callus, a small proportion of cells divided to give rise to an organogenesis (figure 1a, 1b and 1c).
Two types of embryogenic
calli have been described in maize culture.
But most importantly, ig1 is thought to be involved in the repression of the embryogenic
program in those cells that lack one of the two parental genomes.
Pixie was created, with the help of a University of California-Davis cooperator, by regenerating whole plants from embryogenic
cells of Pinot Meunier grapes.
This is obtained by "embryogenic
callus," and then is followed by the conversion of the embryogenic
cells into "somatic embryos," with the help of cell suspensions and temporary immersion bioreactors.
3-5,8,9) Although the exact mechanism behind it is unproven, assumptions are that the development of the ICA and the pituitary gland occur at approximately the 4th embryogenic
week, they, therefore, tend to be related.
These masses appear to share a similar embryogenic
origin; they occur when the neuroectodermal and ectodermal tissues fail to separate during the development of the nose.
cell clusters present in control cell suspensions were completely absent from RGD-treated cultures.
In parallel experiments with cotton, transformed embryogenic
callus cultures demonstrated antifungal activity against A.
calli were also produced from leaf and petiole segments for particle bombardment experiments.
This method involves bombarding the plants' embryogenic
calli with tiny gene-coated gold bullets.
ABA, used in plant tissue culture studies to suppress germination of embryos, enhances embryogenic
callus formation from explants.