PLANT CELL LINES AND METHODS OF ISOLATING THE SAME

摘要

An isolated plant cell having increased expression of one or more of a PXY and WOL nucleic acid molecule or polypeptide, a method of isolating a plant stem cell, a method of producing a plant-derived biologically active substance using the isolated plant stem cell are disclosed. The cells are undifferentiated, undergo self-renewal, proliferate, and have the ability to differentiate. Cultures of the plant cells minimize variation of cell growth and stably produce biologically active substances, even in long-term culture. Production of biologically active substances using the plant cells solves problems of dedifferentiated plant cell cultures, including decreased cell growth and decreased productivity during long term culture.