Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Photosynthesis in tropical forests shows an apparent sensitivity to temperature. This Letter teases apart the effects of temperature and correlated atmospheric water demand on ecosystem productivity.
Cell polarity that requires asymmetrical distribution of cellular components is important for plant growth and development. Here the authors identify a group of ARMADILLO domain proteins that collectively act in the polarized cell expansion of tip-growing cells by recruiting Rho of plant 1 (ROP1) enhancer GTPase-activating proteins and therefore ROP signalling to distinct plasma membrane sites.
The structure of a complex of native plant photosystem I, its electron donor plastocyanin and acceptor ferredoxin, has been solved using a new cryo-EM technique, revealing the contact sites and modes of interaction between the interacting electron carriers.
A transgenic Venus flytrap expressing a fluorescent calcium sensor allows real-time live quantification of calcium waves triggered by sensory hair movement. The study suggests that calcium levels represent the molecular basis for the memory effect that requires two stimulations within 30 s.
A new multicolour tool named PlaCCI allows for visualization and quantification of discrete cell cycle phases thanks to the sequential expression of three specific fluorescent markers.
The primary miR858a transcript encodes a micro-peptide (miPEP) that regulates its own expression. This mechanism regulates the flavonoid biosynthesis pathway. It is the second miPEP functionally characterized in plants.
The study shows that the cold-induced Polycomb-repressed chromatin state at FLOWERING LOCUS C is meiotically stable in female but not male gametogenesis. This epigenetic cold memory is maternally inherited to the zytote and early embryos.
In plants, Rubisco is composed of 16 subunits and requires multiple chaperones to assemble. Features of individual tobacco Rubisco subunits that affect kinetic properties are investigated by coexpression with chaperones in Escherichia coli.
Ammonium and nitrate are the two major forms of inorganic nitrogen in soils. Ammonium shapes root architecture of plants by triggering lateral root branching. Here the researchers investigated the mechanism involving pH-dependent import of protonated auxin into the cortical and epidermal cells overlaying lateral root primordia.
Fluorescent in situ hybridization is used to identify the subcellular location of mRNAs encoding core photosystem subunits in cyanobacteria. They are clustered at thylakoid surfaces, near the central cytoplasm and nucleoid, by mRNA-binding proteins.
This analytical optimization model maximizes the long-term rate of leaf carbon gain, given carbon costs in building and maintaining stomata, leaf hydraulics and osmotic pressure. It unites adaption of leaf photosynthesis and water relations.
Analyses of the topologically associated domains (TADs) in Marchantia polymorpha revealed a type of TCP1-rich TAD that regulates the activities of TCP1 transcription factors in modulating target gene expression.
Metagenomic analysis has uncovered a previously uncharacterized clade of Rubisco related to form I Rubisco found in plants and cyanobacteria. Structural and kinetic data show how this proto-form I Rubisco assembles and functions without small subunits.
One important direction to reduce the application of nitrogen fertilizer is to improve nitrogen use efficiency (NUE) of crops. Now an interesting strategy that engineers the transporter responsible for source-to-sink nitrate remobilization is employed to generate transgenic Arabidopsis, tobacco and rice lines with enhanced NUE and plant yield.
This study developed xiaomi, a mini foxtail millet mutant, as a C4 model plant that has a short life cycle and small stature. To further enhance its model plant function, xiaomi’s genome was sequenced and an efficient transformation system was established.
The genome-wide dynamics of two histone modifications in Arabidopsis halleri show that H3K27me3 exhibits seasonal plasticity and diel stability, whereas H3K4me3 changes seasonally and diurnally. H3K27me3 oscillates seasonally with a delayed phase relative to H3K4me3.
TERMINAL FLOWER1 (TFL1) is key factor that controls flowering time and inflorescence meristem identity. Here, the researchers assign a new role to TFL1 of seed size determination by regulating the timing of endosperm cellularization.
Plants with loss of function mutations in the MEKK1–MKK1/2–MPK4 MAP kinase pathway show strong autoimmunity phenotypes and dwarfism. Through a suppressor genetic screen, the malectin-like receptor kinase LET1 is identified as a new regulator of immune signalling.
This study reports that DNA strand breaks trigger the reprogramming of differentiated leaf cells into stem cells without cell death in Physcomitrella, which requires the DNA damage sensor ATR kinase and the STEM-CELL INDUCING FACTORs (STEMINs).
Two high-quality nanopore genome assemblies of Brassica nigra are reported, one of which has particularly high contiguity with a contig N50 of 17.1 Mb, allowing localization of active centromeres and reconstruction of the ancestral Brassica genome.