This project continues to make progress. We have grafted the new copies of the LuxI plants and they are growing well. We plan to begin the chemical analysis (to determine if the plants are producing the targeted homoserine lactones) in June 2017. Following confirmation of HSL production, the plants will be challenged with ACP. However, this work will not be accomplished until after the end date of the project; therefore, in April 2017 we submitted a request for a no-cost extension. We look forward to the results of this work and know it will provided valuable information to the citrus research community.