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November 19, 2001 / Monday
Word of the Day
photonasty
Usage example: Dat photo NASTY!
Just kidding. That's not it.
It's this:
See how the leaves are turned upward toward the light? That's photonasty, an adjustment of the plant body in response to light.
Oh, and that's different from phototropism, which is plant growth in a certain direction in response to light.
And for all you biological light response geeks out there, those are both different from phototaxis, which is movement of the entire organism in response to light. Needless to say, trees are not phototactic. Most plants aren't. Chlamydomonas are, though.
If you read the above and instantly understood why Chlamydomonas was italicized, then you are a truly geeky geek.
November 19, 2001 06:26 PM | Word