Question

Axillary bud could be present in the axil of:
A) Simple leaf
B) Compound leaf
C) Modified leaf
D) Leaflet


a) A,B and D only
b) A, B, C only
c) C, D only
d) A, B, C, D

Answer 1

Hint: Axillary bud is present on citrus trees which may be modified leaves or young branches that developed from leaf stems. The axillary bud is a small, modified leaf that arises from callus tissue near a stem or root apex, usually in response to environmental stress such as drought or high salinity.

Complete step-by-step answer:
Compound leaves are the most diverse among the different types of leaves. They have many intricate layers and are composed of three or more leaflets. Modified leaves, on the other hand, have withered and wilted leaflets.
The axillary bud may be at the base of a simple leaf where the stem meets the leaf blade or in a whorl of five to six buds. A simple leaf is one without veins or lobes and has large, flat cells. An axillary bud is a modified stem that forms roots in the axil of a compound leaf. It has hardened and swollen cells, which are visible in the cut edges of the leaf. Axillary buds are modified leaves. They are usually located on the side of a leaf and produce their food by photosynthesis. Some plants have two types of branches- the main branch and these axillary buds. This branch has appeared in many plant families, including the genus Citrus (sour orange), with its thick, fleshy axillary buds that release essential oils.

Option A, B and C are correct.

Note: Axillary buds are on both sides of the axil, and a few help move small amounts of fluid. The Axillary bud, also called Caudal Bud or Dorsal Bud, is situated where the dorsal fin meets the body. It is on both sides of the axil (the end point where pelvic fins meet tail). The axillary bud is composed of many tiny flaps and helps propel a small amount of fluid between the pelvic fins and tail.