Abstract
The short term effects of high manganese levels (80 mg/L) on wheat and tobacco isocitrate dehydrogenase (IDH) activity were compared. The change in activity was then compared to the concentrations of manganese in the tissues. As the time of manganese exposure increased, the fresh weight IDH activities in wheat and tobacco decreased. In contrast both control groups had similar enzyme activities every 6 hr over the 24 hr test period. The decrease in IDH activity of wheat and tobacco plants in experimental groups seemed to be related to an increase of the manganese in the leaf tissue. The slower decrease in the IDH activity of wheat and the faster decrease in the IDH activity of tobacco appeared to correspond to manganese levels in the respective tissues. It appears that wheat is able to tolerate the higher manganese concentration in the growth media better than tobacco.
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Claims 9
Claim · model-written summary
Wheat IDH activity decreased as manganese exposure time increased.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- manganese exposuree0
- Gene
- IDHe0
- Outcome
- fresh weight IDH activitiese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the time of manganese exposure increased, the fresh weight IDH activities in wheat and tobacco decreased.”
Claim · model-written summary
Tobacco IDH activity decreased as manganese exposure time increased.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- manganese exposuree0
- Gene
- IDHe0
- Outcome
- fresh weight IDH activitiese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the time of manganese exposure increased, the fresh weight IDH activities in wheat and tobacco decreased.”
Claim · model-written summary
Wheat control IDH activity remained similar throughout the 24 hr test.
- Taxon
- WheatTriticum aestivumt0
- Gene
- IDHe1
- Outcome
- enzyme activitiese0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both control groups had similar enzyme activities every 6 hr over the 24 hr test period”
e1“As the time of manganese exposure increased, the fresh weight IDH activities in wheat and tobacco decreased.”
t0“Wheat”
Claim · model-written summary
Tobacco control IDH activity remained similar throughout the 24 hr test.
- Taxon
- TobaccoNicotiana tabacumt0
- Outcome
- enzyme activitiese0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both control groups had similar enzyme activities every 6 hr over the 24 hr test period”
t0“Tobacco”
Claim · model-written summary
Wheat IDH activity decrease seemed related to increased leaf manganese.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- leaf tissuee0
- Compound
- manganesee0
- Outcome
- decrease in IDH activitye0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in IDH activity of wheat and tobacco plants in experimental groups seemed to be related to an increase of the manganese in the leaf tissue.”
Claim · model-written summary
Tobacco IDH activity decrease seemed related to increased leaf manganese.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leaf tissuee0
- Compound
- manganesee0
- Outcome
- decrease in IDH activitye0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in IDH activity of wheat and tobacco plants in experimental groups seemed to be related to an increase of the manganese in the leaf tissue.”
Claim · model-written summary
Wheat IDH activity decreased more slowly than tobacco IDH activity.
- Taxon
- wheatTriticum aestivume0
- Compound
- manganesee0
- Outcome
- IDH activitye0
- Direction
- slower decreasee0
- Comparator
- tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The slower decrease in the IDH activity of wheat and the faster decrease in the IDH activity of tobacco appeared to correspond to manganese levels in the respective tissues.”
Claim · model-written summary
Tobacco IDH activity decreased faster than wheat IDH activity.
- Taxon
- tobaccoNicotiana tabacume0
- Compound
- manganesee0
- Outcome
- IDH activitye0
- Direction
- faster decreasee0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The slower decrease in the IDH activity of wheat and the faster decrease in the IDH activity of tobacco appeared to correspond to manganese levels in the respective tissues.”
Claim · model-written summary
Wheat appeared more tolerant of high manganese in growth media than tobacco.
- Taxon
- wheatTriticum aestivume0
- Outcome
- tolerate the higher manganese concentratione0
- Direction
- bettere0
- Comparator
- tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat is able to tolerate the higher manganese concentration in the growth media better than tobacco”
The same questions in other papers
manganese atom · growth · Triticum aestivum (wheat)Results differ
7 papers in the same direction as this paper · 24 in the opposite direction
- positive
- positive
- positive
28 papers more in this group
See all 32 papers →manganese atom · growth · Nicotiana tabacum (tobacco)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
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.