Abstract
The production of reactive oxygen species (ROS) and the ways by which ROS are generated are very important facts related to heavy metal toxicity in plants. In this work, superoxide anion (O2 .-) generation diminished in cadmium treated sunflower (Helianthus annuus L.) leaf discs, and this reduction was time and Cd-concentration dependent. In line with these findings, we observed that NADPH-dependent oxidase activity was significantly inhibited by 0.1 and 0.5 mM Cd2+ treatments and the expression of the NADPH oxidase putative gene related to O2 .- synthesis in sunflower leaves was 83 % inhibited by 0.1 mM CdCl2 and almost completely depleted by 0.5 mM CdCl2.
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Claims 4
Claim · model-written summary
Cadmium reduced superoxide generation in sunflower leaf discs in a time- and concentration-dependent manner.
- Taxon
- sunflower
Helianthus annuuse0 - Organ / stage
- leaf discse0
- Treatment
- cadmiume0
- Outcome
- superoxide anion (O2 .-) generatione0
- Direction
- diminishede0
- Qualifier
- time and Cd-concentration dependente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“superoxide anion (O2 .-) generation diminished in cadmium treated sunflower (Helianthus annuus L.) leaf discs, and this reduction was time and Cd-concentration dependent.”
Claim · model-written summary
Cd2+ at 0.1 and 0.5 mM significantly inhibited NADPH-dependent oxidase activity.
- Treatment
- 0.1 and 0.5 mM Cd2+ treatmentse0
- Outcome
- NADPH-dependent oxidase activitye0
- Direction
- inhibitede0
Not reportedTaxonComparator
Verbatim
e0“NADPH-dependent oxidase activity was significantly inhibited by 0.1 and 0.5 mM Cd2+ treatments”
t0“sunflower leaves”
Claim · model-written summary
0.1 mM CdCl2 inhibited putative NADPH oxidase gene expression by 83%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 0.1 mM CdCl2e0
- Gene
- NADPH oxidase putative genee0
- Outcome
- expressione0
- Direction
- inhibitede0
- Value
- 83 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression of the NADPH oxidase putative gene related to O2 .- synthesis in sunflower leaves was 83 % inhibited by 0.1 mM CdCl2”
Claim · model-written summary
0.5 mM CdCl2 almost completely depleted putative NADPH oxidase gene expression.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 0.5 mM CdCl2e0
- Gene
- NADPH oxidase putative genee0
- Outcome
- expressione0
- Direction
- depletede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression of the NADPH oxidase putative gene related to O2 .- synthesis in sunflower leaves was 83 % inhibited by 0.1 mM CdCl2 and almost completely depleted by 0.5 mM CdCl2.”
The same questions in other papers
cadmium atom · physiology: oxidative · Helianthus annuus (common sunflower)Results differ
9 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- negative
7 papers more in this group
See all 11 papers →cadmium(2+) · physiology: enzyme activity · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- negative
cadmium dichloride · molecular: expression · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- negative
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.