Cross-talk of Compatible Solutes with Other Signalling Pathways in Plants

Plants when exposed to varying level of abiotic stress conditions undergo a large number of changes at the physiological and molecular level that considerably affects their growth and development. Abiotic stresses affect cellular homeostasis and enhance generation of reactive oxygen species which ultimately leads to earlier senescence in plants. In response to stress conditions, plants accumulate enhanced level of osmolytes in coordination with different stress signalling pathways. This chapter discusses interaction of osmolytes and different signalling molecules and their role for survival of plants under stress conditions. Studies related to biosynthesis pathways of osmolytes have helped to identify novel candidate genes that regulate the stress response in plants.