Answer:root tips and germinating seeds
Explanation: cytokinesis is a plant hormone found in the growing parts of plants where it induces cell division.it does this by accelerating the events of the gap phase to get into the proper Division.As an hormone,it serves as specific chemical signals between cells.it is abundant in meristematic cells as those cells are always in a state of division.cytokinesis is involved in the enlargement of growing parts of plants as auxin are involved in the enlongation of growing parts.