Abstract
Crop production in red soil areas may be cut down by aluminum toxicity. Hydroponic cultures were conducted to investigate the role of exogenous organic acids in detoxification of aluminum in wheat ( Triticum aestivum L. cv. Scout 66 and Atlas 66). Treatment with Al 50 μmol/L for 24 h significantly depressed the root elongation of wheat seedlings and increased electrolyte leakage of root (Figs.1 and 2). The application of exogenous citrate or oxalate alleviated the inhibitory effect of Al on root elongation and reduced root electrolyte leakage of wheat seedlings exposed to Al 50 μmol/L (Table 1, Figs.1 and 2). The result of eriochrome cyanine R staining experiment showed strong staining in the apex in Scout 66 (Al-sensitive) wheat seedlings root with Al 50 μmol/L stress for 24 h, whereas those treated simultaneously with exogenous oxalate 100 μmol/L showed no staining (Fig.4). Viability of the root tip surface cells was measured by propidium iodide staining. The root cell viability was lowed by adding Al, but not by adding Al and oxalate together (Fig.3) . The split-root experiment showed that exogenous oxalate may be absorbed into seedlings by root and may play an important role in the internal Al detoxification.
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Claims 10
Claim · model-written summary
Aluminum depressed wheat seedling root elongation.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Al 50 μmol/L for 24 he0
- Outcome
- root elongatione0
- Direction
- depressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Al 50 μmol/L for 24 h significantly depressed the root elongation of wheat seedlings”
Claim · model-written summary
Aluminum increased root electrolyte leakage.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Al 50 μmol/L for 24 he0
- Outcome
- electrolyte leakage of roote0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Al 50 μmol/L for 24 h significantly depressed the root elongation of wheat seedlings and increased electrolyte leakage of root”
Claim · model-written summary
Exogenous citrate alleviated aluminum inhibition of root elongation.
- Taxon
- wheatTriticum aestivume1
- Treatment
- exogenous citratee0
- Outcome
- root elongatione0
- Direction
- alleviatede0
- Comparator
- Ale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of exogenous citrate or oxalate alleviated the inhibitory effect of Al on root elongation”
e1“root electrolyte leakage of wheat seedlings exposed to Al 50 μmol/L”
Claim · model-written summary
Exogenous oxalate alleviated aluminum inhibition of root elongation.
- Taxon
- wheatTriticum aestivume1
- Treatment
- oxalatee0
- Outcome
- root elongatione0
- Direction
- alleviatede0
- Comparator
- Ale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of exogenous citrate or oxalate alleviated the inhibitory effect of Al on root elongation”
e1“root electrolyte leakage of wheat seedlings exposed to Al 50 μmol/L”
Claim · model-written summary
Exogenous citrate reduced root electrolyte leakage under aluminum exposure.
- Taxon
- wheatTriticum aestivume0
- Treatment
- exogenous citratee0
- Outcome
- root electrolyte leakagee0
- Direction
- reducede0
- Comparator
- Al 50 μmol/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of exogenous citrate or oxalate alleviated the inhibitory effect of Al on root elongation and reduced root electrolyte leakage of wheat seedlings exposed to Al 50 μmol/L”
Claim · model-written summary
Exogenous oxalate reduced root electrolyte leakage under aluminum exposure.
- Taxon
- wheatTriticum aestivume0
- Treatment
- oxalatee0
- Outcome
- root electrolyte leakagee0
- Direction
- reducede0
- Comparator
- Al 50 μmol/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of exogenous citrate or oxalate alleviated the inhibitory effect of Al on root elongation and reduced root electrolyte leakage of wheat seedlings exposed to Al 50 μmol/L”
Claim · model-written summary
Aluminum stressed Scout 66 root apices stained strongly, whereas oxalate treated apices did not stain.
- Taxon
- wheatTriticum aestivume0
- Material
- Scout 66e0
- Treatment
- exogenous oxalate 100 μmol/Le0
- Outcome
- no staininge0
- Comparator
- Al 50 μmol/L stress for 24 he0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strong staining in the apex in Scout 66 (Al-sensitive) wheat seedlings root with Al 50 μmol/L stress for 24 h, whereas those treated simultaneously with exogenous oxalate 100 μmol/L showed no staining”
Claim · model-written summary
Aluminum lowered root cell viability.
- Taxon
- wheatTriticum aestivume1
- Treatment
- adding Ale0
- Outcome
- root cell viabilitye0
- Direction
- lowede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root cell viability was lowed by adding Al, but not by adding Al and oxalate together”
e1“strong staining in the apex in Scout 66 (Al-sensitive) wheat seedlings root”
Claim · model-written summary
Adding oxalate with aluminum did not lower root cell viability.
- Taxon
- wheatTriticum aestivume1
- Treatment
- adding Al and oxalate togethere0
- Outcome
- root cell viabilitye0
- Direction
- not by addinge0
- Comparator
- adding Ale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root cell viability was lowed by adding Al, but not by adding Al and oxalate together”
e1“strong staining in the apex in Scout 66 (Al-sensitive) wheat seedlings root”
Claim · model-written summary
Split-root results suggest oxalate may enter seedlings through roots and aid internal aluminum detoxification.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- roote0
- Treatment
- exogenous oxalatee0
- Outcome
- internal Al detoxificatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous oxalate may be absorbed into seedlings by root and may play an important role in the internal Al detoxification”
e1“strong staining in the apex in Scout 66 (Al-sensitive) wheat seedlings root”
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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.