PPOX

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AcronymDefinition
PPOXPolypropylene Oxide
PPOXProtoporphyrinogen Oxidase (gene)
PPOXPhenacylpyridinium Oxalate
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References in periodicals archive ?
Carfentrazone-ethyl acts by inhibiting a precursor of chlorophyll, protoporphyrinogen oxidase (Protox) (Dayan et al., 1997), which results in the accumulation of protoporphyrin IX (PpIX) in the cytosol (Jacobs & Jacobs, 1993).
The other 2 acute porphyrias arise from deficiencies later in the pathway: coproporphyrinogen oxidase in hereditary coproporphyria (HCP) and protoporphyrinogen oxidase in variegate porphyria (VP).
[4] During an acute attack, haem precursors accumulate in front of the deficient enzyme, which in AIP is porphobilinogen deaminase and in VP protoporphyrinogen oxidase. The excess porphyrin metabolites are then excreted in the urine and faeces according to a characteristic pattern.
One of the key steps in porphyrin synthesis is performed by an enzyme (protoporphyrinogen oxidase, or PPO), and its disruption can cause problems in plants and animals.
Carfentrazone-ethyl and saflufenacil (inhibitors of the enzyme protoporphyrinogen oxidase), paraquat (inhibitor of photosynthesis--Photosystem I) and diuron (inhibitor of photosynthesis--Photosystem II) are little mobile or immobile through the phloem, so that their actions are basically of contact (Grossmann et al., 2010; Oliveira Junior, 2011).
Plasma fluorescence scanning and fecal porphyrin analysis for the diagnosis of variegate porphyria: precise determination of sensitivity and specificity with detection of protoporphyrinogen oxidase mutations as a reference standard.
(7.) Hift RJ, Davidson BP, van der Hooft C, et al Plasma fluorescence scanning and fecal porphyrin analysis for the diagnosis of variegate porphyria: precise determination of sensitivity and specificity with detection of protoporphyrinogen oxidase mutations as a reference standard.
This has traditionally depended on analysis of metabolites in urine and feces with, more recently, measurement of protoporphyrinogen oxidase when these are uninformative.
Variegate porphyria (VP) (1) is the autosomal dominant disorder associated with deficiency of the enzyme protoporphyrinogen oxidase (PPOX), the penultimate enzyme of the heme synthetic pathway (1).
Variegate porphyria (VP) is characterized by decreased activity of protoporphyrinogen oxidase (PPOX), the penultimate enzyme in the heme biosynthetic pathway.
Coproporphyrinogen oxidase, protoporphyrinogen oxidase, and ferrochelatase activities were assayed using lymphocytes, according to the methods reported previously (13-15).