Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China.
J Integr Plant Biol. 2023 Jun;65(6):1362-1368. doi: 10.1111/jipb.13467. Epub 2023 Mar 24.
Nitrogen (N) is an essential macronutrient for plants and profoundly affects crop yields and qualities. Ammonium (NH ) and nitrate (NO ) are major inorganic N forms absorbed by plants from the surrounding environments. Intriguingly, NH is usually toxic to plants when it serves as the sole or dominant N source. It is thus important for plants to coordinate the utilization of NH and the alleviation of NH toxicity. To fully decipher the molecular mechanisms underlying how plants minimize NH toxicity may broadly benefit agricultural practice. In the current minireview, we attempt to discuss recent discoveries in the strategies for mitigating NH toxicity in plants, which may provide potential solutions for improving the nitrogen use efficiency (NUE) and stress adaptions in crops.
氮（N）是植物必需的大量营养素，对作物产量和品质有深远影响。铵（NH ）和硝酸盐（NO ）是植物从周围环境中吸收的主要无机氮形式。有趣的是，当 NH 作为唯一或主要氮源时，通常对植物有毒。因此，植物协调利用 NH 和减轻 NH 毒性非常重要。充分揭示植物减轻 NH 毒性的分子机制可能会广泛有益于农业实践。在本期简评中，我们试图讨论减轻植物 NH 毒性策略的最新发现，这可能为提高作物氮利用效率（NUE）和适应胁迫提供潜在解决方案。
