Stimulation of root development on buckwheat thin cell-layer explants by pectic fragments from pea stem cell walls

1993 ◽  
Vol 12 (9) ◽  
Author(s):  
V.V. Lozovaya ◽  
O.A. Zabotina ◽  
N.I. Rumyantseva ◽  
R.G. Malihov ◽  
M.V. Zihareva
Keyword(s):  
Stem Cell ◽  
Root Development ◽  
Cell Walls ◽  
Cell Layer ◽  
Thin Cell Layer ◽  
Stimulation Of

The synaptic organization of optic afferents in the amphibian tectum

1974 ◽  
Vol 187 (1089) ◽  
pp. 421-447 ◽  
Keyword(s):  
Optic Nerve ◽  
Cell Layer ◽  
Maximum Amplitude ◽  
Synaptic Organization ◽  
Nerve Fibres ◽  
Synaptic Potentials ◽  
Postsynaptic Cell ◽  
Optic Fibre ◽  
Stimulation Of

Potentials in the amphibian tectum, evoked by stimulation of the optic nerve, were recorded extracellularly. Four discrete potentials, referred to as the m 1 , m 2 , u 1 and u 2 waves, occur at different latencies after stimulation. We have shown that these waves represent summed post-synaptic potentials generated by synchronous activation of four different groups of optic nerve fibres. The m 1 and m 2 waves are generated by two classes of myelinated optic nerve fibres, previously characterized as ‘dimming’ and ‘event’ fibres. The maximum amplitude of the m 2 wave occurs just below, and of the m 2 wave just above, cell layer 8 of P. Ramón. The u 1 and u 2 waves are generated by ‘edge’ and ‘convexity’ fibres, respectively. The maximum amplitude of the u 1 wave occurs near the surface of the tectum, and of the u 2 wave some 100 μm below it. Postsynaptic cell bodies for all four classes of optic fibre are located in layer 8.

scholarly journals Stimulation of migration of human monocytes by bacterial cell walls and muramyl peptides.

1982 ◽  
Vol 38 (3) ◽  
pp. 817-824 ◽  
Author(s):  
T Ogawa ◽  
S Kotani ◽  
K Fukuda ◽  
Y Tsukamoto ◽  
M Mori ◽  
...  
Keyword(s):  
Bacterial Cell ◽  
Cell Walls ◽  
Human Monocytes ◽  
Bacterial Cell Walls ◽  
Stimulation Of

Adhesion of the Boston ivy tendril

1977 ◽  
Vol 55 (8) ◽  
pp. 918-924 ◽  
Author(s):  
Anton G. Endress ◽  
William W. Thomson
Keyword(s):  
Cell Walls ◽  
Tactile Stimulation ◽  
Electron Microscopic Examination ◽  
Ruthenium Red ◽  
Contact Interface ◽  
Electron Microscopic ◽  
Colloidal Iron ◽  
Peripheral Cells ◽  
Adhesive Secretion ◽  
Stimulation Of

Tactile stimulation of Boston ivy tendrils results in the development of bilaterally symmetric discs which adhere to substrates in the vicinity of the tendrils. Our electron microscopic examination of the tendrils indicates that adhesive secretion occurs from the peripheral cells at the contact face of the discs. Cell walls in this region develop pockets which fill with adhesive and ultimately coalesce. In fully adherent discs, the adhesive occupies the region between the substrate and the cells as well as the intracellular regions between the peripheral cells. While a cuticle was present on immature discs, no cuticle-like material was observed at the contact interface of mature discs.Staining of the adhesive was enhanced by ruthenium red and potassium ferrocyanide treatments, and the adhesive bound both colloidal iron and thorium. These results indicated that the adhesive is possibly a mucopolysaccharide.

scholarly journals Mesenchymal Stem Cell Stimulation of Tissue Growth Depends on Differentiation State

2011 ◽  
Vol 20 (3) ◽  
pp. 405-414 ◽  
Author(s):  
Ashley R. Rothenberg ◽  
Lee Ouyang ◽  
Jennifer H. Elisseeff
Keyword(s):  
Stem Cell ◽  
Mesenchymal Stem Cell ◽  
Tissue Growth ◽  
Cell Stimulation ◽  
Stimulation Of

Effects of Chemical and Physical Shear-Stress Stimulation of Human Placenta-Derived Multipotent Stem Cells in Microchannel

2013 ◽  
Author(s):  
Chia-Wen Tsao ◽  
Meng-Zhi Chiang ◽  
Yu-Che Cheng
Keyword(s):  
Stem Cells ◽  
Shear Stress ◽  
Stem Cell ◽  
Human Placenta ◽  
Multipotent Stem Cells ◽  
Term Placenta ◽  
Stem Cell Source ◽  
Multipotent Cells ◽  
Cell Source ◽  
Stimulation Of

Multipotent cells obtain from human postpartum term placenta is an ethically conductive, easily accessible and high-yielding stem cell source. In this conference presentation, we demonstrate using microchannel platform to culture and differentiate the human placenta-derived stem cells. Both chemical and shear stress stimulation effects were investigated.

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