hajtáscsúcsmerisztémában

The term "hajtáscsúcsmer" is a Hungarian compound word referring to the growing tip of a plant shoot. It is a crucial region of active cell division and differentiation responsible for the plant's primary growth in length. This meristematic tissue is located at the apex of stems and developing leaves.

The hajtáscsúcsmer contains several distinct zones. Closest to the tip is the tunica, which forms the outer layers of the stem, and the corpus, which contributes to the inner tissues. Beneath these lies the meristem proper, where cells are actively dividing. Further down, cells begin to differentiate into specialized tissues such as vascular tissue (xylem and phloem) and ground tissue.

This apical meristem is responsible for producing new leaves, buds, and stem elongation. It is also involved in the development of floral structures. Hormones, particularly auxins produced in the hajtáscsúcsmer, play a significant role in regulating its growth and development, influencing processes like apical dominance, where the terminal bud inhibits the growth of lateral buds. Understanding the structure and function of the hajtáscsúcsmer is fundamental to plant biology and has implications for agriculture and horticulture.