Callus formation from single protoplasts of petunia.
D002454:Cell Differentiation; D002455:Cell Division; D002467:Cell Nucleus / Q000378:metabolism; D002478:Cells, Cultured; D003470:Culture Media; D059828:Plant Cells; D010944:Plants / Q000378:metabolism*; D011523:Protoplasts / Q000378:metabolism*
D003470:Culture Media