Studies of infection with xanthomonas campestris pv. vesicatoria, causal agent of bacterial scab of pepper in Israel

S. Diab; Y. Bashan; Y. Okon

doi:10.1007/BF02994527

Studies of infection with xanthomonas campestris pv. vesicatoria, causal agent of bacterial scab of pepper in Israel

S. Diab^*, Y. Bashan, Y. Okon

^*Corresponding author for this work

Department of Plant Pathology and Microbiology

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Xanthomonas campestris pv. vesicatoria, the causal agent of bacterial scab of pepper, was isolated in several regions in Israel. When artificial inoculation was practiced, pathogen growth was enhanced by high temperatures (30-36°C), and an inoculum concentration of 10^p6 colony-forming units (CFU) per ml was optimal for symptoms to develop on plants. Pre-inoculation treatments such as wounding the leaves by rubbing them with carborundum powder or spraying them with diluted wax solvents, markedly increased disease severity, but were not essential. Pre-inoculation conditioning at two different relative humidity levels (R.H. = 100% or R.H. < 40%) did not affect disease severity. Young leaves were more severely affected following infection than older leaves. Disease severity was similar with several isolates of X. campestris pv. vesicatoria.

Original language	English
Pages (from-to)	183-191
Number of pages	9
Journal	Phytoparasitica
Volume	10
Issue number	3
DOIs	https://doi.org/10.1007/BF02994527
State	Published - Sep 1982

Keywords

bacterial scab of pepper
bacterial spot of pepper
Capsicum annum
Epidemiology
infection studies
Xanthomonas campestris pv. vesicatoria

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10.1007/BF02994527

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title = "Studies of infection with xanthomonas campestris pv. vesicatoria, causal agent of bacterial scab of pepper in Israel",

abstract = "Xanthomonas campestris pv. vesicatoria, the causal agent of bacterial scab of pepper, was isolated in several regions in Israel. When artificial inoculation was practiced, pathogen growth was enhanced by high temperatures (30-36°C), and an inoculum concentration of 10p6 colony-forming units (CFU) per ml was optimal for symptoms to develop on plants. Pre-inoculation treatments such as wounding the leaves by rubbing them with carborundum powder or spraying them with diluted wax solvents, markedly increased disease severity, but were not essential. Pre-inoculation conditioning at two different relative humidity levels (R.H. = 100% or R.H. < 40%) did not affect disease severity. Young leaves were more severely affected following infection than older leaves. Disease severity was similar with several isolates of X. campestris pv. vesicatoria.",

keywords = "bacterial scab of pepper, bacterial spot of pepper, Capsicum annum, Epidemiology, infection studies, Xanthomonas campestris pv. vesicatoria",

author = "S. Diab and Y. Bashan and Y. Okon",

year = "1982",

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AU - Okon, Y.

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KW - bacterial spot of pepper

KW - Capsicum annum

KW - Epidemiology

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Studies of infection with xanthomonas campestris pv. vesicatoria, causal agent of bacterial scab of pepper in Israel

Abstract

Keywords

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