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Lysozyme-coated nanoparticles for active uptake and delivery of synthetic RNA and plasmid-encoded genes in plants.
Nat Plants
January 2025
Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia.
Nanoparticle-mediated delivery of nucleic acids and proteins into intact plants has the potential to modify metabolic pathways and confer desirable traits in crops. Here we show that layered double hydroxide (LDH) nanosheets coated with lysozyme are actively taken up into the root tip, root hairs and lateral root junctions by endocytosis, and translocate via an active membrane trafficking pathway in plants. Lysozyme coating enhanced nanosheet uptake by (1) loosening the plant cell wall and (2) stimulating the expression of endocytosis and other membrane trafficking genes.
View Article and Find Full Text PDFHighly expressed cell wall genes contribute to robustness of sepal size.
Plant Signal Behav
December 2025
Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, CNRS, INRAE, UCBL, Lyon, France.
Reproducibility in organ size and shape is a fascinating trait of living organisms. The mechanisms underlying such robustness remain, however, to be elucidated. Taking the sepal of Arabidopsis as a model, we investigated whether variability of gene expression plays a role in variation of organ size and shape.
View Article and Find Full Text PDFOsPAD1, encoding a non-specific lipid transfer protein, is required for rice pollen aperture formation.
Plant Mol Biol
December 2024
State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Zhongshan Biological Breeding laboratoryr, Nanjing Agricultural University, Nanjing, 210095, China.
Article Synopsis
- - Plant lipid transfer proteins (LTPs) are crucial for moving lipids between membranes, impacting pollen wall development, including the pollen aperture structure.
- - The study focuses on a rice mutant called pollen aperture defect 1 (Ospad1), which shows male sterility due to abnormal pollen grain development linked to a non-specific LTP that fails to properly bind lipids.
- - Researchers found that OsPAD1 interacts with a gene involved in pollen development, providing new insights into how LTPs function in forming pollen apertures, which could have broader implications for other cereal crops.
Transcriptome profiling of foxtail millet (Setaria italica) pollen and anther.
BMC Plant Biol
December 2024
College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China.
Pollen development and germination play a crucial role in the sexual reproduction of plants. This study analysis of transcriptional dynamics of foxtail millet pollen with other tissues and organs (ovule, glume, seedling and root) through RNA-sequencing revealed that a total of 940 genes were up-regulated in foxtail millet pollen. Based on this, we analyzed the genes involved in pollen tube growth of receptor kinases and small peptides, calcium signaling, small G proteins, vesicle transport, cytoskeleton, cell wall correlation, and transcription factors that are up-regulated in pollen.
View Article and Find Full Text PDFSHORT AND CROOKED AWN, Encoding an Epigenetic Regulator EMF1, Promotes Barley Awn Development.
Plant Cell Physiol
December 2024
Institute of Plant Science and Resources, Okayama University, Kurashiki, 710-0046, Japan.
The awn is a bristle-like extension from the lemma of grass spikelets. In barley, the predominant cultivars possess long awns that contribute to grain yield and quality through photosynthesis. Barley is a useful cereal crop to investigate the mechanism of awn development as various awn morphological mutants are available.
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