Abstract
Increasing evidence shows that cadmium (Cd) toxicity causes severe perturbations on growth performance, physio-biochemical and molecular processes in crop plants. Molybdenum (Mo), an essential trace element, plays key roles in oxidative stress tolerance of higher plants. Hence, the present study has been conducted to investigate the possible role of Mo in alleviating Cd-induced inhibitions in two fragrant rice cultivars namely Guixiangzhan (GXZ) and Meixiangzhan-2 (MXZ-2). The results revealed that Mo application enhanced the plant dry biomass by 73.24% in GXZ and 58.09% in MXZ-2 under Cd stress conditions, suggesting that Mo supplementation alleviated Cd-induced toxicity effects in fragrant rice. The enhanced Cd-tolerance in fragrant rice plants prompted by Mo application could be ascribed to its ability to regulate Cd uptake and reduce Cd-induced oxidative stress as evident by lower hydrogen peroxide levels, electrolyte leakage and malondialdehyde contents in Cd-stressed plants. The ameliorative role of Mo against Cd-toxicity also reflected through its protection to the photosynthetic pigments, proline and soluble protein. Mo also induced antioxidant defense systems via maintaining higher contents of glutathione and ascorbate as well as enhancing the ROS-detoxifying enzymes such as catalase, peroxidase, superoxide dismutase and ascorbate peroxidase activities and up-regulating transcript abundance in both fragrant rice cultivars under Cd stress. Conclusively, Mo-mediated modulation of Cd toxicity in fragrant rice was through restricting Cd uptake, maintaining photosynthetic performance and alleviating oxidative damages via the strong anti-oxidative defense systems; however, GXZ cultivar is comparatively more Cd tolerant and Mo-efficient as evident from the less growth inhibition and biomass reduction as well as enhanced Mo-induced Cd stress tolerance and less oxidative damage than MXZ-2 fragrant rice cultivar.
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Claims 14
Claim · model-written summary
Molybdenum increased dry biomass by 73.24% in GXZ under cadmium stress.
- Taxon
- Rice
Oryza sativat0 - Material
- GXZe0
- Treatment
- Mo applicatione0
- Outcome
- plant dry biomasse0
- Direction
- enhancede0
- Value
- 73.24%e0
- Qualifier
- under Cd stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo application enhanced the plant dry biomass by 73.24% in GXZ and 58.09% in MXZ-2 under Cd stress conditions”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum increased dry biomass by 58.09% in MXZ-2 under cadmium stress.
- Taxon
- RiceOryza sativat0
- Material
- MXZ-2e0
- Treatment
- Mo applicatione0
- Outcome
- plant dry biomasse0
- Direction
- enhancede0
- Value
- 58.09%e0
- Qualifier
- under Cd stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo application enhanced the plant dry biomass by 73.24% in GXZ and 58.09% in MXZ-2 under Cd stress conditions”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum restricted cadmium uptake in fragrant rice.
Not reportedComparator
Verbatim
e0“Mo-mediated modulation of Cd toxicity in fragrant rice was through restricting Cd uptake”
Claim · model-written summary
Molybdenum lowered hydrogen peroxide levels under cadmium stress.
- Taxon
- RiceOryza sativat0
- Outcome
- hydrogen peroxide levelse0
- Direction
- lowere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower hydrogen peroxide levels, electrolyte leakage and malondialdehyde contents in Cd-stressed plants”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum lowered electrolyte leakage under cadmium stress.
- Taxon
- RiceOryza sativat0
- Outcome
- electrolyte leakagee0
- Direction
- lowere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower hydrogen peroxide levels, electrolyte leakage and malondialdehyde contents in Cd-stressed plants”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum lowered malondialdehyde contents under cadmium stress.
- Taxon
- RiceOryza sativat0
- Outcome
- malondialdehyde contentse0
- Direction
- lowere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower hydrogen peroxide levels, electrolyte leakage and malondialdehyde contents in Cd-stressed plants”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum protected photosynthetic pigments, proline and soluble protein against cadmium toxicity.
- Taxon
- RiceOryza sativat0
- Treatment
- Moe0
- Outcome
- photosynthetic pigments, proline and soluble proteine0
- Direction
- protectione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ameliorative role of Mo against Cd-toxicity also reflected through its protection to the photosynthetic pigments, proline and soluble protein.”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum maintained higher glutathione and ascorbate contents under cadmium stress.
- Taxon
- RiceOryza sativat0
- Treatment
- Moe0
- Outcome
- contents of glutathione and ascorbatee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo also induced antioxidant defense systems via maintaining higher contents of glutathione and ascorbate”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum enhanced catalase, peroxidase and superoxide dismutase activities under cadmium stress.
- Taxon
- RiceOryza sativat0
- Outcome
- catalase, peroxidase, superoxide dismutasee0
- Direction
- enhancinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing the ROS-detoxifying enzymes such as catalase, peroxidase, superoxide dismutase and ascorbate peroxidase activities”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum enhanced ascorbate peroxidase activity under cadmium stress.
- Taxon
- RiceOryza sativat0
- Outcome
- ascorbate peroxidase activitiese0
- Direction
- enhancinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing the ROS-detoxifying enzymes such as catalase, peroxidase, superoxide dismutase and ascorbate peroxidase activities”
t0“Fragrant Rice”
Claim · model-written summary
Molybdenum upregulated antioxidant enzyme transcript abundance in both cultivars under cadmium stress.
Not reportedTreatmentComparator
Verbatim
e0“up-regulating transcript abundance in both fragrant rice cultivars under Cd stress”
Claim · model-written summary
GXZ had less growth inhibition and biomass reduction than MXZ-2.
Verbatim
e0“GXZ cultivar is comparatively more Cd tolerant and Mo-efficient as evident from the less growth inhibition and biomass reduction as well as enhanced Mo-induced Cd stress tolerance and less oxidative damage than MXZ-2 fragrant rice cultivar.”
Claim · model-written summary
GXZ showed greater molybdenum-induced cadmium tolerance than MXZ-2.
Verbatim
e0“enhanced Mo-induced Cd stress tolerance and less oxidative damage than MXZ-2 fragrant rice cultivar.”
e1“Mo application enhanced the plant dry biomass by 73.24% in GXZ and 58.09% in MXZ-2 under Cd stress conditions”
t0“Fragrant Rice”
Claim · model-written summary
GXZ showed less oxidative damage than MXZ-2.
Not reportedMaterial
Verbatim
e0“less oxidative damage than MXZ-2 fragrant rice cultivar.”
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See all 5 papers →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.