Tag: Calcium Signaling

Calcium ions (Ca2+) are ubiquitous and essential signals, with a very steep concentration gradient from outside to inside the cell. Numerous studies from across the kingdoms have demonstrated that transient Ca2+ fluxes convey information of many types. Here, Grenzi et al. provide an Update on the tools…

Calcium-dependent protein kinases (CDPKs/CPKs) are an interesting class of proteins present in plants, algae and some protists that are thought to “sense” and “respond” to spikes in intracellular Ca2+ signaling events. While multiple mechanisms have been proposed to be involved in the regulation…

Calcium (Ca2+) signaling regulates a host of stress and developmental responses in plants. Apart from increases in cytosolic Ca2+ concentration ([Ca2+]Cyt.), organellar signals play a key role in shaping the cytosolic signaling events. In an attempt to understand the Ca2+ dynamics in the endoplasmic…

Plants are constantly susceptible to mechanical stress and they have evolved intracellular signaling mechanisms to adapt to mechanical stimulation. Whilst it is known that ion channels activate signaling pathways in response to mechanical stress, only few of these mechanosensitive channels have been…

Calcium ions (Ca2+) occupy a primary position in plant cell signaling processes by virtue of their role as the so-called second messengers. Ca2+ signaling underlies plant response to various abiotic, biotic and developmental cues. Whilst this Ca2+ signaling was thought to predominantly occur in the cytoplasm,…

A drop in ambient temperature adversely affects plant growth and development. While the primary molecular pathway in response to cold stress involves the expression of CBF transcription factors, Guillaume-Schöpfer and colleagues found cold stress-induced inhibition of ribosome translation machinery…

CLE40 induces localized root Ca2+ transients through CNGC9 Growth and differentiation of cells in the meristematic region are tightly regulated by different signaling pathways. In the root meristem, the small peptide CLE40 acts as a ligand that binds to cell surface receptors and regulates cellular…

Calcium-dependent protein kinases (CPKs) form an important class of sensor-responder proteins that bind Ca2+ to ‘sense’ intracellular Ca2+ levels, and ‘respond’ by phosphorylating target proteins. CPK28 has distinct roles in growth and defense. To analyze the importance of Ca2+ in fine-tuning…