Temperature effects on Clavibacter michiganensis subsp. sepedonicus
Temperature effects on the survival of Clavibacter michiganensis subsp. sepedonicus (EPPO A2 list) were investigated in Canada.
Bacteria colonizing burlap, a packing material consisting of jute and hemp, were subjected to freezing temperatures. The pathogen survived and remained infectious for 53 months at temperatures of -20 to -40° C. The pathogen also survived fluctuating temperatures of -40 to +5° C and -40 to +25° C for 23 months. However, at temperatures of constant +25° C Clavibacter michiganensis subsp. sepedonicus survived only 12 months.
Nelson, G.A.; Kozub, G.C. (1990) Survival of Corynebacterium sepedonicum at freezing and wide temperature fluctuations between freezing and above freezing temperatures.
American Potato Journal 67, 625-631.