Results 101 to 110 of about 580 (114)

Transcriptome analysis reveals physiological characteristics required for magnetosome formation in Magnetospirillum gryphiswaldense MSR‐1

Environmental Microbiology Reports, 2016
Summary Magnetosome synthesis ability of Magnetospirillum gryphiswaldense MSR‐1 in an autofermentor can be precisely controlled through strict control of dissolved oxygen concentration.
Xu, Wang, Qing, Wang, Yang, Zhang, Yinjia, Wang, Yuan, Zhou, Weijia, Zhang, Tong, Wen, Li, Li, Meiqing, Zuo, Ziding, Zhang, Jiesheng, Tian, Wei, Jiang, Ying, Li, Lei, Wang, Jilun, Li   +14 more
openaire   +2 more sources

Hexavalent chromate bioreduction by a magnetotactic bacterium Magnetospirillum gryphiswaldense MSR-1 and the effect of magnetosome synthesis.

Chemosphere, 2023
Magnetotactic bacteria (MTB) are receiving attention for heavy metal biotreatment due to their potential for biosorption with heavy metals and the capability of the magnetic recovery. In this study, we investigated the characteristics of Cr(VI) bioreduction and biosorption by an MTB isolate, Magnetospirillum gryphiswaldense MSR-1, which has a higher ...
Siang Chen Wu, Wei-Che Hsiao, Ya-Chun Zhao, Li-Fen Wu   +3 more
openaire   +2 more sources

Purified and sterilized magnetosomes from Magnetospirillum gryphiswaldense MSR-1 were not toxic to mouse fibroblasts in vitro

Letters in Applied Microbiology, 2007
To establish a criterion for measuring the purity of purified and sterilized magnetosomes from Magnetospirillum gryphiswaldense and to evaluate their toxicity for mouse fibroblasts in vitro.The purification of magnetosomes involves disrupting bacterial cells with a French Press, washing directly with PBS buffer accompanied by treatment with low power ...
L, Xiang, J, Wei, S, Jianbo, W, Guili, G, Feng, L, Ying   +5 more
openaire   +2 more sources

OxyR-Like Improves Cell Hydrogen Peroxide Tolerance by Participating in Monocyte Chemotaxis and Oxidative Phosphorylation Regulation in Magnetospirillum Gryphiswaldense MSR-1

Journal of Biomedical Nanotechnology, 2021
The formation of magnetosomes inside magnetotactic bacteria is a complex process strictly controlled by the intracellular metabolic regulatory system. A series of transcriptional regulators are involved in the biosynthesis of the magnetosome, including OxyR-Like protein, which is indispensable for the maturation of magnetosomes in Magnetospirillum ...
Yong, Ma, Fangfang, Guo, Yunpeng, Zhang, Xiuyu, Sun, Tong, Wen, Wei, Jiang   +5 more
openaire   +2 more sources

Salinity on growth and chromium reduction abilities of Magnetospirillum gryphiswaldense MSR-1

Global NEST International Conference on Environmental Science & Technology
Use of bacteria in removal of heavy metals, including hexavalent chromium Cr(VI), has been proven to be as effective yet more eco-friendly compared to other existing technologies. However, polluted wastewater usually contains high amounts of salts in addition to the heavy metals and may interfere with the bioremediation process.
JAMES IVAN Almalvez, HAO-YAN Chang, YA-CHUN Zhao, LI-FEN Wu, FLORENCIO JR. Ballesteros, SIANG CHEN Wu   +5 more
openaire   +1 more source

Influence of the magnetic field on the two-dimensional control of Magnetospirillum gryphiswaldense strain MSR-1

2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2016
Magnetotactic bacteria have the potential to controllably reach deep-seated regions of the body via vessels and achieve targeted drug delivery. In this application, motion of the magnetotactic bacteria is influenced by the strength of the external magnetic field.
Heba A. Hassan, Marc Pichel, Tijmen Hageman, Leon Abelmann, Islam S. M. Khalil   +4 more
openaire   +1 more source

Assessing the effects of NapA gene overexpression on denitrification and denitrogenation in magnetospirillum gryphiswaldense MSR-1

Archives of Microbiology
Previous research on Magnetospirillum gryphiswaldense MSR-1 found that MSR-1 has a good denitrification nitrogen removal ability and specific application prospects in the sewage biological nitrogen removal field. Therefore, this study selected the essential denitrification gene NapA in MSR-1-wt for overexpression, and the overexpressed MSR-1-NapA was ...
Jiawei, Hu, Meijing, Liu, Lu, Li, Jinjing, Hu, Cong, Wang   +4 more
openaire   +2 more sources

Effect of different metals on the chromate reductase activity of Magnetospirillum gryphiswaldense MSR-1

Global NEST International Conference on Environmental Science & Technology
Bioreduction of hexavalent chromium Cr(VI) from industrial wastewater has been extensively studied because of the process’s low cost and high effectiveness. While several bacteria were found to be capable of reducing Cr(VI) to the less toxic Cr(III), reduction in the presence of other pollutants is usually not studied. This study explores the effect of
JAMES IVAN Almalvez, HAO-YAN Chang, YA-CHUN Zhao, LI-FEN Wu, FLORENCIO JR. Ballesteros, SIANG CHEN Wu   +5 more
openaire   +1 more source

Ferrous iron transport protein B gene (feoB1) plays an accessory role in magnetosome formation in Magnetospirillum gryphiswaldense strain MSR-1

Research in Microbiology, 2008
To investigate the role of ferrous iron transport (Feo) systems in magnetosome formation, the gene for protein FeoB (feoB1), encoding 704 amino acids, was cloned from magnetotactic bacterium Magnetospirillum gryphiswaldense strain MSR-1. feoB1 constitutes a putative operon with feoA1, and the interval between the two genes is 36 base pairs.
Chengbo, Rong, Yijun, Huang, Weijia, Zhang, Wei, Jiang, Ying, Li, Jilun, Li   +5 more
openaire   +2 more sources

High-yield growth and magnetosome formation by Magnetospirillum gryphiswaldense MSR-1 in an oxygen-controlled fermentor supplied solely with air

Applied Microbiology and Biotechnology, 2008
Magnetotactic bacteria are difficult to grow under defined conditions in culture, which has presented a major obstacle to commercial application of magnetosomes. We studied the relationships among the cell growth, magnetosome formation, dissolved oxygen concentration (DO), and the ability to supply oxygen to the cells.
Jian-Bo, Sun, Feng, Zhao, Tao, Tang, Wei, Jiang, Jie-sheng, Tian, Ying, Li, Ji-Lun, Li   +6 more
openaire   +2 more sources