Question

What is cladode?

Answer 1

Cladodes are shoot systems in which leaves do not develop , rather the stem becomes flat and assumes the photosynthetic functions of the plant. In asparagus, the scales found in the on the asparagus Spears are the true leaves.

Complete step by step answer:
Cladodes are also known as cladophylls or phylloclades. If the thick, fleshy asparagus spears keep on developing, level, green, leaflike structures called cladodes create in the axils of the scale leaves. The presence of cladodes in irrelevant desert angiosperm families is a great case of joined advancement, or the autonomous improvement of a similar trademark in random taxa. cladodes are smoothed, photosynthetic shoots, which are normally viewed as adjusted branches. The two terms are utilized either distinctively or conversely by various creators. Phyllocladus, a variety of conifer, is named after these structures. Phylloclades/cladodes have been recognized in fossils dating from as right on time as the Permian. Hirayama et al. (2007) demonstrated that the phylloclade of Ruscus aculeatus "isn't homologous to either the shoot or the leaf, however that it has a twofold organ character," which implies that it consolidates shoot and leaf processes.Phylloclades additionally happen in Bryophyllum and Kalanchoe.

Note: All cacti have cladodes, and many desert members of spurge and milkweed families have similar vegetative morphologies that are derived by modifying different parts to look and function in the same way. Each of these plant groups have columnar , water storing green stems, reduced leaves and protective spines or thorns. In the cacti, the leaves on the main stems last for a very short time and the leaves of the axillary buds develop as spine.