Shoot tip culture is an example of:
Shoot tip culture qualifies as organ culture because explant retains organized structure of shoot apical meristem plus one to three leaf primordia and continues organized growth maintaining polarity and tissue layer arrangement tunica corpus. Unlike callus culture where organization is lost into unorganized parenchyma, or cell suspension where aggregates disperse in liquid agitation, or protoplast culture where wall removed exposing naked membrane, shoot tip preserves defined zonation central zone peripheral zone rib meristem and procambium differentiation pathway. Culture on hormone balanced
Ref: George et al., Plant Propagation Tissue Culture Vol1; Hartmann organ culture.
