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Paper Information

Journal:   AGRICULTURAL SCIENCES AND TECHNOLOGY   2007 , Volume 21 , Number 1 (SPECIAL ISSUE IN PLANT PROTECTION); Page(s) 25 To 38.
 
Paper: 

BIOLOGICAL CONTROL OF CANOLA RHIZOCTONIA DAMPING OFF WITH BACILLUS SUBTILIS AND STREPTOMYCES SP.

 
 
Author(s):  SARANI SH., SHARIFI TEHRANI A., AHMADZADEH M., JAVAN NIKKHAH M.
 
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Abstract: 
In this study, 137 bacterial isolates were collected from canola root and rhizosphere in Golestan, Mazandaran, Guilan and Tehran provinces. At first, antagonistic effect of bacterial isolates on Rhizoctonia solani was studied using dual culture test assay. The results showed that 29 isolates had the ability to inhibit the growth of fungi on PDA medium. On the basis of the biochemical, physiological and morphological tests, the isolates B1 and B2 were identified as Bacillus subtilis and S1 as Streptomyces sp.
Results of the studies on biocontrol mechanism showed that isolates producing antibiotics prevented mycelial growth of the fungus. These isolates also produced some antimicrobial metabolites including protease and siderophore. Isolate B1 had the greatest inhibitory effect in vitro growth of the fungus. The effect of isolates on disease reduction in comparison to control was significantly different. None of the isolates could completely prevent disease occurrence.
Application of soil treatment had a significantly higher disease control as compared to seed treatment. Isolate B1 had considerable effect on disease reduction under the greenhouse conditions.
Also all isolates were capable of colonizing canola roots and increasing canola growth in free causal agent conditions.
 
Keyword(s): ANTAGONISTIC BACTERIA, BIOLOGICAL CONTROL, CANOLA, RIZOCTONIA SOLANI
 
 
References: 
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Click to Cite.
APA: Copy

SARANI, S., & SHARIFI TEHRANI, A., & AHMADZADEH, M., & JAVAN NIKKHAH, M. (2007). BIOLOGICAL CONTROL OF CANOLA RHIZOCTONIA DAMPING OFF WITH BACILLUS SUBTILIS AND STREPTOMYCES SP.. AGRICULTURAL SCIENCES AND TECHNOLOGY, 21(1 (SPECIAL ISSUE IN PLANT PROTECTION)), 25-38. https://www.sid.ir/en/journal/ViewPaper.aspx?id=273857



Vancouver: Copy

SARANI SH., SHARIFI TEHRANI A., AHMADZADEH M., JAVAN NIKKHAH M.. BIOLOGICAL CONTROL OF CANOLA RHIZOCTONIA DAMPING OFF WITH BACILLUS SUBTILIS AND STREPTOMYCES SP.. AGRICULTURAL SCIENCES AND TECHNOLOGY. 2007 [cited 2021May11];21(1 (SPECIAL ISSUE IN PLANT PROTECTION)):25-38. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273857



IEEE: Copy

SARANI, S., SHARIFI TEHRANI, A., AHMADZADEH, M., JAVAN NIKKHAH, M., 2007. BIOLOGICAL CONTROL OF CANOLA RHIZOCTONIA DAMPING OFF WITH BACILLUS SUBTILIS AND STREPTOMYCES SP.. AGRICULTURAL SCIENCES AND TECHNOLOGY, [online] 21(1 (SPECIAL ISSUE IN PLANT PROTECTION)), pp.25-38. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273857.



 
 
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