Current view of iron biomineralization in magnetotactic bacteria

Ben-Shimon, Shirel; Stein, Daniel; Zarivach, Raz

doi:10.1016/j.yjsbx.2021.100052

Cited by 10 publications

(10 citation statements)

References 29 publications

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“…Based on the results obtained in a detailed study of Magnetospirillum gryphiswaldense MSR-1 and M. magneticum AMB-1 strains, the mechanism of magnetosome biomineralization was suggested, with mam genes being mainly involved. Magnetosome formation is a complex process that has been divided into 4 steps, each of which involves certain Mam proteins [ 135 , 136 , 137 , 138 ]. The magnetosome membrane is the result of the invagination of the cytoplasmic membrane [ 139 , 140 ].…”

Section: Biogenic Nanoparticlesmentioning

confidence: 99%

“…The magnetosome membrane is the result of the invagination of the cytoplasmic membrane [ 139 , 140 ]. The initiation point of the invagination process is apparently not determined by the specific composition of lipids in the membrane but rather is triggered by the presence of certain Mam proteins on it [ 137 ]. The minimal protein complex MamLQBIEMO enables proper invagination, whereas magnetite biomineralization requires additional proteins [ 119 ].…”

Section: Biogenic Nanoparticlesmentioning

confidence: 99%

“…When optimal physicochemical conditions are achieved in the magnetosome vesicle, one magnetite crystal per magnetosome is synthesized, which has a species-specific morphology [ 148 ]. Alignment into the chains occurs simultaneously with nucleation and crystal growth [ 137 ]. MamK, MamJ, and MamY are taking part in the chain organization [ 139 , 149 ].…”

Section: Biogenic Nanoparticlesmentioning

confidence: 99%

“…Proteins solved structures are in ribbon representation. Reprinted from [ 137 ], license CC BY-NC-ND 4.0.…”

Section: Figurementioning

confidence: 99%

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Biosensors and Drug Delivery in Oncotheranostics Using Inorganic Synthetic and Biogenic Magnetic Nanoparticles

et al. 2022

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Magnetic nanocarriers have attracted attention in translational oncology due to their ability to be employed both for tumor diagnostics and therapy. This review summarizes data on applications of synthetic and biogenic magnetic nanoparticles (MNPs) in oncological theranostics and related areas. The basics of both types of MNPs including synthesis approaches, structure, and physicochemical properties are discussed. The properties of synthetic MNPs and biogenic MNPs are compared with regard to their antitumor therapeutic efficiency, diagnostic potential, biocompatibility, and cellular toxicity. The comparative analysis demonstrates that both synthetic and biogenic MNPs could be efficiently used for cancer theranostics, including biosensorics and drug delivery. At the same time, reduced toxicity of biogenic particles was noted, which makes them advantageous for in vivo applications, such as drug delivery, or MRI imaging of tumors. Adaptability to surface modification based on natural biochemical processes is also noted, as well as good compatibility with tumor cells and proliferation in them. Advances in the bionanotechnology field should lead to the implementation of MNPs in clinical trials.

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Section: Biogenic Nanoparticlesmentioning

confidence: 99%

Section: Biogenic Nanoparticlesmentioning

confidence: 99%

Section: Biogenic Nanoparticlesmentioning

confidence: 99%

“…Proteins solved structures are in ribbon representation. Reprinted from [ 137 ], license CC BY-NC-ND 4.0.…”

Section: Figurementioning

confidence: 99%

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Biosensors and Drug Delivery in Oncotheranostics Using Inorganic Synthetic and Biogenic Magnetic Nanoparticles

et al. 2022

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“…The findings have contributed to a basic framework for understanding the natural ecological distribution and diversity of MTB (Bazylinski & Trubitsyn, 2019; Lefèvre & Bazylinski, 2013). Moreover, they provide a complementary strategy to achieve comprehensive understanding of the biomineralization and magnetism of MTB systems (Amor et al, 2020; Ben‐Shimon et al, 2021; Li et al, 2013; Li et al, 2020b; Li et al, 2020c; Pósfai et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Identification of sulfate‐reducing magnetotactic bacteria via a group‐specific 16S rDNA primer and correlative fluorescence and electron microscopy: Strategy for culture‐independent study

Liu

Menguy

et al. 2022

Environmental Microbiology

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Magnetotactic bacteria (MTB) biomineralize intracellular magnetic nanocrystals and swim along geomagnetic field lines. While few axenic MTB cultures exist, living cells can be separated magnetically from natural environments for analysis. The bacterial universal 27F/1492R primer pair has been used widely to amplify nearly full-length 16S rRNA genes and to provide phylogenetic portraits of MTB communities. However, incomplete coverage and amplification biases inevitably prevent detection of some phylogenetically specific or non-abundant MTB. Here, we propose a new formulation of the upstream 390F primer that we combined with the downstream 1492R primer to specifically amplify 1100-bp 16S rRNA gene sequences of sulfate-reducing MTB in freshwater sediments from Lake Weiyanghu, Xi'an, northwestern China. With correlative fluorescence in situ hybridization and scanning/transmission electron microscopy, three novel MTB strains (WYHR-2, WYHR-3 and WYHR-4) from the Desulfobacterota phylum were identified phylogenetically and structurally at the single-cell level. Strain WYHR-2 produces bullet-shaped magnetosome magnetite, while the other two strains produce both cubic/prismatic greigite and bullet-shaped magnetite. Our results expand knowledge of bacterial diversity and magnetosome biomineralization of sulfate-reducing MTB. We also propose a general strategy for identifying and characterizing uncultured MTB from natural environments.

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Micro/Nanofabrication, Assembly, and Actuation Based on Microorganisms: Recent Advances and Perspectives

Gong

Sun

Li³

et al. 2023

Small Structures

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Microorganisms become new sources for fabricating intricate micro/nano structures via bottom‐up approaches. Produced from nature, microorganism biotemplates exhibit unique structural and material features over thousands of years of revolution. They are considerably superior and cost‐effective for fabricating complex and heterogeneous structures when compared to other micro/nanofabrication techniques. Herein, the recent advances in biologically driven micro/nanofabrication, assembly, and actuation based on microorganisms are consolidated. Detailed development and recent advances of micro/nanoparticle fabrication, their ordered assembly, and controlled actuation properties, as well as certain typical engineering application examples, are mainly involved. The developing perspectives and challenges of microorganism‐based micro/nanofabrication are also discussed, aiming to inspire the relevant researches and promote the development in this field.

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Current view of iron biomineralization in magnetotactic bacteria

Cited by 10 publications

References 29 publications

Biosensors and Drug Delivery in Oncotheranostics Using Inorganic Synthetic and Biogenic Magnetic Nanoparticles

Biosensors and Drug Delivery in Oncotheranostics Using Inorganic Synthetic and Biogenic Magnetic Nanoparticles

Identification of sulfate‐reducing magnetotactic bacteria via a group‐specific 16S rDNA primer and correlative fluorescence and electron microscopy: Strategy for culture‐independent study

Micro/Nanofabrication, Assembly, and Actuation Based on Microorganisms: Recent Advances and Perspectives

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