A F El-Helaly

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The physiological characteristics, pathogenic propensities, and the sensitivity towards certain antibiotics of the causal bacterium of stalk rot of maize, isolated in Egypt, were studied. Different isolates of Erwinia carotovora and E. atroseptica were included for comparative studies. The antibiotic sensitivity tests (including erythromycin) are of no(More)
The tested isolates of Erwinia chrysanthemi (corn pathotype) and E. carotovora constitutively produce high levels of cellulase(s) (Cx) in presence or absence of carboxymethyl-cellulose (CMC) as substrate in the medium. The tested isolates of E. atroseptica produced high levels of cellulase when grown in presence of both carboxymethyl-cellulose (CMC) and(More)
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