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TT2 is identified as a negative regulator of thermotolerance. It triggers Ca2+ signalling upon heat stress, which is then decoded by SCT1–CaM interaction. SCT1 reduces the transcription of its target OsWR2, thereby causing reduction in wax biosynthesis.
A study finds that N-terminal RT–Cas9 nickase fusion, versus the commonly applied C-terminal fusion, and multiple-nucleotide substitutions in prime editing guide RNAs can synergistically and greatly enhance the efficiency of prime editor 3 in rice and maize.
During drought stress, a plant’s root:shoot ratio is increased. The sucrose transporters SWEET11 and 12 are rapidly phosphorylated upon drought and abscisic acid treatments, enhancing sugar loading of phloem and supporting enhanced root growth.
This study establishes the effect of ENSO cycles modulated by SAM in South America on a native conifer over multiple centuries and the reproductive cycle of individual plants on a regional scale in line with climate events.
Glutaredoxins are small redox proteins that use glutathione as a cofactor. In maize, a glutaredoxin named MSCA1 controls the activity of transcription factor FASCIATED EAR4 through dimerization, regulating inflorescence meristem development.
This study revealed a novel regulator, ZmPLD3, for maternal haploid induction in maize. Loss-of-function mutations of ZmPLD3 showed an induction rate similar to that of mtl/zmpla1/nld and induced haploids in a synergistic manner with the mtl mutations.
Analyses of plant genomes sequenced in the past 20 years, the species taxonomic distribution and national participation reveal that genome quality has increased but substantial taxonomic gaps exist, and that the field has been dominated by the Global North.
Single-cell profiling of callus from hypocotyl explants shows the heterogeneity of this tissue and identifies gene networks needed for plant regeneration, in particular the essential roles of WOX5 and WOX7 in this biological process.
The Clp protease (ClpP) in plastids is essential for chloroplast development and plant cell survival. The composition and architecture of the chloroplast ClpP complex in Chlamydomonas reinhardtii is now revealed by cryo-electron microscopy.
This study reports a donor DNA-free approach for gene knock-up based on CRISPR. It induced designed promoter swap or replacement for target genes by triggering genomic inversion or duplication so as to elevate gene expression and generate new traits.
What is the effect of hormones on cell shape and growth? In this study, morphometric, genetic and computer modelling analyses are combined to show how brassinosteroids control overall root meristem geometry and development.
Cytokinin influences various aspects of plant growth and development, including vascular development. The TMO5/LHW complex regulates a precise balance of cytokinin in xylem and procambium, therefore organizing root vascular patterning in Arabidopsis.
Strigolactones (SLs) play a vital role in controlling plant shoot branching. A carboxylesterase and its orthologues were identified to be efficient hydrolases of SLs, which discloses a catabolic mechanism behind homoeostasis of SLs in seed plants.
This study finds that siRNA-guided ARGONAUTE first recruits polymerase V to new target sites without pre-existing DNA methylation and triggers the cycle of RdDM at the target sites, thereby establishing epigenetic silencing.
By quantifying over 100 Cannabis samples for terpene and cannabinoid content and genotyping them for over 100,000 single nucleotide polymorphisms, this study finds that Cannabis labelling is associated with genetic variants in terpene synthase genes.
Genome-wide profiles of RNA–chromatin interactions in Arabidopsis reveal the types of RNAs that mediate cis, intra-chromosomal and inter-chromosomal interactions and suggest the formation of co-regulatory gene expression networks in response to stresses.
Plants have developed defences against herbivores, but with multiple threats at different times, those defences may be compromised. This experiment finds that plants adapt over time to anticipate prevalent herbivores and common patterns of attack.