Oz at upthorpe.demon.co.uk
Fri Feb 13 18:17:37 EST 1998
In article <6c2e2t$3nu$1 at mark.ucdavis.edu>, Kitty <kcheng at ucdavis.edu>
>If pineapples are not C3 nor C4 plants . . . are they CAM plants? It has to
>be one of the three I think. CAM plants can temporarily separate their
>reactions. They fix their carbon dioxide into malic acid at night. Then
>during the day, the carbon dioxide is released from the malic acid and then
>fixed via the normal C3 route.
<Somewhat intoxilificated by a cuple botts good beaujolais>
Oh, the same one that cacti use. Neat. Actually, isn't this merely a
retarded version of c3 designed to conserve water by allowing the
stomata to be closed during the day, and open at night (to collect CO2)?
I must say I thought pineapples were related to rainforest ephiphytes
and I am surprised that they needed an H20 conserving pathway. Still, I
suppose it gets quite dry on a rainforest tree in the dry season.
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