BACKGROUND: Glutamine synthetase (GS) plays a central role in plant nitrogen assimilation. a process intimately linked to soil water availability. We previously showed that hybrid poplar (Populus tremula X alba. INRA 717-1B4) expressing ectopically a pine cytosolic glutamine synthetase gene (GS1a) display enhanced tolerance to drought. https://www.alarecre.com/Music-Is-Freedom-Google-Pixel-7-Pro-Skin-p67850/