Zhou, K., Pan, H., Zhang, S. et al. Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea., Chin. J. Ocean. Limnol. 29, 246–251 (2011). https://doi.org/10.1007/s00343-011-0032-8
DOI:
Zhou, K., Pan, H., Zhang, S. et al. Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea., Chin. J. Ocean. Limnol. 29, 246–251 (2011). https://doi.org/10.1007/s00343-011-0032-8DOI:
Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea
摘要
Abstract
Multicellular magnetotactic prokaryotes (MMPs) are a group of aggregates composed of 7–45 gram-negative cells synthesizing intracellular magnetic crystals. Although they are thought to be globally distributed
MMPs have been observed only in marine environments in America and Europe. Most MMPs share a rosette-like morphology and biomineralize iron sulfide crystals. In the present study
abundant MMPs were observed
with a density of 26 ind./cm3
in the sediments of a coastal lagoon
Lake Yuehu
in the Yellow Sea. Optical microscopy showed that all of them were rosette shaped with a diameter of 5.5±0.8 μm. Transmission electron microscopy revealed that these MMPs were composed of 10–16 ovoid cells and flagellated peritrichously. High-resolution transmission electron microscopy and energy dispersive X-ray analysis indicated that they biomineralized bullet-shaped magnetite crystals in highly organized parallel chains within which the magnetosomes were oriented in the same direction. This is the first report of MMPs from Asia and demonstrates the ubiquitous distribution of MMPs.
关键词
Keywords
references
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