Morphology of a ferric iron-encrusted biofilm forming on the shell of a burrowing bivalve (Mollusca)
Morphology of a ferric iron-encrusted biofilm forming on the shell of a burrowing bivalve (Mollusca)
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穴居双壳类（软体动物）壳上形成的三价铁生物膜的形态
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
C. Ridder
中科院分区：
文献类型：
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作者：
D. Gillan;C. Ridder
双壳类Montacuta ferruginosa的外壳通常覆盖有铁锈色和三价铁结壳的生物膜。后者是具有3个单独层的结构化微生物垫。外层基本上是微生物（丝状细菌和原生动物）。中间层是微生物和矿物质（重铁结壳丝状细菌和原生动物）。内层基本上是矿物（三价铁沉积物），通常没有活的微生物。生物膜中最丰富的微生物是与贝氏菌科（Beggiatoaceae）相关的丝状细菌。这种矿物-微生物垫的形成可能部分归因于一系列过程：（1）外层细菌鞘中的三价铁沉积;（2）中间层细菌裂解后，重三价铁结壳鞘的释放和积累;（3）细菌鞘的降解和内层三价铁矿物的积累。© Inter-Research 1997.
The shell of the bivalve Montacuta ferruginosa is usually covered with a rust-coloured and ferric iron-encrusted biofilm. The latter is a structured microbial mat with 3 separate layers. The outer layer is essentially microbial (filamentous bacteria and protozoa). The intermediary layer is both microbial and mineral (heavily ferric iron-encrusted filamentous bacteria and protozoa). The inner layer is essentially mineral (ferric iron deposits) and generally devoid of living microorganisms. The most abundant microorganisms in the biofilm are filamentous bacteria related to Beggiatoaceae. The genesis of this mineral-microbial mat could be partly due to a sequence of processes: (1) ferric iron deposition within bacterial sheaths in the outer layer; (2) the release and accumulation of heavily ferric iron-encrusted sheaths after lysis of the bacteria in the intermediary layer; (3) degradation of bacterial sheaths and accumulation of ferric iron minerals in the inner layer. © Inter-Research 1997.