Abstract
In order to study the effects of oxalic acids on plant growth and Pb accumulation in different parts of the plants of intercropping Arabis alpina and Zea mays, pot experiment was conducted to investigate the changes of oxalic acid contents of the plants and Pb accumulation through exogenous oxalic acid addition (0, 5, 25 and 50 mmol kg−1). The results showed the root biomass of intercropped A. alpina and total biomass of Z. mays increased by 3.22 folds and 2.97 folds with 5 mmol kg−1 oxalic acid treatment. The oxalic acid contents of shoots and root secretions decreased by 86.5% and 44.3%, respectively. The BCF (bio-accumulation factor) and TF (translocation factor) of intercropping A. alpina reduced under 25 − 50 mmol kg−1 oxalic acid treatments. There were relationships between exogenous oxalic acid treatment concentrations and oxalic acid contents of A. alpina shoots, Z. mays root secretions. The Pb contents of shoots of A. alpina and Z. mays were related to exogenous oxalic acid additions and oxalic acid contents of shoots. In general, 5 mmol kg−1 oxalic acid treatment, that can improve plant growth of intercropped A. alpina and Z. mays, which Pb translocation and accumulation of A. alpina were promoted, whereas Pb accumulation of A. alpina was inhibited with 25 − 50 mmol kg−1 concentrations addition. This study will provide a basis for promoting the application of phytoremediation techniques and efficient crop production in heavy metal contaminated areas.
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Claims 12
Claim · model-written summary
5 mmol kg−1 oxalic acid increased intercropped A. alpina root biomass 3.22 folds.
- Taxon
- A. alpina
Arabis alpinae0 - Treatment
- 5 mmol kg−1 oxalic acid treatmente0
- Outcome
- root biomasse0
- Direction
- increasede0
- Value
- 3.22 foldse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed the root biomass of intercropped A. alpina and total biomass of Z. mays increased by 3.22 folds and 2.97 folds with 5 mmol kg−1 oxalic acid treatment.”
Claim · model-written summary
5 mmol kg−1 oxalic acid increased Z. mays total biomass 2.97 folds.
- Treatment
- 5 mmol kg−1 oxalic acid treatmente0
- Outcome
- total biomasse0
- Direction
- increasede0
- Value
- 2.97 foldse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed the root biomass of intercropped A. alpina and total biomass of Z. mays increased by 3.22 folds and 2.97 folds with 5 mmol kg−1 oxalic acid treatment.”
Claim · model-written summary
Shoot oxalic acid content decreased 86.5%.
- Taxon
- Arabis alpina - Zea maysArabis alpinat0
- Organ / stage
- shootse0
- Outcome
- oxalic acid contents of shootse0
- Direction
- decreasede0
- Value
- 86.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oxalic acid contents of shoots and root secretions decreased by 86.5% and 44.3%, respectively.”
t0“Arabis alpina - Zea mays”
Claim · model-written summary
Root secretion oxalic acid content decreased 44.3%.
- Taxon
- Arabis alpina - Zea maysArabis alpinat0
- Organ / stage
- root secretionse0
- Outcome
- root secretionse0
- Direction
- decreasede0
- Value
- 44.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oxalic acid contents of shoots and root secretions decreased by 86.5% and 44.3%, respectively.”
t0“Arabis alpina - Zea mays”
Claim · model-written summary
A. alpina BCF decreased at higher oxalic acid doses.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- 25 − 50 mmol kg−1 oxalic acid treatmentse0
- Outcome
- BCF (bio-accumulation factor)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The BCF (bio-accumulation factor) and TF (translocation factor) of intercropping A. alpina reduced under 25 − 50 mmol kg−1 oxalic acid treatments.”
Claim · model-written summary
A. alpina TF decreased at higher oxalic acid doses.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- 25 − 50 mmol kg−1 oxalic acid treatmentse0
- Outcome
- TF (translocation factor)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The BCF (bio-accumulation factor) and TF (translocation factor) of intercropping A. alpina reduced under 25 − 50 mmol kg−1 oxalic acid treatments.”
Claim · model-written summary
Oxalic acid dose was related to A. alpina shoot oxalic acid content.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- exogenous oxalic acid treatment concentrationse0
- Outcome
- oxalic acid contents of A. alpina shootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were relationships between exogenous oxalic acid treatment concentrations and oxalic acid contents of A. alpina shoots, Z. mays root secretions.”
Claim · model-written summary
Oxalic acid dose was related to Z. mays root secretion oxalic acid content.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were relationships between exogenous oxalic acid treatment concentrations and oxalic acid contents of A. alpina shoots, Z. mays root secretions.”
Claim · model-written summary
A. alpina shoot Pb content was related to oxalic acid additions and shoot content.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- exogenous oxalic acid additionse0
- Outcome
- Pb contents of shootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Pb contents of shoots of A. alpina and Z. mays were related to exogenous oxalic acid additions and oxalic acid contents of shoots.”
Claim · model-written summary
Z. mays shoot Pb content was related to oxalic acid additions and shoot content.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Pb contents of shoots of A. alpina and Z. mays were related to exogenous oxalic acid additions and oxalic acid contents of shoots.”
Claim · model-written summary
5 mmol kg−1 oxalic acid promoted Pb translocation and accumulation in A. alpina.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- 5 mmol kg−1 oxalic acid treatmente0
- Outcome
- Pb translocation and accumulatione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“5 mmol kg−1 oxalic acid treatment, that can improve plant growth of intercropped A. alpina and Z. mays, which Pb translocation and accumulation of A. alpina were promoted”
Claim · model-written summary
Higher oxalic acid additions inhibited A. alpina Pb accumulation.
- Taxon
- A. alpinaArabis alpinae0
- Treatment
- 25 − 50 mmol kg−1 concentrations additione0
- Outcome
- Pb accumulatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pb accumulation of A. alpina was inhibited with 25 − 50 mmol kg−1 concentrations addition.”
The same questions in other papers
oxalic acid · growth · Zea mays (maize)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- 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.