REJUVENATION OF SENESCENT CELLS OF SPONGIOCHLORIS TYPICA(2)
1Department of Botany, The University of Texas, Austin, Texas 78712.
Abstract:
Thick-walled, oil-filled akinetes of the green alga Spongiochloris typica, long in the stationary phase of growth, were transferred to fresh media. Ultra-structural changes were observed during a 51-hr period after transfer. Akinetes, when transferred to fresh media, may follow 1 of 3 pathways: 1 Remain unchanged; these cells appear to be moribund perhaps due to an over-accumulation of lipid. 2 Undergo immediate zoosporogenesis; seems to occur in cells with 4, 8, or more nuclei. 3 Return to the vegetative state; this was common in smaller cells with less than 4 nuclei; however, zoosporogenesis eventually did occur when 4, 8, or more nuclei were present.
Related Concept Videos
Replicative Cell Senescence
Replicative Cell Senescence
Renewal of Skin Epidermal Stem Cells
iPS Cell Differentiation
Somatic to iPS Cell Reprogramming
Tissue Renewal without Stem Cells
However, failure of such a system...


