<br><div><span class="gmail_quote">On 3/17/06, <b class="gmail_sendername">Rafal Smigrodzki</b> <<a href="mailto:rafal.smigrodzki@gmail.com">rafal.smigrodzki@gmail.com</a>> wrote:</span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Imagine engineering trees that would pipe the sugars they produce to a<br>structure at the base of the trunk, where they would be directly<br>connected to a network of pipes, collecting the raw material with<br>minimal effort, potentially for decades without any expenditure of
<br>labor. </blockquote></div><br>Interesting you should point this out. Its almost time to tap the maple trees for syrup here in northern New England... The system you describe is the general approach now used for "commercial" all "natural" maple syrup production (in contrast to most "maple" syrup one buys in the grocery store which is engineered with high fructose corn syrup). Presumably the relatively high cost of natural maple syrup is due in large part to the costs of installing and maintaining the piping network that is only used a few weeks out of the year. I don't see an easy way of solving that in most northern climates. Circulating antifreeze proteins in the sap might buy you a few more months but you ultimately aren't going to solve it until you engineer the 'sap' to have a very high ethanol content... And I suspect we can all imagine what kinds of problems that is likely to produce.
<br><br>(As I dread the concept of going into Boston on St. Patty's day...)<br>Robert<br><br>