Abstract
The risk of cotton production on arable land contaminated with heavy metals has increased in recent years. Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops. Here, a potted plant experiment was performed to study Cd-induced alterations in the cottonseed kernel gossypol content and pigment gland structure at maturity in two transgenic cotton cultivars (ZD-90 and SGK3) and an upland cotton standard genotype (TM-1). The results showed that Cd accumulation in cottonseed kernels increased with increasing Cd levels in the soil. The seed kernel Cd content in plants grown on Cd-treated soils was 10-20 times greater than the amount in the corresponding controls. There was a significant difference in Cd accumulation in cottonseed kernels at the 400 and 600 μM Cd levels. Cd accumulation was higher in SGK3 and ZD-90 than in TM-1. However, the gossypol content in cottonseed kernels was lower in SGK3 and ZD-90 than in TM-1. There was a negative correlation (r = 0.550) between Cd accumulation and the gossypol content in cottonseed kernels. The density of cottonseed kernel pigment glands decreased under Cd stress. This is consistent with the change in gossypol content, which decreased under Cd stress. The damage of the cultivars ZD-90 and SGK3 from Cd poisoning was relatively low under Cd stress, while TM-1 was seriously affected and exhibited Cd sensitivity. Further studies are necessary to understand the cause of the reduced gossypol content in cotton seeds under Cd stress.
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Claims 13
Claim · model-written summary
Cd accumulation in cottonseed kernels increased with increasing soil Cd levels.
- Taxon
- Cotton
Gossypium hirsutume0 - Organ / stage
- cottonseed kernelse1
- Treatment
- increasing Cd levels in the soile1
- Outcome
- Cd accumulation in cottonseed kernelse1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e1“Cd accumulation in cottonseed kernels increased with increasing Cd levels in the soil”
Claim · model-written summary
Seed kernel Cd content on Cd-treated soils was 10-20 times greater than in the corresponding controls.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- Cd-treated soilse2
- Outcome
- seed kernel Cd contente2
- Direction
- greatere2
- Value
- 10-20 timese2
- Comparator
- the corresponding controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e2“The seed kernel Cd content in plants grown on Cd-treated soils was 10-20 times greater than the amount in the corresponding controls”
Claim · model-written summary
Cd accumulation in cottonseed kernels differed significantly at 400 and 600 μM Cd.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- 400 and 600 μM Cd levelse3
- Outcome
- Cd accumulation in cottonseed kernelse3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e3“There was a significant difference in Cd accumulation in cottonseed kernels at the 400 and 600 μM Cd levels”
Claim · model-written summary
Cd accumulation was higher in SGK3 than in TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- SGK3e4
- Outcome
- Cd accumulatione4
- Direction
- highere4
- Comparator
- TM-1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e4“Cd accumulation was higher in SGK3 and ZD-90 than in TM-1”
Claim · model-written summary
Cd accumulation was higher in ZD-90 than in TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- ZD-90e4
- Outcome
- Cd accumulatione4
- Direction
- highere4
- Comparator
- TM-1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e4“Cd accumulation was higher in SGK3 and ZD-90 than in TM-1”
Claim · model-written summary
Gossypol content in cottonseed kernels was lower in SGK3 than in TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- SGK3e5
- Outcome
- gossypol content in cottonseed kernelse5
- Direction
- lowere5
- Comparator
- TM-1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e5“the gossypol content in cottonseed kernels was lower in SGK3 and ZD-90 than in TM-1”
Claim · model-written summary
Gossypol content in cottonseed kernels was lower in ZD-90 than in TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- ZD-90e5
- Outcome
- gossypol content in cottonseed kernelse5
- Direction
- lowere5
- Comparator
- TM-1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e5“the gossypol content in cottonseed kernels was lower in SGK3 and ZD-90 than in TM-1”
Claim · model-written summary
Cd accumulation and gossypol content in cottonseed kernels were negatively correlated (r = 0.550).
- Taxon
- CottonGossypium hirsutume0
- Organ / stage
- cottonseed kernelse6
- Treatment
- Cd accumulatione6
- Outcome
- gossypol content in cottonseed kernelse6
- Direction
- negative correlatione6
- Value
- r = 0.550e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e6“There was a negative correlation (r = 0.550) between Cd accumulation and the gossypol content in cottonseed kernels”
Claim · model-written summary
Pigment gland density in cottonseed kernels decreased under Cd stress.
- Taxon
- CottonGossypium hirsutume0
- Organ / stage
- cottonseed kernele7
- Treatment
- Cd stresse7
- Outcome
- density of cottonseed kernel pigment glandse7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e7“The density of cottonseed kernel pigment glands decreased under Cd stress”
Claim · model-written summary
Gossypol content decreased under Cd stress.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- Cd stresse1
- Outcome
- gossypol contente1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e1“the change in gossypol content, which decreased under Cd stress”
Claim · model-written summary
Cultivar ZD-90 showed relatively low damage under Cd stress, compared with TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- ZD-90e1
- Treatment
- Cd stresse1
- Outcome
- damagee1
- Direction
- relatively lowe1
- Comparator
- TM-1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e1“The damage of the cultivars ZD-90 and SGK3 from Cd poisoning was relatively low under Cd stress”
e2“while TM-1 was seriously affected and exhibited Cd sensitivity”
Claim · model-written summary
Cultivar SGK3 showed relatively low damage under Cd stress, compared with TM-1.
- Taxon
- CottonGossypium hirsutume0
- Material
- SGK3e1
- Treatment
- Cd stresse1
- Outcome
- damagee1
- Direction
- relatively lowe1
- Comparator
- TM-1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e1“The damage of the cultivars ZD-90 and SGK3 from Cd poisoning was relatively low under Cd stress”
e2“while TM-1 was seriously affected and exhibited Cd sensitivity”
Claim · model-written summary
Cultivar TM-1 was seriously affected under Cd stress and showed Cd sensitivity, compared with ZD-90 and SGK3.
- Taxon
- CottonGossypium hirsutume0
- Material
- TM-1e2
- Treatment
- Cd stresse1
- Outcome
- seriously affectede2
- Comparator
- ZD-90 and SGK3e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton shows stronger and more extensive resistance to heavy metals, such as cadmium (Cd) than that of other major crops”
e1“The damage of the cultivars ZD-90 and SGK3 from Cd poisoning was relatively low under Cd stress”
e2“while TM-1 was seriously affected and exhibited Cd sensitivity”
The same questions in other papers
cadmium atom · nutrient: content · Gossypium hirsutum (cotton)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- negative
4 papers more in this group
See all 8 papers →cadmium atom · physiology: pigments · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- negative
- negative
heavy metal · physiology: pigments · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- negative
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.