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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.
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.
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.
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.
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.
Cryptochromes (CRYs) perform various functions in both plants and animals, including photoperception and circadian regulation. Now it is shown in Arabidopsis that blue light induces liquid–liquid phase separation of CRY2, co-condensing the interacting m6A writer and altering epitranscriptome with respect to the circadian clock.
This study shows that miRNAs produced by plants act as signalling molecules that affect gene expression in nearby plants. This RNAi induced by exogenous miRNAs enables communication between plants and requires the production of secondary siRNAs.
Despite, and perhaps because of, extensive data regarding agricultural variables and plant traits, finding connections to crop yields can be difficult to compile. Machine learning models detailed here can provide accurate predictions to tease out behaviours.
In plant miRNA biogenesis, DCL1 cleaves pri-miRNA and pre-miRNA sequentially. This study reports the cryo-EM structures of Arabidopsis DCL1 complexed with the two substrates and uncovers the domains that are key for substrate recognition and transfer.
Sugar transport proteins (STPs) that are responsible for glucose uptake in plant cells play fundamental roles in plant growth, development and stress responses. High-resolution structures of Arabidopsis STP10 with glucose and protons bound are now resolved at two conformations, outward-occluded and inward-open, providing a general model for proton/glucose symport in STPs.
The temperature sensitivity of a chloroplast signal recognition particle complex provides thermoprotection for tetrapyrrole biosynthesis proteins, protecting several proteins from heat-induced aggregation during the assembly of chlorophyll-binding proteins.
A high-quality genome of Aristolochia fimbriata illuminates its unique history of whole-genome duplication similar to Amborella, the genomic basis of its complex flower morphology and chemical biosynthesis, and the phylogenetic placement of magnoliids.