Abstract
The aim of the experimental study is to analyse the consequence of carbon dioxide elevation on activity of nitrate reductase (NR; EC 1.6.6.1), nitrite reductase (NiR; EC 1.7.7.1), glutamate synthetase (GOGAT; EC 1.4.1.13) in leguminous Cyamopsis tetragonoloba leaves. Plants were exposed to different atmospheric carbon dioxide concentrations 300 ppm (ambient) and 490 ppm (an elevated) conditions. A decrease in activity of Nitrate Reductase (NR), Nitrite Reductase (NiR), Glutamate Synthetase (GOGAT) was found in elevated condition when compared to ambient condition. Plant nitrogen on dry weight basis was found to decrease under elevation with no significant change in soil nitrogen. Soil pH was found to change significantly under elevation, thus showing a decline in pH and promoting soil acidiosis. Total plant fresh weight (FW) and total plant dry weight (DW), Leaf area/cm2 were found increased in elevated condition. Thus, in Cyamopsis tetragonoloba plant it can be concluded that under carbon dioxide elevation Nitrate reductase, Nitrite reductase and Glutamate synthetase activity is suppressed due to a reduced amount of nitrate translocation and NADH availability for reduction in plant which is correlated with reduction in plant total nitrogen content where as plant growth and biomass is enhanced due to higher carbon fixation.
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 8
Claim · model-written summary
Elevated carbon dioxide decreased nitrate reductase, nitrite reductase, and glutamate synthetase activity.
- Taxon
- Cyamopsis tetragonoloba
Cyamopsis tetragonolobat0 - Treatment
- elevated conditione0
- Outcome
- activity of Nitrate Reductase (NR), Nitrite Reductase (NiR), Glutamate Synthetase (GOGAT)e0
- Direction
- decreasee0
- Comparator
- ambient conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A decrease in activity of Nitrate Reductase (NR), Nitrite Reductase (NiR), Glutamate Synthetase (GOGAT) was found in elevated condition when compared to ambient condition”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
Elevated carbon dioxide decreased plant nitrogen on a dry weight basis.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Treatment
- elevatione0
- Outcome
- Plant nitrogen on dry weight basise0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant nitrogen on dry weight basis was found to decrease under elevation”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
Elevated carbon dioxide produced no significant change in soil nitrogen.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Treatment
- elevatione0
- Outcome
- soil nitrogene0
- Direction
- no significant changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant nitrogen on dry weight basis was found to decrease under elevation with no significant change in soil nitrogen”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
Elevated carbon dioxide significantly lowered soil pH.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Treatment
- elevatione0
- Outcome
- Soil pHe0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH was found to change significantly under elevation, thus showing a decline in pH”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
Elevated carbon dioxide increased fresh weight, dry weight, and leaf area.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Treatment
- elevated conditione0
- Outcome
- Total plant fresh weight (FW) and total plant dry weight (DW), Leaf area/cm2e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total plant fresh weight (FW) and total plant dry weight (DW), Leaf area/cm2 were found increased in elevated condition”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
The authors attributed reduced reductase and synthetase activity to less nitrate translocation and NADH availability.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Outcome
- Nitrate reductase, Nitrite reductase and Glutamate synthetase activity is suppressede0
- Qualifier
- reduced amount of nitrate translocation and NADH availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate reductase, Nitrite reductase and Glutamate synthetase activity is suppressed due to a reduced amount of nitrate translocation and NADH availability for reduction in plant”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
The authors associated reduced enzyme activity with lower total plant nitrogen.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Organ / stage
- plante0
- Outcome
- plant total nitrogen contente0
- Direction
- reductione0
- Qualifier
- correlated with reductione0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which is correlated with reduction in plant total nitrogen content”
t0“Cyamopsis tetragonoloba”
Claim · model-written summary
The authors attributed enhanced growth and biomass to higher carbon fixation.
- Taxon
- Cyamopsis tetragonolobaCyamopsis tetragonolobat0
- Outcome
- plant growth and biomass is enhancede0
- Qualifier
- higher carbon fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth and biomass is enhanced due to higher carbon fixation”
t0“Cyamopsis tetragonoloba”