Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Ma, Jing; Saleem, Muhammad Hamzah; Alsafran, Mohammed; Jabri, Hareb Al; Mehwish,; Rizwan, Muhammad; Nawaz, Muhammad; Ali, Shafaqat; Usman, Kamal

doi:10.1016/j.ecoenv.2022.113969

Cited by 36 publications

(13 citation statements)

References 64 publications

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“…The chlorophyll content decreased in a dose-dependent manner in response to cadmium. A similar pattern of chlorophyll reduction has been reported in previous studies [34][35][36][37][38][39]. The excessive ROS production leads to the oxidation of the chlorophyll contents, leading to their degeneration and Similar patterns were also recorded in the case of translocation of the metal to the aerial parts of the plants (Figure 5b).…”

Section: Discussionsupporting

confidence: 88%

Enhancement of Cadmium Phytoremediation Potential of Helianthus annuus L. with Application of EDTA and IAA

et al. 2022

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The aim of the current study was to assess the cadmium (Cd) phytoremediation potential of Halianthus annus L. that was exposed to 50, 100, and 150 mg/kg of cadmium for 15, 30, and 60 days with application of EDTA (Ethylenediaminetetraacetic acid) in the soil and IAA (indole acetic acid) as a foliar spray. The results indicated that the concentration, duration of exposure, and amount of Cd affect the phytoremediation potential. The maximum Cd was observed at 60 days (32.05, 16.86, and 10.63%) of Cd application, compared to 15 (2.04, 0.60, and 1.17%) or 30 days (8.41, 3.93, and 4.20%, respectively), in a dose-dependent manner. The application of EDTA in the soil and foliar IAA enhanced the Cd accumulation in the plants at 15, 30, and 60 days of exposure, with maximum accumulation at 60 days. Exposed plants with foliar IAA application showed 64.82%, 33.77%, and 25.84% absorption at 50, 100, and 150 mg/kg, respectively. Apart from higher absorption, the cadmium translocation to the edible part of the plants ceased, i.e., the seeds had 0% accumulation. The interesting fact was recorded that efficient phytoremediation was recorded at 15 days of exposure, whereas maximum phytoremediation was recorded at 60 days of exposure. To minimize the stress, the host also produced stress-related metabolites (i.e., flavonoids, phenolics, proline, and sugar) and antioxidants (i.e., catalases and ascorbate peroxidases). From the current evidence, it could be assumed that the use of EDTA and IAA, along with hyperaccumulating plants, could be a possible green method to remediate Cd-contaminated soil efficiently in a short period of time.

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Section: Discussionsupporting

confidence: 88%

Enhancement of Cadmium Phytoremediation Potential of Helianthus annuus L. with Application of EDTA and IAA

et al. 2022

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“…Previous studies have shown that NO can resist abiotic stress through protecting cell membrane stability, up-regulating antioxidant enzyme activity and inducing resistance-related gene expression ( Fan et al., 2015 ; Kaya et al., 2015 ). For example, it has been reported that NO could alleviate Cd toxicity through maintaining the growth regulation and nutritional status in cauliflower ( Ma et al., 2022 ). Also, Zhao et al (2022) found that NO enhanced Cd resistance of Pleurotus eryngii through overcoming oxidative damage and regulating short-chain dehydrogenase/reductase famliy.…”

Section: Discussionmentioning

confidence: 99%

Nitric oxide promotes adventitious root formation in cucumber under cadmium stress through improving antioxidant system, regulating glycolysis pathway and polyamine homeostasis

Niu

Tang²,

Zhu³

et al. 2023

Front. Plant Sci.

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Cadmium (Cd) as a potentially toxic heavy metal that not only pollutes the environment but also interferes with plant growth. Nitric oxide (NO) regulates plant growth and development as well as abiotic stress response. However, the mechanism underpinning NO-induced adventitious root development under Cd stress remains unclear. In this study, cucumber (Cucumis sativus ‘Xinchun No. 4’) was used as the experimental material to investigate the effect of NO on the development of adventitious roots in cucumber under Cd stress. Our results revealed that, as compared to Cd stress, 10 μM SNP (a NO donor) could considerably increase the number and length of adventitious roots by 127.9% and 289.3%, respectively. Simultaneously, exogenous SNP significantly increased the level of endogenous NO in cucumber explants under Cd stress. Our results revealed that supplementation of Cd with SNP significantly increased endogenous NO content by 65.6% compared with Cd treatment at 48 h. Furthermore, our study indicated that SNP treatment could improve the antioxidant capacity of cucumber explants under Cd stress by up-regulating the gene expression level of antioxidant enzymes, as well as reducing the levels of malondialdehyde (MDA), hydrogen peroxide (H2O2) and superoxide anion (O2.-) to alleviate oxidative damage and membrane lipid peroxidation. Application of NO resulted in a decrease of the O2.-, MDA, and H2O2 level by 39.6%, 31.4% and 60.8% as compared to Cd-alone treatment, respectively. Besides that, SNP treatment significantly increased the expression level of related genes involved in glycolysis processes and polyamine homeostasis. However, application of NO scavenger 2-(4-carboxy -2-phenyl)-4, 4, 5, 5-tetramethy limidazoline -1-oxyl -3-oxide (cPTIO) and the inhibitor tungstate significantly reversed the positive role of NO in promoting the adventitious root formation under Cd stress. These results suggest that exogenous NO can increase the level of endogenous NO, improve antioxidation ability, promote glycolysis pathway and polyamine homeostasis to enhance the occurrence of adventitious roots in cucumber under Cd stress. In summary, NO can effectively alleviate the damage of Cd stress and significantly promote the development of adventitious root of cucumber under Cd stress.

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“…Divalent cations can precipitate even though Cr (VI) chromate and dichromate are extremely soluble at any pH (Prasad et al 2021;Sandeep et al 2019). The Cr concentration of underlying soil rocks and sediments fluctuates as the natural composition of the rocks and sediments changes (Hussain et al 2021;Ma et al 2022a, b, Saleem et al 2022d). Soil chromium levels can be increased by disposing chromium-bearing liquids and solid wastes, such as chromium byproducts, ferrochromium slag, or chromium plating baths.…”

Section: Toxic Effects Of Crmentioning

confidence: 99%

Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments

Alsafran

Saleem

Jabri

et al. 2022

J Plant Growth Regul

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Contamination of agricultural soils with heavy metals present lethal consequences in terms of diverse ecological and environmental problems that entail entry of metal in food chain, soil deterioration, plant growth suppression, yield reduction and alteration in microbial community. Metal polluted soils have become a major concern for scientists around the globe. In more recent times, armed with new knowledge and understanding, removal of heavy metals using different applications has emerged as a solution for waste treatment and contaminant remediation in water and soil. However, the description of metal toxicity to the plants and its removal and degradation from the soil is limited. There are a number of reports in the literature where PGP bacterial inoculation and various chelating agents improves metal accumulation and it’s detoxification in different plant parts without influencing plant growth. Therefore, there is a need to select some useful chemicals which possess the potential to improve plant growth as well as expedite the phytoremediation of metals. In this review, we have discussed the mechanisms possessed by different chelating agents to promote plant growth and phytoremediation of metals. We anticipate that this analysis of interconnected systems will lead to the discovery of new research fields.

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Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Cited by 36 publications

References 64 publications

Enhancement of Cadmium Phytoremediation Potential of Helianthus annuus L. with Application of EDTA and IAA

Enhancement of Cadmium Phytoremediation Potential of Helianthus annuus L. with Application of EDTA and IAA

Nitric oxide promotes adventitious root formation in cucumber under cadmium stress through improving antioxidant system, regulating glycolysis pathway and polyamine homeostasis

Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments

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