Nitrogen deficiency identifies carbon metabolism pathways and root adaptation in maize.

ABSTRACT: Sugars are essential for plant development, with nitrogen (N) availability playing a critical role in their distribution across plant organs, ultimately shaping growth patterns. However, the regulatory mechanisms modulating carbon (C) assimilate allocation and utilization under different N forms are not well understood. This study examined C fixation, utilization, and spatial re-distribution in the roots of hydroponically grown maize seedlings subjected to four N treatments: 1 mM NO₃ ^- (low N; LN), 2 mM NO₃ ^- (medium N; MN), 10 mM NO₃ ^- (high N; HN), and 1 mM NH₄ ⁺ (low ammonium; LA). LN treatment significantly increased soluble sugar, sucrose, and starch contents while promoting greater root biomass at

SUBMITTER: Amoah JN 

PROVIDER: S-EPMC12394107 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature