Department of Plant Metal Homeostasis, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, 1 Miecznikowa Str, 02-096, Warszawa, Poland.
Biometals. 2023 Apr;36(2):351-370. doi: 10.1007/s10534-022-00431-3. Epub 2022 Sep 12.
Tobacco (Nicotiana tabacum L.) is an important industrial crop plant. However, it efficiently accumulates metals, primarily cadmium (Cd) and also zinc (Zn), in its leaves. Therefore, it could be a source of cadmium intake by smokers. On the other hand, as a high leaf metal accumulator, it is widely used for phytoremediation of metal-contaminated soil. Both issues provide an important rationale for investigating the processes regulating metal homeostasis in tobacco. This work summarizes the results of research to date on the understanding of the molecular mechanisms determining the effective uptake of Zn and Cd, their translocation into shoots and accumulation in leaves. It also discusses the current state of research to improve the phytoremediation properties of tobacco through genetic modification and to limit leaf Cd content for the tobacco industry.
烟草（Nicotiana tabacum L.）是一种重要的工业作物。然而，它的叶子能有效地积累金属，主要是镉（Cd）和锌（Zn）。因此，它可能是吸烟者摄入镉的来源。另一方面，作为一种高叶金属积累植物，它被广泛用于受金属污染土壤的植物修复。这两个问题为研究烟草中金属稳态调节过程提供了重要的依据。这项工作总结了迄今为止关于理解决定 Zn 和 Cd 有效吸收、向地上部分转运和在叶片中积累的分子机制的研究结果。它还讨论了通过遗传修饰提高烟草植物修复性能和限制烟草工业中叶片 Cd 含量的研究现状。
