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Front Matter (R1-R5)

Pathogens and Host: The Dance is the Same, the Couples are Different (1-2)

Striking a Balance: Modulation of the Actin Cytoskeleton by Salmonella (3-10)

Structure and Function of Pectic Enzymes: Virulence Factors of Plant Pathogens (11-18)

Pseudomonas syringae Hrp Type III Secretion System and Effector Proteins (19-26)

Molecular and Cell Biology Aspects of Plague (27-32)

A Framework for Interpreting the Leucine-rich Repeats of the Listeria Internalins (33-37)

Acyl-homoserine Lactone Quorum Sensing in Gram-negative Bacteria: A Signaling Mechanism Involved in Associations with Higher Organisms (38-42)

Phenotypic Variation and Intracellular Parasitism by Histoplasma capsulatum (43-47)

Exploitation of Host Cells by Enteropathogenic Escherichia coli (48-55)

Genetic Complexity of Pathogen Perception by Plants: The Example of Rcr3, a Tomato Gene Required Specifically by Cf-2 (56-63)

Plants and Animals Share Functionally Common Bacterial Virulence Factors (64-70)

Role of the Cystic Fibrosis Transmembrane Conductance Regulator in Innate Immunity to Pseudomonas aeruginosa Infections (71-77)

Bad Bugs and Beleaguered Bladders: Interplay Between Uropathogenic Escherichia coli and Innate Host Defenses (78-84)

AvrPto-dependent Pto-interacting Proteins and AvrPto-interacting Proteins in Tomato (85-89)

Reactive Oxygen and Nitrogen Intermediates in the Relationship Between Mammalian Hosts and Microbial Pathogens (90-97)

Nitric Oxide and Salicylic Acid Signaling in Plant Defense (98-104)

The Role of Antimicrobial Peptides in Animal Defenses (105-110)

Suramin Inhibits Initiation of Defense Signaling by Systemin, Chitosan, and a ß-glucan Elicitor in Suspension-cultured Lycopersicon Peruvianum Cells (111-116)