Differential cadmium stress tolerance in five Indian mustard (Brassica juncea L.) cultivars: an evaluation of the role of antioxidant machinery
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The presence of Cadmium (Cd) in the agricultural soils affects horticultural cultivars and constrains the crop productivity. A pot experiment was performed using five cultivars of mustard (Brassica juncea L.) to evaluate the difference in their response to Cd toxicity under greenhouse conditions. The pots containing reconstituted soil were supplied with different concentration of CdCl2 (0, 25, 50, 100 or 150 mg Cd kg-1 soil). Increasing concentration of Cd in the soil resulted in decreased growth, photosynthesis and yield. Maximum significant reduction in growth, photosynthesis and yield were observed with 150 mg Cd kg-1 soil in all the cultivars. Our results indicate that the cultivar Alankar is found to be more tolerant to Cd stress, recording higher plant dry mass, net photosynthesis rate, associated with high antioxidant activity and low Cd content in the plant leaves and thus less oxidative damage. Cultivar RH 30 experienced maximum damage in terms of reduction in growth, photosynthesis, yield characteristics and oxidative damage and emerged as sensitive cultivar. The data of tolerance index of Alankar were found to be higher among all tested mustard cultivars which indicate its higher tolerance to Cd. Better coordination of antioxidants protected Alankar from Cd toxicity, whereas lesser antioxidant activity in RH 30 resulted in maximum damage. Cultivars of mustard were ranked with respect to their tolerance to Cd: Alankar > Varuna > Pusa Bold > Sakha > RH 30, respectively.
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Drought stress can adversely affect levels and activities of different enzymes involved in photosynthesis, thereby impairing carbohydrate synthesis and WUE, which in turn adversely affects overall plant yield.
“Similarly as the salt stress, drought stress can also adversely affect levels and activities of different enzymes involved in the mechanism of photosynthesis, thereby impairing the synthesis of carbohydrates as well as WUE of plants, which in turn adversely affects the overall plant yield (Kumar andSingh 2009, Gill et al. 2011).”
From Photosynthesis under stressful environments: An overview (2013) · cites this paper as Gill et al. 2011
The Results and Discussion report that cadmium stress reduced photosynthetic characteristics in mustard, and the paper concludes that cadmium stress inhibited photosynthesis and yield. Those findings concern cadmium, not drought; our copy does not establish the claimed effects on carbohydrate synthesis or water-use efficiency (WUE). (LLM, conf=0.84)
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Photosynthesis under stressful environments: An overview
Ashraf, M., & Harris, P. J. C. (2013) · Photosynthetica · doi:10.1007/s11099-013-0021-6 · Cited by 2,028 · see citing works
- Authors
- Gill, S. S., Khan, N. A., & Tuteja, N.
- Affiliations
- Aligarh Muslim University (IN)
- International Centre for Genetic Engineering and Biotechnology (IN)
- Corresponding author
- Tuteja, Narendra
- Venue
- Plant Signaling & Behavior
- Publisher
- Informa UK Limited
- Published
- 2011-02
- Volume
- 6
- Issue
- 2
- Pages
- 293-300
- ISSN
- 1559-2316 (ISSN-L)
- 1559-2324
- PMC
- PMC3121991
- OpenAlex
- W2074005099
- Cited by
- 167
- References
- 3
- Citations by year
- 2026: 6 · 2025: 10 · 2024: 13 · 2023: 9 · 2022: 16 · 2021: 12 · 2020: 12 · 2019: 18 · 2018: 7 · 2017: 16 · 2016: 16 · 2015: 6 · 2014: 5 · 2013: 10 · 2012: 9
- FWCI
- 10.03
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Plant Signaling & Behavior (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chromium effects and bioremediation
- Keywords
- cadmium toxicity, Brassica juncea, cultivar tolerance, heavy metal stress, antioxidant activity, oxidative damage, photosynthesis, plant growth, seed yield, tolerance index, cadmium-contaminated soil
- MeSH terms
- Antioxidants, Cadmium, Mustard Plant, Photosynthesis, Species Specificity, Stress, Physiological, Biomass
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