Phenol oxidase activity of a monogenean, Paramazocraes thrissocles

1986 ◽  
Vol 60 (3) ◽  
pp. 234-238
Author(s):  
T. Thangaraj ◽  
A. Vinayakam ◽  
K. Nellaiappan
Keyword(s):  
Substrate Specificity ◽  
Metal Ions ◽  
Oxidase Activity ◽  
Phenol Oxidase ◽  
Maximum Activity ◽  
Ph Optimum ◽  
Phenol Oxidase Activity ◽  
Eggshell Formation ◽  
Chelating Compounds

AbstractThe phenol oxidase of a monogenean, Paramazocraes thrissocles, oxidizes phenolic amines more effectively than other phenols studied. Based on the substrate specificity, the probable substrate for eggshell formation has been suggested. The enzyme shows the pH optimum of 7–2. At 40°C it shows maximum activity. Proenzyme is activated by metal ions and detergents. Copper chelating compounds strongly inhibit the enzyme.

Microtopography Alters Hydrology, Phenol Oxidase Activity and Nutrient Availability in Organic Soils of a Coastal Freshwater Forested Wetland

Wetlands ◽  
2018 ◽  
Vol 39 (2) ◽  
pp. 263-273 ◽  
Author(s):  
Kevan J. Minick ◽  
Alexia M. Kelley ◽  
Guofang Miao ◽  
Xuefeng Li ◽  
Asko Noormets ◽  
...  
Keyword(s):  
Nutrient Availability ◽  
Oxidase Activity ◽  
Phenol Oxidase ◽  
Forested Wetland ◽  
Organic Soils ◽  
Phenol Oxidase Activity

scholarly journals Are colorimetric assays appropriate for measuring phenol oxidase activity in peat soils?

2017 ◽  
Vol 105 ◽  
pp. 108-110 ◽  
Author(s):  
Magdalena M. Wiedermann ◽  
Evan S. Kane ◽  
Timothy J. Veverica ◽  
Erik A. Lilleskov
Keyword(s):  
Oxidase Activity ◽  
Phenol Oxidase ◽  
Peat Soils ◽  
Phenol Oxidase Activity ◽  
Colorimetric Assays

Studies on the enzyme phenol oxidase in a freshwater monogenetic trematode

1986 ◽  
Vol 60 (3) ◽  
pp. 201-209 ◽  
Author(s):  
A. Bhagavathiammai ◽  
K. Ramalingam
Keyword(s):  
Protocatechuic Acid ◽  
Phenol Oxidase ◽  
Maximum Activity ◽  
Ph Optimum ◽  
Cytochemical Localization ◽  
Wide Range

AbstractCytochemical localization of the enzyme phenol oxidase inNeomurraytrema tengrahas been studied. Results reveal that the enzyme reacts with substrates such as catechol, hydroquinone, pyrogallol, dopa, doparmine, epinephrine and tyramine, but not with tyrosine and protocatechuic acid. Thus it shows activity with a wide range of phenols, aminated, mono and diphenols and also with deaminated and decarboxylated, di- and polyphenols. The maximum activity of the enzyme occurs between 40°C and 50°C with a pH optimum of 6–6.

ABTS assay of phenol oxidase activity in soil

2007 ◽  
Vol 71 (3) ◽  
pp. 319-324 ◽  
Author(s):  
Carine Floch ◽  
Enrique Alarcon-Gutiérrez ◽  
Stéven Criquet
Keyword(s):  
Oxidase Activity ◽  
Phenol Oxidase ◽  
Abts Assay ◽  
Phenol Oxidase Activity
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