Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
PCR testing of the markers on a set of 48 worldwide isolates for verification of their reported formae speciales
“Non-pathogenic” means not pathogenic toward any of the seven hosts listed in Table 1.
“Non-pathogenic” means no symptom development in susceptible plant hosts of the originally reported forma specialis.
