Abstract
Cadmium (Cd) is a water-soluble metal pollutant that is not required for plants, but its mobility in the soil-plant continuum has lately attracted substantial interest due to its harmful effects on plants. It may cause serious morphological and physiological abnormalities in addition to inhibiting cotton growth. Thereby, the present study was conducted to explore the effect of different concentrations of Cd on the growth, morphological, biochemical, and physiological processes of cotton (Gossypium hirsutum L.) varieties. Understanding the morphological, biochemical, and physiological responses to Cd stress is necessary for a holistic approach to plant resistance mechanisms to Cd stress. A net house experiment was conducted to investigate the growth and adaptation mechanism of G. hirsutum varieties (V1: KLMNH-142 and V2: KL-FH-886) with different sowing times (i.e., early and late) under Cd stress (250 & mu;M, 500 & mu;M, 750 & mu;M, and 1000 & mu;M). The results showed that Cd predominately accumulated in the root at a higher dose, which consequently led to a reduction in the root biomass. During the late sowing time, transpiration rate (1.01 & PLUSMN; 0.04) and stomatal gas exchange rate (0.01 & PLUSMN; 0.003) were recorded to be significantly decreased by the application of Cd at 1000 & mu;M to variety V2 (KL-MNH886) as compared to the early sowing interval and respective control (1.63 & PLUSMN; 0.06). Calcium contents (1.4 & PLUSMN; 0.5) in the root were decreased in the early sowing period in V1 as compared to the late sowing period. Besides, the application of Cd (1000 & mu;M) has significantly decreased root soluble sugar (0.13 & PLUSMN; 0.001) in V1 under the late sowing period compared with the early sowing period and respective control. Cd not only led to the decrease in root anthocyanin but also changed the chlorophyll content. Our study proved that G. hirsutum has good tolerance to Cd stress during early time intervals as compared to the late time interval and is the best species for soil and ecological environment restoration.
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Claims 10
Claim · model-written summary
At higher cadmium dose, cadmium accumulated predominantly in roots.
- Taxon
- cotton
Gossypium hirsutume1 - Organ / stage
- roote0
- Treatment
- higher dosee0
- Outcome
- Cd predominately accumulated in the roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd predominately accumulated in the root at a higher dose”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Higher cadmium accumulation was linked to reduced root biomass.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Cde1
- Outcome
- root biomasse0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which consequently led to a reduction in the root biomass”
e1“effect of different concentrations of Cd on the growth, morphological, biochemical, and physiological processes of cotton”
Claim · model-written summary
At late sowing, 1000 & mu;M cadmium significantly decreased V2 transpiration rate relative to early sowing and control.
- Taxon
- cottonGossypium hirsutume1
- Material
- V2 (KL-MNH886)e0
- Treatment
- Cd at 1000 & mu;Me0
- Outcome
- transpiration ratee0
- Direction
- decreasede0
- Value
- 1.01 & PLUSMN; 0.04e0
- Qualifier
- late sowing timee0
- Comparator
- early sowing interval and respective controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the late sowing time, transpiration rate (1.01 & PLUSMN; 0.04) and stomatal gas exchange rate (0.01 & PLUSMN; 0.003) were recorded to be significantly decreased by the application of Cd at 1000 & mu;M to variety V2 (KL-MNH886) as compared to the early sowing interval and respective control (1.63 & PLUSMN; 0.06)”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
At late sowing, 1000 & mu;M cadmium significantly decreased V2 stomatal gas exchange rate.
- Taxon
- cottonGossypium hirsutume1
- Material
- V2 (KL-MNH886)e0
- Treatment
- Cd at 1000 & mu;Me0
- Outcome
- stomatal gas exchange ratee0
- Direction
- decreasede0
- Value
- 0.01 & PLUSMN; 0.003e0
- Comparator
- early sowing interval and respective controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the late sowing time, transpiration rate (1.01 & PLUSMN; 0.04) and stomatal gas exchange rate (0.01 & PLUSMN; 0.003) were recorded to be significantly decreased by the application of Cd at 1000 & mu;M to variety V2 (KL-MNH886) as compared to the early sowing interval and respective control (1.63 & PLUSMN; 0.06)”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Root calcium content in V1 was lower with early sowing than late sowing.
- Taxon
- cottonGossypium hirsutume1
- Material
- V1e0
- Organ / stage
- roote0
- Outcome
- Calcium contentse0
- Direction
- decreasede0
- Value
- 1.4 & PLUSMN; 0.5e0
- Comparator
- late sowing periode0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium contents (1.4 & PLUSMN; 0.5) in the root were decreased in the early sowing period in V1 as compared to the late sowing period”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Cadmium at 1000 & mu;M significantly decreased V1 root soluble sugar under late sowing.
- Taxon
- cottonGossypium hirsutume1
- Material
- V1e0
- Treatment
- Cd (1000 & mu;M)e0
- Outcome
- root soluble sugare0
- Direction
- decreasede0
- Value
- 0.13 & PLUSMN; 0.001e0
- Comparator
- early sowing period and respective controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Cd (1000 & mu;M) has significantly decreased root soluble sugar (0.13 & PLUSMN; 0.001) in V1 under the late sowing period compared with the early sowing period and respective control”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Cadmium decreased root anthocyanin.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Cde0
- Outcome
- root anthocyanine0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd not only led to the decrease in root anthocyanin but also changed the chlorophyll content”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Cadmium changed chlorophyll content, with the direction unspecified.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Cde0
- Outcome
- chlorophyll contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd not only led to the decrease in root anthocyanin but also changed the chlorophyll content”
e1“cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Cotton tolerated cadmium stress better at early than late sowing.
- Taxon
- G. hirsutumGossypium hirsutume0
- Treatment
- Cd stresse0
- Outcome
- tolerance to Cd stresse0
- Direction
- goode0
- Comparator
- late time intervale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. hirsutum has good tolerance to Cd stress during early time intervals as compared to the late time interval”
Claim · model-written summary
The authors identify G. hirsutum as suitable for soil and ecological restoration.
- Taxon
- G. hirsutumGossypium hirsutume0
- Outcome
- best species for soil and ecological environment restoratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. hirsutum has good tolerance to Cd stress during early time intervals as compared to the late time interval and is the best species for soil and ecological environment restoration”
The same questions in other papers
cadmium atom · physiology: osmolytes · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- negative
cadmium atom · physiology: gas exchange · 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.