Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Clavibacter michiganensis subsp. michiganensis, a seedborne tomato pathogen: healthy seeds are still the goal.

Abstract

This paper aims: (i) to review the progress on tomato bacterial canker, the role of infected or infested seeds, and of local sources of inoculum in disease outbreaks, highlighting recent records; (ii) to provide an overview of plant health regulations, especially with respect to standard protocols for testing seeds for C. michiganensis subsp. michiganensis; and (iii) to update information regarding research innovations and future perspectives on new, useful tools (including serological and molecular methods) for detecting seed contamination by C. michiganensis subsp. michiganensis that can aid in designing new strategies to improve its control. The symptoms, disease cycle and molecular epidemiology of bacterial canker are described, as well as the quarantine regulations for C. michiganensis subsp. michiganensis. Discussions on tomato seed production, sanitation and testing are also included.