Re: [OM] phototaxis

[gwsears]

On 4 May 2001, at 21:04, Thomas H Hogan wrote:

From:           	"Thomas H Hogan" <flzhgn@xxxxxxxxxxxxxx>
To:             	<rggriesphoto@xxxxxxxxxxx>
Copies to:      	<olympus@xxxxxxxxxxxxxxx>
Subject:        	[OM] phototaxis
Date sent:      	Fri, 4 May 2001 21:04:12 -0700
Send reply to:  	olympus@xxxxxxxxxxxxxxx

> The movement of plants toward a light source is called phototaxis.
> 
> -- Hank
> 

Another new word ;-)

Photomovement. Photomovement involves any light-mediated behavior  that results in movement of an organism. A common example is the  bending of plants toward a light source. Some flowers, such as the  sunflower, move to face the sun throughout the day. Organisms that can  move about can respond to light by moving either toward or away from  the source. This ability can be ecologically important, as when it enables  photosynthetic organisms to move into a favorably lighted environment.  Such responses depend upon the organism being able to determine the  intensity and direction of light. Some organisms use the sun as a  directional compass for migration (European starling) or food gathering  (honeybee

GeoW


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