Tag: Signals and Signaling

In plant immunity, signal transduction is tightly modulated through mechanisms including controlled stoichiometry of key regulators. Dressano et al. identified the novel IMMUNOREGULATORY RNA-BINDING PROTEIN (IRR) as a negative regulator of immunity in both maize and Arabidopsis through a screen of Plant…

Maybe it’s because I’ve spent too much time in lockdown, but sometimes I find studies on cell signaling a bit impenetrable. Fortunately, this excellent review by Galindo-Trigo et al. has arrived, which elegantly walks the reader through the crowded world of receptor-like kinases and “how cells…

Under low N condition, plants form more lateral roots to facilitate N-uptake efficiency, and legumes such as Medicago truncatula develop more nodules to fulfill plant nitrogen requirements. Since both lateral root formation and nodulation are energy-consuming processes, plants balance these developmental…

Research from the last three decades has discovered many genes and pathways involved in plant immunity and how they are connected. Here, Zhou and Zhang highlight new research regarding activation and signaling of cell surface pattern recognition receptors (PRRs) and intracellular nucleotide-binding,…

Alternative splicing is a process that can produce two or more transcript isoforms from a single gene and can increase protein diversity. FERONIA (FER) is a receptor-like kinase that serves as a receptor for the rapid alkalinization factor (RALF) peptides that regulate multiple cellular activities in…

Responses to a changing environment require an interplay between primary and secondary messengers. Hormones like abscisic acid (ABA), auxin etc. act as a primary messengers, whereas molecules like Ca2+, reactive oxygen species (ROS), other cations and anions act as a secondary messenger. In this paper,…

Small signaling peptides are cleaved from precursor proteins by the action of proteases and are also subject to other post-translational modifications. Subtilases (SBT) are mostly extracellular proteases, but SBT6.1 is membrane-localized at the Golgi and plasma membranes. Furthermore, it has been shown…

In nature, plants face multiple environmental stresses simultaneously. Plant responses to combined stresses are often not merely the sum of responses to individual stresses; in the tissue that initially perceive stresses (local tissue), plants can integrate different stress signals to elicit unique responses.…