Abstract
Ferredoxin‐dependent glutamate synthase (EC 1.4.7.1) catalyzes an essential step in the pathway of glutamate biosynthesis. Exposing detached tomato ( Lycopersicon esculentum ) leaves for 6 h to 12 g l −1 NaCl resulted in a significant two‐fold increase in the activity of ferredoxin‐dependent glutamate synthase extracted from the leaves. Western blot studies demonstrated that salt treatment also increased the ferredoxin‐dependent glutamate synthase content of the leaves. A similar effect of salt on the concentration of this enzyme was found in the leaves of hydroponically‐grown tomato plants. The induction of ferredoxin‐dependent glutamate synthase under salt stress may provide the glutamate required for the proline synthesis which is a common response to salt stress.
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Claims 3
Claim · model-written summary
Salt exposure doubled glutamate synthase activity in detached tomato leaves.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- leavese0
- Treatment
- 12 g l −1 NaCle0
- Gene
- ferredoxin‐dependent glutamate synthasee0
- Outcome
- activity of ferredoxin‐dependent glutamate synthasee0
- Direction
- increasee0
- Value
- two‐folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposing detached tomato ( Lycopersicon esculentum ) leaves for 6 h to 12 g l −1 NaCl resulted in a significant two‐fold increase in the activity of ferredoxin‐dependent glutamate synthase extracted from the leaves.”
Claim · model-written summary
Salt treatment increased leaf glutamate synthase content.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- salt treatmente0
- Gene
- ferredoxin‐dependent glutamate synthasee0
- Outcome
- ferredoxin‐dependent glutamate synthase contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt treatment also increased the ferredoxin‐dependent glutamate synthase content of the leaves”
e1“detached tomato ( Lycopersicon esculentum ) leaves”
Claim · model-written summary
Hydroponic tomato leaves showed a similar salt effect on enzyme concentration.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- salte0
- Gene
- ferredoxin‐dependent glutamate synthasee1
- Outcome
- concentration of this enzymee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar effect of salt on the concentration of this enzyme was found in the leaves of hydroponically‐grown tomato plants.”
e1“ferredoxin‐dependent glutamate synthase content of the leaves”
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