nitrition de quelques champignons saprophytes et parasites. Ann. Inst. Pasteur52 76–101.Google Scholar
  10. Wills, W. H. (1955). The utilization of carbon and nitrogen compounds byPhytophthora parasitica Dastur var.nicotianae (Breda de Haan) Tucker. Abs. Rev. appl. Mycol.34 822–823.Google Scholar

Copyright information

© Dr. W. Junk N.V. 1966

Authors and Affiliations

  • Vasant Gurunath Rao
    • 1
  • M. K. Desai
    • 1
  • N. B. Kulkarni
    • 1
  1. 1.Plant Pathology Labs.College of AgriculturePoona-5India

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