Wavelength induced cultivar specific enrichment of essential amino acids and phenolics in Amaranthus tricolor

This study demonstrates that exposing two cultivars of *Amaranthus tricolor* to specific monochromatic light wavelengths induces cultivar-specific metabolic reprogramming, significantly enriching nutritionally essential amino acids and phenolic compounds to enhance the crop's nutritional value in controlled agriculture systems.

Pawar, S. S., Joshi, N., Pant, Y. + 2 more2026-03-31📄 plant biology

Single-cell spatiotemporal transcriptomics reveals the developmental dynamics and regulatory network of poplar seed fibers

By integrating single-nucleus and spatial transcriptomics to construct a high-resolution atlas of poplar capsules, this study elucidates the placental origin and three-stage developmental trajectory of seed fibers while identifying key regulatory transcription factors to guide the breeding of low-fluff poplar cultivars.

Han, K., Wang, H., Yang, X. + 4 more2026-03-31📄 plant biology

Expression of AtCAN1 and AtCAN2 genes of the plant SNc nuclease family correlates with programmed cell death and endoreduplication, indicating their role in the recycling of nucleic acid components.

This study demonstrates that the Arabidopsis SNc family nucleases AtCAN1 and AtCAN2 are broadly expressed in tissues undergoing programmed cell death and endoreduplication, suggesting they play a crucial, complementary role to nuclear S1/P1 nucleases in the degradation and recycling of nucleic acids during these distinct developmental processes.

Krela, R., Poreba, E., Lesniewicz, K.2026-03-30📄 plant biology

The Role of Phosphoenolpyruvate Carboxylase-Protein Kinase in C4 Photosynthesis: Insights from Zea mays Mutant Analysis

Although the phosphorylation of phosphoenolpyruvate carboxylase (PEPC) by PEPC-protein kinase in *Zea mays* alters the enzyme's sensitivity to malate inhibition in vitro, this post-translational modification is not essential for photosynthetic performance or field growth, indicating the presence of additional regulatory mechanisms in planta.

Enyew, M., Studer, A. J., Woodford, R. + 3 more2026-03-27📄 plant biology

Transcription elongation factor SPT6L recruits ARGONAUTE to guide mRNA cytosine methylation preventing premature termination in plants

This study reveals that in plants, the transcription elongation factor SPT6L recruits AGO4 via its AGO-hook domain to guide sRNA-directed mRNA cytosine methylation, a process essential for preventing RNA polymerase II stalling and ensuring proper transcription termination.

Kaspar, T., Cermak, V., Adamusova, K. + 1 more2026-03-27✓ Author reviewed 📄 plant biology

Integrative Omics and Network Biology Reveal Transcriptional Changes of Amino Acid Transport in Arabidopsis Susceptibility to Pseudomonas syringae

By integrating multi-omics data and network biology approaches, this study identifies the transcription factor ANAC046 as a key regulator of amino acid transport that promotes Arabidopsis susceptibility to *Pseudomonas syringae* during effector-triggered susceptibility, while also providing a new open-access platform (MIData) to support future plant-pathogen research.

Mishra, B., Kumar, N., Sun, Y. + 5 more2026-03-27📄 plant biology

Division of labor between seed plant RAB GDI paralogs: insights from genetic analysis in Arabidopsis thaliana

This study utilizes genetic, microscopic, and phylogenetic analyses in *Arabidopsis thaliana* to demonstrate that while RAB GDI1 and GDI2 are essential for vegetative growth and GDI2 and GDI3 are vital for reproduction, the evolutionary diversification of the RAB GDI family in seed plants reflects the specialization of angiosperm reproduction and gametophyte development.

Soukupova, H., Cvrckov, F., Zarsky, V. + 1 more2026-03-27📄 plant biology