Abstract
), as an energy crop, exhibits a valuable potential to develop Cd polluted sites due to its use as a biofuel rather than as food and forage. Previously, via a screening for Cd-tolerant ryegrass, the two most extreme cultivars (IdyII and Harukaze) with high and low Cd tolerance during seed germination, respectively, were selected. However, the underlying mechanism for Cd tolerance was not well investigated. In this study, we comparatively investigated the growth, physiological responses, and Cd uptake and translocation of IdyII and Harukaze when the seedlings were exposed to a Cd (0-100 μM) solution for 12 days. As expected, excess Cd inhibited seedling growth and was accompanied by an accumulation of malondialdehyde (MDA) and reduced photosynthetic pigments in both cultivars. The effects of Cd on the uptake and translocation of other nutrient elements (Zn, Fe, Mn and Mg) were dependent on Cd concentrations, cultivars, plant tissues and elements. Compared with Harukaze, IdyII exhibited better performance with less MDA and higher pigment content. Furthermore, IdyII was less efficient in Cd uptake and translocation compared to Harukaze, which might be explained by the higher non-protein thiols content in its roots. Taken together, our data indicate that IdyII is more tolerant than Harukaze, which partially resulted from the differences in Cd uptake and translocation.
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Claims 10
Claim · model-written summary
Excess cadmium inhibited seedling growth in both cultivars.
- Taxon
- Italian ryegrass
Lolium multiflorumt0 - Material
- both cultivarse0
- Treatment
- excess Cde0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess Cd inhibited seedling growth and was accompanied by an accumulation of malondialdehyde (MDA) and reduced photosynthetic pigments in both cultivars”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
Excess cadmium increased malondialdehyde in both cultivars.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Treatment
- excess Cde0
- Outcome
- malondialdehyde (MDA)e0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess Cd inhibited seedling growth and was accompanied by an accumulation of malondialdehyde (MDA) and reduced photosynthetic pigments in both cultivars”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
Excess cadmium reduced photosynthetic pigments in both cultivars.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Treatment
- excess Cde0
- Outcome
- photosynthetic pigmentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess Cd inhibited seedling growth and was accompanied by an accumulation of malondialdehyde (MDA) and reduced photosynthetic pigments in both cultivars”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
Cadmium effects on uptake and translocation of Zn, Fe, Mn and Mg depended on concentration, cultivar, tissue and element.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Treatment
- Cde0
- Outcome
- uptake and translocation of other nutrient elements (Zn, Fe, Mn and Mg)e0
- Qualifier
- dependent on Cd concentrations, cultivars, plant tissues and elementse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of Cd on the uptake and translocation of other nutrient elements (Zn, Fe, Mn and Mg) were dependent on Cd concentrations, cultivars, plant tissues and elements”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
IdyII had less malondialdehyde than Harukaze.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Outcome
- MDAe0
- Direction
- lesse0
- Comparator
- Harukazee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with Harukaze, IdyII exhibited better performance with less MDA and higher pigment content”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
IdyII had higher pigment content than Harukaze.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Outcome
- pigment contente0
- Direction
- highere0
- Comparator
- Harukazee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with Harukaze, IdyII exhibited better performance with less MDA and higher pigment content”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
IdyII had lower cadmium uptake than Harukaze.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Outcome
- Cd uptakee0
- Direction
- less efficiente0
- Comparator
- Harukazee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IdyII was less efficient in Cd uptake and translocation compared to Harukaze”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
IdyII had lower cadmium translocation than Harukaze.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Outcome
- Cd uptake and translocatione0
- Direction
- less efficiente0
- Comparator
- Harukazee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IdyII was less efficient in Cd uptake and translocation compared to Harukaze”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
Higher root non-protein thiols may explain lower cadmium uptake and translocation in IdyII.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Organ / stage
- rootse0
- Compound
- non-protein thiolse0
- Outcome
- Cd uptake and translocatione0
- Direction
- less efficiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IdyII was less efficient in Cd uptake and translocation compared to Harukaze, which might be explained by the higher non-protein thiols content in its roots”
t0“Italian ryegrass ( Lolium multiflorum )”
Claim · model-written summary
The authors conclude that IdyII is more cadmium tolerant than Harukaze, partly due to uptake and translocation differences.
- Taxon
- Italian ryegrassLolium multiflorumt0
- Material
- IdyIIe0
- Outcome
- tolerante0
- Direction
- moree0
- Qualifier
- partially resulted from the differences in Cd uptake and translocatione0
- Comparator
- Harukazee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IdyII is more tolerant than Harukaze, which partially resulted from the differences in Cd uptake and translocation”
t0“Italian ryegrass ( Lolium multiflorum )”
The same questions in other papers
cadmium atom · growth · Lolium multiflorum (Italian ryegrass)Results agree
2 papers in the same direction as this paper
- no effect
- 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.