Abstract
Abstract The effect of acifluorfen and oxyfluorfen on chlorophyll bleaching, lipid peroxidation and photosynthesis in pea leaf discs was studied. Both her‐ bicides induced light‐dependent bleaching and lipid peroxidation, the level of damage being greater at higher light intensities. Photosynthetic carbon dioxide fixation was only partially inhibited in treated leaf discs incubated in darkness, thus indicating that these herbicides did not inhibit photo‐ synthesis as a primary mode of action. Leaf discs maintained in darkness showed no visible signs of injury, and light‐dependent herbicide‐induced damage was reduced by incubating discs under nitrogen, orpre‐incubating them with the electron‐transport inhibitor monuron. It is suggested that acifluorfen and oxyfluorfen are activated by a light‐dependent process, which requires photosynthetic electron transport.
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Claims 8
Claim · model-written summary
Both herbicides induced light dependent chlorophyll bleaching in pea leaves.
- Taxon
- pea
Lathyrus oleraceuse1 - Treatment
- her‐ bicidese0
- Outcome
- bleachinge0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both her‐ bicides induced light‐dependent bleaching and lipid peroxidation”
e1“pea leaf discs”
Claim · model-written summary
Both herbicides induced light dependent lipid peroxidation in pea leaves.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- her‐ bicidese0
- Outcome
- lipid peroxidatione0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both her‐ bicides induced light‐dependent bleaching and lipid peroxidation”
e1“pea leaf discs”
Claim · model-written summary
Damage increased at higher light intensity.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- higher light intensitiese0
- Outcome
- damagee0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the level of damage being greater at higher light intensities”
e1“pea leaf discs”
Claim · model-written summary
Photosynthetic carbon dioxide fixation was only partially inhibited in treated leaf discs in darkness.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- treated leaf discse0
- Outcome
- Photosynthetic carbon dioxide fixatione0
- Direction
- partially inhibitede0
- Setting
- darknesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthetic carbon dioxide fixation was only partially inhibited in treated leaf discs incubated in darkness”
e1“pea leaf discs”
Claim · model-written summary
Leaf discs kept in darkness had no visible injury.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- darknesse0
- Outcome
- visible signs of injurye0
- Direction
- no visiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf discs maintained in darkness showed no visible signs of injury”
e1“pea leaf discs”
Claim · model-written summary
Nitrogen incubation reduced light dependent herbicide damage.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- incubating discs under nitrogene0
- Outcome
- herbicide‐induced damagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“light‐dependent herbicide‐induced damage was reduced by incubating discs under nitrogen”
e1“pea leaf discs”
Claim · model-written summary
Monuron preincubation reduced light dependent herbicide damage.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- orpre‐incubating them with the electron‐transport inhibitor monurone0
- Outcome
- herbicide‐induced damagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“light‐dependent herbicide‐induced damage was reduced by incubating discs under nitrogen, orpre‐incubating them with the electron‐transport inhibitor monuron”
e1“pea leaf discs”
Claim · model-written summary
The authors suggest herbicide activation requires light dependent photosynthetic electron transport.
- Taxon
- peaLathyrus oleraceuse1
- Outcome
- activatede0
- Qualifier
- light‐dependent processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acifluorfen and oxyfluorfen are activated by a light‐dependent process, which requires photosynthetic electron transport”
e1“pea leaf discs”
The same questions in other papers
nitrogen · pest · Lathyrus oleraceus (pea)Positive and negative results
2 in the opposite direction
- no effect
- 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.