Studies on the Biochemistry and Molecular Biology of Peroxidase Isoenzymes in Plants and Cell Suspension Cultures ofLupinus polyphyllus

Planta Medica ◽  
1990 ◽  
Vol 56 (06) ◽  
pp. 607-607
Author(s):  
R. Perrey ◽  
M. Wink
1976 ◽  
Vol 54 (16) ◽  
pp. 1857-1867 ◽  
Author(s):  
Paul G. Arnison ◽  
W. G. Boll

Cotyledon cell suspension cultures of Phaseolus vulgaris were grown in the presence and absence of the growth regulators (2,4-dichlorophenoxy)acetic acid (2,4-D) and kinetin. Peroxidase (EC 1.11.1.7) activity was at a minimum during the phase of cell division and at a maximum during the phase of cell expansion. Both the pattern and activity of peroxidase isoenzymes changed during the culture cycle.Cells cultured without growth regulators showed increased peroxidase activity and changed isoenzyme patterns. Certain peroxidase isoenzymes were only present or prominent during specific phases of the culture cycle.The electrophoretic mobilities of peroxidase isoenzymes detected in the medium were not the same as those of the cytoplasmic isoenzymes. Cell cultures grown with and without growth regulators showed different patterns of medium peroxidase activity.Results are discussed in relation to the correlation of peroxidase activity with cell wall expansion and the possible role of peroxidase in cell growth and differentiation.


1989 ◽  
Vol 44 (11-12) ◽  
pp. 931-936 ◽  
Author(s):  
Ralf Perrey ◽  
Marie-Theres Hauser ◽  
Michael Wink

Abstract , leaf protoplasts and cell suspension cultures of Lupinus polyphyllus and isolated vacuoles were studied for cellular and subcellular localization of peroxidase isoenzymes. Isoelectric focusing revealed 16 peroxidase isoenzymes. The basic peroxidase isoenzymes are predominantly localized in the vacuole and, to a minor degree, unbound in the intercellular space. The acidic isoenzymes are cell wall-bound in plants and not detectable in suspension-cultured cells. Large amounts (up to 11.0 U/ml) of a single basic isoenzyme are detectable in the spent medium of cell suspension cultures.


2011 ◽  
Vol 29 (6) ◽  
pp. 567-570
Author(s):  
Xiaohui XU ◽  
Wei ZHANG ◽  
Changhong YAO ◽  
Xupeng CAO ◽  
Song XUE

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