Question

write a short note on concentric bundles​

Answer 1

Answer:

Concentric Bundle: A vascular bundle in which one type of vascular tissue surrounds the other is known as concentric bundle.

Depending on the number and position of phloem group, conjoint vascular bundles are of two types: collateral type and bi-collateral type. Collateral vascular bundles are very common type and seen in stems of dicotyledons except the members of Cucurbitaceae and some members of Convolvulaceae.

vascular bundles consisting of both phloem and xylem ensure connection between tumors and the rest of the host plant, thus enhancing water and solute transport.