AUTHOR=Tomé Filipa , Nägele Thomas , Adamo Mattia , Garg Abhroop , Marco-llorca Carles , Nukarinen Ella , Pedrotti Lorenzo , Peviani Alessia , Simeunovic Andrea , Tatkiewicz Anna , Tomar Monika , Gamm Magdalena TITLE=The low energy signaling network JOURNAL=Frontiers in Plant Science VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2014.00353 DOI=10.3389/fpls.2014.00353 ISSN=1664-462X ABSTRACT=

Stress impacts negatively on plant growth and crop productivity, caicultural production worldwide. Throughout their life, plants are often confronted with multiple types of stress that affect overall cellular energy status and activate energy-saving responses. The resulting low energy syndrome (LES) includes transcriptional, translational, and metabolic reprogramming and is essential for stress adaptation. The conserved kinases sucrose-non-fermenting-1-related protein kinase-1 (SnRK1) and target of rapamycin (TOR) play central roles in the regulation of LES in response to stress conditions, affecting cellular processes and leading to growth arrest and metabolic reprogramming. We review the current understanding of how TOR and SnRK1 are involved in regulating the response of plants to low energy conditions. The central role in the regulation of cellular processes, the reprogramming of metabolism, and the phenotypic consequences of these two kinases will be discussed in light of current knowledge and potential future developments.