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Intracellular biomineralization in bacteria

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889192724 Year: Pages: 135 DOI: 10.3389/978-2-88919-272-4 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Oceanography --- Science (General)
Added to DOAB on : 2015-12-03 13:02:24
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Bacteria can sequester metals and other ions intracellularly in various forms ranging from poorly ordered deposits to well- ordered mineral crystals. Magnetotactic bacteria provide one example of such intracellular deposits. They synthesize intracellular magnetic minerals of magnetite (Fe3O4) and/or greigite (Fe3S4) magnetosomes which are generally less than 150 nm and organized into one or multiple chain structures. The magnetosome chain(s) act like a compass needle to facilitate the navigation of magnetotactic bacteria by using the Earth's magnetic field. Due to their ubiquitous distribution in aquatic and sedimentary environments, magnetotactic bacteria play important roles in global iron cycling. Other intracellular mineral phases have been evidenced in bacteria such as As2S3, CaCO3, CdS, Se(0) or various metal phosphates which may play as well a significant role in the geochemical cycle of these elements. However, in contrast to magnetotactic bacteria, the biological and environmental function of these particles remains a matter of debate. In recent years, such intracellularly biomineralizaing bacteria have become an attractive model system for investigating the molecular mechanisms of organelle-like structure formation in prokaryotic cells. The geological significance of intracellular biomineralization is important; spectacular examples are fossil magnetosomes that may significantly contribute to the bulk magnetization of sediments and act as potential archives of paleoenvironmental changes. In addition, intracellular mineral deposits formed by bacteria have potentially versatile applications in biotechnological and biomedical fields. After more than four decades of research, the knowledge on intracellularly biomineralizing bacteria has greatly improved. The aim of this Research Topic is to highlight recent advances in our understanding of intracellular biomineralization by bacteria. Magnetotactic bacteria are a system of choice for that topic but other intracellularly biomineralizing bacteria may bring a unique perspective on that process. Research papers, reviews, perspectives, and opinion papers on (i) the diversity and ecology of intracellularly biomineralizing bacteria, (ii) the molecular mechanisms of intracellular biomineralization, (iii) the chemo- and magneto-taxis behaviors of magnetotactic bacteria, (iv) the involvement of intracellularly biomineralizing bacteria in local or global biogeochemical cycling, (v) the paleoenvironmental reconstructions and paleomagnetic signals based on fossil magnetosomes, (vi) and the applications of intracellular minerals in biomaterial and biotechnology were welcomed.

Biological and Biogenic Crystallization

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ISBN: 9783038975212 Year: Pages: 106 DOI: 10.3390/books978-3-03897-522-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-03-08 11:42:05
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The intention of the Special Issue ""Biological and Biogenic Crystallization"" was to create an international platform aimed at covering a broad field of results involving the crystallization of biological molecules, including virus and protein crystallization, biogenic crystallization including physiological and pathological crystallization taking place in living organisms (human beings, animals, plants, bacteria, etc.), and bio-inspired crystallization. Despite many years of research on biological and biogenic crystals, there are still open questions as well as hot and timely topics. This Special Issue contains seven articles that present a cross-section of the current research activities in the of field of biological and biogenic crystals. The authors of the presented articles prove the vibrant and topical nature of this field. We hope that this Special Issue will serve as a source of inspiration for future investigations, and will be useful for scientists and researchers who work on the exploration of biological and biogenic crystals.

Advances and New Perspectives in Marine Biotechnology

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ISBN: 9783038421061 9783038421092 Year: Volume: Volume 1 Pages: 428 DOI: 10.3390/books978-3-03842-109-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biotechnology
Added to DOAB on : 2015-10-22 10:01:02
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As the Century of Biology begins to bear fruit, through the translation of predictive biological understanding into applications that enhance the human condition and maintain biodiversity, the almost infinite potential of marine biological resources will be unlocked. Although Marine Biotechnology already has delivered products for medicine, food, bioenergy, nanomaterials, and bioremediation, less than 5% of our vast oceanic environment has been explored. Marine Biotechnology is a scientifically and economically expanding enterprise that is poised to harness the enormous but uncharted functional diversity of marine life, with its novel and rich array of biodesigns and biosynthetic capabilities. From this pursuit comes new genes, chemicals, materials, and inspirations for the benefit of industry, nutrition, and medicine, and which enable the sustainable use and management of the world’s oceans. This Special Issue in Marine Drugs highlights the cutting-edge developments in Marine Biotechnology with a collection of papers written by authors who are leading experts in the field, including selected papers from the 10th International Marine Biotechnology Conference (IMBC-2013), the premier meeting in marine biotechnology, which is held under the auspices of the International Marine Biotechnology Association.

Advances and New Perspectives in Marine Biotechnology

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ISBN: 9783038421078 9783038421108 Year: Volume: Volume 2 Pages: 654 DOI: 10.3390/books978-3-03842-110-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biotechnology
Added to DOAB on : 2015-10-22 10:04:44
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As the Century of Biology begins to bear fruit, through the translation of predictive biological understanding into applications that enhance the human condition and maintain biodiversity, the almost infinite potential of marine biological resources will be unlocked. Although Marine Biotechnology already has delivered products for medicine, food, bioenergy, nanomaterials, and bioremediation, less than 5% of our vast oceanic environment has been explored. Marine Biotechnology is a scientifically and economically expanding enterprise that is poised to harness the enormous but uncharted functional diversity of marine life, with its novel and rich array of biodesigns and biosynthetic capabilities. From this pursuit comes new genes, chemicals, materials, and inspirations for the benefit of industry, nutrition, and medicine, and which enable the sustainable use and management of the world’s oceans. This Special Issue in Marine Drugs highlights the cutting-edge developments in Marine Biotechnology with a collection of papers written by authors who are leading experts in the field, including selected papers from the 10th International Marine Biotechnology Conference (IMBC-2013), the premier meeting in marine biotechnology, which is held under the auspices of the International Marine Biotechnology Association.

Carbonates

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ISBN: 9783038977223 Year: Pages: 146 DOI: 10.3390/books978-3-03897-723-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Science (General)
Added to DOAB on : 2019-04-05 10:34:31
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This Special Issue is aimed at presenting the state of the art of the multidisciplinary science concerning all aspects of volcanic plumes, of relevance to the volcanology, climatology, atmospheric science, and remote sensing communities.

Biological Crystallization

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ISBN: 9783039214037 / 9783039214044 Year: Pages: 184 DOI: 10.3390/books978-3-03921-404-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-12-09 11:49:15
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For at least six hundred million years, life has been a fascinating laboratory of crystallization, referred to as biomineralization. During this huge lapse of time, many organisms from diverse phyla have developed the capability to precipitate various types of minerals, exploring distinctive pathways for building sophisticated structural architectures for different purposes. The Darwinian exploration was performed by trial and error, but the success in terms of complexity and efficiency is evident. Understanding the strategies that those organisms employ for regulating the nucleation, growth, and assembly of nanocrystals to build these sophisticated devices is an intellectual challenge and a source of inspiration in fields as diverse as materials science, nanotechnology, and biomedicine. However, “Biological Crystallization” is a broader topic that includes biomineralization, but also the laboratory crystallization of biological compounds such as macromolecules, carbohydrates, or lipids, and the synthesis and fabrication of biomimetic materials by different routes. This Special Issue collects 15 contributions ranging from biological and biomimetic crystallization of calcium carbonate, calcium phosphate, and silica-carbonate self-assembled materials to the crystallization of biological macromolecules. Special attention has been paid to the fundamental phenomena of crystallization (nucleation and growth), and the applications of the crystals in biomedicine, environment, and materials science.

Keywords

polymyxin resistance --- colistin resistance --- MCR-1 --- protein crystal nucleation --- thermodynamic and energetic approach --- protein ‘affinity’ to water --- solubility --- balance between crystal bond energy and destructive surface energies --- supersaturation dependence of the crystal nucleus size --- ependymin (EPN) --- ependymin-related protein (EPDR) --- mammalian ependymin-related protein (MERP) --- Campylobacter consisus --- Crohn’s disease --- circular dichroism --- protein crystallization --- Csep1p --- protein crystallization --- biochemical aspects of the protein crystal nucleation --- classical and two-step crystal nucleation mechanisms --- bond selection during protein crystallization --- equilibration between crystal bond and destructive energies --- protein crystal nucleation in pores --- crystallization in solution flow --- crystallization --- microseed matrix screening --- seeding --- optimization --- human carbonic anhydrase IX --- neutron protein crystallography --- microbially induced calcite precipitation (MICP) --- heavy metals --- wastewater treatment --- bioprecipitation --- calcium carbonate --- drug discovery --- education --- crystallization --- crystallography --- nucleation --- micro-crystals --- agarose --- ferritin --- lysozyme --- proteinase k --- insulin --- calcium carbonate --- {00.1} calcite --- lithium ions --- ultrasonic irradiation --- vaterite transformation --- adsorption --- calcein --- crystal violet --- dyes --- diffusion --- H3O+ --- reductants --- color change --- gradients --- biomorphs --- barium carbonate --- silica --- PCDA --- pyrrole --- droplet array --- crystal growth --- calcium carbonate --- high-throughput --- biomimetic crystallization --- biomineralization --- polyacrylic acid --- Cry protein crystals --- metallothioneins --- bioremediation --- heavy metal contamination --- nanoapatites --- graphene --- crystallization --- nanocomposites --- lysozyme --- L-tryptophan --- N-acetyl-D-glucosamine --- chitosan --- MTT assay --- GTL-16 cells --- Haloalkane dehalogenase --- halide-binding site --- random microseeding --- biomineralization --- biomimetic materials --- biomorphs --- calcium carbonate --- nanoapatites --- nucleation --- growth --- crystallization of macromolecules --- bioremediation --- materials science --- biomedicine

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