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<p>Tomato fruit plays a significant part in the human diet. And the ripening of tomato fruits is a complex dynamic physiological and biochemical process. Our previous research found that the application of the fungicide penthiopyrad (PEN) had an inhibitory effect on the ripening of tomato fruits. This study aims to address the issue of PEN inhibiting tomato fruit ripening by applying nano-selenium (Se-NP) for remediation. We determined the physiological and biochemical indicators related to ripening, combined with the expression levels of key regulatory genes involved in the synthesis of ethylene, lycopene, and cell wall lysis processes. According to our findings, Se-NP treatment alone could reduce fruit firmness, promote the accumulation of lycopene and ethylene (ETH), thereby promoting tomato ripening. The combined application of Se-NP and PEN repaired the inhibitory effect of PEN on tomato ripening by up-regulating the levels of genes related to lycopene synthesis, key genes for ETH synthesis, and genes involved in cell wall lysis. The research results provide new ideas for the molecular mechanism by which Se-NP regulates the ripening process of tomato fruits. It can also serve as a theoretical foundation for future research on the inhibitory effect of repairing pesticides on fruit ripening.</p>

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Nano-Selenium Repaired the Inhibition of Tomato Fruit Ripening Induced by Penthiopyrad by Regulating Ethylene Synthesis, Cell Wall Metabolism and Pigment Accumulation

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • Rui Liu,
  • Bingyan Li,
  • Yuping Liu,
  • Zhiqiang Zhou,
  • Jinling Diao,
  • Yuting Zhang

摘要

Tomato fruit plays a significant part in the human diet. And the ripening of tomato fruits is a complex dynamic physiological and biochemical process. Our previous research found that the application of the fungicide penthiopyrad (PEN) had an inhibitory effect on the ripening of tomato fruits. This study aims to address the issue of PEN inhibiting tomato fruit ripening by applying nano-selenium (Se-NP) for remediation. We determined the physiological and biochemical indicators related to ripening, combined with the expression levels of key regulatory genes involved in the synthesis of ethylene, lycopene, and cell wall lysis processes. According to our findings, Se-NP treatment alone could reduce fruit firmness, promote the accumulation of lycopene and ethylene (ETH), thereby promoting tomato ripening. The combined application of Se-NP and PEN repaired the inhibitory effect of PEN on tomato ripening by up-regulating the levels of genes related to lycopene synthesis, key genes for ETH synthesis, and genes involved in cell wall lysis. The research results provide new ideas for the molecular mechanism by which Se-NP regulates the ripening process of tomato fruits. It can also serve as a theoretical foundation for future research on the inhibitory effect of repairing pesticides on fruit ripening.