Flagella and Swimming Behavior of Marine Magnetotactic Bacteria

Zhang, Weijia; Wu, Long-Fei

doi:10.3390/biom10030460

Cited by 16 publications

(15 citation statements)

References 75 publications

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“…The chemotactic phenomenon changes with changing the microenvironment of the ocean [99,100]. Interestingly, the magnetotactic bacteria, Magnetospirillum magneticum (align and swim along the geomagnetic field), present in the marine environment, have a similar pathway like chemotactic bacteria [101]. To understand the effect of the marine environmental niche on bacterial motility, it is important to understand the interaction between bacteria and other organisms [102,103].…”

Section: Influence Of Chemotaxis On Marine Microenvironmentsmentioning

confidence: 99%

State of the art of bacterial chemotaxis

Karmakar

2021

J Basic Microbiol

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Bacterial chemotaxis is a biased movement of bacteria toward the beneficial chemical gradient or away from a toxic chemical gradient. This movement is achieved by sensing a chemical gradient by chemoreceptors. In most of the chemotaxis studies, Escherichia coli has been used as a model organism. E. coli have about 4-6 flagella on their surfaces, and the motility is achieved by rotating the flagella. Each flagellum has reversible flagellar motors at its base, which rotate the flagella in counterclockwise and clockwise directions to achieve "run" and "tumble." The chemotaxis of bacteria is regulated by a network of interacting proteins. The sensory signal is processed and transmitted to the flagellar motor by cytoplasmic proteins. Bacterial chemotaxis plays an important role in many biological processes such as biofilm formation, quorum sensing, bacterial pathogenesis, and host infection. Bacterial chemotaxis can be applied for bioremediation, horizontal gene transfer, drug delivery, or maybe some other industry in near future. This review contains an overview of bacterial chemotaxis, recent findings of the physiological importance of bacterial chemotaxis in other biological processes, and the application of bacterial chemotaxis. K E Y W O R D S bacterial chemotaxis, chemotactic pathways, Escherichia coli, flagella, physiological importance and applications of bacterial chemotaxis How to cite this article: Karmakar R. State of the art of bacterial chemotaxis.

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Section: Influence Of Chemotaxis On Marine Microenvironmentsmentioning

confidence: 99%

State of the art of bacterial chemotaxis

Karmakar

2021

J Basic Microbiol

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“…All review articles provide both expert and non-expert readers with advances in understanding the structures and functions of the bacterial flagellum. They highlight the most recent observations and illustrate perspectives for future research [4][5][6][7][8][9][10][11][12][13].…”

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confidence: 85%

“…The scope of this Special Issue is to cover recent advances in our understanding of the structures and functions of the bacterial flagellar motor derived from different bacterial species. This Special Issue includes ten review articles [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ] and eleven original research papers [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ] from well-known experts in the field.…”

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confidence: 99%

Recent Advances in the Bacterial Flagellar Motor Study

Minamino

Namba

2021

Biomolecules

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“…Magnetotactic bacteria have, for example, evolved magnetosomes to perceive and orient along the Earth’s magnetic field [ 408 ] and lead to complex collective phenomena of some bacteria subjected to a magnetic field [ 409 , 410 ]. These organelles consist of magnetite (Fe 3 O 4 ) wrapped in cell membranes organised along the motor axis by cytoskeleton proteins [ 411 , 412 ].…”

Section: Cell Signalling and Sensory Motricitymentioning

confidence: 99%

Towards the Idea of Molecular Brains

Timsit

Sergeant-Perthuis

2021

IJMS

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How can single cells without nervous systems perform complex behaviours such as habituation, associative learning and decision making, which are considered the hallmark of animals with a brain? Are there molecular systems that underlie cognitive properties equivalent to those of the brain? This review follows the development of the idea of molecular brains from Darwin’s “root brain hypothesis”, through bacterial chemotaxis, to the recent discovery of neuron-like r-protein networks in the ribosome. By combining a structural biology view with a Bayesian brain approach, this review explores the evolutionary labyrinth of information processing systems across scales. Ribosomal protein networks open a window into what were probably the earliest signalling systems to emerge before the radiation of the three kingdoms. While ribosomal networks are characterised by long-lasting interactions between their protein nodes, cell signalling networks are essentially based on transient interactions. As a corollary, while signals propagated in persistent networks may be ephemeral, networks whose interactions are transient constrain signals diffusing into the cytoplasm to be durable in time, such as post-translational modifications of proteins or second messenger synthesis. The duration and nature of the signals, in turn, implies different mechanisms for the integration of multiple signals and decision making. Evolution then reinvented networks with persistent interactions with the development of nervous systems in metazoans. Ribosomal protein networks and simple nervous systems display architectural and functional analogies whose comparison could suggest scale invariance in information processing. At the molecular level, the significant complexification of eukaryotic ribosomal protein networks is associated with a burst in the acquisition of new conserved aromatic amino acids. Knowing that aromatic residues play a critical role in allosteric receptors and channels, this observation suggests a general role of π systems and their interactions with charged amino acids in multiple signal integration and information processing. We think that these findings may provide the molecular basis for designing future computers with organic processors.

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Flagella and Swimming Behavior of Marine Magnetotactic Bacteria

Cited by 16 publications

References 75 publications

State of the art of bacterial chemotaxis

State of the art of bacterial chemotaxis

Recent Advances in the Bacterial Flagellar Motor Study

Towards the Idea of Molecular Brains

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