Navigation Links
Mechanisms involved in resistance to the bacteria Salmonella studied in a Ph.D. thesis
Date:2/6/2013

This press release is available in Spanish.

In their natural environment bacteria develop by forming communities of micro-organisms called biofilms that afford them greater resistance. These biofilms on farms and premises where food is processed lead to considerable economic losses besides being a potential source of contamination and transmission of the pathogen. In her PhD thesis,Violeta Zorraquino-Salvo has studied a specific protein type that activates the formation of biofilm in Salmonella and regulates bacterial motility. "Having a better idea of the mechanisms involved in these processes will help to design new, more effective strategies for preventing the formation of biofilm and its potential harm in the clinical, food and industrial ambit," points out the researcher.

Two decades ago it was discovered that a small molecule (the so-called c-di-GMP) could on its own hamper motility and activate the formation of biofilm. "This molecule is part of a signal transduction system: there are different sensory membranes on the membrane of the bacteria that pick up stimuli from the outside and transduce them into different intracellular levels of c-di-GMP, thus regulating different biological processes like biofilm formation. "In the first part of her thesis Zorraquino removed all the sensory proteins from the Salmonella's genome."We created a mutant Salmonella incapable of picking up stimuli from the medium in which it lives and therefore of producing biofilm under any circumstances. "After that, each sensory protein was inserted one by one to be able to analyse, under different ambient conditions, how each one contributed to the formation of biofilm. "We showed that under each condition tested, only some proteins are active, so each one is most likely responsible for the formation of biofilm whena given condition is present."<
'/>"/>

Contact: Oihane Lakar Iraizoz
o.lakar@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert

Page: 1 2

Related biology news :

1. FASEB SRC announces: Molecular Mechanisms & Physiological Consequences of Protein Aggregation
2. FASEB SRC announces conference registration open for: Neural Mechanisms in Cardiovascular Regulation
3. FASEB SRC announces conference registration open for: Mechanisms in Plant Development Conference
4. X-rays reveal the self-defence mechanisms of bacteria
5. Mechanisms for a beneficial effect of moderate alcohol consumption on osteoporosis in women
6. Researchers identify mechanisms that allow embryonic stem cells to become any cell in the human body
7. Force of nature: Defining the mechanical mechanisms in living cells
8. Symposium: Protein-Folding Diseases: Models & Mechanisms
9. Discovery of mechanisms predicting response to new treatments in colon cancer
10. UF receives $1 million from Keck Foundation to study mechanisms of inherited disease
11. New insight into mechanisms behind autoimmune diseases suggests a potential therapy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2014)... such as mussels and barnacles secrete very sticky proteins ... even underwater. Inspired by these natural adhesives, a team ... be used to repair ships or help heal wounds ... adhesives, the MIT researchers engineered bacteria to produce a ... well as a bacterial protein found in biofilms ...
(Date:9/19/2014)... new resource unveiled today by researchers from several ... Dublin provides both experienced and aspiring researchers with ... and operate robots made from soft, flexible materials. ... laser cutters, and other advances in manufacturing technology, ... field. Using principles drawn from conventional rigid robot ...
(Date:9/19/2014)... the sake of fairness per se but in order ... Frans de Waal, PhD, and Sarah Brosnan, PhD, co-authors ... is defined as a negative reaction to unequal outcomes. ... , Their conclusion comes after the co-authors reviewed more ... it is the evolution of forestalling partner dissatisfaction with ...
Breaking Biology News(10 mins):Engineered proteins stick like glue -- even in water 2Engineered proteins stick like glue -- even in water 3Soft robotics 'toolkit' features everything a robot-maker needs 2Evolution of responses to (un)fairness 2Evolution of responses to (un)fairness 3
... unknown movements of a set of specialized cells, Whitehead ... immune system mounts a successful defense against hostile, ever-changing ... the activity inside structures known as germinal centers (GCs), ... of a foreign virus or bacteria. Within the GCs, ...
... In a study published in Cell Research , ... the genome sequencing and analysis of the endangered Chinese ... published crocodilian genome, providing a good explanation of how ... determination (TSD). The Chinese alligator is a ...
... The Netherlands , August 9, 2013 ... employment market, recruiters and HR specialists need to increase ... Microsoft Dynamics and WCC ELISE for organisations keen to ... Today,s recruiters must grapple with ever-increasing amounts ...
Cached Biology News:Helper cells aptly named in battle with invading pathogens 2Whole-genome sequencing uncovers the mysteries of the endangered Chinese alligator 2Most Efficient Matching in Recruitment With CRMATCH and ELISE 2
(Date:9/18/2014)... BELLINGHAM, Washington, USA (PRWEB) September 18, 2014 ... of Representatives of a bill designed to stimulate development ... high-value jobs is being praised by leaders of ... The bill, the Revitalizing American Manufacturing and Innovation (RAMI) ... vote. The bill’s authors have said they are optimistic ...
(Date:9/18/2014)... 2014 /PRNewswire-iReach/ -- DeepResearchReports.com adds "2014 Deep Research ... and "2014 Deep Research Report on Global and ... database. Photo - http://photos.prnewswire.com/prnh/20140918/147058 ... Global and China Acetic Acid Industry" is a ... China and Global Acetic Acid Market. ...
(Date:9/18/2014)... Ireland , September 18, 2014 ... and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has ... "Biocompatible Materials - Global Strategic Business ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes ... in US$ Million by the following ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global and Chinese Stem Cell Industry Report, 2014-2017" ... cells are undifferentiated biological cells that can differentiate into ... more stem cells. Stem cell therapy can be applied ... hematological system disease), nervous system diseases, damage or lesion ...
Breaking Biology Technology:House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3
... 96 temperature,cyclers , Michelle Cayouette Jane ... ,Stratagene Cloning Systems, Inc. , With the introduction of ... 96 temperature cyclers, researchers can begin running oil-free,PCR ... is supplied,with a software upgrade card, which provides more ...
... , Novel method streamlines blood DNA purification for PCR applications , ... , , ... , Stratagene , , ... Using the new DNA Stat blood kit, it is easy , ...
... protein purification and native eukaryotic amino acid ... John Bauer ,Stratagene Cloning Systems, Inc. ... system features rapid and high-yield,production of recombinant ... (LIC) for efficient and directional cloning of ...
Cached Biology Technology:Oil-Free PCR Using the Hot Top Assembly 2Oil-Free PCR Using the Hot Top Assembly 3Oil-Free PCR Using the Hot Top Assembly 4Oil-Free PCR Using the Hot Top Assembly 5Oil-Free PCR Using the Hot Top Assembly 6Oil-Free PCR Using the Hot Top Assembly 7Fast and Easy Isolation of PCR-Ready Genomic DNA from Whole Blood 2Fast and Easy Isolation of PCR-Ready Genomic DNA from Whole Blood 3Fast and Easy Isolation of PCR-Ready Genomic DNA from Whole Blood 4Fast and Easy Isolation of PCR-Ready Genomic DNA from Whole Blood 5New Yeast Cloning System for Producing Proteins with Native Amino Acid,Sequences 2New Yeast Cloning System for Producing Proteins with Native Amino Acid,Sequences 3New Yeast Cloning System for Producing Proteins with Native Amino Acid,Sequences 4New Yeast Cloning System for Producing Proteins with Native Amino Acid,Sequences 5
... The ProteoSpin Detergent Clean-up Micro Kit provides ... removal of SDS, Triton X-100 and other detergents ... spin-column chromatography using Norgens patented protein resin as ... processing 2 50 g of either acidic or ...
Compound(s) screened through any number of client selected assays. Client also selects number of concentrations and replicates....
... hematopoietic stem cells called monocytes. Osteoclasts resorb ... and lowering the surrounding pH to an ... mineral is then solubilized and the collagen ... primarily by Macrophage Colony-Stimulating Factor (M-CSF) and ...
Values of steady state parameters for enzyme activities are determined....
Biology Products: