Interest in Serological Techniques for the Detection and Identification of Phoma Exigua, the Agent of Potato Gangrene
Potato gangrene is an important storage disease of potatoes. The responsible fungus is Phoma exigua. The two varieties of this fungus, P. exigua and P. foveata can induce necrotic lesions on tubers, but P. exigua var. foveata is responsible for most damage. Early detection of infection and precise and rapid identification of the fungus variety are of major interest. So far, differentiation of the varieties have relied on biochemical tests and specific production of a brown pigment in the P. foveata cultures. Our attempts were to develop serological tests both for the detection of P. exigua and differentiation of the 2 varieties.