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The rice protein Ptr defends against blast disease by detecting the effector AVR-Pita in an allele-specific manner. The immune receptor Pi-ta proved to have no function in this process, contrary to what was previously reported.
In Marchantia polymorpha, sperm cells are released from the antheridium into the surroundings. The process is facilitated by MpMLO1, which initiates Ca2+-dependent programmed cell death of tip jacket cells of the mature antheridium, enabling water to enter and ultimately resulting in the bursting of the antheridium and the discharge of sperm.
The manual-labour-intensive hybrid seed production process is a limiting step for fully mechanized hybrid rice breeding. This work demonstrates that the use of ideal small-grain alleles of GSE3 enables fully mechanized hybrid rice breeding.
In most flowering plants, early divisions of endosperm nuclei are not succeeded by cellularization. This study uncovered a family of clustered auxin response factors as dosage-sensitive, maternally expressed regulators of endosperm cellularization.
Removing the large inverted repeat region from the chloroplast genome revealed a gene dosage benefit for the ribosomal RNA operon. The reduced genome size resulted in increased genome copy numbers and offers potential for synthetic biology.
Tang et al. utilized proximity labelling to assemble the Arabidopsis nuclear pore-associated proteome and revealed the nuclear pore as an integrated platform coupling multiple steps in gene expression regulation, beyond its conventional transport role.
Quan et al. show that warming-induced changes in plant community height in a cold, high-elevation region enhance ecosystem carbon sequestration, emphasizing the importance of plant traits in shaping the carbon cycle under climate change.
Wang and colleagues report a two-dimensional root carbon trait space coupled with the root economics space, offering molecular insights into the great diversity of root form and function.
This study identifies PPKs as authentic protein kinases phosphorylating the far-red light photoreceptor phytochrome A and demonstrates that liquid–liquid phase separation of TZP promotes PPK-mediated phosphorylation of phytochrome A in far-red light.
In global drylands, soils tend to be more fertile beneath tree, shrub and grass islands. Soil fertility was greater beneath taller and wider plants but was unaffected by either grazing pressure or the type of herbivore.
The ‘non-canonical’ type-B BZR/BES transcription factor, MpBZR3, has been shown to be a regulator of the development of female and male reproductive organs in the model bryophyte Marchantia polymorpha.
The cryo-EM structure shows us how thousands of protein components self-assemble into Prochlorococcus α-carboxysome. The scaffolding protein CsoS2 crosslinks the icosahedral-like shell and internal RuBisCOs, and determines the size of α-carboxysome.
Wang et al. report the cryo-electron microscopy structures of rice K+ transporters HKT2;1 and HKT2;2/1. These structures reveal critical insights into their ion selectivity and transport mechanisms that will aid in the development of strategies to increase yields.
He et al. found that locally adapted maize varieties exert patterns of genetic control on their root and rhizosphere microbiomes that follow variation in their home environments, consistent with a role in tolerance to prevailing stress.
Photosystem I (PSI) is one of two large pigment–protein complexes responsible for converting solar energy into chemical energy. This study reveals the previously unknown major PSI assembly pathway in land plants.
The authors show that RALF22 has a dual role in cell wall assembly in root hairs: as a structural component organizing cell wall architecture and as a feedback signalling molecule that regulates this process depending on its interaction partners.
Timber harvest claims can be scrutinized based on a combination of wood chemical composition and species distribution. The location of timber harvest can be determined within 180 to 230 km of true location across Eastern Europe.
How do multicellular organisms integrate cell- and tissue-scale mechanical information to coordinate growth? Elliott et al. show that plant cells establish a self-regulating cell-wall-sensing module at their one-dimensional cell edges to control three-dimensional growth.
In response to abscisic acid, the m6A reader ECT8 undergoes phase separation to form cytoplasmic condensates and sequesters m6A-modified abscisic acid receptor PYL7 mRNA in stress granules, which suppresses PYL7 translation for feedback regulation of abscisic acid perception.