Abstract
The effects of long-term cold (5/3 °C) and salicylic acid (SA) (0.1 mM) treatments on the diurnal pattern of nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves were investigated. When the activities with cold treatment are compared to the control (20/15 °C), NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period. The cold treatment also affected the timing of circadian rhythm in the diurnal pattern of NR activity. When the activities with SA treatments are compared to control and cold, it was determined that SA increases NR activity in the light period of control while SA decreases NR activity in the light period of cold.
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Claims 5
Claim · model-written summary
Cold decreased nitrate reductase activity in the light period.
- Taxon
- spinach
Spinacia oleraceae0e1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NR activity was decreased by 5 °C in the light period”
e1“nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves”
e2“NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period”
Claim · model-written summary
Cold decreased nitrate reductase activity in the dark period.
- Taxon
- spinachSpinacia oleraceae0e1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and by 3 °C in the dark period”
e1“nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves”
e2“NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period”
Claim · model-written summary
Cold affected the timing of the circadian rhythm of nitrate reductase activity.
- Taxon
- spinachSpinacia oleraceae0e1e2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cold treatment also affected the timing of circadian rhythm in the diurnal pattern of NR activity”
e1“nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves”
e2“NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period”
Claim · model-written summary
Salicylic acid increased nitrate reductase activity in light under control temperature.
- Taxon
- spinachSpinacia oleraceae0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA increases NR activity in the light period of control”
e1“nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves”
e2“NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period”
Claim · model-written summary
Salicylic acid decreased nitrate reductase activity in light under cold conditions.
- Taxon
- spinachSpinacia oleraceae0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA decreases NR activity in the light period of cold”
e1“nitrate reductase (NR) activity in spinach (Spinacia oleracea L. cv. Gladiator) leaves”
e2“NR activity was decreased by 5 °C in the light period and by 3 °C in the dark period”
The same questions in other papers
salicylic acid · physiology: enzyme activity · Spinacia oleracea (spinach)Results agree
1 paper in the same direction as this paper
- 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.