Abstract
Gross morphology, ultrastructure and distribution of minerals in sound and severely heat-damaged, elevator-stored rapeseeds (Brassica napus L.) were studied by electron microscopy and X-ray microanalysis. Sound seeds had surface reticulations and a thick seed coat of five layers: epidermis, palisade, crushed parenchyma, aleurone and inner crushed parenchyma. The aleurone cells in the seed coat and the embryonic cells contained many lipid droplets and protein bodies among the cytoplasmic organelles. Severely heat-damaged seeds had a more compressed, electron-dense seed coat with much surface debris which obscured the reticulations; embryonic tissues appeared distorted and shrunken. Aleurone cells in the seed coat and most embryonic cells were necrotic and had large structureless areas and abnormal protein bodies. In the coat of sound seeds, calcium, potassium, sulphur, silicon, magnesium and phosphorus were found in decreasing order of proportional amounts. In cotyledonous tissue the sequence was phosphorus, potassium, sulphur, magnesium and silicon with phosphorus in highest relative proportion. In severely heat-damaged seeds, cotyledonous protein bodies had lower proportions of phosphorus and sulphur, while the seed coat had a higher proportion of phosphorus and lower calcium when compared to sound seeds.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Sound seeds had surface reticulations and a five-layer coat.
- Taxon
- Brassica napus L.
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse1 - Organ / stage
- seed coate0
- Outcome
- surface reticulations and a thick seed coat of five layerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Sound seeds had surface reticulations and a thick seed coat of five layers: epidermis, palisade, crushed parenchyma, aleurone and inner crushed parenchyma”
e1“Brassica napus L.”
Claim · model-written summary
Aleurone and embryonic cells in sound seeds contained many lipid droplets and protein bodies.
- Taxon
- Brassica napus L.Brassica napuse1
- Organ / stage
- aleurone cellse0
- Outcome
- many lipid droplets and protein bodiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aleurone cells in the seed coat and the embryonic cells contained many lipid droplets and protein bodies among the cytoplasmic organelles”
e1“Brassica napus L.”
Claim · model-written summary
Heat-damaged seeds had a compressed electron-dense coat and distorted shrunken embryos.
- Taxon
- Brassica napus L.Brassica napuse1
- Treatment
- Severely heat-damagede0
- Outcome
- more compressed, electron-dense seed coat with much surface debrise0
- Direction
- more compressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Severely heat-damaged seeds had a more compressed, electron-dense seed coat with much surface debris which obscured the reticulations; embryonic tissues appeared distorted and shrunken”
e1“Brassica napus L.”
Claim · model-written summary
Heat-damaged aleurone and embryonic cells were necrotic with abnormal protein bodies.
- Taxon
- Brassica napus L.Brassica napuse1
- Organ / stage
- Aleurone cellse0
- Outcome
- necrotic and had large structureless areas and abnormal protein bodiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aleurone cells in the seed coat and most embryonic cells were necrotic and had large structureless areas and abnormal protein bodies”
e1“Brassica napus L.”
Claim · model-written summary
Minerals in sound seed coats ranked calcium, potassium, sulphur, silicon, magnesium, then phosphorus.
- Taxon
- Brassica napus L.Brassica napuse1
- Organ / stage
- coate0
- Outcome
- calcium, potassium, sulphur, silicon, magnesium and phosphoruse0
- Direction
- decreasing ordere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the coat of sound seeds, calcium, potassium, sulphur, silicon, magnesium and phosphorus were found in decreasing order of proportional amounts”
e1“Brassica napus L.”
Claim · model-written summary
Cotyledon minerals ranked phosphorus, potassium, sulphur, magnesium, then silicon.
- Taxon
- Brassica napus L.Brassica napuse1
- Organ / stage
- cotyledonous tissuee0
- Outcome
- phosphorus, potassium, sulphur, magnesium and silicone0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cotyledonous tissue the sequence was phosphorus, potassium, sulphur, magnesium and silicon with phosphorus in highest relative proportion”
e1“Brassica napus L.”
Claim · model-written summary
Heat-damaged seed protein bodies had lower phosphorus and sulphur proportions.
- Taxon
- Brassica napus L.Brassica napuse1
- Organ / stage
- cotyledonous protein bodiese0
- Treatment
- severely heat-damagede0
- Outcome
- proportions of phosphorus and sulphure0
- Direction
- lowere0
- Comparator
- sound seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In severely heat-damaged seeds, cotyledonous protein bodies had lower proportions of phosphorus and sulphur, while the seed coat had a higher proportion of phosphorus and lower calcium when compared to sound seeds”
e1“Brassica napus L.”
Claim · model-written summary
Heat-damaged seed coats had more phosphorus.
- Taxon
- Brassica napus L.Brassica napuse1
- Outcome
- proportion of phosphoruse0
- Direction
- highere0
- Comparator
- sound seedse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed coat had a higher proportion of phosphorus and lower calcium when compared to sound seeds”
e1“Brassica napus L.”
Claim · model-written summary
Heat-damaged seed coats had less calcium.
- Taxon
- Brassica napus L.Brassica napuse1
- Outcome
- calciume0
- Direction
- lowere0
- Comparator
- sound seedse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed coat had a higher proportion of phosphorus and lower calcium when compared to sound seeds”
e1“Brassica napus L.”
The same questions in other papers
heat · nutrient: content · Brassica napus (oilseed rape)Positive and negative results
1 in the opposite direction
- positive
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.