USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON
Hussein, E., Aly, A., Abdel-Sattar, M., Omar, M. (2008). USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON. EKB Journal Management System, 33(3), 1927-1942. doi: 10.21608/jpp.2008.131664
E. M. Hussein; A. A. Aly; M. A. Abdel-Sattar; M. R. Omar. "USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON". EKB Journal Management System, 33, 3, 2008, 1927-1942. doi: 10.21608/jpp.2008.131664
Hussein, E., Aly, A., Abdel-Sattar, M., Omar, M. (2008). 'USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON', EKB Journal Management System, 33(3), pp. 1927-1942. doi: 10.21608/jpp.2008.131664
Hussein, E., Aly, A., Abdel-Sattar, M., Omar, M. USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON. EKB Journal Management System, 2008; 33(3): 1927-1942. doi: 10.21608/jpp.2008.131664

USE OF ANTIGENIC RELATIONSHIPS TO DIFFERENTIATE AMONG ISOLATES OF Macrophomina phaseolina AND TO STUDY THEIR PATHOGENICITY ON COTTON

Journal of Plant Production
Article 12, Volume 33, Issue 3, March 2008, Page 1927-1942  XML PDF (1.02 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2008.131664
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Authors
E. M. Hussein1; A. A. Aly1; M. A. Abdel-Sattar2; M. R. Omar1
1Plant Pathology Research Institute, Agric. Res. Center, Giza, Egypt.
2Dept. of Agric. Bot., Faculty of Agric., Suez Canal Univ., Ismailia, Egypt.
Abstract
       Isolates of Macrophomina phaseolina were classified into groups by cluster analysis based on their antigenic composition; however, grouping the isolates was not related to their virulence, geographic origin, or host. Cotton cultivar Giza 75 and the most pathogenic isolates from cotton were placed in a separate cluster based on their antigenic composition. The relationship between common antigens, shared by Giza 75 and cotton isolates, and pathogenicity of these isolates was quantified by correlation and regression analyses. There was a positive significant correlation (r = 0.91, p < 0.05) between simple matching coefficient (SSM), established between M. phaseolina isolates and Giza 75, and pathogenicity of the isolates on this cultivar. The regression model indicated that SSM accounted for 84% of the total variation in pathogenicity of the isolates. These results imply that the common antigenic determinants shared by cotton and M. phaseolina isolates are related to severity of charcoal rot.
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