Blackwell K J, Singleton I, Tobin J M
School of Biological Sciences, Dublin City University, Ireland.
Appl Microbiol Biotechnol. 1995 Aug-Sep;43(4):579-84. doi: 10.1007/BF00164757.
This review addresses metal uptake specifically by yeast. Metal uptake may be passive, active or both, depending on the viability of the biomass, and is influenced by a number of environmental and experimental factors. Uptake is typically accompanied by a degree of ion exchange and, under certain conditions, may be enhanced by the addition of an energy source. Intracellularly accumulated metal is most readily associated with the cell wall and vacuole but may also be bound by other cellular organelles and biomolecules. The intrinsic biochemical, structural and genetic properties of the yeast cell along with environmental conditions are crucial for its survival when exposed to toxic metals. Conditions of pH, temperature and the presence of additional ions, amongst others, have varying effects on the metal uptake process. We conclude that yeasts have contributed significantly to our understanding of the metal uptake process and suggest directions for future work.
本综述专门探讨酵母对金属的吸收。金属吸收可能是被动的、主动的或两者兼而有之，这取决于生物质的活力，并受到许多环境和实验因素的影响。吸收通常伴随着一定程度的离子交换，并且在某些条件下，添加能源可能会增强吸收。细胞内积累的金属最容易与细胞壁和液泡结合，但也可能被其他细胞器和生物分子结合。酵母细胞的内在生化、结构和遗传特性以及环境条件对于其在接触有毒金属时的存活至关重要。pH值、温度以及其他离子的存在等条件对金属吸收过程有不同的影响。我们得出结论，酵母对我们理解金属吸收过程做出了重大贡献，并提出了未来工作的方向。
