Abstract
Selenium (Se) uptake by plants depends on its form and salicylic acid (SA) can increase the efficiency of plant biofortification in Se. This study investigated the effects of selenite (Na2SeO3) and selenomethionine (SeMet) applied individually or together with SA on a total content of Se, Se speciation forms, yield and content of sugars and ascorbic acid of lettuce, as well as activity of selenocysteine methyltransferase (smt) and methionine methyltransferase (mmt) genes of the Se metabolic pathway. Lettuce was grown in the nutrient film technique (NFT) system. Se and SA were used at doses of 0.5 and 10.0 mg dm−3 of the nutrient solution, respectively. The treatments were: 1. control, 2. Na2SeO3, 3. Na2SeO3 + SA, 4. SeMet, 5. SeMet + SA, 6. SA. Se was accumulated more in the roots than the leaves. SeMet was more effective in biofortification than Na2SeO3. SA enhanced Se uptake, especially organic Se. Plants supplied with SeMet alone or SeMet + SA accumulated in their leaves mainly SeMet and methylselenocysteine (MeSeCys), while those treated with Na2SeO3 or Na2SeO3 + SA accumulated MeSeCys and selenite (SeO3−2). The roots showed no expression of smt, while the expression of two mmt genes was independent of either Se or SA. The leaves of plants supplied with Na2SeO3 demonstrated the strongest expression of mmt and smt.
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Claims 9
Claim · model-written summary
Selenium accumulated more in roots than leaves.
- Taxon
- Lettuce
Lactuca sativat0 - Organ / stage
- rootse0
- Outcome
- Se was accumulatede0
- Direction
- moree0
- Comparator
- leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se was accumulated more in the roots than the leaves”
t0“Lettuce”
Claim · model-written summary
SeMet was more effective for biofortification than Na2SeO3.
- Taxon
- LettuceLactuca sativat0
- Treatment
- SeMete0
- Outcome
- biofortificatione0
- Direction
- more effectivee0
- Comparator
- Na2SeO3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeMet was more effective in biofortification than Na2SeO3”
t0“Lettuce”
Claim · model-written summary
SA enhanced Se uptake, especially organic Se.
- Taxon
- LettuceLactuca sativat0
- Treatment
- SAe0
- Outcome
- Se uptakee0
- Direction
- enhancede0
- Qualifier
- especially organic See0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA enhanced Se uptake, especially organic Se”
t0“Lettuce”
Claim · model-written summary
Leaves supplied with SeMet contained mainly SeMet and MeSeCys.
- Taxon
- LettuceLactuca sativat0
- Organ / stage
- leavese0
- Treatment
- SeMet alone or SeMet + SAe0
- Outcome
- SeMet and methylselenocysteine (MeSeCys)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with SeMet alone or SeMet + SA accumulated in their leaves mainly SeMet and methylselenocysteine (MeSeCys)”
t0“Lettuce”
Claim · model-written summary
Leaves given Na2SeO3 accumulated MeSeCys and selenite.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Na2SeO3 or Na2SeO3 + SAe0
- Outcome
- MeSeCys and selenite (SeO3−2)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those treated with Na2SeO3 or Na2SeO3 + SA accumulated MeSeCys and selenite (SeO3−2)”
t0“Lettuce”
Claim · model-written summary
Roots showed no smt expression.
- Taxon
- LettuceLactuca sativat0
- Organ / stage
- rootse0
- Gene
- smte0
- Outcome
- no expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The roots showed no expression of smt”
t0“Lettuce”
Claim · model-written summary
Expression of two mmt genes was independent of Se and SA.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Se or SAe0
- Gene
- mmte0
- Outcome
- expression of two mmt genese0
- Direction
- independente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression of two mmt genes was independent of either Se or SA”
t0“Lettuce”
Claim · model-written summary
Na2SeO3-treated leaves had the strongest mmt expression.
- Taxon
- LettuceLactuca sativat0
- Organ / stage
- leavese0
- Treatment
- Na2SeO3e0
- Gene
- mmte0
- Outcome
- expression of mmte0
- Direction
- strongeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaves of plants supplied with Na2SeO3 demonstrated the strongest expression of mmt and smt”
t0“Lettuce”
Claim · model-written summary
Na2SeO3-treated leaves had the strongest smt expression.
- Taxon
- LettuceLactuca sativat0
- Organ / stage
- leavese0
- Treatment
- Na2SeO3e0
- Gene
- smte0
- Outcome
- expression of mmt and smte0
- Direction
- strongeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaves of plants supplied with Na2SeO3 demonstrated the strongest expression of mmt and smt”
t0“Lettuce”
The same questions in other papers
salicylic acid · nutrient: content · Lactuca sativa (garden lettuce)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.