Bacterial Leaf Symbiosis in Angiosperms: Host Specificity without Co-Speciation Lemaire, Benny ; Vandamme, Peter ; Merckx, Vincent ; Smets, Erik ; Dessein, Steven Abstract Publication: PLoS ONE Pub Date: September 2011 DOI: 10.1371/journal.pone.0024430 Bibcode: 2011PLoSO...624430L