Topics

Antibiofilm activity in the culture supernatant of a marine sp. bacterium.

07:00 EST 14th January 2020 | BioPortfolio

Summary of "Antibiofilm activity in the culture supernatant of a marine sp. bacterium."

In the marine environment, most solid surfaces are covered by microbial biofilms, mainly composed of bacteria and diatoms. The negative effects of biofilms on materials and equipment are numerous and pose a major problem for industry and human activities. Since marine micro-organisms are an important source of bioactive metabolites, it is possible that they synthesize natural ecofriendly molecules that inhibit the adhesion of organisms. In this work, the antibiofilm potential of marine bacteria was investigated using sp. II2003 as a target. This strain is potentially a pioneer strain of bacteria that was previously selected from marine biofilms for its strong biofilm-forming ability. The culture supernatants of 86 marine heterotrophic bacteria were tested for their ability to inhibit sp. II2003 biofilm formation and the sp. IV2006 strain was identified as producing a strong antibiofilm activity. The sp. IV2006 culture supernatant (SN) inhibited sp. II2003 adhesion without killing the bacteria or inhibiting its growth. Moreover, SN had no effect on the sp. II2003 cell surface hydrophilic/hydrophobic and general Lewis acid-base characteristics, but modified the surface properties of glass, making it on the whole more hydrophilic and more alkaline and significantly reducing bacterial cell adhesion. The glass-coating molecules produced by sp. IV2006 were found to probably be polysaccharides, whereas the antibiofilm molecules contained in SN and acting during the 2 h adhesion step on glass and polystyrene surfaces would be proteinaceous. Finally, SN exhibited a broad spectrum of antibiofilm activity on other marine bacteria such as species that are pathogenic for fish, and human pathogens in both the medical environment, such as and , and in the food industry, such as . Thus, a wide range of applications could be envisaged for the SN compounds, both in aquaculture and human health.

Affiliation

Journal Details

This article was published in the following journal.

Name: Microbiology (Reading, England)
ISSN: 1465-2080
Pages:

Links

DeepDyve research library

PubMed Articles [13550 Associated PubMed Articles listed on BioPortfolio]

Phallusialides A-E, Pyrrole-Derived Alkaloids Discovered from a Marine-Derived sp. Bacterium Using MS-Based Metabolomics Approaches.

Integrating MS-based metabolomics approaches, LC-MS-PCA and molecular networking enabled the targeted isolation of five new pyrrole-derived alkaloids, phallusialides A-E (-), from a marine-derived sp...

Protein-mediated degradation of aflatoxin B by Pseudomonas putida.

Degradation or the removal of aflatoxin B from agriculture commodities is very important because of its acute toxicity and economic loss due to rejection of about 25% contaminated agri produce. The pr...

Reduction of selenite to elemental Se(0) with simultaneous degradation of phenol by co-cultures of Phanerochaete chrysosporium and Delftia lacustris.

The simultaneous removal of phenol and selenite from synthetic wastewater was investigated by adopting two different co-culturing techniques using the fungus Phanerochaete chrysosporium and the bacter...

In vitro and in vivo anti-clostridial activity of newly isolated Pediococcus acidilactici SPM138 against Clostridium difficile.

Clostridium difficile infection (CDI) has become a growing health concern, as evident from the increase in the mortality rate among elderly or hospitalized patients. Treatment of CDI is usually based ...

Extracellular synthesis of gold nanoparticles using the marine bacterium Paracoccus haeundaensis BC74171 and evaluation of their antioxidant activity and antiproliferative effect on normal and cancer cell lines.

Green chemistry is beneficial for the production of eco-friendly and stable nanoparticles using biological agents. The present study was performed to explore the potential of the marine bacterium Para...

Clinical Trials [4213 Associated Clinical Trials listed on BioPortfolio]

A Clinical Double Blind, Randomized Study of the Efficacy of Hyperuricemia Treatment With Anserine Product.

Hyperuricemia is a common metabolic disorder.The Yaizu Suisankagaku Industry Company have developed industrial production named Marine Active, was able to offer anti-fatigue activity by an...

Propionibacterium Dermal Colonization: Implications for Total Hip Arthroplasty

This study is being done to investigate the colonization rate(growth rate) of a particular type of low-virulence (does not typically cause infection) bacterium called Propionibacterium, mo...

Culture System for Isolating Circulating Tumor cells_2

This culture system utilizes the special affinity difference of biomedical material coating for different cells to achieve the effect of isolating tumor cells from the blood sample. The co...

Marine Protein Hydrolysate as Dietary Supplement in Elderly Part I

The aim of this study is to investigate the potential effect of a marine protein hydrolysate (MPH) supplement before a meal on postprandial glucose tolerance in healthy subjects, to achiev...

Mitochondrial DNA in Fresh Versus Frozen Embryo Culture Media of PCOS Women Undergoing In Vitro Fertilization

Ninety women with PCOS candidate for ICSI were randomized to 2 groups:Group A: fresh samples of PCOS patients undergoing IVF (no= 45) and Group B: frozen samples of PCOS patients undergoin...

Medical and Biotech [MESH] Definitions

A blood protein (NSILA) which mimics the biological activity of insulin in serum, but is not suppressed by insulin antibodies. During acid-ethanol extraction of Cohn fraction III, 10% of the activity is found in the supernatant (NSILA-S) and the remaining activity in the precipitate (NSILA-P). The latter is a large molecular compound, much less stable than the soluble fraction. NSILA-S is a more potent growth factor than insulin and exhibits sulfation activity.

The phenomenon by which a temperate phage incorporates itself into the DNA of a bacterial host, establishing a kind of symbiotic relation between PROPHAGE and bacterium which results in the perpetuation of the prophage in all the descendants of the bacterium. Upon induction (VIRUS ACTIVATION) by various agents, such as ultraviolet radiation, the phage is released, which then becomes virulent and lyses the bacterium.

A rod-shaped bacterium surrounded by a sheath-like structure which protrudes balloon-like beyond the ends of the cell. It is thermophilic, with growth occurring at temperatures as high as 90 degrees C. It is isolated from geothermally heated marine sediments or hot springs. (From Bergey's Manual of Determinative Bacteriology, 9th ed)

Culture of an isolated organism free from any other associating or contaminating organisms.

The transfer of bacterial DNA by phages from an infected bacterium to another bacterium. This also refers to the transfer of genes into eukaryotic cells by viruses. This naturally occurring process is routinely employed as a GENE TRANSFER TECHNIQUE.

Quick Search


DeepDyve research library

Relevant Topic

Food
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...


Searches Linking to this Article