FIG. 4.

Inhibition of free-living and particle-attached bacteria according to phylogenetic groups. Eighty-six marine bacterial isolates belonging to the α-proteobacterial (Alpha), Bacteroidetes (Bactero.), Alteromonadales (Altero.), and Vibrionales (Vibrio.) groups were examined for sensitivity to inhibitory molecules produced by at least one other isolate. (A) Free-living targets; (B) particle-associated targets. Cross-hatched columns, free-living producers (F); solid columns, particle-associated producers (P).