Metal resistance and accumulation in bacteria

Belliveau, B. H.; Starodub, M.E.; Cotter, C.; Trevors, J. T.

doi:10.1016/0734-9750(87)90006-1

Cited by 42 publications

(9 citation statements)

References 100 publications

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“…However, in order to play a role in detoxification, as suggested by several authors, these bacteria may have the ability to concentrate metals. Such ability has been previously noted for aquatic and marine bacteria (see Belliveau et al 1987 for review), e.g. the concentration of chromium by epiphytic bacteria of the crab Helice crassa (Johnson et al 1981).…”

Section: Discussionmentioning

confidence: 90%

Metabolic diversity in epibiotic microflora associated with the Pompeii wormsAlvinella pompejana andA. caudata (Polychaetae: Annelida) from deep-sea hydrothermal vents

et al. 1990

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Abstract. Specimens of alvinellid polychaetes (Alvinella pompejana Desbruy6res andLaubier, 1980 and A. caudata Desbruy6res andLaubier, 1986) and their tubes were sampled from deep-sea hydrothermal vents at 13°N from the manned submersible "Nautile" during the "Hydronaut" cruise (October to November 1987) on the East Pacific Rise. Samples were subjected to bacterial analysis aboard the mother ship "Nadir" to detect bacteria involved in the nitrogen and sulphur cycles, in non-specific heterotrophic processes, and displaying resistance to selected heavy metals. Cultures were incubated at different temperatures under atmospheric and "in situ" (250 atm) pressures. Bacterial growth was observed in enrichment cultures for most metabolic types screened. Heavy-metalresistant bacteria were also detected in many samples. No filamentous bacterial form was observed in the cultures. The results demonstrate a high metabolic diversity in episymbiotic flora, indicating that the worm (A. pompejana or A. caudata), its tube and its epiflora represent a complex micro-ecosystem.

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Section: Discussionmentioning

confidence: 90%

Metabolic diversity in epibiotic microflora associated with the Pompeii wormsAlvinella pompejana andA. caudata (Polychaetae: Annelida) from deep-sea hydrothermal vents

et al. 1990

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“…Studies have shown that both unicellular and multicellular organisms achieve both extracellular and intracellular synthesis of inorganic micron and nano-sized materials as presented in Table 1, and in the case of nanoparticle synthesis, culturing microorganisms in particular environments can also assist them in promoting coupled oxidation and reduction phenomenon [104,107]. The specific oxidation-reduction mechanisms, nucleation, and subsequent nanoparticle growth kinetics and the interaction of these processes with the microorganism metabolic processes have yet to be fully explained [108,109,110,111]. Hence, there is still a considerable level of research that needs to be undertaken to fully investigate and elucidate differences in nanoparticle size and morphology between different metals when synthesized using the same microorganism [65,105].…”

Section: Biological Synthesis Of Nanoparticlesmentioning

confidence: 99%

Green Synthesis of Metallic Nanoparticles via Biological Entities

et al. 2015

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Nanotechnology is the creation, manipulation and use of materials at the nanometre size scale (1 to 100 nm). At this size scale there are significant differences in many material properties that are normally not seen in the same materials at larger scales. Although nanoscale materials can be produced using a variety of traditional physical and chemical processes, it is now possible to biologically synthesize materials via environment-friendly green chemistry based techniques. In recent years, the convergence between nanotechnology and biology has created the new field of nanobiotechnology that incorporates the use of biological entities such as actinomycetes algae, bacteria, fungi, viruses, yeasts, and plants in a number of biochemical and biophysical processes. The biological synthesis via nanobiotechnology processes have a significant potential to boost nanoparticles production without the use of harsh, toxic, and expensive chemicals commonly used in conventional physical and chemical processes. The aim of this review is to provide an overview of recent trends in synthesizing nanoparticles via biological entities and their potential applications.

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“…Together with these processes, a number of studies have shown that microorganisms participate in the fixation of iodine in the environment (5,7,8,20,23,26,30,31). Considering the fact that several species of bacteria possess the abilities to accumulate certain elements (6,22), it would not be surprising if they directly take up iodine and play significant roles in the fixation of iodine. In the present study, we found that certain marine bacteria actually possess capacities for accumulating iodide and that the uptake of iodide is a saturable process which requires an exogenous source of energy.…”

Section: Discussionmentioning

confidence: 99%

Active Transport and Accumulation of Iodide by Newly Isolated Marine Bacteria

Amachi

Mishima

Shinoyama

et al. 2005

Appl Environ Microbiol

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Iodide (I؊ )-accumulating bacteria were isolated from marine sediment by an autoradiographic method with radioactive 125 I ؊ . When they were grown in a liquid medium containing 0.1 M iodide, 79 to 89% of the iodide was removed from the medium, and a corresponding amount of iodide was detected in the cells. Phylogenetic analysis based on 16S rRNA gene sequences indicated that iodide-accumulating bacteria were closely related to Flexibacter aggregans NBRC15975 and Arenibacter troitsensis, members of the family Flavobacteriaceae. When one of the strains, strain C-21, was cultured with 0.1 M iodide, the maximum iodide content and the maximum concentration factor for iodide were 220 ؎ 3.6 (mean ؎ standard deviation) pmol of iodide per mg of dry cells and 5.5 ؋ 10 3 , respectively. In the presence of much higher concentrations of iodide (1 M to 1 mM), increased iodide content but decreased concentration factor for iodide were observed. An iodide transport assay was carried out to monitor the uptake and accumulation of iodide in washed cell suspensions of iodide-accumulating bacteria. The uptake of iodide was observed only in the presence of glucose and showed substrate saturation kinetics, with an apparent affinity constant for transport and a maximum velocity of 0.073 M and 0.55 pmol min ؊1 mg of dry cells ؊1 , respectively. The other dominant species of iodine in terrestrial and marine environments, iodate (IO 3 ؊ ), was not transported.

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Metal resistance and accumulation in bacteria

Cited by 42 publications

References 100 publications

Metabolic diversity in epibiotic microflora associated with the Pompeii wormsAlvinella pompejana andA. caudata (Polychaetae: Annelida) from deep-sea hydrothermal vents

Metabolic diversity in epibiotic microflora associated with the Pompeii wormsAlvinella pompejana andA. caudata (Polychaetae: Annelida) from deep-sea hydrothermal vents

Green Synthesis of Metallic Nanoparticles via Biological Entities

Active Transport and Accumulation of Iodide by Newly Isolated Marine Bacteria

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