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Genetic research

Study Uncovers Molecular Mechanisms of Salinity Acclimation in Oriental River Prawn

Strategic Insights

— 1 min read

Scientists at the Ministry of Agriculture and Rural Affairs in China have made a groundbreaking discovery regarding the molecular mechanisms of salinity acclimation in the Oriental River Prawn, *Macrobrachium nipponense*. This research has significant implications for improving cultivation practices in brackish water environments. The study found that the species exhibits normal survival and reproductive capacity in natural aquatic habitats with salinity levels up to 10 parts per thousand (ppt). The molecular mechanisms underlying salinity acclimation were investigated, revealing the critical roles of glutathione peroxidase and Na+/K+-ATPase in mitigating oxidative stress induced by elevated salinity.

Key Takeaways:

  • The Oriental River Prawn, *Macrobrachium nipponense*, is a commercial decapod species that predominantly inhabits freshwater ecosystems or environments with low salinity.
  • The species exhibits normal survival and reproductive capacity in natural aquatic habitats with salinity levels up to 10 parts per thousand (ppt).
  • The molecular mechanisms underlying salinity acclimation in *M. nipponense* were investigated, revealing the critical roles of glutathione peroxidase and Na+/K+-ATPase.
  • Histological analysis revealed distinct pathological alterations in the hepatopancreas of *M. nipponense* following 7-day salinity exposure.
  • Transcriptomic profiling of *M. nipponense* hepatopancreas suggested coordinated activation of both immune and energy metabolic processes during salinity acclimation.
  • This study provides molecular insights into the salinity adaptation mechanisms in *M. nipponense*, offering potential applications for improving cultivation practices in brackish water environments.

Statistics:

  • Salinity levels up to 10 parts per thousand (ppt) do not affect the survival and reproductive capacity of *M. nipponense*.
  • The molecular mechanisms of salinity acclimation in *M. nipponense* involve the critical roles of glutathione peroxidase and Na+/K+-ATPase.
  • 7-day salinity exposure caused distinct pathological alterations in the hepatopancreas of *M. nipponense*.
  • Transcriptomic profiling revealed coordinated activation of both immune and energy metabolic processes during salinity acclimation.

Sources:

  • Ministry of Agriculture and Rural Affairs
  • Animals

* http://www.mdpi.com/journal/animals/

  • MDPI AG (publisher)
  • NewsRx (citing organization)
  • Jin, S.; et al. (2025). Impact of Salinity Stress on Antioxidant Enzyme Activity, Histopathology, and Gene Expression in the Hepatopancreas of the Oriental River Prawn, *Macrobrachium nipponense*. Animals, 15(15), 2319.

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