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:10/15/2014)... assess the pandemic risk from strains of influenza virus ... allow ourselves to become complacent that the most substantial ... scientists. , Influenza pandemics arise when a new virus ... widespread immunity – spreads in the human population. There ... years, the worst of which – the 1918 Spanish ...
(Date:10/15/2014)... an unexpected extent. The outbreak does not follow the ... a new disease dynamic in regions, where it has ... National Academy of Sciences Leopoldina, acatech – the German ... the German Academies of Sciences and Humanities have presented ... the statement the academies call for the following consequences ...
(Date:10/15/2014)... Fred Alt will be awarded the 44th Rosenstiel Award ... for his pioneering research exploring the mechanisms of genomic ... cancer cells. Alt is the second alumnus to win ... Nobel Prize in 2003. , Alt is the Charles ... at Harvard Medical School and an investigator at the ...
Breaking Biology News(10 mins):Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2
... way to activate Epstein-Barr viruses inside tumors as ... be manipulated to destroy their tumors. They say this ... cancers associated with Epstein-Barr, including at least four different ... In the March 1 issue of Clinical Cancer Research, ...
... intake can increase health and longevity. Professor Stephen Spindler ... reducing calorie intake later in life can still induce ... calorie reduction. Importantly, this also includes anti-cancer effects. , ... novel screening technique to find drugs which mimic this ...
... energy sources heats up, researchers at the University of ... responsible for biomass breakdown are turned on in a ... and cornstalks. , Waste products such as grass clippings ... ethanol—may soon be fodder for hungry, gene-tweaked bacteria. The ...
Cached Biology News:Researchers wake up viruses inside tumors to image and then destroy cancers 2Researchers wake up viruses inside tumors to image and then destroy cancers 3It's never too late to get it back! Aging interrupted 2Genome sequencing reveals key to viable ethanol production 2Genome sequencing reveals key to viable ethanol production 3
(Date:10/19/2014)... 19, 2014 The Latin American hardware ... in Latin America with analysis and forecast of revenue. ... and is expected to reach $2,366.8 million by 2018, ... , Browse through the TOC of the Latin American ... the in-depth analysis provided. It also provides a glimpse ...
(Date:10/19/2014)... The Asia-Pacific Bromine Market report ... with analysis and forecast of revenue. , Browse ... Market report, to get an idea of the ... of the segmentation in the Asia-Pacific bromine market, ... , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine is ...
(Date:10/19/2014)... The report "Chocolate, Cocoa Beans, Lecithin, Sugar and ... and Forecast (2011 - 2016)," analyzes the chocolate ... the major market drivers, restraints, and opportunities for the ... The global chocolate market is expected to grow from ... an estimated CAGR of 2.7% from 2011 to 2016. ...
(Date:10/19/2014)... According to market research report “Outdoor ... Wireless gateways)]- Global Advancements, Forecasts and Analysis (2013 ... Wi-Fi market with analysis and forecasting of the ... the drivers and the restrains for this market ... challenges. , Browse 65 market data tables and ...
Breaking Biology Technology:The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 4
... Quest Product Development, with partner,University of Colorado, ... Transfer grant by the National Institutes of ... next-generation endoscope. MicroFlex,technology, derived from aerospace engineering, ... active control over the shape of the ...
... Aug. 7 Odyssey Thera, Inc. announced,that it ... following,Pfizer,s decision to progress a discovery stage drug ... studied by,Odyssey Thera as part of the ongoing ... with the progress of the collaboration with,Pfizer," said ...
... /Xinhua-PRNewswire-FirstCall/ -- China-Biotics,Inc. (OTC Bulletin Board: CHBT), a ... marketing and distribution of,probiotics dietary supplements, today announced ... EDT on Friday, August 15, 2008, to discuss ... June 30, 2008, of its fiscal,2009., Hosting ...
Cached Biology Technology:NIH Funds $1M Research at Quest Product Development and University of Colorado for New Digitally-Controlled Endoscopes 2China-Biotics, Inc. Announces Conference Call to Discuss First Quarter 2009 Financial Results 2China-Biotics, Inc. Announces Conference Call to Discuss First Quarter 2009 Financial Results 3
...
... Collect XL provides RS232/Serial data collection ... Excel. Complete instrument integration with ... interfaces for balances, pH meters, titrators, density ... New RS232 and serial instruments can be ...
DNA sequencing - plasmids or PCR fragments, 3-7 working days service....
Nuclear/Cytosol Fractionation Kit Research Focus: other Storage Temperature: 4C Shipping Temperature: 4C...
Biology Products: