Skip to main content
SpringerLink
Log in

Carbon and nitrogen requirements of Fusarium oxysporum causing cotton wilt

  • Published:
Mycopathologia et mycologia applicata Aims and scope Submit manuscript

Summary

The present work was carried out to study the nutritional requirements of the cotton wilt-inducing fungus, i.e.Fusarium oxysporum on a synthetic liquid medium with regard to the carbon and nitrogen sources at varying concentrations in terms of the average mycelial dry weights.

The optimum carbon requirements of the fungus ranged from 7000–8000 p.p.m. irrespective of the carbon source used in experiment. Carbon utilization was best on sucrose followed by maltose, starch, glucose, fructose and cellulose successively.

The optimum nitrogen requirements of the fungus were 300 p.p.m. of nitrogen in the medium; nitrogen utilization was best on using nitrate-nitrogen followed by glycine, glutamic acid, ammonium nitrate, asparagine and ammonium sulphate.

Maximum growth of the fungus took place on media containing a C/N ratio ranging between 22.8 and 25.7.

Colour formation is correlated with varying either source or concentration of nitrogen and not carbon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Brown, W. (1925) A study of forms ofFusarium occurring on apple fruits. Imper. Bot. Conf. London, 339–346.

  • Brown, W. (1925) Studies in the genusFusarium. II An analysis of factors which determine the growth-forms of certain strains. Ann. of Bot., xxxix,154, 373–408.

    Google Scholar 

  • Brown, W. &Horne, A. S. (1924) Studies of the genusFusarium. Ann. of Bot., xxxviii,150, 379–383.

    Google Scholar 

  • Lilly, V. G. &Barnett, H. L. (1951) Physiology of Fungi, McGraw-Hill Book Co. New York.

    Google Scholar 

  • Moore, S. (1924) The physiology ofFusarium Coeruleum. Ann. of Bot., xxxviii,149, 137–161.

    Google Scholar 

  • Robbins, W. J. (1937) The assimilation by plants of various forms of nitrogen. Amer. J. Bot.,24, 243–250.

    Google Scholar 

  • Robbins, W. J. &Kavanagh, F. (1942) Hypoxanthine, a growth substance forPycomyces. Proc. Nat. Acad. Sci. U. S.28, 65–69.

    Google Scholar 

  • Sharoubeem, H. H. &Naim, M. S. (1962a) Effect ofFusarium oxysporum (Schelcht) on the mineral nutrition of certain varieties of the Egyptian cotton. The Third Cotton Conference (in press).

  • Sharoubeem, H. H. &Naim, M. S. (1962b) The effect of mineral elements on the growth ofFusarium oxysporum. Ain Shams Sci. Bull.7, (in press).

Download references

Author information

Authors and Affiliations

  1. Botany Department, Faculty of Science, Ain Shams University Abbasia, Cairo

    M. S. Naim & H. H. Sharoubeem

Authors
  1. M. S. Naim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. H. Sharoubeem
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Naim, M.S., Sharoubeem, H.H. Carbon and nitrogen requirements of Fusarium oxysporum causing cotton wilt. Mycopathologia et Mycologia Applicata 22, 59–64 (1964). https://doi.org/10.1007/BF02058734

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02058734

Keywords

Search

Navigation