Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  PEROXIDASE
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1

Variability of cathodic peroxidases in sugar beet (Beta vulgaris L.) cultivars

100%
Kolodziejczak M., Krzakowa M.
Journal of Applied Genetics
|
2003
|
vol. 44
|
issue 1
55-62
EN
Eighteen varieties of sugar beet (Beta vulgaris L.), originating from various European countries, were compared in respect of peroxidase variability level. They were cultivated in the same experimental plot. The cultivars differed in ploidy level: one variety was tetraploid, three were diploid and 14 varieties were triploid. The cathodic peroxidase system is controlled by four independent genes, of which only one is polymorphic. Consequently, the varieties were characterised by frequencies of 3 allozymes belonging to one locus. Only one variety proved to be fully monomorphic. Genetic similarities between the cultivars were illustrated by a dendrogram (UPGMA) and show different groups of varieties not related to their ploidy level.
2

Differential peroxidase activity in the thyroid gland and oviduct of a wild avian species, the tree pie (Dendrocitta vagabunda)

100%
Chaundhuri S., Maiti B. R.
Folia Biologica
|
1997
|
vol. 45
41-46
EN
The aim of the present investigation was to study peroxidase activity in different subcellular fractions of thyroid and oviduct and to ascertain whether there is any difference between the two sexes of peroxidase activity of the thyroid gland or between the thyroid and oviduct of a wild avian species, the tree pie (Dendrocitta vagabunda). Peroxidase activity was maximum in the soluble supernatant fraction of both the tissues with acetate buffer at pH 5.5, but the enzyme activity was highest even in low concentration of the substrate (H2O2) in the thyroid gland. Thiourea, thiouracil and azide inhibited enzyme activity in both thyroid and oviduct. While ascorbic acid inhibited peroxidase activity in the thyroid gland, it stimulated in the oviduct. Moreover, the enzyme activity was maximally inhibited by ascorbic acid in the thyroid and by thiourea in the oviduct. Peroxidase activity was highest with NAD+ in the thyroid and cytochrome C in the oviduct. Peroxidase activity was higher in females. It is suggested that avian thyroid/oviduct peroxidase activity may differ somewhat from that of mammals and possibly also in the peroxidase activity between the thyroid and oviduct of the tree pie.
3

Lignin - distribution, biosynthesis, preparation and structure

75%
Leonowicz A., Rogalski J., Wojtas-Wasilewska M., Luterek J.
Biotechnologia
|
1995
|
issue 1
158-175
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.