HOME >> BIOLOGY >> NEWS
Flies may taste bitter better, first map of insect 'tongue' reveals

DURHAM, N.C. -- The first sensory map of the fly equivalent of a tongue suggests that insects have discriminating taste -- perhaps trumping that of mammals in the ability to differentiate among bitter flavors. The findings could ultimately prove useful in the development of improved pest repellants, said the Duke University Medical Center researchers.

According to the team's analysis, specialized cells in the fruit fly's primary taste organ, the labellum -- a structure on the fly's head that looks like a pair of lips covered in bristles -- respond to either sweet or bitter flavors, much like cells of the human tongue. However, while earlier work suggested mammalian bitter tasting cells are all alike, the Duke researchers found that different sets of bitter-sensitive nerve cells on the fly "tongue" bear distinct combinations of taste receptors, the Duke team found. Receptors are the protein switches that trigger the nerve cells to send signals to the brain's taste-processing centers in response to particular food items or other chemicals.

The unique coding of the flies' tasting cells raises the possibility that insects can discern among different bitter tastes more precisely than can humans or other mammals, said Hubert Amrein, Ph.D., assistant professor of genetics and lead author of the study. Amrein and his colleagues reported their findings in the June 22, 2004, issue of Current Biology. The work was supported by the National Institutes of Health.

"Our findings suggest that the sensory systems for taste in insects and mammals are set up in a remarkably similar manner, despite the fact that the structure of the taste organs are so different and that the genes involved bear no relationship to one another," Amrein said.

The fly's potentially more discriminating sensitivity to bitter tastes -- generally associated with unpalatable food or toxins -- might allow them to select the best food item among multiple suboptimal choices, Amrein
'"/>

Contact: Kendall Morgan
kendall.morgan@duke.edu
919-684-4148
Duke University Medical Center
21-Jun-2004


Page: 1 2 3

Related biology news :

1. Flies offer clues to anesthesia-resistant memory
2. Scientists, Using Flies, Trace Genetic Links To Cancer
3. For Fruit Flies, Finding The Right Mate May Mean Offspring With A Longer Life Span, According To New Study
4. Two Modes Of Aging Discovered In Fruit Flies
5. Scientists Discover Two Modes Of Aging In Fruit Flies
6. Monogamy Has Its Rewards For Flies
7. UF Researchers Innovative Fence Helps Control Sand Flies
8. Drunken Fruit Flies Reveal Molecular Pathway Regulating Sensitivity To Alcohol
9. Fruit Flies May Shed Light On Cocaine Addiction
10. Two Parasitic Wasps Show Promise For Controlling Pest Flies
11. Malnutrition Impacts Longevity Of Females More Than Males And Shows Gender Differences In Fruit Flies

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2019)... ... May 16, 2019 , ... SFC Fluidics, Inc. ... the Industry Development and Discovery Partnership that was awarded to SFC Fluidics in 2018 ... integrated pod artificial pancreas (AP) system for people with type 1 diabetes (T1D). By ...
(Date:5/14/2019)... ... May 13, 2019 , ... NRD, LLC is excited to ... May 15-16, 2019, the largest medical technology event in the Northeast serving over ... systems product organizations. , They will be displaying their latest technologies, including a ...
(Date:5/8/2019)... ... May 08, 2019 , ... MMS Holdings – an ... provided by Medrio , the leading provider of eClinical technology for small ... By collaborating to position high-quality CRO services with Medrio’s fast and easy-to-use eClinical ...
Breaking Biology News(10 mins):
(Date:5/14/2019)... ... May 14, 2019 , ... Gateway Genomics , a ... its space from 2,500 to 5,000 square feet. , “This past year has ... ,” says Gateway Genomics CEO, Chris Jacob. “The SneakPeek At-Home test, which is mailed ...
(Date:5/4/2019)... ... May 03, 2019 , ... More than ... Dakila Pesquisas Association, the scientist and ufologist Urandir Fernandes de Oliveira, last Thursday ... detailed the results of some research carried out by the association, in partnership ...
(Date:5/2/2019)... S.D. (PRWEB) , ... April 30, 2019 , ... The ... from industrial scale macro breweries to local craft breweries, and even home brewing clubs ... very complex chemical and biological processes, that when mastered can produce a superb product. ...
(Date:5/2/2019)... , ... May 02, 2019 , ... ... clinic in the greater Boston area. Gone are the days of painful hair ... iX Robotic Hair Restoration System is the only robotic intelligent solution to offer ...
Breaking Biology Technology:
Cached News: