Compounds affecting predation by and viability of predatory bacteria.

Bdellovibrio-and-like organisms (BALOs) are a small group of bacteria that actively predate on other Gram-negative bacterial species. Although viewed mostly in a positive light, such as their potential use as living antibiotics to reduce pathogenic strain populations, several studies have also highlighted the need to control their activities, such as in the production of biodiesel. Consequently, this mini-review discusses research being conducted to characterize compounds and environmental settings that influence predation rates and the mechanisms by which they accomplish this, with a heavy emphasis on studies published within the last decade.

Enhanced sensitivity and responses to viologens from a whole-cell bacterial bioreporter treated with branched polyethyleneimines.

Aims: Evaluate the use of polyethyleneimines (PEIs) as membrane permeabilizers to improve the responses and sensitivity of a bacterial bioreporter strain to viologens.

Methods And Results: The responses from E. coli str.