Cellular Question

Joined
Apr 3, 2003
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58
Can someone define the difference between (forgive my spelling) a Chromatophore, Iridophore, and Photophore? Thanks!

Octomatt
 

OB

Colossal Squid
Staff member
Moderator
Joined
Oct 19, 2003
Messages
3,108
Hi there Matt,

In all three the phore bit is derived from the Greek "Phoros" (bearing) and its derived verb "Pherein" (to carry).

Chromatophores are cells carrying pigments, from the Greek "chroma", for colour.

Iridophores are iridescent or reflective pigment cells containing guanidine-based reflective platelets. "Irid" or "Iris" stems from the Latin but ultimately Greek word for rainbow.

Photophores are not cells, but rather light-producing organs found especially in marine animals that emit light from specialized structures or derive light from symbiotic luminescent bacteria. Photo stems from the Greek "Phos" or "Phot" for light.

I hope that helps :grad: :wink:
 

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