Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Biological clock of honey bee more similar to humans than to insects

26.10.2006
Groundbreaking research undertaken by a group headed by Dr. Guy Bloch of the Alexander Silberman Institute of Life Sciences at the Hebrew University of Jerusalem has found that the molecular structure of the biological clock of the honey bee is more similar to the biological clock of mammals than to that of flies.

The research identified and characterized the key genes involved in the biological clock of bees. The findings of the research will be published on Oct. 26 in an article describing the honey bee genome sequence in Nature and in a companion paper in Genome Research.

The biological clock is an internal system in the bodies of living creatures that creates circadian rhythms, derived from the Latin expression circa dies that means "about one day." The critical role of the circadian clock stems from its influence on many processes, such as time of alertness and fatigue, activity rhythms, cyclic changes in body temperature and the secretion of hormones.

Bees rely on the biological clock for timing visits to flowers when nectar and pollen flow is at its highest. They can learn to reach flowers at nine different points of time during the day within an accuracy of about 20 minutes. The clock is also essential for navigation that uses the sun as a compass because the sun moves during the day from east to west. Bees, whose bodies are slightly longer than one centimeter, precisely navigate to flowers situated as far as 10 km from their beehive.

... more about:
»biological clock »circadian »clock »insects »rhythm

The central biological clock is located in the brain and is made up of groups of “clock cells,” each of which is capable of creating a circadian rhythm independently. These circadian rhythms are generated by complex interactions between "clock genes" that accumulate in the cells and eventually close a cycle of about 24 hours when they shut down their own production. The genes which were isolated by Dr. Bloch and his research team are responsible for this process in bees.

The research of Dr. Bloch and his team is part of a worldwide project for mapping the honey bee genome (similar to the human genome project which was completed several years ago). According to Dr. Bloch, "Discovering that molecular characteristics of the biological clock in bees is closer to the biological clock of mammals than that of flies was a big surprise, since previously it had been thought that there is one type of clock that is typical of insects and another typical of mammals. These results change our understanding of the evolution of circadian clocks."

Dr. Bloch points out that the discovery raises many additional questions concerning the evolution of biological clocks and the significance of differences in the organization of the clock in different creatures. For example, why is the clock of bees closer to humans than that of flies? Is the similarity between bees and mammals related to the behavioral complexity of bees? How did the clock of ancestral insects work: was it more similar to that of bees or flies?

Characterization of the genes in the clock of the bee opens up new directions of research concerning the understanding of the molecular base of complex behaviors, such as sun-compass navigation, time sensing, flexibility in circadian rhythms, and social regulation of the circadian clock.

Another reason that research on the evolution and function of clock genes is important is that these genes are involved in a variety of illnesses, such as mental disturbances, alcoholism, problems of overweight and drug addition, as well as in processes relating to aging.

Jerry Barach | alfa
Further information:
http://www.huji.ac.il

Further reports about: biological clock circadian clock insects rhythm

More articles from Life Sciences:

nachricht Protein interaction helps Yersinia cause disease
21.08.2018 | Schwedischer Forschungsrat - The Swedish Research Council

nachricht Nanobot pumps destroy nerve agents
21.08.2018 | American Chemical Society

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries

There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.

The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

A paper battery powered by bacteria

21.08.2018 | Power and Electrical Engineering

Protein interaction helps Yersinia cause disease

21.08.2018 | Life Sciences

Biosensor allows real-time oxygen monitoring for 'organs-on-a-chip'

21.08.2018 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>