Sap is the sticky substance you see oozing out of tree trunks, and many varieties are edible. Here's what to know about eating sap, plus the risks and benefits.

This is a preview. Log in through your library . Abstract Phloem loading in source leaves is a key step for carbon partitioning and passive symplastic loading has been proposed for several tree ...

• A robust understanding of phloem functioning in tall trees evades us because current methods for collecting phloem sap do not lend themselves to measuring actively photosynthesizing canopy leaves. • ...