As water travels through the xylem in the stem and leaf, it is being replaced by water taken up by the roots. Photosynthesis produces glucose in the green parts of plants, which are often leaves.

After traveling from the roots to stems through the xylem, water enters leaves via petiole (i.e., the leaf stalk) xylem that branches off from that in the stem. Petiole xylem leads into the mid ...

Scientists have been working on special sensors that can detect different chemicals in the past ten years. One challenge has ...

The phloem is towards the centre, outside the xylem. Any green part of a plant above ground, where it is exposed to light, can photosynthesise. But a plant’s leaves are the main organ of ...

On the other hand, several investigators have concluded that, in rapidly transpiring plants, salt moves into the root xylem by mass flow as well as by active transport 4–6.

When and how cavitation occurs in the xylem is relevant as it directly impacts how well plants grow. During these studies, it was reported that the cavitation phenomenon creates an audible click ...