METABOLIC AND TRANSCRIPTOMIC ANALYSES IDENTIFY COORDINATED RESOURCE REALLOCATION IN RESPONSE TO PHOSPHATE SUPPLY IN HEMP
Authors: Wee Y, B., Berkowitz, O., Ng, S., Pegg, A., Whelan, J., Jost, R.
Date: 2025-12-23 · Version: 2
DOI: 10.1101/2025.09.18.677093 Category: Plant Biology
Model Organism: Cannabis sativa
▶ AI Summary
The study examined how dual‑purpose hemp (Cannabis sativa) adjusts to different phosphate levels, showing that flower biomass is maintained unless phosphate is completely removed. Integrated physiological measurements and transcriptomic profiling revealed that phosphate is reallocated to flowers via glycolytic bypasses and organic phosphate release, while key regulatory genes followed expected patterns but did not suppress uptake at high phosphate, leading to nitrate depletion that limits growth.
Cannabis sativa phosphate nutrition transcriptomics source‑sink regulation nutrient signaling