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carbon fixation of conifers


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carbon fixation of conifers

Postby dae » Sat Aug 09, 2008 9:37 pm

What carbon fixation pathway do conifers use? Is it CAM? I haven't found an explicit answer yet.

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Re: carbon fixation of conifers

Postby F4T32008 » Sun Aug 10, 2008 3:26 am

CAM? day and night respiration?
I think conifers use C4 type.

But I'm not too sure... Maybe they are C4
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Postby MrMistery » Wed Aug 27, 2008 5:44 pm

Well, I don't know if you can say anything about all conifers, but certainly some use C3 metabolism. It would make no sense, for example, for a pine tree in Northern Russia to use the C4 pathway as the C4 pathway evolved as a pathway to reduce photorespiration when it's hot. But, as some conifers live in hot climates, it may be totally possible for some to have C4 metabolism. I know for sure that there is one(and only one) conifer that uses the CAM pathway: Welwishia.
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