Navigation Links
Pathway found that lets mosquitoes fatten up, slow down for winter
Date:4/24/2008

COLUMBUS, Ohio Two genes that help insulin regulate mosquitoes growth have been identified as key contributors to how the insects enter a dormant state to survive winters cold.

The research finding broadens the understanding of the mosquito life cycle and appears to shed some light on how other insects and invertebrate species weather the winter months.

The shorter days of autumn trigger certain species of mosquitoes into diapause, a hibernation-like state of arrested development that allows them to survive through the winter. But this new research has determined that a hormonal response is behind the mosquitos ability to store up extra fat and halt reproductive activity in preparation for its months-long dormancy, said David Denlinger, senior author of the study and professor of entomology at Ohio State University.

The research appears online this week in the Proceedings of the National Academy of Sciences.

Denlingers lab is working with Culex pipiens, a common mosquito in the United States and the species that carries the West Nile virus in North America. He and colleagues have identified several genes in this mosquito that function within the insulin signaling pathway, the mechanism necessary for diapause to begin. However, they focused on two genes that appear to have the most power in regulating the insects transition into a dormant state.

Were trying to decipher this whole pathway how the shortening days signal the hormonal shifts that tell mosquitoes to halt development, Denlinger said.

By disrupting the functions of these two genes, the scientists were able to both mimic hormonal circumstances that initiate diapause as well as disrupt fat retention during diapause pointing to a separate function for each gene.

While the point at this stage is fully understanding the intricacies of this life cycle, the findings could someday lead to methods to manipulate mosquito populations so they nev
'/>"/>

Contact: David Denlinger
Denlinger.1@osu.edu
614-292-8209
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Proteins that stop a major signaling pathway can also generate new proteins
2. Stem cells and cancer: cancer pathways that also control the adult stem cell population
3. Researcher discovers pathway plants use to fight back against pathogens
4. Newly defined signaling pathway could mean better biofuel sources
5. MIT applies engineering approach to studying biological pathways
6. Researchers reveal HIV peptides possible pathway into the cell
7. Paired microbes eliminate methane using sulfur pathway
8. Rong Li Lab reports protein interactions of MAP kinase signaling pathway
9. Salk scientists identify key nerve navigation pathway
10. Study identifies pathway required for normal reproductive development
11. Old developmental pathways spawn revolutionary evolutionary changes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... a healthy source of protein, that,s not why the Millennials ... presented at Tops Club Inc.,s annual International Recognition Days convention ... 20-something women who want dishes that are quick, easy to ... basically seem to care less about any health benefits of ... to look good and because it,s quick to cook and ...
(Date:7/9/2014)... studies suggest that children delivered by Caesarean section have a ... it is still unknown why this is the case and ... Faculty of Health and Medical Sciences therefore decided to scrutinise ... system in a study of newborn mouse pups. ... section had developed a lower number of cells that strengthen ...
(Date:7/9/2014)... for another in a line of living stem cells ... this decade. As with any new technology, it brings ... in humans, for example--as well as questions and safety ... concerns to rest: using gene-editing techniques on stem cells ... cells. The new results were published July 3 in ...
Breaking Biology News(10 mins):Mouse study: Natural birth may strengthen the immune system 2No extra mutations in modified stem cells, study finds 2No extra mutations in modified stem cells, study finds 3
... Institute for Medical Research today unveiled a collaboration with ... (MIT) being spearheaded by GlaxoSmithKline (GSK), which aims to ... body,s organs and functions. This initiative is discussed in ... is a powerful collaboration between leaders in the field ...
... from turtles, and scientists who have just sequenced the first ... the shelled creatures, remarkable longevity and ability to survive for ... turtles use to protect their heart and brain from oxygen ... stroke, the researchers said. UCLA conservation biologist ...
... April 9, 2013 Many terrestrial animals are frequently observed ... a lion kill in the Serengeti or a buzzard swooping ... activity in the oceans is especially difficult, and often overlooked ... published in PLOS ONE titled, " White sharks ...
Cached Biology News:Feinstein Institute collaborates with GSK, UPenn, MIT to research body's electrical impulses 2Scientists decode genome of painted turtle, revealing clues to extraordinary adaptations 2Scientists decode genome of painted turtle, revealing clues to extraordinary adaptations 3Great white sharks 2
(Date:1/15/2014)... 15, 2014 Two champions of science, ... sponsorship of an annual competition for middle and high ... to, innovative STEM study. The competition presents students with ... of Engineering Aptitude, Mathematics, and Sciences is a ...
(Date:1/15/2014)... Arizona (PRWEB) January 15, 2014 2013 ... for Scottsdale’s Brain State Technologies®. They saw continued independent ... Medical Center who were awarded a $1 million grant ... published in “Brain and Behavior” a peer reviewed journal, ...
(Date:1/15/2014)... , Jan. 15, 2014 TaiGen Biotechnology Company, ... exclusive agreement with R-Pharm, a leading Russian pharmaceutical company, ... the Russian Federation , ... Independent States (CIS). Nemonoxacin is a novel antibiotic for the ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Histogen, Inc., ... products of cells grown under simulated embryonic conditions, today ... agreement with Suneva Medical, Inc. for physician-dispensed aesthetic products ... , This agreement is an amendment to the ...
Breaking Biology Technology:Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3
... , , KENILWORTH, N.J., July ... results for the 2009 second quarter. , , ... have given us the strength to again power through tough challenges - ... said Fred Hassan, chairman and CEO. , , ...
... ... Accreditation and Compliance Excellence Solution , ... San Francisco, CA (PRWEB) July 21, 2009 -- Quantros, a leading ... industry , announced today the highly positive results East Jefferson General Hospital (EJGH) has ...
... ... Europe, Canada, and Russia requiring confidential, direct buyer representation for a ... Board Certified real estate attorney and Lic. Real Estate Broker, Christian ... broker and real estate attorney exclusively for premium property buyers, greatly ...
Cached Biology Technology:Schering-Plough Reports Financial Results for 2009 Second Quarter 2Schering-Plough Reports Financial Results for 2009 Second Quarter 3Schering-Plough Reports Financial Results for 2009 Second Quarter 4Schering-Plough Reports Financial Results for 2009 Second Quarter 5Schering-Plough Reports Financial Results for 2009 Second Quarter 6Schering-Plough Reports Financial Results for 2009 Second Quarter 7Schering-Plough Reports Financial Results for 2009 Second Quarter 8Schering-Plough Reports Financial Results for 2009 Second Quarter 9Schering-Plough Reports Financial Results for 2009 Second Quarter 10Schering-Plough Reports Financial Results for 2009 Second Quarter 11Schering-Plough Reports Financial Results for 2009 Second Quarter 12Schering-Plough Reports Financial Results for 2009 Second Quarter 13Schering-Plough Reports Financial Results for 2009 Second Quarter 14Schering-Plough Reports Financial Results for 2009 Second Quarter 15Schering-Plough Reports Financial Results for 2009 Second Quarter 16Schering-Plough Reports Financial Results for 2009 Second Quarter 17Schering-Plough Reports Financial Results for 2009 Second Quarter 18Schering-Plough Reports Financial Results for 2009 Second Quarter 19Schering-Plough Reports Financial Results for 2009 Second Quarter 20Schering-Plough Reports Financial Results for 2009 Second Quarter 21Schering-Plough Reports Financial Results for 2009 Second Quarter 22Schering-Plough Reports Financial Results for 2009 Second Quarter 23Schering-Plough Reports Financial Results for 2009 Second Quarter 24Schering-Plough Reports Financial Results for 2009 Second Quarter 25Schering-Plough Reports Financial Results for 2009 Second Quarter 26Schering-Plough Reports Financial Results for 2009 Second Quarter 27Quantros ACE Helps East Jefferson General Hospital Achieve Best-in-Class Performance 2Quantros ACE Helps East Jefferson General Hospital Achieve Best-in-Class Performance 3Miami Beach Real Estate Attorney Opens Miami Real Estate Brokerage for International Luxury Miami Beach Condo Buyers From Distressed Sellers 2Miami Beach Real Estate Attorney Opens Miami Real Estate Brokerage for International Luxury Miami Beach Condo Buyers From Distressed Sellers 3
... in a regulated environment, Pipette Tracker ... software that automates gravimetric pipette calibration ... that meets todays regulatory compliance requirements. ... solution that includes a full security ...
... Detection of the yolk protein Vtg in ... simple and sensitive biomarker for endocrine disrupting chemicals ... Vtg has become an accepted screening test for ... Vtg (rainbow trout) EIA kit is a double-antibody ...
... AAIPharmas Routine Testing Laboratory (RTL) ... developed over 25 years. ,,Microbial method ... used to monitor the conditions of ... quality for manufactured products,,We offer a ...
... whose sequence is from rat SCAMP 5. The sequence of ... - Q - P - Q - T - Q - ... - Y - T - Y - S - N(233). ... with the polyclonal antibody that reacts with this product and the ...
Biology Products: