Paper · 1995 · Journal of Weed Science and Technology

Safening Effect of Dimepiperate on Bensulfuron methyl Phytotoxicity and Action Mechanism in Rice Seedlings

Do-Jin Lee; Hiroshi Matsumoto; Kenji Usui; et al.

16
claims
32
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

ベンスルフロンメチル (BSM) によるイネ幼苗の生育抑制に対するジメピペレートの薬害軽減機構を明らかにするために, BSMの吸収・移行および不活性化への代謝, および, BSMの植物代謝系への影響におけるジメピペレートの混合効果について検討した。1) BSM処理により引き起こされた7日苗イネの生育抑制は, ジメピペレートとの混合処理によって明瞭に軽減されることが確かめられた。2) 植物体中への14C-BSMの吸収量は時間の経過と共に増加し, そのほとんどが根部に留まったが, ジメピペレートとの混合処理区では吸収量の減少が認められた。一方, 根部から地上部への移行率では影響が認められなかった。3) イネ幼苗の根部に吸収されたBSMの代謝においては, ジメピペレートの混合処理によって親化合物が減少し, 不活性代謝物のO-脱メチル体の割合の増加が認められた。4) ジメピペレートあるいはダイムロンを根部に3日間前処理したイネの茎葉部におけるBSMの代謝率を比較したが, ジメピペレートで代謝促進効果が認められた。5) アセトラクテート合成酵素 (ALS) 活性は, in vitro, in vivo 共にBSM単独処理によって阻害され, in vivo でのジメピペレートの混合処理によってのみ活性の回復が認められた。6) 根部における分岐アミノ酸 (Leu, Ile, Val) 含量はBSM処理により減少し, ジメピペレートの混合処理によってIle, Val含量の回復が認められた。また, ジメピペレートを根部に3日間前処理した茎葉部においても内生分岐アミノ酸 (Ile, Val) の回復が認められた。7) 根端部におけるチミジンのDNA画分への取り込みは, BSM処理により96時間後から阻害が見られたが, ジメピペレートと混合処理するとその阻害は回復された。以上の結果から, イネ幼苗におけるジメピペレートの生育抑制軽減作用の主要因として, イネ幼苗体内へのBSMの吸収抑制および吸収されたBSMの不活性化合物生成への代謝促進が関係しているものと示唆された。また, ジメピペレートとの混合処理において, ALS活性, 分岐アミノ酸含量, チミジンのDNA画分への取り込み等の阻害が回復されるのは, BSMの吸収抑制や代謝促進作用による二次的な影響によるものと推察した。

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture alleviated BSM growth inhibition in seven-day rice seedlings.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
7日苗e0
Treatment
ジメピペレートとの混合処理e0
Outcome
生育抑制e0
Direction
軽減e0
Comparator
BSM処理e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“BSM処理により引き起こされた7日苗イネの生育抑制は, ジメピペレートとの混合処理によって明瞭に軽減されることが確かめられた。”

✓ located verbatim in the source · abstract, characters 127–190 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture decreased uptake of radiolabeled BSM into rice plants.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートとの混合処理区e0
Outcome
吸収量e0
Direction
減少e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートとの混合処理区では吸収量の減少が認められた”

✓ located verbatim in the source · abstract, characters 241–269 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

BSM uptake increased over time and most remained in roots.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
根部e0
Outcome
14C-BSMの吸収量e0
Direction
増加e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“植物体中への14C-BSMの吸収量は時間の経過と共に増加し, そのほとんどが根部に留まった”

✓ located verbatim in the source · abstract, characters 193–238 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Dimepiperate mixture did not affect BSM translocation from roots to shoots.

Taxon
Rice SeedlingsOryza sativat0
Outcome
根部から地上部への移行率e0
Direction
影響が認められなかったe0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“根部から地上部への移行率では影響が認められなかった”

✓ located verbatim in the source · abstract, characters 274–299 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture decreased the parent BSM compound in rice seedling roots.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートの混合処理e0
Outcome
親化合物e0
Direction
減少e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートの混合処理によって親化合物が減少し, 不活性代謝物のO-脱メチル体の割合の増加が認められた”

✓ located verbatim in the source · abstract, characters 329–381 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture increased the proportion of inactive O-demethylated BSM metabolite.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートの混合処理e0
Outcome
不活性代謝物のO-脱メチル体の割合e0
Direction
増加e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートの混合処理によって親化合物が減少し, 不活性代謝物のO-脱メチル体の割合の増加が認められた”

✓ located verbatim in the source · abstract, characters 329–381 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Root pretreatment with dimepiperate accelerated BSM metabolism in rice shoots.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
茎葉部e0
Treatment
ジメピペレートe0
Outcome
BSMの代謝率e0
Direction
代謝促進e0
Comparator
ダイムロンe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートあるいはダイムロンを根部に3日間前処理したイネの茎葉部におけるBSMの代謝率を比較したが, ジメピペレートで代謝促進効果が認められた”

✓ located verbatim in the source · abstract, characters 385–458 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BSM alone inhibited ALS activity in vitro and in vivo.

Taxon
Rice SeedlingsOryza sativat0
Treatment
BSM単独処理e0
Gene
アセトラクテート合成酵素 (ALS)e0
Outcome
アセトラクテート合成酵素 (ALS) 活性e0
Direction
阻害e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“アセトラクテート合成酵素 (ALS) 活性は, in vitro, in vivo 共にBSM単独処理によって阻害され”

✓ located verbatim in the source · abstract, characters 462–521 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture restored ALS activity in vivo.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートの混合処理e0
Outcome
活性e0
Direction
回復e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“in vivo でのジメピペレートの混合処理によってのみ活性の回復が認められた”

✓ located verbatim in the source · abstract, characters 523–562 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BSM reduced branched amino acid content in rice roots.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
根部e0
Treatment
BSM処理e0
Outcome
分岐アミノ酸 (Leu, Ile, Val) 含量e0
Direction
減少e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“根部における分岐アミノ酸 (Leu, Ile, Val) 含量はBSM処理により減少し”

✓ located verbatim in the source · abstract, characters 566–609 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture restored Ile and Val content in rice roots.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートの混合処理e0
Outcome
Ile, Val含量e0
Direction
回復e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートの混合処理によってIle, Val含量の回復が認められた”

✓ located verbatim in the source · abstract, characters 611–646 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate root pretreatment restored Ile and Val in shoots.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
茎葉部e0
Treatment
ジメピペレートを根部に3日間前処理e0
Outcome
内生分岐アミノ酸 (Ile, Val)e0
Direction
回復e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートを根部に3日間前処理した茎葉部においても内生分岐アミノ酸 (Ile, Val) の回復が認められた”

✓ located verbatim in the source · abstract, characters 651–707 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BSM inhibited thymidine incorporation into the DNA fraction of root tips after 96 hours.

Taxon
Rice SeedlingsOryza sativat0
Organ / stage
根端部e0
Treatment
BSM処理e0
Outcome
チミジンのDNA画分への取り込みe0
Direction
阻害e0
Qualifier
96時間後e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“根端部におけるチミジンのDNA画分への取り込みは, BSM処理により96時間後から阻害が見られた”

✓ located verbatim in the source · abstract, characters 711–759 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dimepiperate mixture restored thymidine incorporation inhibited by BSM.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートと混合処理e0
Outcome
阻害e0
Direction
回復e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートと混合処理するとその阻害は回復された”

✓ located verbatim in the source · abstract, characters 762–787 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Authors suggest reduced BSM uptake and faster inactivation explain dimepiperate growth protection.

Taxon
Rice SeedlingsOryza sativat0
Treatment
ジメピペレートe0
Outcome
生育抑制軽減作用e0
Qualifier
BSMの吸収抑制および吸収されたBSMの不活性化合物生成への代謝促進e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ジメピペレートの生育抑制軽減作用の主要因として, イネ幼苗体内へのBSMの吸収抑制および吸収されたBSMの不活性化合物生成への代謝促進が関係しているものと示唆された”

✓ located verbatim in the source · abstract, characters 805–887 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Authors infer restoration of ALS, amino acids and thymidine incorporation is secondary to reduced BSM uptake and accelerated metabolism.

Taxon
Rice SeedlingsOryza sativat0
Outcome
阻害が回復e0
Qualifier
BSMの吸収抑制や代謝促進作用e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Rice Seedlings”

✓ located verbatim in the source · title, characters 92–106 · show in text ↑
e0

“ALS活性, 分岐アミノ酸含量, チミジンのDNA画分への取り込み等の阻害が回復されるのは, BSMの吸収抑制や代謝促進作用による二次的な影響によるものと推察した”

✓ located verbatim in the source · abstract, characters 911–992 · show in text ↑