Navigation Links
How Fruitflies Know It's Time for Lunch

To control what you eat and when, your nervous system must coordinate a laundry list of signals: internal signals contain information about energy level, food preferences, and metabolic need, while external signals relay information about the quality of available food, determined by its smell and taste.

Scientists studying the fruitfly Drosophila have traced the path of olfactory signals beginning with chemical receptors in the mouth, which set off neurons that signal the antennal lobe of the central nervous system. From here, the electrical stimulation zooms toward the so-called mushroom body, a mushroom-shaped cluster of neurons involved in olfactory processing. Less is known about the gustatory signals, which begin both in the mouth and in the pharynx and aim toward the subesophageal ganglion region of the fly's brain. How olfactory and gustatory signals influence feeding patterns remains murky.

In a new study, Michael Pankratz and Christoph Melcher used genetic analysis to gain insight into the adult and larval neural networks that use taste information to regulate eating. Specifically, they found that several types of neurons responsible for coordinating taste signals express the gene hugin (hug), a gene linked to abnormal eating activity and expressed in only the subesophageal ganglion. By altering hug expression, the researchers uncovered the gene's behavioral influence: hug-expressing neurons influence a fly's decision to sample new food sources. The researchers also proposed that hug proteins play a role in hormone-triggered growth, an important consequence of adequate feeding.

To begin their investigation, Melcher and Pankratz analyzed the DNA from flies with abnormal eating behavior. One group of these flies shared a mutant klumpfuss (klu) gene, normally responsible for encoding a protein transcription factor. Because neural transcription factors control production levels of other neural proteins, the researchers used DNA microarray
'"/>

Source:PLoS Biology


Page: 1 2 3

Related biology news :

1. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
2. Plants, animals share molecular growth mechanisms
3. Plants respond similarly to signals from friends, enemies
4. Affymetrix Unveils Plans to Double Plant and Animal Genome Microarray Offering
5. Plant hemoglobins: Oxygen handlers critical for nitrogen fixation
6. Plants defy Mendels inheritance laws, may prompt textbook changes
7. Whats really making you sick? Plant pathologists offer the science behind Sick Building Syndrome
8. Plant Sacrifices Cells to Fight Invaders
9. Breakthrough System for Understanding Ocean Plant Life Announced
10. Plant pathologists evaluate eco-friendly alternatives to methyl bromide
11. Study: Plants use dual defense system to fight pathogens
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How Fruitflies Know Time for Lunch

(Date:6/26/2015)... 26, 2015 ATL Technology, LLC, a top provider ... in single use solutions, headquartered in Springville, Utah ... California corporation with locations in ... Jose, Costa Rica ). This acquisition will ... with ATL Technology,s existing facility in Costa ...
(Date:6/25/2015)... LAKE CITY , June 25, 2015  Imagine ... first steps toward a healthier, happier life. That,s exactly ... is designed to do. The cutting-edge, portable health program ... offers real-life solutions to help improve your lifestyle and ... Association awards dinner and gala Wednesday night, USANA,s THA ...
(Date:6/24/2015)... 24, 2015 The biologics safety testing market ... for the market include growth of the pharmaceutical and ... launches. Over the years, the number of drug approvals ... 2010, the FDA approved 225 drug applications and Health ... Europe accounted for 3,822 of the ...
Breaking Biology News(10 mins):ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2@USANAinc's Personalized Nutrition Program Wins Industry Innovation Award 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4
... unravel the genomes of plant pathogens, comparisons can be ... the organisms that threaten crops. John McDowell, associate professor ... in the strategies of several devastating rusts and mildew. ... findings of other scientists, McDowell observes shared traits that ...
... soybean rust resistance in breeding populations, said Glen Hartman, ... scientist. Hartman and his team of researchers successfully used ... DNA in soybean leaf tissue to quantify the level ... rust. "This is not a new technique," Hartman ...
... , DAVIS, Calif.River flow fluctuations downstream of dams are ... can have significant negative effects on aquatic species, such ... from the USDA Forest Service,s Pacific Southwest Research Station, ... California, Berkeley. The team examined how altered water ...
Cached Biology News:Comparison of genomes of plant parasites provides solid clues for response 2Molecular technique advances soybean rust resistance research 2Foothill yellow-legged frog provides insight on river management 2
(Date:7/7/2015)... , July 7, 2015   Moleculera ... two-year, $300,000 matching grant from the Oklahoma Center ... This grant supports the development and clinical validation ... directed against neuronal antigens in patients experiencing neuropsychiatric ... Such panels are intended to assist physicians in ...
(Date:7/7/2015)... FL (PRWEB) , ... July 07, 2015 , ... ... ActiGraph’s CentrePoint Study Admin system was developed to solve many of ... and analysis, particularly within studies that involve multiple clinical sites and/or remote data ...
(Date:7/6/2015)... 2015  Approximately 1% of the population inherits a ... These individuals are three times more likely to develop ... of the nation,s leading medical journals by researchers from ... Photo - http://photos.prnewswire.com/prnh/20150706/230685 ... roseola (also known as "sixth disease") and occasional seizures ...
(Date:7/6/2015)... , July 6, 2015 Navitas, a leading Regulatory Service provider, ... hub in Bogota, Colombia . Navitas, expansion ... many benefits provided by Colombia , the third largest ... Logo - http://photos.prnewswire.com/prnh/20150703/228239LOGO ... allows US based clients to communicate with Navitas regulatory professionals in close ...
Breaking Biology Technology:Moleculera Labs Receives Grant from OCAST to Develop Assays to Identify Individuals with Neuropsychiatric Disorders of Autoimmune Origin 2Moleculera Labs Receives Grant from OCAST to Develop Assays to Identify Individuals with Neuropsychiatric Disorders of Autoimmune Origin 3ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 2ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 3Inherited Herpes Virus Increases the Risk of Angina Reports HHV-6 Foundation 2Inherited Herpes Virus Increases the Risk of Angina Reports HHV-6 Foundation 3Navitas Launches Latin American Regulatory Operations Hub in Bogota, Colombia 2Navitas Launches Latin American Regulatory Operations Hub in Bogota, Colombia 3
... search engines took another turn last month when the District ... 800- JR Cigar, Inc ., v. GoTo.com, Inc . ... now part of Yahoo! , ,GoTo sold ... Cigar" to various JR Cigar competitors. , ,As mentioned in ...
... or memorable events on tape can be difficult because personal ... soporific. , ,However, new video editing equipment hitting the market ... swallow. With new transitions and effects in the hands of ... be made into an entertaining avant-garde film or music video. ...
... applications, mashups are creating interesting new sounds, sites, and ... soundtracks of one song with the words of another, ... , ,On the web, mashups are created through ... classified listings, or other content linked with other data ...
Cached Biology Technology:Are consumers confused by search engine ads? 2Are consumers confused by search engine ads? 3Are consumers confused by search engine ads? 4Would you like your music (and data) mashed? 2Would you like your music (and data) mashed? 3Would you like your music (and data) mashed? 4Would you like your music (and data) mashed? 5
Mouse monoclonal [CLB-SW16 (formerly 708)] to CD42d (rating: ****) ( Abpromise for all tested applications). entrezGeneID: 2814 SwissProtID: P40197...
Mouse monoclonal [7C6] to Bcr-abl ( Abpromise for all tested applications). SwissProtID: P11274...
Affinity Purified Rabbit Anti-mouse sRANKL Biotinylated Polyclonal Antibody...
Rabbit polyclonal to FOXJ2 ( Abpromise for all tested applications). entrezGeneID: 55810 SwissProtID: Q9P0K8...
Biology Products: