关于莱茵衣藻对汞-203的代谢研究。

Metabolic studies of Hg-203 on Chlamydomonas reinhardi.

作者信息

Macka W, Wihlidal H, Stehlik G, Washüttl J, Bancher E

出版信息

Experientia. 1978 May 15;34(5):602-3. doi: 10.1007/BF01936983.

DOI:10.1007/BF01936983

Abstract

Sterile cultures of Chlamydomonas reinhardi, WT+, were treated with Hg-203 at 25 degrees C to identify probably formed volatile mercury compounds. Experiments were performed with living and dead cells under aerobic or anaerobic conditions, respectively, and the mercury concentration was measured in the system algae/nutrient medium. We found a timerelated decrease of mercury concentration in the cell suspension and the cell-free nutrient medium due to a reduction of Hg++ to Hg0, probably caused by extracellular enzymes; monomethyl or dimethyl mercury could not be detected.

摘要

莱茵衣藻野生型（WT+）的无菌培养物在25摄氏度下用汞-203处理，以鉴定可能形成的挥发性汞化合物。分别在需氧或厌氧条件下对活细胞和死细胞进行实验，并测量藻类/营养培养基系统中的汞浓度。我们发现，由于Hg++还原为Hg0，细胞悬浮液和无细胞营养培养基中的汞浓度随时间下降，这可能是由细胞外酶引起的；未检测到一甲基汞或二甲基汞。