GM Poplar Trees Show Tolerance to Salt Stress
April 22, 2026| |
Researchers from the Siberian Branch of the Russian Academy of Sciences, Russia, developed two transgenic lines of genetically modified (GM) poplar trees carrying dehydrin genes TaWCS120 and HvDHN5 to improve tolerance to high salinity. The findings of the study offer potential benefits for both the wood industry and agriculture.
The research team exposed both modified and non-modified plants to increasing concentrations of sodium chloride (NaCl) to assess root formation and growth. The study found that high concentrations significantly reduced growth in control plants and those carrying the TaWCS120 gene. In contrast, poplar trees with the HvDHN5 gene maintained normal growth under moderate stress and showed better resilience as salt levels increased.
The findings revealed that HvDHN5-transgenic poplars survived high salinity conditions that proved lethal to non-modified plants. The researchers conclude that these genes could be used to develop salt tolerant crops and trees, which could support productivity in challenging environments.
For more information, read the abstract from EDP Sciences.
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