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February 11, 2026The Plant Journal

Nitric oxide enhances SlSPL10 ‐mediated transcriptional repression of carotenoid synthesis genes to delay tomato fruit carotenoid accumulation

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Authors

YYYandong YaoShanxi Agricultural UniversityJZJitao ZhangGansu Agricultural UniversityYYYan YangJinzhong University

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Implication

Transcriptomic analysis reveals nitric oxide's role in delaying carotenoid accumulation in tomatoes by enhancing SlSPL10 activity.

Key Points

  • This research aimed to understand how nitric oxide affects carotenoid synthesis regulation in tomatoes, specifically through SlSPL10.
  • Utilized S-nitrosoglutathione (GSNO) as a nitric oxide donor in tomato fruits.
  • Conducted transcriptome analysis to identify key genes involved in carotenoid synthesis.
  • Compared carotenoid accumulation in wild-type and slspl10 mutant fruit.
  • GSNO significantly reduced carotenoid accumulation in wild-type tomato fruit.
  • SlSPL10 was identified as a crucial regulator, negatively impacting carotenoid synthesis.
  • In slspl10 mutants, GSNO did not suppress carotenoid synthesis, confirming SlSPL10's role.

Cite This Study

Yao et al. (2026) studied this question.

synapsesocial.com/papers/698c1bdc267fb587c655de0chttps://doi.org/10.1111/tpj.70717
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