Physiological, ionomic, transcriptomic and metabolomic analyses reveal molecular mechanisms of root adaption to salt stress in water spinach.

ABSTRACT: Water spinach (Ipomoea aquatica Forsk.) is an important leaf vegetable affected by salt stress, however, little is known about its salt adaption mechanism. Here, we integrated physiomics, ionomics, transcriptomics, and metabolomics to analyze the root adaptation response of two water spinach varieties, BG (salt-tolerant) and MF (salt-sensitive), at 150 mM NaCl. The results showed that compared with MF, BG significantly reduced the content of malondialdehyde (MDA) and H₂O₂, and increased catalase (CAT) activity and proline content. Ionome analysis demonstrated that BG significantly reduced Na⁺ accumulation and increased K⁺ level to reduce the toxicity of Na⁺, compared to MF. Weighted gene co-expression network analysis (WGCNA) revealed

SUBMITTER: Li Z 

PROVIDER: S-EPMC11895166 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature