Arabidopsis growth and defense are modulated by bacterial quorum sensing molecules.
N-acyl-homoserine lactones (AHLs) play an important role in the communication within the rhizosphere; they serve as a chemical base for interactions within and between different species of Gram-negative bacteria. Not only bacteria, also plants perceive and react to AHLs with diverse responses. Here we describe a negative correlation between the length of AHLs' lipid chains and the observed growth promotion in Arabidopsis thaliana. Moreover, we speculate on a positive correlation between the reinforcement of defense mechanisms and the length of the lipid moieties. Observation presented here may be of great importance for understanding of the complex interplay between plants and their environment, as well as for agronomic applications.
Institute of Phytopathology and Applied Zoology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Giessen, Germany.
Sebastian T
ST
Schenk
Elke
E
Stein
Karl-Heinz
KH
Kogel
Adam
A
Schikora
D054742:Acyl-Butyrolactones / Q000378:metabolism*; D017360:Arabidopsis / Q000254:growth & development / Q000382:microbiology / Q000502:physiology; D006090:Gram-Negative Bacteria / Q000378:metabolism*; D008055:Lipids / Q000737:chemistry; D010935:Plant Diseases / Q000382:microbiology*; D057865:Plant Immunity; D053038:Quorum Sensing
D054742:Acyl-Butyrolactones; D008055:Lipids