Sphingobium yanoikuyae 41R9 Enhances Nitrogen Uptake by Modulating Transporter Genes and Root Development in Rapeseed.
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Sphingobium yanoikuyae 41R9 significantly boosts nitrogen uptake and root development in rapeseed, increasing nitrogen use efficiency by up to 50%.
- Why it matters: Improving nitrogen use efficiency in crops is crucial for sustainable agriculture and reducing fertilizer dependence, yet the regulatory mechanisms of PGPRs like Sphingobium species remain unclear.
- What they did: Researchers isolated strain 41R9 from N-deficient rapeseed rhizosphere, performed genomic analysis, 15N tracer experiments, and transcriptome profiling to investigate its effects on nitrogen uptake and gene regulation.
- The result: Strain 41R9 enhanced N transporter gene expression, maintained jasmonic acid balance, and was attracted to root exudates, revealing mechanisms that could be exploited to improve crop nutrient efficiency.