Biological studies on bacteria pathogenic to melons in Egypt caused by Erwinia carotovora (Jones) holland, F. Citrullis sizova [Egypt]
1985
Saleh, Y.E. | Naguib, M.I. | El-Hendawy, H.H. (Cairo Univ. (Egypt). Faculty of Science)
The pathogenic bacterium E. carotovora f. citrullis was found in different localities in Egypt. This is the first report of the pathogen outside USSR. The pathogen is responsible for spotting, wilting and rotting of fruits of melon plants. It was found in association with E. carotovora v. carotovora and they caused great damage to melon crops in some instances wilting affected as many as 75% of the plants. This pathogen was identified and compared in biological, biochemical, and serological characteristics with a known culture (777a), isolated by Saleh (1977) from Ukrainian SSR. The virulance of the pathogen was lost after storage on synthetic media. E. carotovora f. citrullis lacked proto-pectolytic activity and tolerated high temperatures (up to 47 C.)
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