NDLI: Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea

Content Provider	Springer Nature Link
Author	Zhou, Ke Pan, Hongmiao Zhang, Shengda Yue, Haidong Xiao, Tian Wu, Longfei
Copyright Year	2011
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.
Starting Page	246
Ending Page	251
Page Count	6
File Format	PDF
ISSN	02544059
Journal	Chinese Journal of Oceanology and Limnology
Volume Number	29
Issue Number	2
e-ISSN	19935005
Language	English
Publisher	SP Science Press
Publisher Date	2011-03-02
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	multicellular magnetotactic prokaryotes rosette-like magnetosomes magnetite Yellow Sea Oceanography
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Oceanography

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