G.H. Shahidi Bonjar
Department of Plant Pathology, College of Agricultural Sciences, Bahonar University of Kerman, Iran
S. Zamanian
Department of Plant Pathology, College of Agricultural Sciences, Bahonar University of Kerman, Iran
S. Aghighi
Department of Plant Pathology, College of Agricultural Sciences, Bahonar University of Kerman, Iran
P. Rashid Farrokhi
Department of Agronomy and Plant Breeding, College of Agricultural Sciences, Bahonar University of Kerman, Iran
M. J. Mahdavi
Iranian Academic Centre for Education, Culture and Research, Bahonar University Branch, Kerman, Iran
I. Saadoun
Department of Applied Biology, Jordan University of Science and Technology, Irbid, Jordan
ABSTRACT
Ralstonia solanacearum has worldwide economical importance because of its destructive and soil-borne nature. Clearly chemical measures have lost their attractiveness because of development of resistant strains and undesirable effects on our environment. Consequently, biological control of pathogens is gaining great importance worldwide. To investigate for proper biocontrol agents and to obtain antibacterial antagonists from Iranian soil Actinomycetes, a vast survey was performed. Over 170 isolates of soil Actinomycetes were isolated and screened among which one isolate showed high level of activity in Agar disk and Well diffusion methods against R. solanacearum. It was identified as Streptomyces coralus strain 63. High concentration of antibacterial agent was detected at 8-11th day in shake cultures. Longevity in vitro of the active crude in soluble state determined about 40 days at room temperature. In thermal inactivation point studies, active crude retained activity up to 93°C. Antibacterial activity of the antagonists found in this study highlights their importance as candidates for further investigation in biological control of tested pathogenic bacteria.
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How to cite this article
G.H. Shahidi Bonjar, S. Zamanian, S. Aghighi, P. Rashid Farrokhi, M. J. Mahdavi and I. Saadoun, 2006. Antibacterial Activity of Iranian Streptomyces coralus Strain 63 Against Ralstonia solanacearum. Journal of Biological Sciences, 6: 127-129.
DOI: 10.3923/jbs.2006.127.129
URL: https://scialert.net/abstract/?doi=jbs.2006.127.129
DOI: 10.3923/jbs.2006.127.129
URL: https://scialert.net/abstract/?doi=jbs.2006.127.129
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karthi Reply
good and nice