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Metamorphosis of Magnetospirillum magneticum AMB-1 cells
Zhang Fengli1,4; Yu-Zhang, Kui2; Zhao Sanjun1; Xiao Tian5; Denis, Michel3; Wu Longfei1
AbstractMagnetospirillum magneticum strain AMB-1 belongs to the family of magnetotactic bacteria. It possesses a magnetosome chain aligning, with the assistance of cytoskeleton filaments MamK, along the long axis of the spiral cells. Most fresh M. magneticum AMB-1 cells exhibit spiral morphology. In addition, other cell shapes such as curved and spherical were also observed in this organism. Interestingly, the spherical cell shape increased steadily with prolonged incubation time. As the actin-like cytoskeleton protein MreB is involved in maintenance of cell shapes in rod-shaped bacteria such as Escherichia coli and Bacillus subtilis, the correlation between MreB protein levels and cell shape was investigated in this study. Immunoblotting analysis showed that the quantity of MreB decreased when the cell shape changed along with incubation time. As an internal control, the quantity of MamA was not obviously changed under the same conditions. Cell shape directs cell-wall synthesis during growth and division. MreB is required for maintaining the cell shape. Thus, MreB might play an essential role in maintaining the spiral shape of M. magneticum AMB-1 cells.
KeywordMagnetotactic Bacteria Magnetospirillum Magneticum Amb-1 Mreb
Indexed BySCI
WOS IDWOS:000275781400015
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.CNRS, Inst Biol Struct & Microbiol, UPR9043, Chim Bacterienne Lab, Marseille, France
2.Univ Reims, LMEN, Reims, France
3.Univ Aix Marseille 2, Ctr Oceanol Marseille, CNRS,UMR6117, Lab Microbiol Geochim & Ecol Marines, F-13288 Marseille 9, France
4.Shanghai Jiao Tong Univ, Minist Educ, Lab Marine Biotechnol, Sch Life Sci & Biotechnol,Key Lab Microbial Metab, Shanghai 200240, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
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Zhang Fengli,Yu-Zhang, Kui,Zhao Sanjun,et al. Metamorphosis of Magnetospirillum magneticum AMB-1 cells[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(2):304-309.
APA Zhang Fengli,Yu-Zhang, Kui,Zhao Sanjun,Xiao Tian,Denis, Michel,&Wu Longfei.(2010).Metamorphosis of Magnetospirillum magneticum AMB-1 cells.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(2),304-309.
MLA Zhang Fengli,et al."Metamorphosis of Magnetospirillum magneticum AMB-1 cells".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.2(2010):304-309.
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