Scientists completed the full genetic sequence of a special bacterium called Pseudomonas sp. PP3 that can break down harmful chlorinated chemicals used in herbicides and pesticides. The bacterium carries unusual mobile genetic elements that contain genes for dehalogenase enzymes, which enable it to remove chlorine atoms from these pollutants. This discovery helps us understand how bacteria can be used to clean up contaminated soil and water. The research confirms that this organism is closely related to another known Pseudomonas species and provides valuable information for developing better bioremediation strategies.