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Pseudomonas syringae
a travelling plant pathogenic bacterium
The bacteriology team has proposed an expanded new life cycle for the plant pathogen P. syringae extending from agro-systems to non agricultural habitats, via the water cycle.
These investigations open exciting questions about the evolution of plant pathogens beyond the conventional borders of agriculture.
© Plant pathology, INRA Avignon
Ecology of Pseudomonas syringae
The bacteriology team is investigating the intriguing ecology of this bacterium, causal agent of bacterial blight of cantaloupe. Wild plants, water, snow and clouds are among its diverse ecological niches. Modeling of the dissemination of this bacterium in the environnement via the water cycle represents one axe of their research. Their long term goal is to elucidate how P. syringae survives and competes in non agricultural habitats so as to gain insight into its overall capacity to resist stress.
Epidemiology of bacterial blight of cantaloupe
The current studies on the ecology of P. syringae are the outcome to investigations on the epidemiology of bacterial blight of cantaloupe. Severe epidemic outbreaks in south-western France lead to the creation of a national working group, consisting of representatives of the bacteriology laboratory and professional organizations. Research has led to the elucidation of potential inoculum sources of P. syringae and to the identification of climate conditions favourable for disease epidemics. These discoveries will potentially lead to insight on new means of control compatible with sustainable production of cantaloupe.
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See also
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