Figure 1: Phloem and xylem transport in plants. Plants possess different transport systems that can be classified according to the distance and the direction of transport. To assure that the ...

One goes up... and one goes down. I was a college freshman in Botany 101 when I first learned about xylem and phloem, the two transport tissues which carry water and nutrients up and down a tree's ...

Sieve elements are a key component of phloem, the conductive tissue through which plants transport carbohydrates and a wide range of signalling molecules. Elongated cylindrical cells are capped at one ...

Mature sieve tubes were located in inhibited cotyledonary buds of soybean plants. They were connected to the phloem system of the stem and were shown to be functional by observing their ability to ...