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Plant stress responses describe the suite of molecular and cellular processes that are triggered by the detection by the plant of some form of stress. Stresses can be abiotic, such as drought or excess light, or biotic, such as herbivores or pathogens.
Asian soybean rust (ASR) is a devastating disease of soybean. Here, the author report the identification of an atypical pair of nucleotide-binding leucine-rich repeat (NLR) encoding genes and how they function together to confer broad-spectrum resistance to ASR.
Plants utilize transcriptional dynamics to adapt to cold stress. Here, Zhang et al. describe a network of chromatin interactions between gene promoters across the Arabidopsis genome that could facilitate co-regulation of gene expression during cold stress.
Huang et al. show how plant Sw-5b NLR mimics the ABA receptor to activate ABA-dependent antiviral immunity via the PP2C-SnRK2 complex. They reveal that Sw-5b NLR induces ABA accumulation, upregulates ABA response genes, and triggers defense against viral infections by releasing SnRK2 from PP2C inhibition.
Research on apoplastic diffusion barriers may help to better understand sensitivity to drought and salinity, two of the most pressing problems in agriculture.
In vivo mercury demethylation by rice plants, involving neither light nor microorganisms, has major implications for human health and possibly even global mercury cycling.
We reveal that a family of plant stress-induced signalling peptides, SERINE-RICH ENDOGENOUS PEPTIDES (SCOOPs), is much larger than originally thought, and identify key proteases required for their biogenesis. We find that impairing SCOOP biogenesis phenocopies a mutant of the SCOOP receptor MALE DISCOVERER 1-INTERACTING RECEPTOR-LIKE KINASE 2 (MIK2).
We report the high-resolution cryo-electron microscopy structures of SOS1, a major determinant of salt tolerance in plants. From our structural and functional analyses, we propose a model for how the unique large cytoplasmic domain regulates the Na+/H+ exchange activity of SOS1, enhancing our understanding of the mechanisms underpinning the regulation of SOS1 activity.
The plasma membrane Na+/H+ antiporter SOS1 has a pivotal role in determining salinity tolerance in plants. This study investigates the structure and function of SOS1 from Oryza sativa (rice), elucidating its architecture and activation mechanism, with notable implications for improving crop salt tolerance.
With a better understanding of the soil microbiome and its interactions with plants, designing a synthetic bacterial community may complement current agricultural practices to enhance plant performance on marginal soils.
