Abstract
Studies wereconducted todetermine theuptake andmetabolismofthepigment synthesis inhibiting herbicide clomazone in tolerant-soybean (Glycine max[L.] Merr. cvCorsoy) andsusceptible-cotton (Gossypium hirsutum [L.] cvStoneville 825)photomixotrophic cell suspensions. Soybean andcotton onawhole plant level aretolerant andsusceptible toclomazone, respectively. Preliminary studies indicated thatl values forgrowth, chlorophyll (Chl), 8-carotene, andlutein were,respectively, >22, 14,19,and23timesgreater forthesoybean cell line (SB-M) 8 daysafter treatment (DAT) compared tothecotton cell line (COTM)16DAT.Differences in[14C]clomazone uptake cannot account forselectivity sincethere weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment. Thepercentage ofabsorbed clomazone converted tomorepolar metabolite(s) wassignificantly greater bytheSB-Mcells relative toCOT-Mcells at6and24hours after treatment, however, onlysmall differences existed between the cell lines by48hoursafter treatment. Nearly identical levels of parental clomazone wasrecovered frombothcell lines forall treatments. Apooled metabolite fraction isolated fromSB-Mcells hadnoeffect ontheleaf pigment content ofsusceptible velvetleaf (Abutilon theophrasti Medic.) orsoybean seedlings. Conversely, apooled metabolite fraction fromCOT-Mcells reduced theleaf Chicontent ofvelvetleaf. Soybean tolerance toclomazone appearstobeduetodifferential metabolism (bioactivation) and/or differences atthesite ofaction.
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Claims 12
Claim · model-written summary
Soybean cell growth tolerance was more than 22 times that of cotton cells after clomazone treatment.
- Taxon
- soybean
Glycine maxe0 - Material
- SB-Me0
- Treatment
- clomazonee1
- Outcome
- growthe0
- Direction
- greatere0
- Value
- >22e0
- Comparator
- COTMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preliminary studies indicated thatl values forgrowth, chlorophyll (Chl), 8-carotene, andlutein were,respectively, >22, 14,19,and23timesgreater forthesoybean cell line (SB-M) 8 daysafter treatment (DAT) compared tothecotton cell line (COTM)16DAT.”
e1“there weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment.”
Claim · model-written summary
Soybean cell chlorophyll tolerance was 14 times that of cotton cells after clomazone treatment.
- Taxon
- soybeanGlycine maxe0
- Material
- SB-Me0
- Treatment
- clomazonee1
- Outcome
- chlorophylle0
- Direction
- greatere0
- Value
- 14e0
- Comparator
- COTMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preliminary studies indicated thatl values forgrowth, chlorophyll (Chl), 8-carotene, andlutein were,respectively, >22, 14,19,and23timesgreater forthesoybean cell line (SB-M) 8 daysafter treatment (DAT) compared tothecotton cell line (COTM)16DAT.”
e1“there weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment.”
Claim · model-written summary
Soybean cell carotene tolerance was 19 times that of cotton cells.
- Taxon
- soybeanGlycine maxe0
- Material
- SB-Me0
- Treatment
- clomazonee1
- Outcome
- 8-carotenee0
- Direction
- greatere0
- Value
- 19e0
- Comparator
- COTMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preliminary studies indicated thatl values forgrowth, chlorophyll (Chl), 8-carotene, andlutein were,respectively, >22, 14,19,and23timesgreater forthesoybean cell line (SB-M) 8 daysafter treatment (DAT) compared tothecotton cell line (COTM)16DAT.”
e1“there weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment.”
Claim · model-written summary
Soybean cell lutein tolerance was 23 times that of cotton cells.
- Taxon
- soybeanGlycine maxe0
- Material
- SB-Me0
- Treatment
- clomazonee1
- Outcome
- luteine0
- Direction
- greatere0
- Value
- 23e0
- Comparator
- COTMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preliminary studies indicated thatl values forgrowth, chlorophyll (Chl), 8-carotene, andlutein were,respectively, >22, 14,19,and23timesgreater forthesoybean cell line (SB-M) 8 daysafter treatment (DAT) compared tothecotton cell line (COTM)16DAT.”
e1“there weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment.”
Claim · model-written summary
Soybean cells absorbed significantly more clomazone than cotton cells under each treatment.
Verbatim
e0“there weresignificantly greater levels of clomazone absorbed bytheSB-Mcells compared totheCOT-M cells foreachtreatment.”
Claim · model-written summary
Soybean cells converted a significantly greater fraction of absorbed clomazone to polar metabolites than cotton cells at 6 and 24 hours.
Verbatim
e0“Thepercentage ofabsorbed clomazone converted tomorepolar metabolite(s) wassignificantly greater bytheSB-Mcells relative toCOT-Mcells at6and24hours after treatment”
Claim · model-written summary
The cell lines differed only slightly in clomazone conversion by 48 hours.
Not reportedDirection
Verbatim
e0“onlysmall differences existed between the cell lines by48hoursafter treatment.”
Claim · model-written summary
The two cell lines retained nearly identical amounts of parent clomazone.
Verbatim
e0“Nearly identical levels of parental clomazone wasrecovered frombothcell lines forall treatments.”
Claim · model-written summary
Metabolites from soybean cells did not affect velvetleaf leaf pigments.
- Taxon
- velvetleaf
Abutilon theophrastie0 - Treatment
- metabolite fraction isolated fromSB-Mcellse0
- Outcome
- leaf pigment contente0
- Direction
- noeffecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apooled metabolite fraction isolated fromSB-Mcells hadnoeffect ontheleaf pigment content ofsusceptible velvetleaf (Abutilon theophrasti Medic.) orsoybean seedlings.”
Claim · model-written summary
Metabolites from soybean cells did not affect soybean seedling leaf pigments.
- Taxon
- soybeanGlycine maxe0
- Treatment
- metabolite fraction isolated fromSB-Mcellse0
- Outcome
- leaf pigment contente0
- Direction
- noeffecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apooled metabolite fraction isolated fromSB-Mcells hadnoeffect ontheleaf pigment content ofsusceptible velvetleaf (Abutilon theophrasti Medic.) orsoybean seedlings.”
Claim · model-written summary
Metabolites from cotton cells reduced velvetleaf leaf chlorophyll.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- metabolite fraction fromCOT-Mcellse0
- Outcome
- leaf Chicontente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“apooled metabolite fraction fromCOT-Mcells reduced theleaf Chicontent ofvelvetleaf.”
Claim · model-written summary
Soybean tolerance to clomazone was attributed to differential metabolism or differences at the site of action.
- Taxon
- SoybeanGlycine maxe0
- Outcome
- tolerance toclomazonee0
- Qualifier
- differential metabolism (bioactivation) and/or differences atthesite ofactione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean tolerance toclomazone appearstobeduetodifferential metabolism (bioactivation) and/or differences atthesite ofaction.”
The same questions in other papers
clomazone · molecular: metabolites · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
clomazone · growth · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
2 papers more in this group
See all 6 papers →metabolite · physiology: pigments · Abutilon theophrasti (velvetleaf)Results agree
1 paper in the same direction as this paper
- no effect
metabolite · physiology: pigments · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
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.