Navigation Links
Advances in the characterisation of the oyster mushroom genes

The oyster mushroom (Pleurotus ostreatus), apart from reducing cholesterol and having anticancerogenic properties, is characterised for its capacity for breaking down cellulose. Finding out which genes are responsible for this activity ?the reason why the fungus is sometimes used as a decontaminating agent, was the aim of the PhD thesis by Arantza Eizmendi Goikoetxea, which she defended at the Public University of Navarre with the title, Molecular Characterisation of a family of genes of cellobiohydrolases in the "Pleurotus ostreatus" fungus.

Degradation of cellulose

In nature, the oyster mushroom grows on dead trunks of trees where the lignin and cellulose ?the two principal components of wood - are being broken down. Degradation of lignin has been studied over the years by a number of research teams that have characterised the genes involved. But nobody, to date, has tackled the degradation of cellulose from a molecular perspective.

Cellulose is the most abundant biological polymer on the planet. It is made up of units of D-glucose united by means of glycosidic links that form long polymer chains. The breaking down by live organisms takes place through the action of three types of enzymes: endogluconases, cellobiohydrolases y b-glucosidases.

All these, necessary for the complete breaking down of cellulose, function by hydrolysing the glycoside links, but they vary in the specificity of substrate: the endoglucanases attack the glycosidic links within the cellulose molecule, the cellobiohydrolases act by liberating units of cellobiose from either end of the cellulose chain and the b-glucosidases hydrolyse the cellobiose molecules, producing glucose as end product.

In her PhD thesis Arantza Eizmendi Goikoetxea has analysed the activity of one of these types of enzymes: the cellobiohydrolases. To this end, she cloned, isolated and sequenced those genes of the oyster mushroom responsible for this activity and investigated the cult
'"/>

Source:Elhuyar Fundazioa


Page: 1 2

Related biology news :

1. Use of high hydrostatic pressure to inactivate Hepatitis A virus in oysters studied
2. Global warming increases oyster sensitivity to pollution
3. New peptide antibiotic isolated from American oyster
4. UNH researcher restoring oyster reefs to Great Bay
5. Rising ocean temperatures, pollution have oysters in hot water
6. Sequencing of the oyster mushroom genome
7. Why do oysters choose to live where they could be eaten?
8. Hopkins scientists show hallucinogen in mushrooms creates universal mystical experience
9. Scientists document complex genomic events leading to the birth of new genes
10. Compounds in plastic packaging act as environmental estrogens altering breast genes
11. Where bacteria get their genes
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Advances the characterisation the oyster mushroom genes

(Date:8/20/2014)... State University, the Wellcome Trust Sanger Institute and the ... Mycobacterium pinnipedii from skeletons found in Peru ... is a relative of the TB bacterium that affects ... These researchers assume that seals carried the pathogens from ... lions was unexpected" comments Sebastien Gagneux, from the Swiss ...
(Date:8/20/2014)... Health has awarded the Oklahoma Medical Research Foundation a ... anthrax and the bacteria,s effects on humans. , ... his colleagues have studied the human immune response to ... Human Immunology. The original funding came soon after anthrax-laced ... of the terrorist attacks of Sept. 11, 2001. ...
(Date:8/20/2014)... spiciness that is irresistible to some, but intolerable to ... their findings to develop a new drug candidate for ... inflammation or other problems. They reported their progress on ... in ACS, Journal of Medicinal Chemistry . , ... had pegged a compound called capsaicin as the active ...
Breaking Biology News(10 mins):$14.5 million grant awarded to continue anthrax studies 2
... release is available in German . ... been awarded this year,s Heinz Maier-Leibnitz Prizes. The relevant ... Germany,s most prestigious award for young scientists. The prizewinners ... Hanover, Dr. Wilhelm Hofmann, Psychology, University of Wrzburg, Dr. ...
... triggered by environmental stimuli and often occur in response to ... predisposition to develop these diseases, which highlights a role for ... high number of people with depression have a genetic change ... each other in the brain. Imaging of people with ...
... Williams boards ferries bound for North Carolina,s Outer Banks, the ... her the "Pollen Lady." Each spring from 2006 ... to the mainland, collecting pine pollen blown far offshore. She ... the most commonly planted tree in the southern United ...
Cached Biology News:Heinz Maier-Leibnitz Prizes 2010: 6 outstanding young researchers honored 2Heinz Maier-Leibnitz Prizes 2010: 6 outstanding young researchers honored 3Heinz Maier-Leibnitz Prizes 2010: 6 outstanding young researchers honored 4Depression associated with sustained brain signals 2Gone with the wind: Far-flung pine pollen still potent miles from the tree 2
(Date:8/20/2014)... 2014 High performance computing (HPC) ... most complete climate and Earth system model to ... issues. , Eight national laboratories, including Lawrence ... Center for Atmospheric Research, four academic institutions and ... participating national laboratories include Argonne, Brookhaven, Lawrence Berkeley, ...
(Date:8/20/2014)... 2014 Not long ago, it was ... be performed late in the development cycle – even ... regulatory trends suggest that, like many things GxP, expectations ... recent years, multiple drug sponsors have been required by ... questions during phase I/II. It’s not only clinical trial ...
(Date:8/20/2014)... 2014 GraphDB™ 6.0 ... improvements to the enterprise replication cluster, faster loading ... SOLR and Elasticsearch. This release happens to coincide ... triplestore – GraphDB™ was formerly known as OWLIM. ... only mature enterprise resilient RDF triplestore will also ...
(Date:8/19/2014)... 2014 A Geisinger researcher on a personal ... Centers for Disease Control and Prevention (CDC) award recognizing ... concern. Joseph Boscarino , Ph.D. MPH, ... team of researchers nominated for the Centers for Disease ... for Data Methods and Study Design. "Hepatitis ...
Breaking Biology Technology:New Project Is the ACME of Addressing Climate Change 2New Project Is the ACME of Addressing Climate Change 3Are Extractable and Leachables going Phase-Appropriate? New Webinar Hosted by Xtalks 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Geisinger investigator nominated for federal award 2Geisinger investigator nominated for federal award 3
... , ... WX ), a,leading pharmaceutical, biotechnology, and medical-device research ... United States,announced that it had been selected to the ... consecutive year. The list recognizes the 50,fastest-growing companies in ...
... , DURHAM, N.C., Nov. 27 ... water-soluble carbon nanotube-based cancer drug delivery system in Hyderabad, India. ... walls that allows for conjugation with cancer drugs, was developed ... conjugated carbon nanotubes serves as a drug delivery vehicle with ...
... , BOSTON, Nov. 25 Biotech firm Replikins Ltd., ... pandemic through the prediction, outbreak, and progress of the current H1N1 ... new data shows that the lethality of the H1N1 ("Swine Flu") ... the virus,s current outbreak in the spring of 2009 to resting ...
Cached Biology Technology:WuXi PharmaTech Named in Deloitte Technology Fast 50 China 2009 List for the Fifth Consecutive Year 2North Carolina Based Cromoz Inc. Launches Carbon Nanotechnology for Target Drug Delivery System in Cancer Treatment in Hyderabad, India 2Biological H1N1 Vaccines: Too Little, Too Late 2Biological H1N1 Vaccines: Too Little, Too Late 3Biological H1N1 Vaccines: Too Little, Too Late 4Biological H1N1 Vaccines: Too Little, Too Late 5
... isolated fromStreptomyces griseolusthat inhibits protein synthesis. ... in eukaryote ribosomes. Reported to induce ... including promyelocytic leukemia cells, Jurkat cells, ... Initiates intracellular signals and immediate early ...
... RC DC protein assay kit I provides reagents ... in the presence of reducing agents and detergents. ... assay. The kit includes reagents and standards sufficient ... I, 250 ml RC reagent II, 250 ml ...
Recommended for use as a cell culture substratum at 0.1-0.2 mg/cm 2 or 5-10 μl/cm 2 . Optimal concentration depends on cell type as well as the application or research objectives. Type B...
... state-of-the-art separation system using the asymmetric flow ... integrates easily with Wyatts multi-angle light scattering ... as the Optilab DSP. The combined system ... of the particles/molecules separated by the AFFF ...
Biology Products: