Possible use of Serratia marcescens in toxic metal biosorption (removal)

Cristani, Mariateresa; Naccari, Clara; Nostro, Antonia; Pizzimenti, Alessia; Trombetta, Domenico; Pizzimenti, Francesco

doi:10.1007/s11356-011-0539-8

Cited by 55 publications

(24 citation statements)

References 37 publications

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“…Diverse bacterial communities likely reflect the resilience of bacterial communities to environmental stresses with more active biochemical processes [68]. Studying the bacterial diversity will help to develop not only the bioindicator standard using the sensitive species to evaluate the environmental status but also the bioremediation strategy using the native community to overcome the pollution in the area [44]. Therefore, efforts on studying bacterial diversity also should be made to protect the mariculture sustainable development, and contaminants by mariculture should be reduced to the level under the tolerance of bacterial resilience to prevent collapse of entire ecosystem.…”

Section: Discussionmentioning

confidence: 99%

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Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

et al. 2013

Microb Ecol

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Mariculture is one of the major seafood supplies worldwide and has caused serious environmental concerns on the coastal zone. Its rapid development has been shown to disrupt the sediment ecosystems and thus influence the benthic bacterial communities. Bacterial diversity and community structure within both adjacent farms and non-cultured zones intertidal sediments along the coasts of Qinhuangdao and Dalian, China, were investigated using full-length 16S rRNA gene-based T-RFLP analyses and clone library construction. Richness and Shannon-Wiener index were significantly increased at sites adjacent the mariculture farm with mean values of 29 and 2.97 from peak profiles of T-RFLP result. Clustering analyses suggested that impacts of mariculture on bacterial diversity of sediment were significantly larger than those resulted from temporal and spatial scales. Upon comparisons of RFLP patterns from 602 clones from libraries of the selected five samples, 137 OTUs were retrieved. Members of γ-and δ-Proteobacteria, Bacilli, Flavobacteria, and Actinobacteria were recorded in all libraries. In addition, γ-Proteobacteria were dominant in all samples (21.7~45.0 %). Redundancy analysis revealed that the distribution of bacterial composition seemed to be determined by the variables of salinity, PO 4 3− -P, NH 4 + -N, and Chlorophyll a content. The phyla of γ-Proteobacteria, Clostridia, Flavobacteria, Bacilli, and Planctomycetes were principal components to contribute to the bacterial differences of clone libraries. Our finding demonstrated that these phyla could display variations of bacterial composition linked to environmental disturbance resulted from mariculture.

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Section: Discussionmentioning

confidence: 99%

“…Environmental parameter classification was performed via hierarchical clustering using Euclidean distance and Ward linkage with the R language after z-score normalization of the environmental data [22,44].…”

Section: Statistical Analysesmentioning

confidence: 99%

Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

et al. 2013

Microb Ecol

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“…Another bacterium proposed as a bioindicator is Vogesella indigofera; under normal conditions this bacterium develops a blue color due to the indigoidine production; when it grows in the presence of Cr6, the bacteria decreases the pigment production, and this decrease is dependent on the concentration of Cr 6 ;at 150 μg/ml the bacteria are entirely white and rough [146]. Serratia marcescens is a Gram-negative bacterium that produces a red pigment known as prodigiosin; when the bacterium grows in sub-inhibitory concentrations of Cd, Cr, and Pb, the pigment production decreases drastically, so the authors propose it as a bioindicator of heavy metal contamination [147].…”

Section: The Use Of Bacteria As Biosensors Of Heavy Metal Pollution 4mentioning

confidence: 99%

The Use of Biosensors for Biomonitoring Environmental Metal Pollution

Tovar-Sánchez¹,

Suárez-Rodríguez²,

Ramírez-Trujillo³

et al. 2019

Biosensors for Environmental Monitoring

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The use of biosensors for biomonitoring environmental health has gained much attention in the last decades. The environment is continuously loaded with xenobiotics released by anthropogenic activities that pollute ecosystems, putting their integrity at risk. Therefore, there is an urgent need to study the negative effects of xenobiotics, specifically chemical agents. Biosensors or organisms that integrate exposure to pollutants in their environment and which respond in some measurable and predictable way are useful tools to study the extent of chemical pollution and its consequences across levels of biological organization. Among chemical pollutants, heavy metals are among the most toxic elements to nearly all living organisms. Wildlife is chronically exposed to complex metal mixtures in which effects on ecosystem health are difficult to assess. Therefore, different organisms may serve as biosensors to estimate detrimental effects of metal pollution. In this chapter, we will analyze bacteria, small mammals, some plant species, and lichens as biosensors for environmental metal pollution. Also, we will assess the importance of using different biomarkers on biosensors.

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“…Sources of Cd include metallurgy, mining, fossil fuel combustion, the manufacture and disposal of rechargeable nickel-cadmium batteries, and the utilization of pesticides and fertilizers. [5][6][7] Some microorganisms can tolerate heavy metals by using strategies such as exclusion by permeability barriers, intra-and extra-cellular sequestration, resistance to oxidative stress, extracellular biosorption, active transport efflux pumps, enzymatic detoxication, and a reduction in the sensitivity of cellular targets to metal ions. 3 It is easily absorbed and accumulated by lower organisms and subsequently transferred to higher trophic levels in food chains.…”

Section: Introductionmentioning

confidence: 99%

Multi-omics based changes in response to cadmium toxicity in Bacillus licheniformis A

et al. 2015

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Cadmium (Cd), a widespread substance with high toxicity and persistence, is known to cause a broad range of adverse effects in all living organisms. However, many microorganisms have special detoxification mechanisms for Cd. In this study, we investigated the response to Cd in Bacillus licheniformis A at the omics level. Proteomic biomarkers were identified, including peroxiredoxin, nucleoside diphosphate kinase, trigger factor, and elongation factor Tu. These proteins suggested that Cd could induce oxidative stress, disturbance in energy metabolism, and protein synthesis in B. licheniformis A. Furthermore, metabolites (glutamate, glycine, and S-adenosylhomocysteine) involved in the glutathione synthesis pathway were also affected. In addition, some metabolic biomarkers were validated by relating to respective proteins, including 50S ribosomal protein L7/L12, trigger factor, peroxiredoxin and superoxide dismutase in B. licheniformis A. This study provides new insights into the utilization of an omics approach in bacteria to assess the effects of Cd pollution in the environment.

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Possible use of Serratia marcescens in toxic metal biosorption (removal)

Cited by 55 publications

References 37 publications

Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

The Use of Biosensors for Biomonitoring Environmental Metal Pollution

Multi-omics based changes in response to cadmium toxicity in Bacillus licheniformis A

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