Abstract
Four cultivars of Brassica juncea i.e. TM-4, TM-2, RH-30 and T-59 were screened for seed germination and seedling growth up to 15 days in the presence of 0.5-1.5 mM cadmium (Cd). The exposure to Cd reduced seed germination and seedling growth (root and shoot length and dry weight) in all four cultivars; the effect being more severe in TM-2 and RH-30 than in TM-4 and T-59 and at 3 d than at 7 d and 15 d. The cultivars TM-4 and T-59, with higher tolerance to Cd toxicity, were selected for further analysis including the estimation of nitrate reductase (NR) and peroxidase (POD) activities, total organic nitrogen (TON), total soluble proteins, proline levels and Cd accumulation. The NR activity and total soluble proteins decreased upon Cd exposure in a concentration dependent manner, whereas TON increased significantly in 3 d seedlings upon Cd exposure. The activity of POD and proline level increased significantly as compared to the respective controls. The level of Cd accumulation was higher in T-59 than in TM-4. Therefore, T-59 was found to be the most tolerant cultivar to Cd than other three cultivars possibly due to a better capacity to transport Cd in their vacuolar sink. The variety T-59, thus, appears to be suitable for Cd phytoremediation.
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Claims 11
Claim · model-written summary
Cd exposure reduced seed germination and seedling growth in all four cultivars.
- Taxon
- Brassica juncea
Brassica junceat0 - Material
- four cultivarse1
- Treatment
- exposure to Cde1
- Outcome
- seed germination and seedling growthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e1“The exposure to Cd reduced seed germination and seedling growth (root and shoot length and dry weight) in all four cultivars”
Claim · model-written summary
Cd effects on growth were more severe in TM-2 and RH-30 than in TM-4 and T-59.
- Taxon
- Brassica junceaBrassica junceat0
- Material
- TM-2 and RH-30e1
- Treatment
- exposure to Cde1
- Outcome
- effecte1
- Direction
- more severee1
- Comparator
- TM-4 and T-59e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e1“The exposure to Cd reduced seed germination and seedling growth (root and shoot length and dry weight) in all four cultivars; the effect being more severe in TM-2 and RH-30 than in TM-4 and T-59 and at 3 d than at 7 d and 15 d”
Claim · model-written summary
Cd effects on growth were more severe at 3 d than at 7 d and 15 d.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- exposure to Cde1
- Outcome
- effecte1
- Direction
- more severee1
- Qualifier
- at 3 de1
- Comparator
- 7 d and 15 de1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e1“The exposure to Cd reduced seed germination and seedling growth (root and shoot length and dry weight) in all four cultivars; the effect being more severe in TM-2 and RH-30 than in TM-4 and T-59 and at 3 d than at 7 d and 15 d”
Claim · model-written summary
TM-4 and T-59 had higher tolerance to Cd toxicity and were selected for further analysis.
- Taxon
- Brassica junceaBrassica junceat0
- Material
- TM-4 and T-59e2
- Outcome
- tolerance to Cd toxicitye2
- Direction
- highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e2“The cultivars TM-4 and T-59, with higher tolerance to Cd toxicity, were selected for further analysis”
Claim · model-written summary
Cd exposure decreased NR activity and total soluble proteins in a concentration-dependent manner.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- Cd exposuree3
- Outcome
- NR activity and total soluble proteinse3
- Direction
- decreasede3
- Qualifier
- in a concentration dependent mannere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e3“The NR activity and total soluble proteins decreased upon Cd exposure in a concentration dependent manner”
Claim · model-written summary
Cd exposure significantly increased TON in 3 d seedlings.
- Taxon
- Brassica junceaBrassica junceat0
- Organ / stage
- 3 d seedlingse3
- Treatment
- Cd exposuree3
- Outcome
- TONe3
- Direction
- increased significantlye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e3“whereas TON increased significantly in 3 d seedlings upon Cd exposure”
Claim · model-written summary
Cd exposure significantly increased POD activity and proline level compared with the controls.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- Cd exposuree3
- Outcome
- activity of POD and proline levele4
- Direction
- increased significantlye4
- Comparator
- respective controlse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e3“whereas TON increased significantly in 3 d seedlings upon Cd exposure”
e4“The activity of POD and proline level increased significantly as compared to the respective controls”
Claim · model-written summary
T-59 accumulated more Cd than TM-4.
- Taxon
- Brassica junceaBrassica junceat0
- Material
- T-59e5
- Outcome
- level of Cd accumulatione5
- Direction
- highere5
- Comparator
- TM-4e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e5“The level of Cd accumulation was higher in T-59 than in TM-4”
Claim · model-written summary
T-59 was the most tolerant cultivar to Cd among the four cultivars.
- Taxon
- Brassica junceaBrassica junceat0
- Material
- T-59e6
- Outcome
- tolerant cultivar to Cde6
- Direction
- most tolerante6
- Comparator
- other three cultivarse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e6“Therefore, T-59 was found to be the most tolerant cultivar to Cd than other three cultivars possibly due to a better capacity to transport Cd in their vacuolar sink”
Claim · model-written summary
A better capacity to transport Cd into the vacuolar sink may explain the Cd tolerance of T-59.
- Taxon
- Brassica junceaBrassica junceat0
- Outcome
- tolerant cultivar to Cde6
- Qualifier
- a better capacity to transport Cd in their vacuolar sinke6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e6“Therefore, T-59 was found to be the most tolerant cultivar to Cd than other three cultivars possibly due to a better capacity to transport Cd in their vacuolar sink”
Claim · model-written summary
T-59 appears suitable for Cd phytoremediation.
- Taxon
- Brassica junceaBrassica junceat0
- Material
- T-59e7
- Outcome
- suitable for Cd phytoremediatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Genotypic variation in Brassica juncea (L.) Czern. cultivars in growth, nitrate assimilation, antioxidant responses and phytoremediation potential during cadmium stress.”
e7“The variety T-59, thus, appears to be suitable for Cd phytoremediation”
The same questions in other papers
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- negative
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3 papers in the same direction as this paper
- negative
- negative
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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.