Complex sentence: The former induces aggregation of the histamine kinase sensor in two-component signalling, and the latter disrupts the synthesis of AHL by blocking the enoyl-acyl carrier protein (ACP) reductase.
Split into simpler sentences: The former induces aggregation of the histamine kinase sensor in two-component signalling. The latter disrupts the synthesis of a class of signalling molecules known as "N"-acyl homoserine lactones (AHLs) by blocking the enoyl-acyl carrier protein (ACP) reductase.