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December 11, 2025PlantsOpen Access

Synergistic Interaction Between VyMYB24 from Chinese Wild Grape Vitis yeshanensis and Cytokinin Enhances Cold Tolerance in Transgenic Tobacco

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Authors

KLKaiwei LiYLYihai LuJLJiaxin Li

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Overview

Transgenic tobacco shows improved cold tolerance with VyMYB24 and cytokinin treatment, indicating enhanced defense mechanisms.

Key Points

  • This research aims to examine the interaction between VyMYB24 and cytokinin in enhancing cold tolerance in tobacco plants.
  • Transgenic tobacco plants overexpressing VyMYB24 were treated with synthetic cytokinin CPPU.
  • Plants were evaluated under low-temperature stress for physiological responses and biochemical markers.
  • Measurements included chlorophyll content, photosynthetic rate, relative conductivity, and antioxidant enzyme activities.
  • Tobacco plants with VyMYB24 and CPPU showed reduced wilting and higher chlorophyll contents.
  • Net photosynthetic rate improved compared to control groups.
  • Lower levels of malondialdehyde and enhanced accumulation of proline were observed.
  • Activities of antioxidant enzymes like superoxide dismutase and peroxidase increased, while levels of reactive oxygen species were reduced.

Cite This Study

Li et al. (2025) studied this question.

synapsesocial.com/papers/69401b172d562116f28f73e9https://doi.org/10.3390/plants14243777
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