Secondary Cambium in Arborescent Monocots Stem

Arborescent monocots are the monocot plants that have a woody stem and exhibit secondary growth. The stem of arborescent monocots has a secondary cambium that contributes to secondary growth.

What is Secondary Cambium?

The secondary cambium is a lateral meristem that develops during secondary growth. It is a cylinder-shaped structure that grows in the hypodermal region of the stem. The secondary cambium produces secondary xylem towards the inside of the stem and secondary phloem towards the outside of the stem.

Arborescent Monocots Stem

The stem of arborescent monocots is woody and has a secondary cambium. The stem has a hypodermal region, which is the region below the epidermis. The secondary cambium grows in the hypodermal region of the stem.

Function of Secondary Cambium in Arborescent Monocots Stem

The secondary cambium contributes to secondary growth in arborescent monocots. It produces secondary xylem towards the inside of the stem, which helps in the transportation of water and minerals from the roots to the leaves. It also produces secondary phloem towards the outside of the stem, which helps in the transportation of food from the leaves to other parts of the plant.

Conclusion

In conclusion, the secondary cambium in arborescent monocots stem grows in the hypodermal region. It contributes to secondary growth by producing secondary xylem towards the inside of the stem and secondary phloem towards the outside of the stem.

In general, monocots lack cambium...thus secondary growth is not seen in them..but (1)It occurs in some arborescent monocots (e.g., Dracaena, Yucca, Agave) and storage roots (e.g., Beet, sweet potato). ...(2)In arborescent monocot stems, a secondary cambium grows in hypodermal region.It later forms conjunctive tissue and patches of meristematic cells. The meristematic patches grow into secondary vascular bundles.... Anomalous vascular bundles also occur in cortex (e.g., Ngctanthes) and pith (e.g., Boerhavia). In storage roots (e.g., Beet), accessory cambial rings appear on the outside of endodermis. They produce less secondary xylem but more secondary phloem.