What is an axillary meristem?

Abstract. Axillary meristems allow the production of secondary growth axes in the shoot systems of plants. As such they make a large contribution to the plastic developmental potential of plants, allowing them to alter their architecture to suit the prevailing environment conditions.

Is axillary bud apical meristem?

The apical meristem within the axillary bud remains inhibited as long as the shoot apex is intact and active. However, leaf initiation occurs during growth inhibition, and leaf primordia slowly accumulate in the axillary bud.

What is axillary in biology?

Axillary. (Science: biology) Located or growing from an axil.

What is the difference between apical meristem and axillary meristem?

During embryogenesis, the shoot apical meristem (SAM) and root apical meristem (RAM) are established in the shoot apex and root apex, respectively. Axillary meristems (AMs) form in the leaf axils to enable branching. During reproductive growth, the SAM transits into inflorescence meristem (IM).

What is the function of axillary buds?

Their main function is to provide support to the plant, holding leaves, flowers, and buds; in some cases, stems also store food for the plant. An axillary bud is usually found in the axil (the area between the base of a leaf and the stem) where it can give rise to a branch or a flower.

Who protects the axillary bud?

Typically, the leaf primordia of axillary buds like this develop into bud scales that envelop and protect the axillary bud meristem (the meristem is called the “axillary meristem” while small like this, and the “axillary bud apical meristem” once there are some leaves and stem, that is, once it is obviously a bud).

What is the difference between apical and axillary buds?

Apical buds occur at the end, or apex, of stems. Because of this location, they are also known as terminal buds. Axillary buds occur at a leaf node, which is where a leaf emerges from the stem of a stem.

What does the word axillary mean in medical terms?

armpit area
Listen to pronunciation. (AK-sih-LAYR-ee) Pertaining to the armpit area, including the lymph nodes that are located there.

What are the 3 types of meristems?

There are three primary meristems: the protoderm, which will become the epidermis; the ground meristem, which will form the ground tissues comprising parenchyma, collenchyma, and sclerenchyma cells; and the procambium, which will become the vascular tissues (xylem and phloem).

What is the function of axillary bud?

What is the difference between axillary bud and node?

Nodes are points of attachment for leaves, aerial roots, and flowers. An axillary bud is usually found in the axil (the area between the base of a leaf and the stem) where it can give rise to a branch or a flower. The apex (tip) of the shoot contains the apical meristem within the apical bud.

Why is axillary shoot preferred?

1. Mass propagation of plant species. The axillary bud proliferation method provides genetic stability to the plants and is the most preferred technique for the mass production of plants. For this reason, this technology is very popular to produce genetically stable true-to-type progenies.

Where are the axillary meristems established in a plant?

In seed plants, branching is achieved by axillary meristems, which are established in the axil of each leaf base and develop into lateral branches. Research into axillary meristem initiation has identified transcription factors and phytohormones as key regulators.

When does an axillary bud become a stem?

If the apical meristem is removed, or has grown a sufficient distance away from an axillary bud, the axillary bud may become activated (or more appropriately freed from hormone inhibition). Like the apical meristem, axillary buds can develop into a stem or flower.

What does the leaf primordia of an axillary bud do?

Typically, the leaf primordia of axillary buds like this develop into bud scales that envelop and protect the axillary bud meristem (the meristem is called the “axillary meristem” while small like this, and the “axillary bud apical meristem” once there are some leaves and stem, that is, once it is obviously a bud).

What’s the difference between an axillary bud and an apical bud?

Axillary bud is a lateral bud, which remains dormant under the influence of auxin produced by the apical meristem. It allows plants to develop branches. The main difference between apical bud and axillary bud is the location of each bud, their activity, and function.