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Bioluminescence
Mechanism
- Purvi Gosrani
Introduction
When a living organism produces and emits light as a result of a
chemical reaction, the process is known as ...
How does bioluminescence work ?
Bioluminescence is a product of a chemical reaction in an organism
It involves a class o...
Differentorganisms shows bioluminescence
1. Bacteria
Family Vibrionaceae contains most
bioluminescent bacteria
 Typicall...
2. Mushroomsand other Fungi
 “Foxfire” referred to the
green glow light emitted by
wood decaying mushrooms and
other fung...
3. Worms
Both marine and terrestrial
worms that exhibit
bioluminescence
Earthworm luminescence is
produced by the coelom...
4. Insects
 Firefly is the most common terrestrial
bioluminescence organism
Variety of firefly species are found in
the ...
What is BioluminescenceUsedFor?
Bioluminescence plays an important
role in the ecology of the ocean
The function of biol...
Use of bioluminescencein defence
While many defensive techniques are
produced, one of the most common is the
"burglar ala...
Use of bioluminescencefor mating
There are some marine species that are
sparsely populated, limiting the net
reproduction...
Bioluminescence mechanism
Bioluminescence mechanism
Bioluminescence mechanism
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Bioluminescence mechanism

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how bioluminescence work

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Bioluminescence mechanism

  1. 1. Bioluminescence Mechanism - Purvi Gosrani
  2. 2. Introduction When a living organism produces and emits light as a result of a chemical reaction, the process is known as Bioluminescence Bio means 'living' in Greek while lumen means 'light' in Latin During the process, chemical energy is converted into light energy The process is caused by an enzyme-catalyzed chemoluminescence reaction The light production from bioluminescence is “cold light” emission, wherein less than 20% of the light is thermal radiation
  3. 3. How does bioluminescence work ? Bioluminescence is a product of a chemical reaction in an organism It involves a class of chemicals called luciferins ("light bringers“) The luciferin oxidizes in the presence of a catalytic enzyme (luciferase) to create light and an ineffective compound (oxyluciferin)
  4. 4. Differentorganisms shows bioluminescence 1. Bacteria Family Vibrionaceae contains most bioluminescent bacteria  Typically found as symbionts with deep sea animals gram negative, one or more flagella It uses bacterial luciferin for bioluminescence They create the phenomenon of a "milky sea" known to sailors for centuries
  5. 5. 2. Mushroomsand other Fungi  “Foxfire” referred to the green glow light emitted by wood decaying mushrooms and other fungi It was used as a light source for the early wooden submarine They use luciferin illudin for bioluminescence, which is toxic to ingest
  6. 6. 3. Worms Both marine and terrestrial worms that exhibit bioluminescence Earthworm luminescence is produced by the coelomic fluid, and ranges from blue to orange depending on the species
  7. 7. 4. Insects  Firefly is the most common terrestrial bioluminescence organism Variety of firefly species are found in the temperate to tropical regions of the Americas and parts of S.E. Asia
  8. 8. What is BioluminescenceUsedFor? Bioluminescence plays an important role in the ecology of the ocean The function of bioluminescence in the oceans is more clearly understood in the context of the essentially dark environment below about 200 m The functions of bioluminescence are for: 1. Defence 2. Schooling of fish 3. Feeding 4. Communication (in the dark) 5. Mating
  9. 9. Use of bioluminescencein defence While many defensive techniques are produced, one of the most common is the "burglar alarm" technique In step one, small predator is feeding on its bioluminescent prey, when a larger predator swims near In step two, the prey uses its bioluminescence to attract the larger predator, resulting in the fleeing of the smaller predator
  10. 10. Use of bioluminescencefor mating There are some marine species that are sparsely populated, limiting the net reproduction that can occur Bioluminescence is one mechanism that would allow these species to increase their "perception distances It is believed that, the female emits a light of a specific wavelength to attract its mate, while avoiding the risk of being detected by a predator

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