Magnetosomes: biogenic iron nanoparticles produced by environmental bacteria

Dieudonné, Anissa; Pignol, David; Prévéral, Sandra

doi:10.1007/s00253-019-09728-9

Cited by 45 publications

(35 citation statements)

References 135 publications

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Section: Magnetosomesmentioning

confidence: 99%

“…Bacterial magnetosomes are inclusions (20-60 nm) present in magnetotactic bacteria comprised of magnetic mineral crystals (iron oxide or iron sulfide nanoparticle) surrounded by a phospholipid double-layered membrane (Dieudonné et al, 2019). The magnetosome membrane is derived from the cytoplasmic membrane and can protect the iron crystal from oxidation (Dieudonné et al, 2019). Many magnetosome membrane proteins (e.g., MamB, MamM, MamH, and MamZ) are involved in magnetosome formation and dictate the iron uptake into the vesicle (Lohße et al, 2014;Uebe and Schüler, 2016;Dieudonné et al, 2019).…”

Section: Magnetosomesmentioning

confidence: 99%

“…The magnetosome membrane is derived from the cytoplasmic membrane and can protect the iron crystal from oxidation (Dieudonné et al, 2019). Many magnetosome membrane proteins (e.g., MamB, MamM, MamH, and MamZ) are involved in magnetosome formation and dictate the iron uptake into the vesicle (Lohße et al, 2014;Uebe and Schüler, 2016;Dieudonné et al, 2019). Meanwhile, the size and morphology of the magnetosomes are controlled by another set of magnetosome membrane proteins as, for example, MamC/Mms13, MamD, MamF, MamG, MamR, MamS, Mms6, and MmsF (Uebe and Schüler, 2016;Islam et al, 2018;Dieudonné et al, 2019).…”

Section: Magnetosomesmentioning

confidence: 99%

“…Many magnetosome membrane proteins (e.g., MamB, MamM, MamH, and MamZ) are involved in magnetosome formation and dictate the iron uptake into the vesicle (Lohße et al, 2014;Uebe and Schüler, 2016;Dieudonné et al, 2019). Meanwhile, the size and morphology of the magnetosomes are controlled by another set of magnetosome membrane proteins as, for example, MamC/Mms13, MamD, MamF, MamG, MamR, MamS, Mms6, and MmsF (Uebe and Schüler, 2016;Islam et al, 2018;Dieudonné et al, 2019). Interestingly, magnetosomes can be functionalized in vivo by fusing foreign proteins of interest to the magnetosome membrane proteins, such as MamC/Mms13, MagA, and Mms16 (Arakaki et al, 2008;Ren et al, 2018).…”

Section: Magnetosomesmentioning

confidence: 99%

See 3 more Smart Citations

Bioengineered Polyhydroxyalkanoates as Immobilized Enzyme Scaffolds for Industrial Applications

Wong

Ogura

Chen

et al. 2020

Front. Bioeng. Biotechnol.

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Enzymes function as biocatalysts and are extensively exploited in industrial applications. Immobilization of enzymes using support materials has been shown to improve enzyme properties, including stability and functionality in extreme conditions and recyclability in biocatalytic processing. This review focuses on the recent advances utilizing the design space of in vivo self-assembled polyhydroxyalkanoate (PHA) particles as biocatalyst immobilization scaffolds. Self-assembly of biologically active enzyme-coated PHA particles is a one-step in vivo production process, which avoids the costly and laborious in vitro chemical cross-linking of purified enzymes to separately produced support materials. The homogeneous orientation of enzymes densely coating PHA particles enhances the accessibility of catalytic sites, improving enzyme function. The PHA particle technology has been developed into a remarkable scaffolding platform for the design of cost-effective designer biocatalysts amenable toward robust industrial bioprocessing. In this review, the PHA particle technology will be compared to other biological supramolecular assembly-based technologies suitable for in vivo enzyme immobilization. Recent progress in the fabrication of biological particulate scaffolds using enzymes of industrial interest will be summarized. Additionally, we outline innovative approaches to overcome limitations of in vivo assembled PHA particles to enable finetuned immobilization of multiple enzymes to enhance performance in multi-step cascade reactions, such as those used in continuous flow bioprocessing.

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Section: Magnetosomesmentioning

confidence: 99%

Section: Magnetosomesmentioning

confidence: 99%

Section: Magnetosomesmentioning

confidence: 99%

Section: Magnetosomesmentioning

confidence: 99%

See 2 more Smart Citations

Bioengineered Polyhydroxyalkanoates as Immobilized Enzyme Scaffolds for Industrial Applications

Wong

Ogura

Chen

et al. 2020

Front. Bioeng. Biotechnol.

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“…Production of bacterial magnetosomes and their properties (size, shape, structure) depends on living conditions of microorganisms, biochemical, chemical and genetic regulation. The well described bacterium producing magnetosomes is Magnetospirillum magneticum (Lefevre and Bazylinski, 2013;Dieudonné et al, 2019).…”

Section: Magnetosomesmentioning

confidence: 99%

Microbial synthesis of unique nanoscale minerals- challenges and prospects

Maliszewska¹,

Kocek²,

Wanarska³

2020

Physicochem. Probl. Miner. Process.

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In this review, we highlight new insights and place the molecular mechanisms of the biogenesis of nanomaterials such as silicified frustules, coccoliths, magnetosomes and bacterial nanowires in the context of the complex biology of a microbial cell. The silicified frustules are formed by diatoms, which are a widespread group of organisms found in the oceans, fresh water, soil and wet surfaces. They are especially important in the oceans, where it is estimated that they contribute to 45% of total primary ocean production. Coccolith is a collective term that designates all of the biomineralized, calcified scales produced by extant and extinct haptophytes (single-celled algae). The orientation of magnetotactic bacteria is based on the presence of unique organelles, magnetosomes, which are intracellular, membrane-enclosed, nanometre-sized crystals of magnetic iron minerals. The discovery of bacterial conductive structures, called nanowires, has fascinated scientists for almost a decade. Nanowires enable bacteria to transfer electrons over micrometer distances to extracellular electron acceptors such as insoluble metal oxides or electrodes. The possible applications of these extremely interesting nanomaterials in different areas of life is also considered.

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Magnetotactic Bacteria‐Synthesized Nanoparticles and Their Applications

Gupta,

Hashmi

2024

Green Synthesis of Nanomaterials

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Magnetosomes: biogenic iron nanoparticles produced by environmental bacteria

Cited by 45 publications

References 135 publications

Bioengineered Polyhydroxyalkanoates as Immobilized Enzyme Scaffolds for Industrial Applications

Bioengineered Polyhydroxyalkanoates as Immobilized Enzyme Scaffolds for Industrial Applications

Microbial synthesis of unique nanoscale minerals- challenges and prospects

Magnetotactic Bacteria‐Synthesized Nanoparticles and Their Applications

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