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elemental sulfur. This elemental sulfur accumulates as sulfur globules, intracellularly or extracellularly, to be consumed under low sulfur concentrations. To ameliorate low oxidant concentrations (that is, to find an electron sink), sulfur oxidizers like cable bacteria form long chains that span the length between oxic and sulfidic zones of the coastal sediments. The bacteria present in the sulfide rich zones oxidize the sulfide and transport the electrons to the bacteria present in the oxygen rich zone

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