Abstract
담배 유식물의 생장, 엽록소 및 광합성 효소에 대한 카드뮴과 질산염의 영향에 대해 연구하였다. 카드뮴에 의한 억제된 생장은 질산염에 의해 회복되지 않았다. 엽록소 a와 b의 함량은 카드뮴에 의해 감소하였으며, 카드뮴과 질산염 혼합처리구는 카드뮴 처리구보다 엽록소 함량이 감소하였다. 카드윰 처리구에서의 rubisco의 활성과 함량은 대조구에서의 함량보다 현저히 작았다. 이는 rubisco의 활성이 함량과 연관되어 있으며, rubisco의 활성화와 합성이 카드뮴에 의해 저해된다는 것을 의미한다. 카드뮴에 의해 감소된 rubisco의 활성과 함량은 질산염에 의해 더욱 더 감소되었다. 이와 비슷한 변화가 rubisco activase의 활성과 함량에서도 관찰되었다. 이 결과들은 카드뮴과 질산염에 의해 유도되는 rubisco의 변화가 rubisco activase와 서로 연관되어 있음을 의미하며, 질산염은 직접적으로 rubisco의 활성화와 합성에 관여 할 뿐만 아니라 rubisco activase를 통해서도 rubisco의 수준에 관여하는 것으로 해석된다. This investigation was performed to study the influence of Cd and nitrate on growth, and chlorophyll and photosynthetic enzymes in seedling of tobacco. Growth inhibition by Cd was not recovered by nitrate. Chlorophyll levels were reduced by Cd. The combination of Cd and low concentration of nitrate decreased the chlorophyll content compared to that in plants exposed only to Cd. Activity and content of rubisco at Cd treatment was significantly lesser than in plants receiving no treatment, These data suggest that rubisco activity was associated with an amount of rubisco protein, and that the activation and synthesis of rubisco is inhibited by Cd. Both the activity and content of rubisco decreased by Cd were more decreased by nitrate. A similar change pattern was also observed in activity and content of rubisco activase. These results suggest that Cd- and nitrate-induced changes of rubisco could be correlated with rubisco activase, and that nitrate was concerned in not only the activation and synthesis of rubisco directly, but also rubisco activase leading to a large change in rubisco.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 11
Claim · model-written summary
Nitrate did not restore tobacco growth inhibited by cadmium.
- Taxon
- Tobacco
Nicotiana tabacumt0 - Treatment
- nitratee0
- Outcome
- Growth inhibitione0
- Direction
- not recoverede0
- Comparator
- Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth inhibition by Cd was not recovered by nitrate.”
t0“Tobacco”
Claim · model-written summary
Cadmium reduced tobacco chlorophyll.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Cde0
- Outcome
- Chlorophyll levelse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll levels were reduced by Cd.”
t0“Tobacco”
Claim · model-written summary
Cadmium plus low nitrate reduced chlorophyll versus cadmium alone.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- combination of Cd and low concentration of nitratee0
- Outcome
- chlorophyll contente0
- Direction
- decreasede0
- Comparator
- plants exposed only to Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of Cd and low concentration of nitrate decreased the chlorophyll content compared to that in plants exposed only to Cd.”
t0“Tobacco”
Claim · model-written summary
Cadmium significantly lowered Rubisco activity versus untreated plants.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Cd treatmente0
- Gene
- rubiscoe0
- Outcome
- Activitye0
- Direction
- lessere0
- Comparator
- plants receiving no treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activity and content of rubisco at Cd treatment was significantly lesser than in plants receiving no treatment”
t0“Tobacco”
Claim · model-written summary
Cadmium significantly lowered Rubisco content versus untreated plants.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Cd treatmente0
- Gene
- rubiscoe0
- Outcome
- content of rubiscoe0
- Direction
- lessere0
- Comparator
- plants receiving no treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activity and content of rubisco at Cd treatment was significantly lesser than in plants receiving no treatment”
t0“Tobacco”
Claim · model-written summary
Rubisco activity was associated with Rubisco protein amount.
- Taxon
- TobaccoNicotiana tabacumt0
- Gene
- rubiscoe0
- Outcome
- rubisco activitye0
- Qualifier
- amount of rubisco proteine0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These data suggest that rubisco activity was associated with an amount of rubisco protein”
t0“Tobacco”
Claim · model-written summary
The authors infer cadmium inhibits Rubisco activation and synthesis.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Cde0
- Gene
- rubiscoe0
- Outcome
- activation and synthesis of rubiscoe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activation and synthesis of rubisco is inhibited by Cd.”
t0“Tobacco”
Claim · model-written summary
Nitrate further reduced cadmium-depressed Rubisco activity and content.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- nitratee0
- Gene
- rubiscoe0
- Outcome
- activity and content of rubiscoe0
- Direction
- more decreasede0
- Comparator
- Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the activity and content of rubisco decreased by Cd were more decreased by nitrate.”
t0“Tobacco”
Claim · model-written summary
Rubisco activase activity and content showed a similar decline.
- Taxon
- TobaccoNicotiana tabacumt0
- Gene
- rubisco activasee0
- Outcome
- activity and content of rubisco activasee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar change pattern was also observed in activity and content of rubisco activase.”
t0“Tobacco”
Claim · model-written summary
The authors suggest cadmium- and nitrate-induced Rubisco changes correlate with Rubisco activase.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Cd- and nitratee0
- Gene
- rubisco activasee0
- Outcome
- changes of rubiscoe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd- and nitrate-induced changes of rubisco could be correlated with rubisco activase”
t0“Tobacco”
Claim · model-written summary
The authors infer nitrate acts on Rubisco directly and through Rubisco activase.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- nitratee0
- Gene
- rubisco activasee0
- Outcome
- activation and synthesis of rubiscoe0
- Qualifier
- directly, but also rubisco activasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrate was concerned in not only the activation and synthesis of rubisco directly, but also rubisco activase leading to a large change in rubisco.”
t0“Tobacco”
The same questions in other papers
cadmium atom · physiology: pigments · Nicotiana tabacum (tobacco)Results differ
8 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
7 papers more in this group
See all 11 papers →cadmium atom · physiology: photosynthesis · Nicotiana tabacum (tobacco)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 papers →nitrogen · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results
2 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →nitrogen · disease · Nicotiana tabacum (tobacco)Positive and negative results
6 papers in the same direction as this paper · 7 reporting no difference from an alternative
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →nitrogen · physiology: photosynthesis · Nicotiana tabacum (tobacco)Positive and negative results
8 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
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.