Drought, Salinity, and Low Nitrogen Differentially Affect the Growth and Nitrogen Metabolism of Sophora japonica (L.) in a Semi-Hydroponic Phenotyping Platform.

ABSTRACT: Abiotic stresses, such as salinity, drought, and nutrient deficiency adversely affect nitrogen (N) uptake and assimilation in plants. However, the regulation of N metabolism and N pathway genes in Sophora japonica under abiotic stresses is unclear. Sophora japonica seedlings were subjected to drought (5% polyethylene glycol 6,000), salinity (75mM NaCl), or low N (0.01mM NH₄NO₃) for 3weeks in a semi-hydroponic phenotyping platform. Salinity and low N negatively affected plant growth, while drought promoted root growth and inhibited aboveground growth. The NH₄ ⁺/NO₃ ^- ratio increased under all three treatments with the exception of a reduction in leaves under salinity. Drought significantly increased leaf NO

SUBMITTER: Tian J 

PROVIDER: S-EPMC8522681 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature