Research Progress of Salt Stress on Plant

doi:10.11924/j.issn.1000-6850.casb2025-0403

Abstract

Abstract:

The global salinization is becoming more and more serious, leading to intensified degradation of cultivated land and threatening plant growth seriously. In the current study, the composition and distribution characteristics of salt ions in saline-alkali soil were summarized. The negative effects of salt stress on plant growth, photosynthesis, rhizosphere secretions and microbial communities were clarified. The current chemical, physical and microbial regulation methods for alleviating plant salt stress were summarized. On this basis, the key problems such as the inconsistent evaluation criteria of salinity and the complexity of soil ion composition in existing studies were revealed, and targeted suggestions were proposed as follows: (1) establishing classification criteria by region; (2) developping a temporal and spatial dynamic model of soil salinity change. Furthermore, synthetic flora (SynComs) is expected to become an important direction for research and application of saline-alkali land improvement with its advantages of functional synergy, ecological stability, improvement of comprehensive benefits and technical scalability. Overall, the current study provides theoretical basis and technical support for the improvement of saline-alkali soil and the enhancement of plant salt tolerance.

Key words: salt stress, salt ion, plant, SynComs, microorganism, research progress

CHANG Zhangyue, YAN Hong, LU Yuxin, QIN Tao, BAI Yani. Research Progress of Salt Stress on Plant[J]. Chinese Agricultural Science Bulletin, 2025, 41(22): 82-88.

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