Abstract
카드뮴에 의해 유도되는 담배의 생장, 엽록소 함량, rubisco와 rubisco activase에 미치는 SA의 영향과, 이에 대한 변성제의 효과를 연구하였다. 담배 기내생장에 대한 SA의 최적농도를 찾기 위해, $10^{-6}$ mM - $10^2$ mM SA를 처리하여 9주간 생장시킨 결과, $10^{-4}$ mM SA에서 가장 높은 생장을 보였다. SA와 카드뮴을 4개의 실험구(대조구, SA, 카드뮴, 카드뮴 + SA)로 하여 생장, 엽록소 함량 및 rubisco와 rubisco activase의 함량과 활성을 측정한 결과, 카드뮴 > 카드뮴 + SA < 대조구 <SA 순서이었으며, 대조구보다 카드뮴을 처리했을 때 낮았고, 대조구보다 SA에서 높았으며, 카드뮴 보다 SA에서 높게 나타났다. 이는 카드뮴에 의해 유발된 억제 현상이 SA에 의해 반전되었음을 의미하는 것으로, SA는 담배 식물의 기내생장, 엽록소 및 rubisco/rubisco activase에 대한 카드뮴의 손실 효과를 개선시키는 positive effect 작용을 하는 것으로 나타났다. Rubisco의 활성에 대한 변성제 들은 카드뮴 > 카드뮴 + SA < 대조구 <SA 순서로 효과를 나타냈으며, 이 중 L-cysteine과 ${\beta}$-mercaptoethanol은 활성을 촉진시켰으며, urea, thiourea, guanidium-HCl은 억제시켰다. 이는 L-cysteine과 ${\beta}$-mercaptoethanol은 변성에 관여하지 않으며, urea, thiourea, guanidium-HCl은 변성에 관여하였음을 의미한다. Rubisco activase의 활성에 대한 변성제들의 영향을 조사한 결과, 5종 모두는 비처리구와 비교하여 현저한 영향은 나타내지 않았다. The influence of salicylic acid (SA) on growth, chlorophyll, and rubisco/rubisco activase and effect of denaturator on rubisco/rubisco activase activity were studied in tobacco plants grown in vitro with cadmium (Cd) treatment. In order to find out the optimum concentration of SA, tobacco plants treated with $10^{-6}$ mM - $10^2$ mM of SA were grown in MS medium for 9 weeks, respectively. The most pronounced effect on in vitro growth was found at $10^{-4}$ mM SA. Among the control (not treated with Cd and SA), SA, Cd, and Cd + SA, the growth and content of chlorophyll were in the sequence of Cd < Cd + SA < control < SA, and significantly higher at SA compared with others. Similar results were also observed in the content and activity of rubisco and rubisco activase. These data suggest that inhibitory effect by Cd was reversed by SA. These results also indicate that SA has a positive effect on Cd. The effect of denaturants on rubisco activity showed in the sequence of Cd < Cd + SA < control < SA. Rubisco activity was promoted by L-cysteine and ${\beta}$-mercaptoethanol, not by urea, thiourea, and guanidium-HCl. These data suggest that urea, thiourea, and guanidium-HCl are able to act as denaturator, and L-cysteine and ${\beta}$-mercaptoethanol are not. None of the five denaturants affected the activity of rubisco activase.
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Claims 7
Claim · model-written summary
Tobacco in vitro growth was greatest at 10^-4 mM SA.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- $10^{-4}$ mM SAe0
- Outcome
- in vitro growthe0
- Direction
- most pronouncede0
- Comparator
- $10^{-6}$ mM - $10^2$ mM of SAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most pronounced effect on in vitro growth was found at $10^{-4}$ mM SA”
e1“tobacco plants treated with $10^{-6}$ mM - $10^2$ mM of SA”
Claim · model-written summary
Growth and chlorophyll content ranked Cd below Cd plus SA below control below SA.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- Cd + SAe0
- Outcome
- growth and content of chlorophylle0
- Direction
- Cd < Cd + SA < control < SAe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth and content of chlorophyll were in the sequence of Cd < Cd + SA < control < SA”
e1“tobacco plants grown in vitro with cadmium (Cd) treatment”
Claim · model-written summary
SA treatment gave significantly higher growth and chlorophyll content than the other groups.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- SAe0
- Outcome
- growth and content of chlorophylle0
- Direction
- highere0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth and content of chlorophyll were in the sequence of Cd < Cd + SA < control < SA, and significantly higher at SA compared with others”
e1“tobacco plants grown in vitro”
Claim · model-written summary
Rubisco and Rubisco activase content and activity showed the same treatment ranking.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- Cd + SAe1
- Outcome
- content and activity of rubisco and rubisco activasee0
- Direction
- Cd < Cd + SA < control < SAe1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar results were also observed in the content and activity of rubisco and rubisco activase”
e1“the growth and content of chlorophyll were in the sequence of Cd < Cd + SA < control < SA”
e2“tobacco plants grown in vitro”
Claim · model-written summary
L-cysteine and beta-mercaptoethanol promoted Rubisco activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- L-cysteine and ${\beta}$-mercaptoethanole0
- Outcome
- Rubisco activitye0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rubisco activity was promoted by L-cysteine and ${\beta}$-mercaptoethanol”
e1“tobacco plants grown in vitro”
Claim · model-written summary
Urea, thiourea and guanidium-HCl did not promote Rubisco activity.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- urea, thiourea, and guanidium-HCle0
- Outcome
- Rubisco activitye1
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not by urea, thiourea, and guanidium-HCl”
e1“Rubisco activity was promoted by L-cysteine and ${\beta}$-mercaptoethanol, not by urea, thiourea, and guanidium-HCl”
e2“tobacco plants grown in vitro”
Claim · model-written summary
None of five denaturants affected Rubisco activase activity.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- five denaturantse0
- Outcome
- activity of rubisco activasee0
- Direction
- Nonee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the five denaturants affected the activity of rubisco activase”
e1“tobacco plants grown in vitro”
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See all 23 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.