EPPO Global Database

EPPO Reporting Service no. 07 - 1993 Num. article: 1993/122

Disease of radish caused by a MLO

In France a new disease of radish seed plants has been reported. The disease is characterized by considerable malformations of the flowers involving complete sterility. Transmission electron microscopy revealed the presence of numerous MLOs, of 50-100 nm size, in the sieve tubes of the affected plants. The disease was found for the first time in 1992 in Bouches-du-Rh“ne, but similar symptoms have been reported earlier from other cruciferous crops, such as cabbage and rape seed, under the name of virescence.


Bonnet, A.; Delecolle, B. (1993) Les organismes de type mycoplasme attaquent aussi les porte-graines de radis.
Phytoma (FR) No. 451, 37-38.