These are distributed differently in roots and stems. In the root, the xylem forms a central column. It forms a solid support. The phloem is towards the centre, outside the xylem. Any green part of a ...

Watch this video to discover how plants transport water in the xylem and sugars in the phloem to stay healthy. As water travels through the xylem in the stem and leaf, it is being replaced by water ...

Numerous insects and pathogens extract nutrients from phloem tissue buried deep inside plants. These phloem-feeding insects and pathogens cause tremendous economic losses worldwide and represent some ...