scholarly journals Partial Synchronization of Cell Division and Micronucleation in Suspension-cultured Cells of Hemerocallis hybrida: The effects of Hydroxyurea and Various Spindle Toxins.

2001 ◽  
Vol 51 (4) ◽  
pp. 285-291 ◽  
Author(s):  
Hiroyuki Saito ◽  
Masaru Nakano
1979 ◽  
Vol 21 (1) ◽  
pp. 51-56 ◽  
Author(s):  
F. J. Novák ◽  
Květuše Schwammenhöferová ◽  
Jarmila Čihalíková ◽  
M. Ondřej

1986 ◽  
Vol 41 (5-6) ◽  
pp. 529-531 ◽  
Author(s):  
Hiroshi Ashihara

The level of fructose-2,6-bisphosphate (F2,6BP), a potent regulator of carbohydrate metabolism , varied from 23 to 448 pmol·g fresh weight-1 during the growth of the cells of Catharanthusroseus in suspension culture. The maximum F2,6BP level was found in the cells at the lag phase of the growth, and its level decreased with cell division and enlargement.


1992 ◽  
Vol 84 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Stephen P. Lee ◽  
Baolong Zhu ◽  
Tony H. H. Chen ◽  
Paul H. Li

2020 ◽  
Author(s):  
Ian Sims ◽  
K Middleton ◽  
AG Lane ◽  
AJ Cairns ◽  
A Bacic

Microscopic examination of suspension-cultured cells of Phleum pratense L., Panicum miliaceum L., Phalaris aquatica L. and Oryza sativa L. showed that they were comprised of numerous root primordia. Polysaccharides secreted by these suspension cultures contained glycosyl linkages consistent with the presence of high proportions of root mucilage-like polysaccharides. In contrast, suspension-cultured cells of Hordeum vulgare L. contained mostly undifferentiated cells more typical of plant cells in suspension culture. The polysaccharides secreted by H. vulgare cultures contained mostly linkages consistent with the presence of glucuronoarabinoxylan. The soluble polymers secreted by cell-suspension cultures of Phleum pratense contained 70% carbohydrate, 14% protein and 6% inorganic material. The extracellular polysaccharides were separated into four fractions by anion-exchange chromatography using a gradient of imidazole-HCl at pH 7.0. From glycosyl-linkage analyses, five polysaccharides were identified: an arabinosylated xyloglucan (comprising 20% of the total polysaccharide), a glucomannan (6%), a type-II arabinogalactan (an arabinogalactan-protein; 7%), an acidic xylan (3%), and a root-slime-like polysaccharide, which contained features of type-II arabinogalactans and glucuronomannans (65%).


2020 ◽  
Author(s):  
Ian Sims ◽  
K Middleton ◽  
AG Lane ◽  
AJ Cairns ◽  
A Bacic

Microscopic examination of suspension-cultured cells of Phleum pratense L., Panicum miliaceum L., Phalaris aquatica L. and Oryza sativa L. showed that they were comprised of numerous root primordia. Polysaccharides secreted by these suspension cultures contained glycosyl linkages consistent with the presence of high proportions of root mucilage-like polysaccharides. In contrast, suspension-cultured cells of Hordeum vulgare L. contained mostly undifferentiated cells more typical of plant cells in suspension culture. The polysaccharides secreted by H. vulgare cultures contained mostly linkages consistent with the presence of glucuronoarabinoxylan. The soluble polymers secreted by cell-suspension cultures of Phleum pratense contained 70% carbohydrate, 14% protein and 6% inorganic material. The extracellular polysaccharides were separated into four fractions by anion-exchange chromatography using a gradient of imidazole-HCl at pH 7.0. From glycosyl-linkage analyses, five polysaccharides were identified: an arabinosylated xyloglucan (comprising 20% of the total polysaccharide), a glucomannan (6%), a type-II arabinogalactan (an arabinogalactan-protein; 7%), an acidic xylan (3%), and a root-slime-like polysaccharide, which contained features of type-II arabinogalactans and glucuronomannans (65%).


2002 ◽  
Vol 43 (11) ◽  
pp. 1314-1322
Author(s):  
Tsuneo Hakoyama ◽  
Tadashi Yokoyama ◽  
Hiroshi Kouchi ◽  
Ken-ichi Tsuchiya ◽  
Hisatoshi Kaku ◽  
...  

1982 ◽  
Vol 9 (3) ◽  
pp. 297 ◽  
Author(s):  
PJ Larkin ◽  
W Scowcroft ◽  
AE Geissler ◽  
GF Katekar

The phytotropins l-(2'-carboxyphenyl)-3-phenylpropane-1,3-dione (CPP) and 5-(2-carboxyphenyl)- 3-phenylpyrazole (CPD) reduced the net efflux of radiolabel from suspension-cultured cells treated with [14C]2,4-dichlorophenoxyacetic acid when present at concentrations comparable to those that inhibit polar transport of auxins in bean petioles. These phytotropins stimulated division of protoplasts of both Nicotiana debneyi and Petunia hybrida at concentrations of exogenous auxins that were otherwise suboptimal for divisions. The results are consistent with the proposal that phytotropins interact with specific receptors to reduce auxin efflux, resulting in increased intracellular auxin concentrations.


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