Abstract
Abstract Application of 0.3-0.5 M Ca or 0.1−1.0 mM 2,4-D strongly inhibited russet spotting (RS) in iceberg lettuce ( Lactuca sativa L.) leaf tissues and significantly reduced extractable phenylalanine ammonia-lyase (PAL) activity. Since neither Ca nor 2,4-D reduced PAL activity in vitro, they may inhibit RS development by inhibiting in vivo PAL biosynthesis. Chemical names used: (2,4-dichlorophenoxy)acetic acid (2,4-D); and 1 H -indol-3-acetic acid (IAA).
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Claims 7
Claim · model-written summary
Ca at 0.3-0.5 M inhibited russet spotting in lettuce leaf tissue.
- Taxon
- iceberg lettuce ( Lactuca sativa L.)
Lactuca sativae0 - Organ / stage
- leaf tissuese0
- Treatment
- 0.3-0.5 M Cae0
- Outcome
- russet spotting (RS)e0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 0.3-0.5 M Ca or 0.1−1.0 mM 2,4-D strongly inhibited russet spotting (RS) in iceberg lettuce ( Lactuca sativa L.) leaf tissues”
Claim · model-written summary
2,4-D at 0.1−1.0 mM inhibited russet spotting in lettuce leaf tissue.
- Taxon
- iceberg lettuce ( Lactuca sativa L.)Lactuca sativae0
- Organ / stage
- leaf tissuese0
- Treatment
- 0.1−1.0 mM 2,4-De0
- Outcome
- russet spotting (RS)e0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 0.3-0.5 M Ca or 0.1−1.0 mM 2,4-D strongly inhibited russet spotting (RS) in iceberg lettuce ( Lactuca sativa L.) leaf tissues”
Claim · model-written summary
Ca reduced extractable PAL activity in lettuce leaf tissue.
- Taxon
- iceberg lettuce ( Lactuca sativa L.)Lactuca sativae0
- Treatment
- 0.3-0.5 M Cae0
- Gene
- phenylalanine ammonia-lyase (PAL)e0
- Outcome
- extractable phenylalanine ammonia-lyase (PAL) activitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 0.3-0.5 M Ca or 0.1−1.0 mM 2,4-D strongly inhibited russet spotting (RS) in iceberg lettuce ( Lactuca sativa L.) leaf tissues and significantly reduced extractable phenylalanine ammonia-lyase (PAL) activity”
Claim · model-written summary
2,4-D reduced extractable PAL activity in lettuce leaf tissue.
- Taxon
- iceberg lettuce ( Lactuca sativa L.)Lactuca sativae0
- Treatment
- 0.1−1.0 mM 2,4-De0
- Gene
- phenylalanine ammonia-lyase (PAL)e0
- Outcome
- extractable phenylalanine ammonia-lyase (PAL) activitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 0.3-0.5 M Ca or 0.1−1.0 mM 2,4-D strongly inhibited russet spotting (RS) in iceberg lettuce ( Lactuca sativa L.) leaf tissues and significantly reduced extractable phenylalanine ammonia-lyase (PAL) activity”
Claim · model-written summary
Ca did not reduce PAL activity in vitro.
Not reportedComparator
Verbatim
e0“neither Ca nor 2,4-D reduced PAL activity in vitro”
t0“Iceberg Lettuce”
Claim · model-written summary
2,4-D did not reduce PAL activity in vitro.
Not reportedComparator
Verbatim
e0“neither Ca nor 2,4-D reduced PAL activity in vitro”
t0“Iceberg Lettuce”
Claim · model-written summary
The authors propose that Ca and 2,4-D inhibit spotting by inhibiting PAL biosynthesis in vivo.
Verbatim
e0“they may inhibit RS development by inhibiting in vivo PAL biosynthesis”
t0“Iceberg Lettuce”
The same questions in other papers
calcium atom · physiology: antioxidant enzymes · Lactuca sativa (garden lettuce)Results agree
1 paper in the same direction as this paper
- positive
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.