Physiological responses and proteomic analysis of different barley varieties under alkaline stress

ABSTRACT: Soil salinization threatens agricultural development, and understanding the alkali tolerance mechanism of barley is crucial for breeding. Using the alkali-tolerant barley variety Jia-HY460-6R and the alkali-sensitive variety Noire Maroc as materials, morphological and physiological indicators were determined and proteomic analysis was conducted after treatment with 100 mmol·L⁻¹ Na₂CO₃:NaHCO₃. The results showed that Jia-HY460-6R was superior to Noire Maroc in growth indicators, antioxidant capacity, ion balance, and osmotic regulation. A total of 1359 differentially abundant proteins were identified, and 27 key proteins were screened, involving multiple metabolic pathways such as the MAPK signaling pathway. This study provides a basis for understanding the molecular mechanism of barley alkali tolerance and breeding.

ORGANISM(S): Hordeum Vulgare

SUBMITTER: Shoujun Xu  

PROVIDER: PXD070668 | iProX | Mon Nov 10 00:00:00 GMT 2025

REPOSITORIES: iProX