About this Research Topic
The opening and closure of stomata are facilitated by dynamic changes in ionic status of guard cells. Several abiotic/environmental and biotic signals, such as plant hormones and elicitors or microbe associated molecular patterns (MAMPs) modulate stomatal function. Among the hormonal signals, the perception and action of the plant hormones, abscisic acid (ABA), is well characterized. Stomatal guard cells, being an easy and versatile system to study the their cellular components, are considered as excellent models for studying the signal transduction mechanisms. The observations made with guard cells are quite relevant to other plant tissues as well. Many reviews on signaling components in guard cells have been highly focused on single signaling components and have appeared in different journals. The proposed Frontiers Topic on "Signal Transduction in Stomatal Guard Cells" would provide a compendium of reviews by experts, all in one place and would be an excellent source of information to those interested in guard cell function as well as signal transduction in plant cells.
The Reviews on the following topics are planned;
•Mesophyll - driven signals;
•Ion pumps/transporters in the plasma membrane as well as tonoplast; Biophysical properties of ion-channels;
•Molecular mechanisms of sensing CO2 or humidity and subsequent signaling components;
•Occurrence, structure and function of receptors of plant hormones/elicitors;
•High-throughput techniques to identity mutants impaired in their stomatal responses;
•Multiple signaling pathways induced during stomatal closure, for example ROS or Ca2+ dependent or independent components;
•Guard cell kinases, such as OSTs, CDPKs
•Memory systems disruption of guard cell signaling leading to loss of stomata either priming or response to stimuli, such as ABA or humidity or calcium;
•Long-term effects of environmental conditions, such as vapour pressure deficit (VPD).
•Redox - based mechanisms in guard cells;
•Mechanisms of stomatal response to red or blue lights;
•Novel compounds that affect guard cell function, such as agonists/antagonists of plant hormones and gasotransmitters;
•Proteomics and metabolomics of guard cells; Role of 14-3-3 proteins.
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.