Abstract
카드뮴(Cd)에 의해 유도되는 담배의 생장과 rubisco/rubisco activase에 미치는 ESA (ethylsalicylic acid)의 효과 및 이에 대한 변성제의 효과를 연구하였다. 담배기내 배양에 대한 ESA의 최적 농도를 찾기 위해, $10^{-6}$-10 mM ESA를 처리하여 배양시킨 결과, $10^{-4}$ mM ESA에서 생장이 가장 높게 나타났다. 최적농도인 $10^{-4}$ mM ESA와 0.2 mM $CdCl_2{\cdot}2.5H_2O$를 사용하여, 대조구, Cd 처리구, ESA 처리구 및 Cd와 ESA 혼합구에서의 담배의 생장을 측정한 결과, ESA 처리구의 생장이 가장 좋았으며, Cd 처리구의 생장이 가장 저조하였다. Rubisco/rubisco activase의 함량과 활성을 측정한 결과, 두 가지의 함량과 활성 모두 Cd 처리구가 가장 낮았으며, ESA 처리구에서는 Rubisco와 rubisco activase의 함량이 감소되었고, 활성은 증가하였다. Guanidine-HCl 처리를 제외한 L-cysteine, urea, thiourea, ${\beta}$-mercaptoethanol, EDTA에 의해 rubisco의 활성이 억제되었으며, L-cysteine, urea, thiourea, guanidine-HCl 처리구에서는 rubisco activase 활성이 변화가 없었으나, ${\beta}$-mercaptoethanol과 EDTA는 활성을 증가시키는 것으로 나타났다. 결론적으로, ESA는 rubisco의 함량을 억제시키고 활성은 촉진시키며, rubisco activase의 함량은 촉진시키고 활성은 억제시켰다. 또한 Cd에 의해 저해된 rubisco와 rubisco activase의 활성이 변성제에 의해 저해되었으며, Cd에 의해 저해된 ESA의 회복이 변성제에 의하여 상실되었다. Growth induced by cadmium (Cd) and ethylsalicylic acid (ESA) and the effect of ESA on rubisco/rubisco activase were studied in tobacco. The effect of denaturants on rubisco/rubisco activase was also investigated. In order to determine optimal concentration of ESA for growth of tobacco, tobacco was treated with $10^{-6}$-10 mM. It was found that its growth was the highest at $10^{-4}$ mM ESA. In the experiment using control, Cd treated group, ESA treated group, and Cd and ESA mixture group, ESA alone showed the highest growth and Cd showed the lowest growth. Cd treated group was the lowest in both rubisco/rubisco activase content and activity. ESA reduced the rubisco/rubisco activase content, but increased their activity. The activity of rubisco was inhibited by treating L-cysteine, urea, thiourea, ${\beta}$-mercaptoethanol, and EDTA other than guanidine-HCl in control group. L-cysteine, urea, thiourea, and guanidine-HCl treatments showed no change, but ${\beta}$-mercaptoethanol and EDTA increased rubisco activase activity. In conclusion, ESA inhibited the content of rubisco and promoted its activity, whereas promoted the content of rubisco activase and inhibited its activity. In addition, the content and activity of rubisco and rubisco activase inhibited by Cd were recovered by ESA. The activity of rubisco and rubisco activase by Cd and ESA was inhibited by the denaturant and the recovery of ESA inhibited by Cd was lost by the denaturant.
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Claims 10
Claim · model-written summary
Tobacco growth was highest at 10^-4 mM ESA.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- $10^{-4}$ mM ESAe0
- Outcome
- growthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was found that its growth was the highest at $10^{-4}$ mM ESA.”
e1“growth of tobacco”
Claim · model-written summary
ESA alone gave the highest tobacco growth, whereas cadmium gave the lowest.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ESA alone showed the highest growth and Cd showed the lowest growth.”
e1“growth of tobacco”
Claim · model-written summary
Cadmium treatment produced the lowest Rubisco and Rubisco activase content and activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- Cd treated groupe0
- Outcome
- rubisco/rubisco activase content and activitye0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd treated group was the lowest in both rubisco/rubisco activase content and activity.”
e1“in tobacco”
Claim · model-written summary
ESA reduced Rubisco content but promoted Rubisco activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- ESAe0
- Gene
- rubiscoe0
- Outcome
- content of rubiscoe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ESA inhibited the content of rubisco and promoted its activity”
e1“in tobacco”
Claim · model-written summary
ESA promoted Rubisco activase content but inhibited its activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- ESAe2
- Gene
- rubisco activasee0
- Outcome
- content of rubisco activasee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“promoted the content of rubisco activase and inhibited its activity”
e1“in tobacco”
e2“ESA inhibited the content of rubisco”
Claim · model-written summary
L-cysteine, urea, thiourea, beta-mercaptoethanol and EDTA inhibited Rubisco activity, unlike guanidine-HCl.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- L-cysteine, urea, thiourea, ${\beta}$-mercaptoethanol, and EDTAe0
- Outcome
- activity of rubiscoe0
- Direction
- inhibitede0
- Comparator
- guanidine-HCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of rubisco was inhibited by treating L-cysteine, urea, thiourea, ${\beta}$-mercaptoethanol, and EDTA other than guanidine-HCl in control group.”
e1“in tobacco”
Claim · model-written summary
L-cysteine, urea, thiourea and guanidine-HCl did not change Rubisco activase activity.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- L-cysteine, urea, thiourea, and guanidine-HCle0
- Outcome
- rubisco activase activitye1
- Direction
- no changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L-cysteine, urea, thiourea, and guanidine-HCl treatments showed no change”
e1“rubisco activase activity”
e2“in tobacco”
Claim · model-written summary
Beta-mercaptoethanol and EDTA increased Rubisco activase activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- ${\beta}$-mercaptoethanol and EDTAe0
- Outcome
- rubisco activase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“${\beta}$-mercaptoethanol and EDTA increased rubisco activase activity.”
e1“in tobacco”
Claim · model-written summary
ESA recovered cadmium-inhibited Rubisco and Rubisco activase content and activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- ESAe0
- Outcome
- content and activity of rubisco and rubisco activasee0
- Direction
- recoverede0
- Comparator
- Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content and activity of rubisco and rubisco activase inhibited by Cd were recovered by ESA.”
e1“in tobacco”
Claim · model-written summary
Denaturants inhibited Rubisco and Rubisco activase activity and removed ESA recovery under cadmium exposure.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- denaturante0
- Outcome
- activity of rubisco and rubisco activasee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of rubisco and rubisco activase by Cd and ESA was inhibited by the denaturant and the recovery of ESA inhibited by Cd was lost by the denaturant.”
e1“in tobacco”
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