The potential of Pseudomonas for bioremediation of oxyanions.
The potential of Pseudomonas for bioremediation of oxyanions.
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DOI：
10.1111/1758-2229.12999
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发表时间：
2021-08
影响因子：
3.3
通讯作者：
Sofía Vieto;Diego Rojas-Gätjens;José I. Jiménez;M. Chavarría
中科院分区：
文献类型：
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作者：
Sofía Vieto;Diego Rojas-Gätjens;José I. Jiménez;M. Chavarría
非金属、金属和类金属氧阴离子天然存在于地壳的矿物和岩石中，并且大多以低浓度存在或局限于地球的特定区域。然而，城市发展、采矿、农业、工业活动和新技术等人类活动增加了氧阴离子向环境的释放，威胁自然生态系统的可持续性，进而影响人类发展。由于这些原因，必须实施新方法，不仅可以修复氧阴离子污染物，还可以从环境中的氧阴离子中回收有价值的元素。从这个角度来看，微生物的使用是作为物理、机械和化学方法的补充策略而出现的。在这篇综述中，我们讨论了假单胞菌属为氧阴离子生物修复提供的机会，这源于其专门的中央代谢和这些细菌基因组中存在的大量氧化还原酶。最后，我们回顾了目前关于假单胞菌属特定氧阴离子转运和代谢的知识。我们认为假单胞菌属是开发将氧阴离子升级改造为增值金属和类金属副产品的生物技术方法的绝佳起点。
Non-metal, metal and metalloid oxyanions occur naturally in minerals and rocks of the Earth's crust and are mostly found in low concentrations or confined in specific regions of the planet. However, anthropogenic activities including urban development, mining, agriculture, industrial activities and new technologies have increased the release of oxyanions to the environment, which threatens the sustainability of natural ecosystems, in turn affecting human development. For these reasons, the implementation of new methods that could allow not only the remediation of oxyanion contaminants but also the recovery of valuable elements from oxyanions of the environment is imperative. From this perspective, the use of microorganisms emerges as a strategy complementary to physical, mechanical and chemical methods. In this review, we discuss the opportunities that the Pseudomonas genus offers for the bioremediation of oxyanions, which is derived from its specialized central metabolism and the high number of oxidoreductases present in the genomes of these bacteria. Finally, we review the current knowledge on the transport and metabolism of specific oxyanions in Pseudomonas species. We consider that the Pseudomonas genus is an excellent starting point for the development of biotechnological approaches for the upcycling of oxyanions into added-value metal and metalloid byproducts.