Abstract
As the seedling primary root of maize inbred W64A elongates, basal and augmented K + ( 86 Rb) uptake rates increase in regions increasingly distant from the apex and in regions at a fixed distance from the advancing apex. The pH-dependent process of augmentation requires aeration, begins without a lag period at pH 6, and is linear for 90 to 120 min. The augmentation potential of W64A(N) midzone root segments is minimal at 0.5 mM external K + concentration and increases toward higher and lower external K + concentrations. Augmentation is prevented at pH 4 in the Texas cytoplasmic male-sterile (T) version of inbred W64A but not in the male-fertile (N) version.Protein synthesis is required for development of K + ( 86 Rb) uptake augmentation and probably also for maintenance of the augmented rate after development but apparently not for its expression. Inhibition of the maintenance of the augmented rate by low concentrations of chloramphenicol or cycloheximide does not prevent subsequent augmentation in their absence.Augmentation of amino acid uptake is not inhibited by 100 μg/ml chloramphenicol or 10 μg/ml cycloheximide, but augmentation of amino acid incorporation is inhibited by each. Augmentation of amino acid influx is sensitive to the toxin of Helminthosporium maydis, race T, in T roots but not in N roots, whereas augmentation of amino acid incorporation is only slightly more toxin-sensitive in T than in N root segments.
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Claims 12
Claim · model-written summary
In the maize primary root, basal and augmented K+ (86Rb) uptake rates increase in regions farther from the apex and at a fixed distance from the advancing apex as the root elongates.
- Material
- W64Ae1
- Organ / stage
- seedling primary roote1
- Outcome
- basal and augmented K + ( 86 Rb) uptake ratese1
- Direction
- increasee1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“As the seedling primary root of maize inbred W64A elongates, basal and augmented K + ( 86 Rb) uptake rates increase in regions increasingly distant from the apex and in regions at a fixed distance from the advancing apex”
Claim · model-written summary
The pH-dependent augmentation process requires aeration, begins without a lag at pH 6 and is linear for 90 to 120 min.
- Outcome
- augmentatione1
- Qualifier
- requires aeration, begins without a lag period at pH 6, and is linear for 90 to 120 mine1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“The pH-dependent process of augmentation requires aeration, begins without a lag period at pH 6, and is linear for 90 to 120 min”
Claim · model-written summary
The augmentation potential of W64A(N) midzone root segments is minimal at 0.5 mM external K+ and increases toward higher and lower concentrations.
- Material
- W64A(N)e1
- Organ / stage
- midzone root segmentse1
- Outcome
- augmentation potentiale1
- Qualifier
- minimal at 0.5 mM external K + concentratione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“The augmentation potential of W64A(N) midzone root segments is minimal at 0.5 mM external K + concentration and increases toward higher and lower external K + concentrations”
Claim · model-written summary
Augmentation is prevented at pH 4 in the T (Texas cytoplasmic male-sterile) version of W64A.
- Material
- Texas cytoplasmic male-sterile (T) version of inbred W64Ae1
- Outcome
- Augmentatione1
- Qualifier
- prevented at pH 4e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation is prevented at pH 4 in the Texas cytoplasmic male-sterile (T) version of inbred W64A but not in the male-fertile (N) version”
Claim · model-written summary
Augmentation is not prevented at pH 4 in the male-fertile (N) version of W64A.
- Material
- male-fertile (N) versione1
- Outcome
- Augmentatione1
- Qualifier
- not in the male-fertile (N) versione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation is prevented at pH 4 in the Texas cytoplasmic male-sterile (T) version of inbred W64A but not in the male-fertile (N) version”
Claim · model-written summary
Protein synthesis is required for development of K+ uptake augmentation, probably also for maintenance of the augmented rate, but apparently not for its expression.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Protein synthesis is required for development of K + ( 86 Rb) uptake augmentation and probably also for maintenance of the augmented rate after development but apparently not for its expression”
Claim · model-written summary
Inhibition of maintenance of the augmented rate by low concentrations of chloramphenicol or cycloheximide does not prevent subsequent augmentation in their absence.
- Treatment
- low concentrations of chloramphenicol or cycloheximidee1
- Outcome
- subsequent augmentatione1
- Direction
- does not prevente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Inhibition of the maintenance of the augmented rate by low concentrations of chloramphenicol or cycloheximide does not prevent subsequent augmentation in their absence”
Claim · model-written summary
Augmentation of amino acid uptake is not inhibited by 100 ug/ml chloramphenicol or 10 ug/ml cycloheximide.
- Treatment
- 100 μg/ml chloramphenicol or 10 μg/ml cycloheximidee1
- Outcome
- Augmentation of amino acid uptakee1
- Direction
- not inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation of amino acid uptake is not inhibited by 100 μg/ml chloramphenicol or 10 μg/ml cycloheximide”
Claim · model-written summary
Augmentation of amino acid incorporation is inhibited by both chloramphenicol and cycloheximide.
- Treatment
- 100 μg/ml chloramphenicol or 10 μg/ml cycloheximidee1
- Outcome
- augmentation of amino acid incorporatione1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation of amino acid uptake is not inhibited by 100 μg/ml chloramphenicol or 10 μg/ml cycloheximide, but augmentation of amino acid incorporation is inhibited by each”
Claim · model-written summary
Augmentation of amino acid influx is sensitive to the Helminthosporium maydis race T toxin in T roots.
- Material
- T rootse1
- Treatment
- toxin of Helminthosporium maydis, race Te1
- Interactor
- Helminthosporium maydis, race T
Bipolaris maydise1pathogen - Outcome
- Augmentation of amino acid influxe1
- Direction
- sensitivee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation of amino acid influx is sensitive to the toxin of Helminthosporium maydis, race T, in T roots but not in N roots”
Claim · model-written summary
Augmentation of amino acid influx is not sensitive to the Helminthosporium maydis race T toxin in N roots.
- Material
- N rootse1
- Treatment
- toxin of Helminthosporium maydis, race Te1
- Interactor
- Helminthosporium maydis, race TBipolaris maydise1pathogen
- Outcome
- Augmentation of amino acid influxe1
- Direction
- not in N rootse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation of amino acid influx is sensitive to the toxin of Helminthosporium maydis, race T, in T roots but not in N roots”
Claim · model-written summary
Augmentation of amino acid incorporation is only slightly more toxin-sensitive in T than in N root segments.
- Material
- Te1
- Treatment
- toxin of Helminthosporium maydis, race Te1
- Interactor
- Helminthosporium maydis, race TBipolaris maydise1pathogen
- Outcome
- augmentation of amino acid incorporatione1
- Direction
- only slightly more toxin-sensitivee1
- Comparator
- N root segmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“inbred maize (Zea mays)”
e1“Augmentation of amino acid influx is sensitive to the toxin of Helminthosporium maydis, race T, in T roots but not in N roots, whereas augmentation of amino acid incorporation is only slightly more toxin-sensitive in T than in N root segments”
The same questions in other papers
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See all 5 papers →chloramphenicol · nutrient: content · Zea mays (maize)Results agree
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cycloheximide · molecular: metabolites · Zea mays (maize)Results agree
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cycloheximide · nutrient: content · Zea mays (maize)Results agree
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pathogen product · molecular: metabolites · Zea mays (maize)Positive and negative results
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See all 11 papers →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.