锰结核的细菌学：I. 结核富集物中细菌对锰的作用
Bacteriology of Manganese Nodules: I. Bacterial Action on Manganese in Nodule Enrichments.
作者信息
Ehrlich H L
机构信息
Department of Biology, Rensselaer Polytechnic Institute, Troy, New York.
出版信息
Appl Microbiol. 1963 Jan;11(1):15-9. doi: 10.1128/am.11.1.15-19.1963.
Bacteria, found in manganese nodules from the Atlantic Ocean, enhance the adsorption of Mn from sea water by crushed manganese nodules in the presence of peptone. When bacterial outgrowth from crushed manganese nodules was experimentally delayed, peptone did not enhance Mn adsorption by nodular substance, but hindered it in some cases. A mechanism to explain the role of bacteria in enhancing Mn adsorption by manganese nodules is presented. Oyster shells were shown to adsorb Mn in the absence of bacteria. Peptone did not enhance the rate of Mn adsorption. Adsorbed Mn was not visibly oxidized during experimental observation. These results suggest one way whereby nodule formation may be initiated in the oceans. Some bacteria in the nodules were found to release manganese from them in the presence of glucose and peptone. Bacteria may, therefore, play a role not only in nodule buildup but also in nodule breakdown.
在来自大西洋的锰结核中发现的细菌，在蛋白胨存在的情况下，可增强破碎的锰结核对海水中锰的吸附作用。当通过实验延迟破碎锰结核上细菌的生长时，蛋白胨不会增强结核物质对锰的吸附，反而在某些情况下会起到阻碍作用。本文提出了一种机制来解释细菌在增强锰结核对锰吸附方面的作用。研究表明，在没有细菌的情况下，牡蛎壳也能吸附锰。蛋白胨不会提高锰的吸附速率。在实验观察期间，吸附的锰没有明显被氧化。这些结果提示了一种海洋中结核形成可能起始的方式。研究发现，结核中的一些细菌在葡萄糖和蛋白胨存在的情况下会从结核中释放出锰。因此，细菌可能不仅在结核的形成过程中发挥作用，还在结核的分解过程中发挥作用。
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