Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Biological Sciences
  Year: 2008 | Volume: 8 | Issue: 7 | Page No.: 1187-1192
DOI: 10.3923/jbs.2008.1187.1192
Potential of a Soil-Borne Streptomyces hygroscopicus for Biocontrol of Anthracnose Disease Caused by Colletotrichum gloeosporioides in Orchid
B. Prapagdee, U. Akrapikulchart and S. Mongkolsuk

Abstract:
The aims of this study are to isolate the antagonist from rhizosphere soil and evaluate its potential for biocontrol of anthracnose disease in orchid. The potential microbial antagonist, designated SRA14, was isolate and identified as Streptomyces hygroscopicus. Cell-free culture filtrates of Streptomyces hygroscopicus SRA14 inhibited the growth of Colletotrichum gloeosporioides. The percentage of growth inhibition by the stationary culture filtrate was significantly higher than that of exponential-culture filtrate. Additionally, morphological changes such as hyphal swelling and abnormal shapes were observed in fungi grown on potato dextrose agar that contained the culture filtrates. Application of culture filtrates was able to prevent the expression of anthracnose disease on orchid, indicating that disease inhibition was due to antifungal metabolites in the culture filtrates. No significantly the prevention of anthracnose development was observed in the stationary culture filtrate and mancozeb-treated leaves. Present data suggested the stationary culture filtrate of SRA14 can be used as biofungicide for control of anthracnose diseases in Dendrobium orchid.
 [Fulltext PDF]   [Fulltext HTML]   [XML: Abstract + References]   [References]   [View Citation]  [Report Citation]
How to cite this article:

B. Prapagdee, U. Akrapikulchart and S. Mongkolsuk, 2008. Potential of a Soil-Borne Streptomyces hygroscopicus for Biocontrol of Anthracnose Disease Caused by Colletotrichum gloeosporioides in Orchid. Journal of Biological Sciences, 8: 1187-1192.

DOI: 10.3923/jbs.2008.1187.1192

URL: https://scialert.net/abstract/?doi=jbs.2008.1187.1192

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

Curve Bottom