Abstract
Coleoptile sections of Avena sativa L. were pretreated with sodium fluoride or peroxyacetyl nitrate at levels which inhibit auxin-induced growth but did not affect glucose uptake or CO(2) production when postincubated for 30 minutes in a (14)C-glucose medium without auxin. Labeling of metabolites involved in cell wall synthesis was measured. Peroxyacetyl nitrate decreased labeling, and it was concluded that the pool size of uridine di-phosphoglucose, sucrose, and cell wall polysaccharides decreased compared to control. The changes suggest that peroxyacetyl nitrate inactivated sucrose and cell wall synthesizing enzymes including cellulose synthetase and decreased cell growth by inhibiting production of cell wall constituents. Fluoride treatment had no effect on production of cell wall polysaccharides, with or without indoleacetic acid stimulation of growth. The only change after fluoride treatment was a decrease in uridine diphosphoglucose during incubation without indoleacetic acid, a decrease that disappeared when indoleacetic acid was present. It was concluded that some other aspect of cell wall metabolism, not determined here, was involved in fluoride-induced inhibition of growth.
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Claims 10
Claim · model-written summary
Peroxyacetyl nitrate decreased labeling of Avena cell wall synthesis metabolites.
AvenaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxyacetyl nitrate decreased labeling, and it was concluded that the pool size of uridine di-phosphoglucose, sucrose, and cell wall polysaccharides decreased compared to control.”
t0“Avena”
Claim · model-written summary
Peroxyacetyl nitrate decreased the inferred Avena uridine diphosphoglucose pool.
- Treatment
- Peroxyacetyl nitratee0
- Outcome
- pool size of uridine di-phosphoglucosee0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxyacetyl nitrate decreased labeling, and it was concluded that the pool size of uridine di-phosphoglucose, sucrose, and cell wall polysaccharides decreased compared to control.”
t0“Avena”
Claim · model-written summary
Peroxyacetyl nitrate decreased the inferred Avena sucrose pool.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxyacetyl nitrate decreased labeling, and it was concluded that the pool size of uridine di-phosphoglucose, sucrose, and cell wall polysaccharides decreased compared to control.”
t0“Avena”
Claim · model-written summary
Peroxyacetyl nitrate decreased the inferred Avena cell wall polysaccharide pool.
- Treatment
- Peroxyacetyl nitratee0
- Outcome
- cell wall polysaccharides decreasede0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxyacetyl nitrate decreased labeling, and it was concluded that the pool size of uridine di-phosphoglucose, sucrose, and cell wall polysaccharides decreased compared to control.”
t0“Avena”
Claim · model-written summary
The authors suggest peroxyacetyl nitrate inactivated sucrose and cell wall synthesizing enzymes.
- Treatment
- peroxyacetyl nitratee0
- Gene
- cellulose synthetasee0
- Outcome
- inactivated sucrose and cell wall synthesizing enzymese0
- Qualifier
- inhibiting production of cell wall constituentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes suggest that peroxyacetyl nitrate inactivated sucrose and cell wall synthesizing enzymes including cellulose synthetase and decreased cell growth by inhibiting production of cell wall constituents.”
t0“Avena”
Claim · model-written summary
The authors suggest peroxyacetyl nitrate decreased Avena cell growth by inhibiting wall constituent production.
- Treatment
- peroxyacetyl nitratee0
- Outcome
- decreased cell growthe0
- Qualifier
- inhibiting production of cell wall constituentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes suggest that peroxyacetyl nitrate inactivated sucrose and cell wall synthesizing enzymes including cellulose synthetase and decreased cell growth by inhibiting production of cell wall constituents.”
t0“Avena”
Claim · model-written summary
Fluoride did not affect Avena cell wall polysaccharide production, with or without auxin.
- Treatment
- Fluoride treatmente0
- Outcome
- production of cell wall polysaccharidese0
- Direction
- no effecte0
- Qualifier
- with or without indoleacetic acid stimulation of growthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluoride treatment had no effect on production of cell wall polysaccharides, with or without indoleacetic acid stimulation of growth.”
t0“Avena”
Claim · model-written summary
Fluoride decreased Avena uridine diphosphoglucose without indoleacetic acid.
- Treatment
- fluoride treatmente0
- Outcome
- uridine diphosphoglucosee0
- Direction
- decreasee0
- Qualifier
- without indoleacetic acide0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The only change after fluoride treatment was a decrease in uridine diphosphoglucose during incubation without indoleacetic acid, a decrease that disappeared when indoleacetic acid was present.”
t0“Avena”
Claim · model-written summary
Indoleacetic acid removed the fluoride-related decline in Avena uridine diphosphoglucose.
- Treatment
- indoleacetic acide0
- Outcome
- decrease in uridine diphosphoglucosee0
- Direction
- disappearede0
- Comparator
- without indoleacetic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The only change after fluoride treatment was a decrease in uridine diphosphoglucose during incubation without indoleacetic acid, a decrease that disappeared when indoleacetic acid was present.”
t0“Avena”
Claim · model-written summary
The authors infer an undetermined wall metabolism aspect mediates fluoride growth inhibition.
- Treatment
- fluoridee0
- Outcome
- inhibition of growthe0
- Qualifier
- some other aspect of cell wall metabolism, not determined heree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was concluded that some other aspect of cell wall metabolism, not determined here, was involved in fluoride-induced inhibition of growth.”
t0“Avena”
The same questions in other papers
indole-3-acetic acid · molecular: metabolites · AvenaPositive and negative results
2 in the opposite direction
- no effect
- no effect
nitrogen · growth · AvenaPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.