Protection of Rhizobium by bentonite clay against predation by flagellates in liquid cultures
1991
Heijnen, C.E. | Hok-A-Hin, C.H. | Veen, J.A. van
Bentonite clay strongly hampered the activity of the flagellate Bodo saltans in liquid culture, and thereby improved the survival of Rhizobium. A possible coating of bacteria and/or flagellates did not seem to play a part in protecting rhizobia from flagellates. Bentonite did not release any substances toxic to B. saltans during the incubation period. It is suggested that, in liquid cultures, bentonite clay increases the minimum level to which rhizobia can be predated upon. thereby giving rise to the presence of higher rhizobial cell concentrations at the end of the incubation period.
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