Physiological, biochemical, and transcriptomic analysis of castor (Ricinus communis L.) under foliar selenium treatment.

ABSTRACT:

Background

Selenium (Se) plays a dual role in plants as a beneficial micronutrient at low concentrations and a potential toxin at high levels. However, the mechanisms underlying its regulatory effects in castor remain unclear. Here, we investigated the effects of foliar-applied sodium selenite (Na₂SeO₃) on the physiological and molecular responses of castor (Ricinus communis L.) using transcriptomic analysis.

Results

Within the concentrations range of 20-40 mg/L, Se significantly enhanced SOD, CAT, and APX activities and upregulated the related genes. These treatments activated multiple hormone signaling pathways-including jasmone acid, salicylic acid, auxin, ethylene, and abscisic acid-and stimulated phenylpropanoid biosynthesis by upregulating key gen

SUBMITTER: Deng G 

PROVIDER: S-EPMC12632072 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature