Abstract
Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis. Plastids isolated from dark-grown control and dark-grown fluridone-treated plants were similar in size and protein compositions. Dehydration of dark-grown control barley caused abscisic acid levels to increase 30-40-fold in 4 h, while plants treated with 0.1 mM fluridone accumulated very little abscisic acid in response to dehydration. These results suggest that fluridone-treated plants do not accumulate abscisic acid because of carotenoid deficiency rather than plastid dysfunction. Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids. Dehydration of these plants resulted in a 4-8-fold increase in abscisic acid and a decrease in antheraxanthin, violaxanthin and neoxanthin, but no change in beta-carotene or lutein plus zeaxanthin levels. This result is consistent with the suggestion that xanthophylls are precursors to abscisic acid in dehydrated plants.
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Claims 11
Claim · model-written summary
Fluridone at 0.1 mM inhibited carotenoid accumulation in dark-grown barley relative to the dark-grown control.
- Taxon
- barley
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Hordeum vulgaree1 - Treatment
- 0.1 mM fluridonee1
- Outcome
- carotenoid accumulatione1
- Direction
- inhibitede1
- Comparator
- dark-grown controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e2“Plastids isolated from dark-grown control and dark-grown fluridone-treated plants were similar in size and protein compositions”
Claim · model-written summary
Fluridone at 0.1 mM did not alter plastid biogenesis in dark-grown barley.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- 0.1 mM fluridonee1
- Outcome
- plastid biogenesise1
- Direction
- did not altere1
- Comparator
- dark-grown controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e2“Plastids isolated from dark-grown control and dark-grown fluridone-treated plants were similar in size and protein compositions”
Claim · model-written summary
Plastids from fluridone-treated and control barley were similar in size and protein composition.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- dark-grown fluridone-treated plantse2
- Outcome
- size and protein compositionse2
- Direction
- similare2
- Comparator
- dark-grown controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e2“Plastids isolated from dark-grown control and dark-grown fluridone-treated plants were similar in size and protein compositions”
Claim · model-written summary
Dehydration of control barley increased abscisic acid levels 30-40-fold within 4 h.
- Taxon
- barleyHordeum vulgaree3
- Treatment
- Dehydratione3
- Outcome
- abscisic acid levelse3
- Direction
- increasee3
- Value
- 30-40-folde3
- Qualifier
- in 4 he3
- Comparator
- dark-grown control barleye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Dehydration of dark-grown control barley caused abscisic acid levels to increase 30-40-fold in 4 h”
Claim · model-written summary
Fluridone at 0.1 mM caused barley to accumulate very little abscisic acid in response to dehydration.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- 0.1 mM fluridonee4
- Outcome
- abscisic acide4
- Direction
- very littlee4
- Qualifier
- in response to dehydratione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e4“while plants treated with 0.1 mM fluridone accumulated very little abscisic acid in response to dehydration”
Claim · model-written summary
Dark-grown barley treated with 0.31 microM fluridone accumulated low levels of carotenoids.
- Taxon
- barleyHordeum vulgaree5
- Treatment
- 0.31 microM fluridonee5
- Outcome
- carotenoidse5
- Direction
- lowe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids”
Claim · model-written summary
Dehydration of barley treated with 0.31 microM fluridone increased abscisic acid 4-8-fold.
- Taxon
- barleyHordeum vulgaree5
- Treatment
- Dehydratione6
- Outcome
- abscisic acide6
- Direction
- increasee6
- Value
- 4-8-folde6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids”
e6“Dehydration of these plants resulted in a 4-8-fold increase in abscisic acid”
Claim · model-written summary
Dehydration decreased antheraxanthin, violaxanthin and neoxanthin in barley treated with 0.31 microM fluridone.
- Taxon
- barleyHordeum vulgaree5
- Treatment
- Dehydratione6
- Outcome
- antheraxanthin, violaxanthin and neoxanthine7
- Direction
- decreasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids”
e6“Dehydration of these plants resulted in a 4-8-fold increase in abscisic acid”
e7“a decrease in antheraxanthin, violaxanthin and neoxanthin, but no change in beta-carotene or lutein plus zeaxanthin levels”
Claim · model-written summary
Dehydration did not change beta-carotene or lutein plus zeaxanthin levels in barley treated with 0.31 microM fluridone.
- Taxon
- barleyHordeum vulgaree5
- Treatment
- Dehydratione6
- Outcome
- beta-carotene or lutein plus zeaxanthin levelse7
- Direction
- no changee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids”
e6“Dehydration of these plants resulted in a 4-8-fold increase in abscisic acid”
e7“a decrease in antheraxanthin, violaxanthin and neoxanthin, but no change in beta-carotene or lutein plus zeaxanthin levels”
Claim · model-written summary
Xanthophylls are suggested to be precursors of abscisic acid in dehydrated barley.
- Taxon
- barleyHordeum vulgaree1
- Compound
- xanthophyllse2
- Outcome
- abscisic acide2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e2“This result is consistent with the suggestion that xanthophylls are precursors to abscisic acid in dehydrated plants”
Claim · model-written summary
Fluridone-treated barley does not accumulate abscisic acid because of carotenoid deficiency rather than plastid dysfunction.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- fluridone-treated plantse2
- Outcome
- accumulate abscisic acide2
- Qualifier
- carotenoid deficiency rather than plastid dysfunctione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis”
e2“These results suggest that fluridone-treated plants do not accumulate abscisic acid because of carotenoid deficiency rather than plastid dysfunction”
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See all 32 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.