Abstract
Here, we characterized silicon (Si) uptake and xylem loading in Oryza sativa, Zea mays, Helianthus annuus and Benincase hispida in a series of hydroponic experiments. Both active and passive Si-uptake components co-exist in all the plants tested. The active component is the major mechanism responsible for Si uptake in O. sativa and Z. mays. By contrast, passive uptake prevails in H. annuus and B. hispida at a higher external Si concentration (0.85 mM), while the active component constantly exists and contributes to the total Si uptake, especially at a lower external Si concentration (0.085 mM). Short experiments showed that Si uptake was significantly suppressed in O. sativa and Z. mays by metabolic inhibitors or low temperature, regardless of external Si concentrations. By contrast, Si uptake in H. annuus and B. hispida was inhibited more significantly by metabolic inhibitors or low temperature at lower (for example, 0.085 mM) than at higher (for example, 1.70 mM) external Si concentrations. It can be concluded that both active and passive Si-uptake components co-exist in O. sativa, Z. mays, H. annuus and B. hispida, with their relative contribution being dependent much upon both plant species and external Si concentrations.
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Claims 6
Claim · model-written summary
Active and passive silicon uptake coexisted in Oryza sativa.
- Taxon
- Oryza sativa
Oryza sativat0 - Outcome
- active and passive Si-uptake components co-existe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both active and passive Si-uptake components co-exist in all the plants tested”
t0“in Oryza sativa, Zea mays”
Claim · model-written summary
Active uptake was the major silicon uptake mechanism in O. sativa and Z. mays.
- Taxon
- O. sativa and Z. maysOryza sativa
Zea mayse0 - Outcome
- Si uptakee0
- Qualifier
- active componente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The active component is the major mechanism responsible for Si uptake in O. sativa and Z. mays”
Claim · model-written summary
Passive uptake prevailed in H. annuus and B. hispida at 0.85 mM external silicon.
Verbatim
e0“passive uptake prevails in H. annuus and B. hispida at a higher external Si concentration (0.85 mM)”
Claim · model-written summary
Active uptake contributed especially at 0.085 mM external silicon in H. annuus and B. hispida.
Verbatim
e0“passive uptake prevails in H. annuus and B. hispida at a higher external Si concentration (0.85 mM), while the active component constantly exists and contributes to the total Si uptake, especially at a lower external Si concentration (0.085 mM)”
Claim · model-written summary
Metabolic inhibitors or low temperature significantly suppressed silicon uptake in O. sativa and Z. mays.
- Taxon
- O. sativa and Z. maysOryza sativaZea mayse0
- Treatment
- metabolic inhibitors or low temperaturee0
- Outcome
- Si uptakee0
- Direction
- suppressede0
- Qualifier
- regardless of external Si concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si uptake was significantly suppressed in O. sativa and Z. mays by metabolic inhibitors or low temperature, regardless of external Si concentrations”
Claim · model-written summary
Metabolic inhibitors or low temperature inhibited silicon uptake in H. annuus and B. hispida more at low than high silicon concentration.
Verbatim
e0“Si uptake in H. annuus and B. hispida was inhibited more significantly by metabolic inhibitors or low temperature at lower (for example, 0.085 mM) than at higher (for example, 1.70 mM) external Si concentrations”
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See all 11 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.