Plants derived from any form of cell culture involving the use of somatic plant cells.

Free from specified viruses based on tests designed to detect the presence of the organisms in question.

The process by which a cell monolayer or a plant explant is transferred, without subdivision, into fresh medium. (See also “Passage

A culture which is capable of only a limited number of population doublings after which the culture ceases proliferation. (See in vitro senescence

Variation in phenotype, either genetic or epigenetic in origin, expressed by gametoclones.

Plants regenerated from cell cultures derived from meiospores, gametes or gametophytes.

A cell possessing two or more genetically identical nuclei in a common cytoplasm, derived as a result of cell-to-cell fusion.

The acquisition, by cultured cells, of the property to form neoplasms, benign or malignant, when inoculated into animals. Many transformed cell populations which arise in vitro intrinsically or throug [..]

Propagation of plants in a controlled, artificial environment, using plastic or glass culture vessels, aseptic techniques and a defined growing medium.

A type of culture in which cells, or aggregates of cells, multiply while suspended in liquid medium.