Abstract
Experiments were conducted to determine the effect of 3-( m -trifluoromethylphenyl)-1,1-dimethylurea (fluometuron) and 2,4-bis(isopropylamino)-6-methylmercapto- s -triazine (prometryne) on oxygen consumption by mitochondria isolated from the hypocotyls of soybean ( Glycine max L., var. Lee) seedlings. Prometryne caused a decrease in second state 3 oxidation of both malate and succinate, but the decrease was overcome by 2,4-dinitrophenol (hereinafter referred to as DNP), indicating a response similar to that of oligomycin. Fluometuron caused an increase in second state 4 oxidation of both malate and succinate and overcame the inhibition of oxidative phosphorylation caused by oligomycin, indicating an uncoupling response similar to DNP. Fluometuron was also shown to reverse the inhibition of oxidative phosphorylation caused by prometryne. Concentrations of prometryne causing the 50% inhibitory response were somewhat higher than those reported for s -triazines on other tissues, while those for fluometuron were well within the inhibitory range reported for other substituted ureas.
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Claims 7
Claim · model-written summary
Prometryne decreased second state 3 oxidation of malate and succinate.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Prometrynee0
- Outcome
- second state 3 oxidation of both malate and succinatee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prometryne caused a decrease in second state 3 oxidation of both malate and succinate”
t0“Soybean”
Claim · model-written summary
DNP overcame the prometryne-associated decrease in oxidation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 2,4-dinitrophenole0
- Outcome
- decreasee0
- Direction
- overcomee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but the decrease was overcome by 2,4-dinitrophenol (hereinafter referred to as DNP)”
t0“Soybean”
Claim · model-written summary
Fluometuron increased second state 4 oxidation of malate and succinate.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Fluometurone0
- Outcome
- second state 4 oxidation of both malate and succinatee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluometuron caused an increase in second state 4 oxidation of both malate and succinate”
t0“Soybean”
Claim · model-written summary
Fluometuron overcame oligomycin inhibition of oxidative phosphorylation.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- inhibition of oxidative phosphorylatione0
- Direction
- overcamee0
- Qualifier
- oligomycine0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overcame the inhibition of oxidative phosphorylation caused by oligomycin”
t0“Soybean”
Claim · model-written summary
Fluometuron reversed prometryne inhibition of oxidative phosphorylation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Fluometurone0
- Outcome
- inhibition of oxidative phosphorylatione0
- Direction
- reversee0
- Qualifier
- prometrynee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluometuron was also shown to reverse the inhibition of oxidative phosphorylation caused by prometryne.”
t0“Soybean”
Claim · model-written summary
Prometryne concentrations causing 50% inhibition were higher than reported s-triazine values for other tissues.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- prometrynee0
- Outcome
- 50% inhibitory responsee0
- Direction
- highere0
- Value
- 50%e0
- Comparator
- s -triazines on other tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of prometryne causing the 50% inhibitory response were somewhat higher than those reported for s -triazines on other tissues”
t0“Soybean”
Claim · model-written summary
Fluometuron concentrations fell within the reported inhibitory range for other substituted ureas.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- fluometurone0
- Outcome
- inhibitory rangee0
- Comparator
- other substituted urease0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those for fluometuron were well within the inhibitory range reported for other substituted ureas.”
t0“Soybean”