Tag: Signals and Signaling

Plant cells express an array of membrane-bound receptor proteins that recognize and respond to extracellular cues. However, their varied structure/specificity and methods of activation pose challenges in assessing their function. Focusing on Leucine-Rich Repeat Receptor Kinases (LRR-RKs), Hohmann et…

Stomatal development requires cell-to-cell communication and follows one cell spacing, with a minimum of one cell space between two stomata. Key to this communication are the ERECTA and ERECTA LIKE (ERL) Leucine-Rich Repeat domain-Receptor Like kinases (LRR-RLKs) and their ligands, the EPIDERMAL PATTERNING…

During symbiosis, the rhizobia bacteria rely on their lipo-chitooligosachharide signals (LCOs) to associate with plants. This signal is perceived by plant receptor like kinase, LysM-containing receptors which activate the common symbiosis signaling pathway (CSSM). Fungal symbiosis with plants has also…

Protein degradation is mediated by several systems: the ubiquitin-proteasome system, multi-vesicle body-mediated vacuolar sorting (MVB), and the autophagy-vacuole pathway. However, the communication between these different protein degradation systems are less characterized. Here, Xia et al. report a…

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,…