Nitrogen deficiency impacts growth and modulates carbon metabolism in maize.

ABSTRACT:

Main conclusion

Nitrogen (N) deficiency in maize regulates carbon (C) metabolism by enhancing sugar and starch metabolism and related gene expression in both shoots and roots, while increasing root competition for assimilates causing carbohydrate accumulation in leaves and sheaths due reduced translocation to sink tissues. Soluble sugars are vital for plant development, with nitrogen (N) availability playing a key role in their distribution across plant organs, ultimately shaping growth patterns. However, the regulatory mechanisms governing carbon (C) assimilate allocation and utilization under different N forms remain unclear. This study examined C fixation, utilization, and spatial distribution in hydroponically grown maize seedlings subjected to four N treatments: 1 mM NO_3<

SUBMITTER: Amoah JN 

PROVIDER: S-EPMC12405021 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature