Abstract

Microbial bio-transformations of the essential trace element selenium are now recognized to occur among a wide variety of microorganisms. These transformations are used to convert this element into its assimilated form of selenocysteine, which is at the active center of a number of key enzymes, and to produce selenium nanoparticles, quantum dots, metal selenides, and methylated selenium species that are indispensable for biotechnological and bioremediation applications. The focus of this review is to present the state-of-the-art of all aspects of the investigations into the bacterial transformations of selenium species, and to consider the characterization and biotechnological uses of these transformations and their products.

摘要

现已认识到必需微量元素硒的微生物生物转化发生在多种微生物中。这些转化可用于将这种元素转化为同化形式的硒代半胱氨酸，硒代半胱氨酸位于许多关键酶的活性中心，并产生硒纳米颗粒，量子点，金属硒化物和甲基化硒物种，这些物质对于生物技术和生物修复应用。这篇综述的重点是介绍硒物种细菌转化研究的各个方面的最新技术，并考虑这些转化及其产物的表征和生物技术用途。