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.
Microscopic observation on the longitudinal section of bayberry resistant (a,c,e,g) and susceptible (b,d,f,h) cultivars after 0, 6, 48 and 72 h of pathogen infection. The red circle represents phloem and xylem, while the green circle represents medulla.
