Abstract
Selenium (Se) deficiency in human and animal nutrition is primarily due to low levels of Se in soils. It can be prevented by enriching crops, such as wheat, with Se through agronomic biofortification. Although Se is not essential for plants, it shows a dual effect on their metabolism depending on its concentration. This study aimed to elucidate the impact of five different concentrations (0.4, 4, 20, 40, and 400 mg/kg) of selenate and selenite on the oxidative status and antioxidative response of wheat (Triticum aestivum L., cv. Kraljica) shoots and roots. According to morpho-physiological analyses, selenite was found to have a lower toxicity threshold than selenate. The measurement of oxidative stress biomarkers showed that Se did not cause oxidative damage to wheat seedlings due to the activation of detoxification mechanisms at the biochemical level, which depended on the type of tissue, concentration, and form of applied Se. Treatment with 20 mg/kg of selenate can be recommended for wheat seedling biofortification due to a sufficient increase in Se accumulation in shoots without signs of toxicity. These results contribute to a better understanding of wheat seedlings’ physiological and biochemical responses to Se and the development of more effective biofortification strategies.
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Claims 5
Claim · model-written summary
Selenite had a lower toxicity threshold than selenate.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- selenitee0
- Outcome
- toxicity thresholde0
- Direction
- lowere0
- Comparator
- selenatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenite was found to have a lower toxicity threshold than selenate”
t0“Wheat Seedlings”
Claim · model-written summary
Selenium did not cause oxidative damage in wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- See0
- Outcome
- oxidative damagee0
- Direction
- did not causee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se did not cause oxidative damage to wheat seedlings”
Claim · model-written summary
Detoxification response depended on tissue, concentration, and selenium form.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- form of applied See0
- Outcome
- activation of detoxification mechanismse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activation of detoxification mechanisms at the biochemical level, which depended on the type of tissue, concentration, and form of applied Se”
t0“Wheat Seedlings”
Claim · model-written summary
The authors recommend 20 mg/kg selenate for wheat seedling biofortification.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 20 mg/kg of selenatee0
- Outcome
- wheat seedling biofortificatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 20 mg/kg of selenate can be recommended for wheat seedling biofortification”
Claim · model-written summary
Selenium accumulated more in shoots without toxicity under the recommended treatment.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Se accumulation in shootse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a sufficient increase in Se accumulation in shoots without signs of toxicity”
t0“Wheat Seedlings”
The same questions in other papers
selenium atom · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 10 in the opposite direction
- negative
- no effect
- positive
9 papers more in this group
See all 13 papers →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.