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callus cells
Light and Nitrate Utilization by Soybean Callus Cells
      
We studied the role of light during exogenous assimilation of nitrate (the only source of nitrogen) by the callus cells of soybean (Glycine max).
      
The experimental results obtained were used to determine the possible causes of the heterogeneity of callus cells as regards their anoxia resistance.
      
In the SA-treated infected calli, the formation of necrotic lesions was observed in the zones of contact of the fungal mycelium with callus cells that limited pathogen growth.
      
Light and electron microscopic examinations revealed a large number of intracellular prismatic-shaped Ca oxalate crystals in both leaf and callus cells.
      
Biochemical evaluation of the morphogenetic potential of wheat callus cells in vitro
      
The Rht genetic system was found to affect the level of PAIC in the wheat callus cells during callus formation and subsequent regeneration.
      
8 d after grafting, a great number of callus cells were produced from the cortex and phloem, while callus bridges linking the stock with scion formed between the callus cells of the graft partners from the cortex.
      
officinale callus cells and a regulatory system counterbalances the ratio of shikalkin to polyphenolic acids.
      
The scope of this work is to review the state of the art in bioprocessing technologies pertinent to the secondary metabolite production from suspension cultures of callus cells.
      
Expression of osteoblastic markers in cultured human bone and fracture callus cells
      
Adult osteoblasts and all callus cells produced almost exclusively type I collagen, whereas fetal osteoblasts produced also considerable amounts of type III collagen in vitro.
      
1,25-Dihydroxyvitamin D3 induced the synthesis of osteocalcin in all bone and callus cells but to varying extents.
      
Fetal bone cells and early-stage callus cells synthesized less than 10% the amount of osteocalcin produced by adult bone cells.
      
Late-stage callus cells produced intermediate levels of osteocalcin.
      
Fetal bone cells and early-stage callus cells responded to parathyroid hormone with a less pronounced increase in intracellular cAMP than did adult bone cells.
      
Late-stage callus cells showed the best response to parathyroid hormone.
      
In potato (Solanum tuberosum) instabilities in nuclear DNA content in callus cells of a monohaploid and a dihaploid and in tuberprogenies of a regenerated, doubled dihaploid plant were assessed by cytophotometry in isolated, purified protoplasts.
      
A prolonged exposure of callus to the salt environment led to discolouration and arrested growth in the majority of the calli and only a small number of callus cells maintained healthy and stable growth.
      
Flow cytometric analysis was also used to measure changes in ploidy levels of callus cells following treatments.
      
 

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