Fascinating Bioluminescence: The Cold Light of Life

drelayaraja By drelayaraja, 9th Jul 2010 | Follow this author | RSS Feed
Posted in Wikinut>News>Science

Information on the amazing power of the organisms to emit light. Most of the marine animals have the ability to emit light for various reasons. Let us explore.

Light Emission by organisms

Emission of light by a living organism is termed as bioluminescence. The light emitted is also known as cold light, because only 20% of the light produces thermal radiation.


Most marine animals emit light belonging to the blue and green spectrum, as these wavelengths can be transmitted through the marine water very easily. Some marine fished and larvae emit red and infrared light.

Non-marine organisms also emit light, which are of varied colors. Fireflies and glow worms are the best known land bioluminescent animals.

need for Bioluminescence

Why is bioluminescence needed?

The light emitted by the organisms serve a wide range of purposes.

Attraction and Hunting: many deep sea creatures, especially fishes such as the anglerfish, use the light to attract or lure the prey. Some species attract their mates by emitting light.

Repulsion and Warning: Certain squid species warn their predators by emitting light. In some cases a cloud of luminescent ink is expelled to repel the predator. This cloud of luminescent ink contains bioluminescent bacteria.
Repulsion and Warning: Certain squid species warn their predators by emitting light. In some cases a cloud of luminescent ink is expelled to repel the predator. This cloud of luminescent ink contains bioluminescent bacteria.

Communication and Illumination: Many species of bacteria communicate through bioluminescence. Formation of colonies is also attributed to this fact.

These bioluminescent organisms are the target of many researchers, who intend to make use of the luciferase system for human use.

Some proposed applications of engineered bioluminescence are:

· Trees to line highways to save electricity bills

· Christmas trees with own lights

· Plants that luminesce when they need watering

· Bio-identifiers for tagging

· Novelty pets like rabbit, mice, fish, prawn, etc. that emit light
© 2010 Dr.P.Elayaraja

Tags

Attraction, Bacteria, Bioluminescence, Cold Light, Communication, Drelayaraja, Elayaraja, Emission, Fish, Hunting, Illumination, Light, Marine, Orgamisms, Spectrum, Squid, Thermal, Warning

Meet the author

author avatar drelayaraja
I am an Instructional designer engaged in e-learning content development. I have a passion for photography and poetry.

http://www.triond.com/rw/268111
http://www.neobux.com/?r=drelayaraja

Share this page

moderator Sam Wormleighton moderated this page.
If you have any complaints about this content, please let us know

Comments

author avatar scheng1
10th Jul 2010 (#)

Interesting.

Reply to this comment

author avatar j.m. raymond
10th Jul 2010 (#)

The squid is cool!
Intriguing applications for bioluminescence, other than the pets as nite-lights. Good stuff, drelayaraja

Reply to this comment

author avatar fionajean
12th Jul 2010 (#)

This is a really interesting article and the photo's are ultra cool.

Reply to this comment

author avatar Plainview
26th Jul 2010 (#)

Very neat stuff. I would love to drive down a road at night with trees lighting the way.

Reply to this comment

author avatar Rachel1919
26th Jul 2010 (#)

Bioluminescence is fascinating to me for some reason.

Reply to this comment

author avatar Axel Brooks
5th Mar 2013 (#)

wow!!! im speechless by this

Reply to this comment

Add a comment
Username
Can't login?
Password