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Mycopathologia

, Volume 98, Issue 2, pp 69–75 | Cite as

Interaction between pathogenic and saprobic fungi isolated from soybean roots and seeds

  • J. B. Manandhar
  • P. N. Thapliyal
  • K. J. Cavanaugh
  • J. B. Sinclair
Article

Abstract

A variety of interactions was recorded in culture between 11 saprobic fungi isolated from soybean (Glycine max) roots and seeds and the soybean pathogens Cercospora sojina, Colletotrichum truncatum, Macrophomina phaseolina, Phomopsis sojae, and Septoria glycines. The most active saprobes were Aspergillus terreus, Chaetomium cupreum, Epicoccum nigrum, Gliocladium roseum, Myrothecium roridum, Penicillium thomii, and Trichothecium roseum. Hyphal lysis of several fungal pathogens by Acremonium sp., C. cupreum and P. thomii was recorded perhaps because of parasitism by G. roseum and T. roseum. In greenhouse studies, seeds coated with G. roseum, P. thomii, and T. harzianum emerged significantly (P=0.05) more than those coated with A. terreus and the control. In field studies, seeds coated with a conidial suspension of A. terreus, G. roseum, P. thomii or Trichoderma harzianum produced a significantly greater stand than the control. The area of cotyledons covered with lesions caused by C. truncatum was significantly less on seeds coated with G. roseum, P. thomii and T. harzianum than the control.

Keywords

Glycine Aspergillus Fungal Pathogen Penicillium Trichoderma 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1987

Authors and Affiliations

  • J. B. Manandhar
    • 1
  • P. N. Thapliyal
    • 2
  • K. J. Cavanaugh
    • 3
  • J. B. Sinclair
    • 3
  1. 1.Department of AgricultureDivision of Plant PathologyKhumaltar, LalitpurNepal
  2. 2.Department of Plant PathologyG. B. Pant University of Agriculture and TechnologyPantnagarIndia
  3. 3.Department of Plant PathologyUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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