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April 15, 2026PlantsOpen Access

Systemic Effects of Nitrate, Asparagine, and Glutamine on Nodulation and Biological Nitrogen Fixation in Soybean

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Authors

JSJixuan SunNortheast Agricultural UniversityDZDuo ZhaoNortheast Agricultural UniversityXLXin LiTongji University

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Overview

Investigates the impact of nitrate, asparagine, and glutamine on soybean nodulation, suggesting implications for nitrogen fixation.

Key Points

  • The aim is to explore how nitrate, asparagine, and glutamine influence nodulation and biological nitrogen fixation in soybean.
  • Used a unilateral nodulated double-root soybean system for testing.
  • Supplied non-nodulated side roots with nitrate, asparagine, or glutamine.
  • Evaluated changes in nodule number, dry weight, nitrogenase activity, and nitrogen compound content after treatment.
  • All N sources reduced nodule number, dry weight, and nitrogenase activity after 4 and 10 days.
  • Nitrate and asparagine treatments increased ureides and asparagine accumulation in nodules.
  • Glutamine did not significantly affect nitrogenous compounds in nodules.

Cite This Study

Sun et al. (2026) studied this question.

synapsesocial.com/papers/69df2abce4eeef8a2a6afcbahttps://doi.org/10.3390/plants15081187
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