{Reference Type}: Journal Article {Title}: Plant Growth Promotion and Induction of Systemic Tolerance to Drought and Salt Stress of Plants by Quorum Sensing Auto-Inducers of the N-acyl-homoserine Lactone Type: Recent Developments. {Author}: Hartmann A;Klink S;Rothballer M; {Journal}: Front Plant Sci {Volume}: 12 {Issue}: 0 {Year}: 2021 {Factor}: 6.627 {DOI}: 10.3389/fpls.2021.683546 {Abstract}: