| Sinusoidal magnetic field stimulates magnetosome formation and affects mamA, mms13, mms6, and magA expression in Magnetospirillum magneticum AMB-1. | |
| | |
MedLine Citation:
|
PMID: 19096456 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Magnetic particles are currently one of the most important materials in the industrial sector, where they have been widely used for biotechnological and biomedical applications. To investigate the effects of the imposed magnetic field on biomineralization in Magnetospirillum magneticum AMB-1 and to suggest a new approach that enhances formation of magnetosomes, cultures inoculated with either magnetic or nonmagnetic precultures were incubated under a sinusoidal magnetic field or geomagnetic field. The results showed that the sinusoidal magnetic field up-regulated mms6 expression in the cultures inoculated with magnetic cells, and magA, mms6, and mamA expression in the cultures inoculated with nonmagnetic cells. The applied sinusoidal magnetic field could block cell division, which could contribute to a decrease in the OD600 values and an increase in the coefficient of magnetism values of the cultures, which could mean that the percentage of mature magnetosome-containing bacteria was increased. The linearity of magnetosome chains was affected, but the number of magnetic particles in cells was increased when a sinusoidal magnetic field was applied to the cultures. The results imply that the variable intensity and orientation of the sinusoidal magnetic field resulted in magnetic pole conversion in the newly forming magnetic particles, which could affect the formation of magnetic crystals and the arrangement of the adjacent magnetosome. |
| | |
Authors:
|
Xiaoke Wang; Likun Liang; Tao Song; Longfei Wu |
Related Documents
:
|
12855816 - Electrical manipulation of magnetization reversal in a ferromagnetic semiconductor. 16292306 - Nanofabricated media with negative permeability at visible frequencies. 17370756 - Deep brain stimulation as a functional scalpel. 20166386 - Magic angle effect in normal collateral ligaments of the distal interphalangeal joint i... 11717696 - Left ventricular ejection fraction calculated from gated technetium-99-sestamibi spect. 8425726 - Evaluation of magnetic resonance imaging in the diagnosis of osteomyelitis in diabetic ... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Canadian journal of microbiology Volume: 54 ISSN: 0008-4166 ISO Abbreviation: Can. J. Microbiol. Publication Date: 2008 Dec |
Date Detail:
|
Created Date: 2008-12-19 Completed Date: 2009-04-02 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0372707 Medline TA: Can J Microbiol Country: Canada |
Other Details:
|
Languages: eng Pagination: 1016-22 Citation Subset: IM |
Affiliation:
|
Weifang Medical University, Weifang 261053, China. wangxiaoke1962@yahoo.com.cn |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adaptation, Physiological Bacterial Proteins / biosynthesis*, genetics Biotechnology Cation Transport Proteins / biosynthesis*, genetics Cell Division Cytoplasmic Vesicles / metabolism* Electromagnetic Fields* Gene Expression Regulation, Bacterial* Magnetospirillum / cytology, genetics*, metabolism* Up-Regulation |
| Chemical | |
Reg. No./Substance:
|
0/Bacterial Proteins; 0/Cation Transport Proteins; 0/MagA protein, Magnetospirillum |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Identification of human enteric pathogens in gull feces at Southwestern Lake Michigan bathing beache...
Next Document: Effects of xanthotoxin treatment on trichothecene production in Fusarium sporotrichioides.