Abstract
Selenium (Se) is an example of an essential element becoming more and more insufficient in food crops as a result of intensive plant production in many countries. Se is an essential biological micronutrient in diet of animals and humans, and plant foods are important sources of dietary Se. It is an essential constituent of several enzymes in which it is present in the form of the unusual amino acid selenocysteine (SeCys). Then, engineering food crops to accumulate higher levels of Se would provide adequate Se to target population. In this study, two species of soluble inorganic selenium forms, selenite (Se IV ) and selenate (Se VI ) at different concentrations were investigated on sunflower plants that were growing in nutrient solutions during 3 weeks and at the end of the experiment, amounts of SLA for first and second leaves of sunflower were measured. In accordance with the results that we observed, our regarded Se concentrations in Se IV form have not been had positive effect on sunflower plants. Whereas samples that had been treated with 0.3 mg.L -1 Se VI , had the high SLA amount and for second leaves, this increase was significantly. Although high level of 0.9 mg.L -1 and 3 mg.L -1 Se VI had negative affect on growth of the samples that had been treated by them.
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Claims 5
Claim · model-written summary
Selenite concentrations did not positively affect sunflower.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Se concentrations in Se IV forme0
- Outcome
- sunflower plantse0
- Direction
- not been had positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se concentrations in Se IV form have not been had positive effect on sunflower plants”
Claim · model-written summary
At 0.3 mg.L -1 selenate, sunflower SLA was high.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 0.3 mg.L -1 Se VIe0
- Outcome
- SLA amounte0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“samples that had been treated with 0.3 mg.L -1 Se VI , had the high SLA amount”
t0“Sunflower Plants”
Claim · model-written summary
At 0.3 mg.L -1 selenate, SLA increase in second leaves was significant.
- Taxon
- SunflowerHelianthus annuust0
- Organ / stage
- second leavese0
- Treatment
- 0.3 mg.L -1 Se VIe1
- Outcome
- second leavese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for second leaves, this increase was significantly”
e1“treated with 0.3 mg.L -1 Se VI”
t0“Sunflower Plants”
Claim · model-written summary
At 0.9 mg.L -1 selenate, growth was negatively affected.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 0.9 mg.L -1e0
- Outcome
- growthe0
- Direction
- negative affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high level of 0.9 mg.L -1 and 3 mg.L -1 Se VI had negative affect on growth of the samples”
t0“Sunflower Plants”
Claim · model-written summary
At 3 mg.L -1 selenate, growth was negatively affected.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 3 mg.L -1 Se VIe0
- Outcome
- growthe0
- Direction
- negative affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high level of 0.9 mg.L -1 and 3 mg.L -1 Se VI had negative affect on growth of the samples”
t0“Sunflower Plants”
The same questions in other papers
selenium atom · growth · Helianthus annuus (common sunflower)Results agree
3 papers in the same direction as this paper
- 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.