What Hormones are Necessary for Maintenance of Plant Tissue Culture

Question

What hormones are necessary for maintenance of plant tissue culture?
A) gibberellins and ABA
B) gibberellins and cytokinin
C) auxin and cytokinin
D) gibberellins and auxin
E) auxin and ABA

Accepted Answer

Auxin and cytokinin are essential hormones for maintenance of plant tissue culture as they promote cell division and stimulate root and shoot formation. Gibberellins and ABA have specific functions such as elongation of stems and dormancy induction respectively but are not as necessary for tissue culture maintenance.