HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a hair-like appendage for protection, secretion, and others?
A
Thorns
B
Trichomes
C
Sclereids
D
Fibers
Explanation: 

Detailed explanation-1: -Trichomes are also known as epidermal hairs, which is self-explanatory. These appendages are found on the surfaces of parts that are exposed to the air. Their function is to protect the plants from all kinds of stresses including water loss, high temperatures, defence against insect pests, and even pathogens.

Detailed explanation-2: -Broadly, trichomes can be classified into glandular (presence of glandular head) and non-glandular (absence of glandular head) (Werker 2000). Both glandular (Tang et al. 2020) and non-glandular (Karabourniotis et al.

Detailed explanation-3: -Virtually all plant species possess some kind of hair-like epidermal structures. When these structures are present on the aerial parts of a plant, they are commonly referred to as trichomes, while similar outgrowths from the root are called root hairs.

Detailed explanation-4: -Glandular trichomes Their function is to secrete metabolites for the plant. Some of these metabolites include: terpenoids, which have many functions in the plant related to growth and development.

Detailed explanation-5: -Trichomes is a tiny glandular hair or other protrusion from a plant’s epidermis. Glandular trichomes are epidermal appendages found on many plants’ stems and leaves.

There is 1 question to complete.