Abstract
In field-grown sugar-beet concentration of insoluble oxalate was low in roots and high (about 12 per cent of ethanol insoluble material) in leaves, and for a particular leaf the concentration increased continuously during its life. Of the insoluble oxalate, 15–30 per cent was present as the magnesium salt and the remainder as the calcium salt. Oxalate contents of plants grown in culture solutions with nitrate as nitrogen source were similar to those of plants grown in soil, but when nitrogen was supplied as ammonium sulphate or ammonium nitrate both soluble and insoluble oxalate were low. Plants grown in soil with regular additions of ammonium sulphate or ammonium nitrate also had very low concentrations of soluble oxalate although insoluble oxalate was only slightly lower than with nitrate nitrogen. Disks of root or leaf tissue washed for several days in distilled water lost insoluble oxalate but when washed in tap water insoluble oxalate increased more than twofold. Addition of calcium and nitrate to the distilled water caused an increase of insoluble oxalate, while addition of potassium caused a decrease. Use of 14C labelled oxalate and washing experiments showed that oxalate can be metabolized by tissue disks and so is not necessarily a final product of metabolism. The accumulation of oxalate appears to be connected with the assimilation of nitrate and the preservation of the cation-anion balance of the plant.
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Claims 14
Claim · model-written summary
In field-grown sugar beet, insoluble oxalate was low in roots and high in leaves.
- Taxon
- sugar-beet
Beta vulgaris subsp. vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In field-grown sugar-beet concentration of insoluble oxalate was low in roots and high (about 12 per cent of ethanol insoluble material) in leaves”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Sugar beet leaf insoluble oxalate was about 12% of ethanol-insoluble material.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high (about 12 per cent of ethanol insoluble material) in leaves”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“concentration of insoluble oxalate was low in roots and high (about 12 per cent of ethanol insoluble material) in leaves”
Claim · model-written summary
Insoluble oxalate concentration increased continuously through the life of a sugar beet leaf.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for a particular leaf the concentration increased continuously during its life”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Magnesium salt made up 15–30% of insoluble oxalate, with the remainder as calcium salt.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the insoluble oxalate, 15–30 per cent was present as the magnesium salt and the remainder as the calcium salt”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Oxalate in nitrate-fed culture plants was similar to that in soil-grown plants.
- Taxon
- plantsViridiplantaee0t0
Verbatim
e0“Oxalate contents of plants grown in culture solutions with nitrate as nitrogen source were similar to those of plants grown in soil”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Ammonium sulphate or ammonium nitrate in culture solution yielded low soluble and insoluble oxalate.
- Taxon
- plantsViridiplantaee0t0e1
Verbatim
e0“when nitrogen was supplied as ammonium sulphate or ammonium nitrate both soluble and insoluble oxalate were low”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“Oxalate contents of plants grown in culture solutions with nitrate as nitrogen source were similar to those of plants grown in soil, but when nitrogen was supplied as ammonium sulphate or ammonium nitrate both soluble and insoluble oxalate were low”
Claim · model-written summary
Soil-grown plants receiving ammonium salts had very low soluble oxalate.
- Taxon
- PlantsViridiplantaee0t0
Verbatim
e0“Plants grown in soil with regular additions of ammonium sulphate or ammonium nitrate also had very low concentrations of soluble oxalate although insoluble oxalate was only slightly lower than with nitrate nitrogen”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Soil-grown plants receiving ammonium salts had slightly less insoluble oxalate than nitrate-fed plants.
- Taxon
- plantsViridiplantaee0t0e1
Verbatim
e0“insoluble oxalate was only slightly lower than with nitrate nitrogen”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“Plants grown in soil with regular additions of ammonium sulphate or ammonium nitrate also had very low concentrations of soluble oxalate although insoluble oxalate was only slightly lower than with nitrate nitrogen”
Claim · model-written summary
Root or leaf disks lost insoluble oxalate during distilled-water washing.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disks of root or leaf tissue washed for several days in distilled water lost insoluble oxalate”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“Disks of root or leaf tissue washed for several days in distilled water lost insoluble oxalate but when washed in tap water insoluble oxalate increased more than twofold”
Claim · model-written summary
Root or leaf disks gained more than twofold insoluble oxalate during tap-water washing.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when washed in tap water insoluble oxalate increased more than twofold”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“Disks of root or leaf tissue washed for several days in distilled water lost insoluble oxalate but when washed in tap water insoluble oxalate increased more than twofold”
Claim · model-written summary
Adding calcium and nitrate to distilled water increased insoluble oxalate.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of calcium and nitrate to the distilled water caused an increase of insoluble oxalate”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Adding potassium to distilled water decreased insoluble oxalate.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“addition of potassium caused a decrease”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
e1“Addition of calcium and nitrate to the distilled water caused an increase of insoluble oxalate, while addition of potassium caused a decrease”
Claim · model-written summary
Sugar beet tissue disks metabolized oxalate.
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oxalate can be metabolized by tissue disks”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
Claim · model-written summary
Oxalate accumulation appeared connected to nitrate assimilation and cation-anion balance.
Verbatim
e0“The accumulation of oxalate appears to be connected with the assimilation of nitrate and the preservation of the cation-anion balance of the plant”
t0“Accumulation of Oxalate in Tissues of Sugar-beet, and the Effect of Nitrogen Supply”
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See all 66 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.