Aae, an autotransporter involved in adhesion of Actinobacillus actinomycetemcomitans to epithelial cells.

The periodontal pathogen Actinobacillus actinomycetemcomitans possesses myriad virulence factors, among them the ability to adhere to and invade epithelial cells. Recent advances in the molecular manipulation of this pathogen and the sequencing of strain HK 1651 (http://www.genome.

Effect of Incubation Temperature on Repair of Heat-Injured Listeria in Milk.

Heat-injured Listeria species were examined for their ability to repair in pasteurized whole and 2% (fat) bovine milk. Listeria monocytogenes F5069 (serotype 4B) and F5027 (serotype 1/2a) and Listeria innocua CWD139 were heated at 55°C. After 20 min, 99% of the surviving population was injured as determined by their inability to grow in the presence of 4% NaCl.