Navigation Links
The buzz around beer
Date:11/17/2011

RIVERSIDE, Calif. Ever wondered why flies are attracted to beer? Entomologists at the University of California, Riverside have, and offer an explanation. They report that flies sense glycerol, a sweet-tasting compound that yeasts make during fermentation.

"Insects use their taste system to glean important information about the quality and nutritive value of food sources," said Anupama Dahanukar, an assistant professor of entomology, whose lab conducted the research. "Sugars signal high nutritive value to flies, but little is known about which chemical cues flies use for food sources that are low in sugar content such as beer."

Dahanukar's lab examined the feeding preference of the common fruit fly for beer and other products of yeast fermentation, and found that a receptor (a protein that serves as a gatekeeper) that is associated with neurons located in the fly's mouth-parts is instrumental in signaling a good taste for beer.

The receptor in question is Gr64e. Once a fly has settled on beer, Gr64e detects glycerol and transmits this information to the fly's neurons, which then influences the fly's behavioral response.

Dahanukar explained that flies use other receptors in their sensory organs to find food from a distance.

"Taste becomes important only after the fly makes physical contact with food," she said. "A fly first locates food sources using its odor receptors crucial for its long-range attraction to food. Then, after landing on food, the fly uses its taste system to sample the food for suitability in terms of nutrition and toxicity."

Dahanukar, a member of UCR's Institute for Integrative Genome Biology, explained that taste receptors also come into play when a female fly has to locate a suitable site for laying eggs.

"Females come to a decision after they have conducted intense probing of various potential sites," she said.

Study results appeared online Nov. 6 in Nature Neuroscience.

Dahanukar was joined in the project by Zev Wisotsky, Adriana Medina, and Erica Freeman all of whom work in her lab.

Wisotsky, a neuroscience graduate student and the first author of the research paper, performed the imaging, taste electrophysiology and behavior experiments. He was joined in his efforts by Freeman, a bioengineering graduate student, who performed the olfactory recordings; and Medina, a junior specialist in entomology, who performed the feeding preference experiments and molecular analysis.

The lab is poised now to move the research forward.

"How do you get information from the chemical environment to the brain not just in flies but other insects as well?" Dahanukar said. "How is that information processed to give rise to appropriate behavior? How does feeding behavior change with hunger? These are some questions we would like pursue."


'/>"/>
Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert  

Related biology news :

1. Send your name around the Earth on NASAS Glory mission
2. World Food Day brings attention to food security around the globe
3. Research around the North Pole
4. UGA study may give hope that ivory-billed woodpeckers still around
5. Novel technology could produce biofuel for around €0.50 a liter ($2.49 a gallon)
6. Novel technology could produce biofuel for around 0.50 a liter ($2.49 a gallon)
7. High-fat diets inflame fat tissue around blood vessels, contribute to heart disease
8. Neurological work-arounds offer hope to people with monoamine-related disorders
9. Rising sea levels set to have major impacts around the world
10. Researchers from around the globe coming to K-State June 21 for workshop on Fusarium fungus
11. The pitch of blue whale songs is declining around the world, scientists discover
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The buzz around beer
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
(Date:3/24/2017)... 24, 2017 The Controller General of Immigration from ... Abdulla Algeen have received the prestigious international IAIR Award for the ... Continue Reading ... ... Controller Abdulla Algeen (small picture on the right) have received the IAIR ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... ... 2017 , ... San Diego-based team building and cooking events company, Lajollacooks4u, has ... The bold new look is part of a transformation to increase awareness, appeal to ... period. , It will also expand its service offering from its signature gourmet cooking ...
(Date:10/10/2017)... 10, 2017 International research firm Parks Associates announced ... at the TMA 2017 Annual Meeting , October 11 in ... residential home security market and how smart safety and security products impact ... Parks Associates: Smart Home ... "The residential security market has ...
(Date:10/9/2017)... DIEGO , Oct. 9, 2017  BioTech ... biological mechanism by which its ProCell stem cell ... critical limb ischemia.  The Company, demonstrated that treatment ... amount of limbs saved as compared to standard ... the molecule HGF resulted in reduction of therapeutic ...
Breaking Biology Technology: