Team:Cambridge/Bioluminescence/Background

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(Natural bioluminescent bacteria)
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=Natural bioluminescent bacteria=
=Natural bioluminescent bacteria=
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<strong>Bioluminescence</strong> is a trait found in a number of marine bacteria.  Some strains use their ability to emit light to form symbiotic relationships.  A number of deep sea fish and squids have specialised <em>light organs</em> which harbour populations of bacteria which help their hosts by emitting light.  One such example is the partnership between the Hawaiian Bobtail squid <em>(Euprymna scolopes)</em> and the bacterium <em>Vibrio fischeri</em>. At night squid hunt high in the water column, attacking from above.  Vibrio Fischeri is usually found in symbiosis with the Hawaiian Bobtail Squid. The squid uses the light produced by its symbionts to hide its own shadow it casts when hunting in top waters in clear moonlit nights. An elaborate light sensing and shutter system adjusts the light output to the light that falls on the squid back. Other bioluminescent bacterial species can differ markedly in their lifestyles. Vibrio Harveyi is a free living marine bacterium, while Xenorhabdus luminescens is a symbiont of terrestrial nematodes.  
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<strong>Bioluminescence</strong> is a trait found in a number of marine bacteria.  Some strains use their ability to emit light to form symbiotic relationships.  A number of deep sea fish and squids have specialised <em>light organs</em> which harbour populations of bacteria which help their hosts by emitting light.  One such example is the partnership between the Hawaiian Bobtail squid <em>(Euprymna scolopes)</em> and the bacterium <em>Vibrio fischeri</em>. At night squid hunt high in the water column, attacking from above.  Vibrio Fischeri is usually found in symbiosis with the Hawaiian Bobtail Squid. The squid uses the light produced by its symbionts to hide the shadow it casts when hunting in top waters in clear moonlit nights. An elaborate light sensing and shutter system adjusts the light output to the light that falls on the squid back. Other bioluminescent bacterial species can differ markedly in their lifestyles. Vibrio Harveyi is a free living marine bacterium, while Xenorhabdus luminescens is a symbiont of terrestrial nematodes.  
==The Lux System==
==The Lux System==

Revision as of 16:39, 23 October 2010