Unexpected Diversity of Magnetococci in Intertidal Sediments of Xiaoshi Island in the North Yellow Sea
Chen, Haitao1,2; Li, Jinhua3; Xing, Xiang2; Du, Zongjun2; Chen, Guanjun2,4
2015
Source PublicationJOURNAL OF NANOMATERIALS
AbstractMagnetotactic bacteria (MTB) are a group of prokaryotes that, despite their high morphological, phylogenetic, and ecological diversity, share a common capability of forming intracellular nanocrystals of magnetite (Fe3O4) or greigite (Fe3S4), called magnetosomes, and swimming along geomagnetic field lines in a process called magnetotaxis. In this study, we investigated the MTB diversity within the intertidal sediments near Xiaoshi Island (Weihai) in the North Yellow Sea using a combination of molecular ecology techniques and transmission electron microscopy (TEM). The combination of restriction fragment length polymorphism (RFLP) analysis and 16S rRNA gene sequencing revealed seven new MTB genera affiliated with the Alphaproteobacteria class. Fluorescence in situ hybridization (FISH) analyses suggested that one magnetotactic coccus (designated as WHI-2) is the dominant species. TEM observations and energy dispersive X-ray analyses revealed that MTB cells mainly form magnetite magnetosomes that are organized into two chains of magnetosomes composed of e-prismatic magnetite crystals. This finding suggests the adaptation of a magnetotactic bacterial population to the marine tide. This is the first report of magnetotactic bacteria near Xiaoshi Island, which should be useful for studies of biogeochemical cycling and the geohistory of this area.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1155/2015/902121
Indexed BySCI
Language英语
WOS KeywordIN-SITU HYBRIDIZATION ; MAGNETOTACTIC BACTERIA ; ELECTRON-MICROSCOPY ; MARINE-BACTERIA ; MAGNETITE ; CHINA ; MAGNETOSOMES ; BIOMINERALIZATION ; IDENTIFICATION ; POPULATION
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000364131300001
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/888
Collection深海科学研究部_深海生物学研究室_深海微生物细胞生物学研究组
Affiliation1.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Dept Deep Sea Sci, Deep Sea Microbial Cell Biol, Sanya 572000, Peoples R China
2.Shandong Univ, Coll Marine Sci, Weihai 264209, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
4.Shandong Univ, State Key Lab Microbial Technol, Jinan 250100, Peoples R China
Recommended Citation
GB/T 7714
Chen, Haitao,Li, Jinhua,Xing, Xiang,et al. Unexpected Diversity of Magnetococci in Intertidal Sediments of Xiaoshi Island in the North Yellow Sea[J]. JOURNAL OF NANOMATERIALS,2015.
APA Chen, Haitao,Li, Jinhua,Xing, Xiang,Du, Zongjun,&Chen, Guanjun.(2015).Unexpected Diversity of Magnetococci in Intertidal Sediments of Xiaoshi Island in the North Yellow Sea.JOURNAL OF NANOMATERIALS.
MLA Chen, Haitao,et al."Unexpected Diversity of Magnetococci in Intertidal Sediments of Xiaoshi Island in the North Yellow Sea".JOURNAL OF NANOMATERIALS (2015).
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