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May 14, 2026BMC Plant BiologyOpen Access

Glycine betaine alleviates salt stress in tomato by enhancing the chlorophyll synthesis pathway, photosynthesis, and regulating m6A methyltransferase related genes

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Authors

YCYoulin ChangGansu Agricultural UniversityCWCheng WangGansu Agricultural UniversityJZJing ZhangGansu Agricultural University

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Implication

Randomized trial investigates glycine betaine's impact on tomato growth and salt tolerance, suggesting effective agricultural strategies.

Key Points

  • This study aims to determine how glycine betaine influences chlorophyll synthesis, photosynthesis, and m6A methyltransferase expression in salt-stressed tomato plants.
  • Tomato plants were treated with exogenous glycine betaine (5 mM) under salt stress conditions.
  • Chlorophyll content, stomatal opening, and expression of m6A methyltransferase were measured after treatment.
  • Photosynthetic capacity and accumulation of chlorophyll precursors were evaluated.
  • 5 mM glycine betaine treatment significantly alleviated growth inhibition due to salt stress.
  • Chlorophyll content was enhanced by increased levels of Proto IX, Mg-Proto IX, and protochlorophyllide.
  • Glycine betaine improved photosynthesis by enhancing stomatal opening and protecting Calvin cycle enzyme activity.

Cite This Study

Chang et al. (2026) studied this question.

synapsesocial.com/papers/6a056695a550a87e60a1ea0bhttps://doi.org/10.1186/s12870-026-08861-8
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