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Key words maize whole-plant protein accumulation spatial multi-omics amino acid transporter nitrogen partitioning domestication Introduction Improving protein accumulation in maize is a paramount objective for both crop improvement and agricultural sustainability. As one of the world’s major food, feed, and industrial crops, maize (Zea mays L.) contributes substantially to global calorie supply and forage biomass (Liu et al., 2020; Erenstein et al., 2022).
Abstract Efficient nitrogen assimilation is important for sustainable agriculture1, yet its subcellular organization remains unknown. Here we show that plastoglobules (PGs) in the chloroplasts of mesophyll cells function as a metabolic hub that orchestrates nitrogen utilization in maize. Nitrogen-responsive dynamics of PGs represent a conserved feature across plant species.
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