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.
Xylella fastidiosa mutant characteristics. (A) Light micrograph of X. fastidiosa mutant 1A2 colony on agar medium with a well-demarcated fringeless periphery. (B) Sequential images (0 min and 20 h 19 min, respectively) depicting progressive expansion of the 1A2 colony (see movie 1B in the supplemental material; also see expanded versions and additional movies at http://www.nysaes.cornell.edu/pp/faculty/hoch/movies/). Bar, 20 μm.
