Question

Which of the following is the main effect of
cytokines in the tissue culture system?
A) Adventitious shoot formation
B) Induction of somatic embryos
C) Adventitious root formation
D) Shoot elongation​

Answer 1

Answer:

advention shoot formation

Answer 2

Answer:

The main effect of Cytokines in the tissue culture system is Adventitious shoot formation.

Explanation:

• An adventitious shoot is a kind of shoot that is not formed in its original location.  
• They are formed at the internodal parts of explants.
• They are formed as the shoot formation is dedifferentiation and redifferentiation of a few cells.  
• They can be generated directly from explants that contain phloem.
• They can be indirectly from the surface of the callus.
• Indirect shoot formation is more diverse than direct shoot formation.
• At times callus generates adventitious shoots after subcultures.
• Auxins are necessary for the formation of adventitious roots, whereas Cytokines are needed for the formation of adventitious shoots.
• Cytokines inhibit the growth of the roots, as they accelerate cell division and prevent differentiation.  

Hence, cytokines in the tissue culture system enhance the growth of the shoot.