Distribution of Fluorescent Pseudomonas spp. Causing Grain and Sheath Discoloration of Rice in Latin America
- 1 January 1987
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 71 (10) , 896-900
- https://doi.org/10.1094/pd-71-0896
Abstract
Pathogenic fluorescent Pseudomonas spp. were isolated from discolored rice seed and flag-leaf sheath samples received from Argentina, Bolivia, Brazil, Burundi, Chile, China, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador Guatemala, Jamaica, Nicaragua, Panama, Peru, Philippines, Surinam, and Uruguay. No such pathogens were recovered from samples received from Thailand. Pseudomonas syringae pv. syringae (=P. oryzicola) was found only in Chilean samples, whereas all the others yielded bacteria consistent with P. fuscovaginae. Antisera developed from P. fuscovaginae were not completely specific for this species, reacting as well with strains from Chile tentatively identifed as P. syringae pv. syringae. However, the relationship between pathogenicity of strains and positive serological reaction was very high. The antisera were successfully used to increase the efficiency of pathogen isolation from diseased plant tissue. The presence of these pathogens and the dirty panicle disease of rice are correlated; however, not all cases of discolored grain should be ascribed to these pathogens.This publication has 1 reference indexed in Scilit:
- Bergey's Manual of Systematic Bacteriology, Volume 1.: Edited by Noel R. Krieg. The Williams & Wilkins Co., Baltimore, 1984, 964 pp. $80.00.International Journal of Systematic and Evolutionary Microbiology, 1985