RESPIROMETER FOR FLY LARVA

PradipG pradipg at aol.com
Fri Mar 29 15:50:35 EST 1996


We at Columbus Instruments developed RESPIROMETER that can measure oxygen
consumption and carbon dioxide production in a wide varieties of system
starting from bacteria to animals and even in humans. A study of the fly
larva, Sarcophaga Crassipalpis, during diapause was performed to detect
the
periodic changes in oxygen consumption which are characteristic of the
larva.
During diapause, the larva exhibits high rates of oxygen consumption on
some
days, and on the other days oxygen consumption drops to very low levels.
This
periodicity is approximately 4 days. The phenomenon was originally
demonstrated using a Scholander respirometer which permitted measurements
to
be made only once per day due to its lower sensitivity. Also, the
Scholander
respirometer is only able to measure oxygen consumption but not carbon
dioxide production. When the experiment was repeated using the Columbus
Instruments' RESPIROMETER, measurements were made 6 times per day rather
that
once per day. 
If you are interested please send e-mail or fax to the following address
for
getting further information.

PGHOS
Internet: 75144,2413 at Compuserve.com
Fax: 614-276-0529.



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