The more common types of rhizomes are rather fleshy due to the storage of much, food material. An apical bud gives rise to the annual shoot which dies at the close of the season leaving a scar while the rhizome continues its growth by a lateral bud .

Aerial stem modifications are modifications to the aerial stems, [1] vegetative buds and floral buds of plants growing in different conditions and which perform functions such as climbing, protection, support, synthesis of food, or vegetative propagation.

Some underground modified stems are as: 1. Rhizome: It is fleshy, non-green underground stem. It has distinct nodes and internodes. The nodes bear dry scale leaves with axillary buds. Terminal buds also present. Adventitious roots arise from the lower side.

Mar 23, 2020 · Plant stems are no different. A bulb is a plant with an underground highly condensed discoid stem surrounded by fleshy leaves or leaf bases that store food. A bulbil is an aerial stem modification that develops from the axillary bud of a plant or in place of an inflorescence or flower.

When axillary bud becomes fleshy and rounded due to storage of food, it is called bulbils. It gets detached from the plant, falls on ground and develops into a new plant, - e.g. Dioscorea 2. Sub-Aerial Modification

In Opuntia the flattened, thick and fleshy stem is segmented or jointed (Fig. 5.48). Each segment develops in the axil of a caducous leaf which falls down and leaves behind a scar. The segment may possess flowers and fruits.

Aerial Modifications of Stem. The stems are modified into aerial forms to perform important functions such as climbing, food storage, vegetative propagation, and protection. The stem modifications are as follows: Stem Tendrils. The stem gets modified into a threadlike leafless structure called tendrils. These are meant for climbing.

Aerial stem modification occurs under unfavourable conditions and performs some crucial functions, such as providing support, protection, synthesis of food and storage of food. Some common aerial stem modifications are tendrils, phylloclade, cladodes, bulbil and thorns.

Sep 3, 2024 · • Structure: The cladodes are flattened and fleshy, while the phylloclades are cylindrical and non-fleshy. • Function: While both have been used for the purpose of photosynthesis, the former is more suited to the needs of water conservation.

Dec 17, 2021 · The stem modification that has enlarged fleshy leaves emerging from the stem or surrounding the base of the stem is called a bulb; it is also used to store food. Aerial modifications of stems include tendrils, thorns, bulbils, and cladodes..