THE GROWTH PROCESS AND THE MINERALOGY OF MANGANESE OXIDES BY MOCROBIAL MEDIATION

微生物介导下氧化锰的生长过程和矿物学

• 批准号: 09640585
• 负责人: SATO Yoshio
• 金额: $ 1.86万
• 依托单位: Tokai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640585/
• 关键词: manganese oxidizing bacteria; microbial mediation; manganese oxide; bacteriolysis; honeycomb structure; seawater; growth process; 蜂の巣構造; マンガン酸塩; 酸化; マンガン酸化活性; マンガン酸化細菌; 10Å manganate; γ-MnO(OH); 外洋水; 沿岸水; 地下海水; ハニカム構造; 海洋環境; 自己触媒; 表面形態

Many slide glasses were set up in the well seawater supply system for aquaria at the Marine Science Museum of Tokai University, where manganese oxides are precipitating by microbial mediation. Manganese- oxidizing bacteria and oxides on the slide glasses were examined in time-series and the growth process of manganese oxides was observed. At first, bacteria attached to the slide glass scatteringly and then got together. The clumped bacteria were decomposed by bacteriolysis. With bacteriolysis, manganese oxides started to precipitate. Manganese oxides grew from doughnut-shaped holdfasts to cauliflower-shaped ones through dome-shaped ones. The honeycomb structure characteristic to marine manganates appeared on the doughnut-shaped holdfasts.Manganese oxide minerals formed by microbial mediation in seawater (MnィイD12+ィエD1:ca.50 ppm; pH: ca.8.0) were investigated by combinations of various manganese-oxidizing bacteria and seawater. The minerals produced were hydrohausmannite, feitknechtite (β-MnOOH), manganite (γ-MnOOH), 10 AィイD4゜ィエD4 manganate (buserite or todorokite) and unnamed MnOィイD22ィエD2 mineral (JCPDS Card: 42-1316), although manganese oxides were not precipitated in some bacterium-seawater combinations. Each oxide mineral was formed by direct oxidation of MnィイD12+ィエD1 without intermediates. High valence oxides were formed when the manganese-oxidizing activity of bacteria was high, and vice versa. Mn(IV) oxide minerals in marine environments may be formed by microbial catalysis rather than by pure inorganic processes.

在东海大学海洋科学博物馆的水族馆水井海水供应系统中设置了许多载玻片，其中氧化锰通过微生物介导沉淀。对载玻片上的锰氧化细菌和锰氧化物进行了时间序列检测，观察了锰氧化物的生长过程。起初，细菌分散地附着在载玻片上，然后聚集在一起。通过溶菌作用将聚集的细菌分解。随着细菌溶解，锰氧化物开始沉淀。锰氧化物的生长从甜甜圈形的holdfasts到花椰菜形的，通过圆顶状的。研究了在海水（Mn_（12）+Mn_（13）D_1：约50 ppm; pH：约8.0）中，不同锰氧化菌与海水混合培养时，微生物介导形成的锰氧化物矿物。所产生的矿物为水黑锰矿、铁锰锰矿（β-MnOOH）、锰锰矿（γ-MnOOH）、10 A锰氧化物D4锰氧化物D4锰氧化物（水锰矿或钙锰矿）和未命名的MnO锰氧化物D22锰氧化物D2矿物（JCPDS卡片：42-1316），尽管锰氧化物在某些细菌-海水组合中没有沉淀。每种氧化物矿物都是由Mn_（12）D_1 + Mn_（12）D_1直接氧化形成的，没有中间产物。当细菌的锰氧化活性高时，形成高价氧化物，反之亦然。海洋环境中的锰（IV）氧化物矿物可能是由微生物催化而不是由纯无机过程形成的。

项目成果

竹松伸: "マンガン団塊-その生成機構と役割"恒星社厚生閣. 188 (1998)

Shin Takematsu：“锰结核 - 它们的形成机制和作用” Seiseisha Koseikaku 188 (1998)。

N. NUMATA, MIYATA, Y., TOYOTA, Y., SATO, Y. and ODA, S.: "Applicability Steel-Marking Slag as Improvement of Bottom Sediment ( I )"Bulletin of Society of Sea Water Science Japan. 53,4 (in Japanese). 283-294 (1999)

N. NUMATA、MIYATA, Y.、TOYOTA, Y.、SATO, Y. 和 ODA, S.：“钢标渣作为底部沉积物改进的适用性（I）”日本海水科学学会通报。

S. Volker et al.: "Cell-substrate interactions in chidaria"Microscopy Research and Technique. 44. 254-268 (1999)

S. Volker 等人：“chidaria 中的细胞-基质相互作用”显微镜研究和技术。

S. VOLKER, ONO, S. and MULLER, S.R.: "Cell-Substrate Interactions in Cnidaria"Microscopy Research and Technique. 44. 254-268 (1999)

S. VOLKER、ONO, S. 和 MULLER, S.R.：“刺胞动物中的细胞-基质相互作用”显微镜研究和技术。

H. Nagura et al: "Cytochmical research on endogenous peroxidase activity in the intestinal mucosa and distribution of mucous productive cell in Japanese horse mackerel"Proceeding of the Japanese Society for mucosal immunology. 36. 35-37 (1999)

H. Nagura 等人：“日本竹荚鱼肠粘膜内源性过氧化物酶活性和粘液生成细胞分布的细胞化学研究”日本粘膜免疫学会会刊。