AUTHOR=Hartmann Anton , Klink Sophia , Rothballer Michael 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 JOURNAL=Frontiers in Plant Science VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.683546 DOI=10.3389/fpls.2021.683546 ISSN=1664-462X