Organic and inorganic amendments for the remediation of nickel contaminated soil and its improvement on Brassica napus growth and oxidative defense

A pot experiment was conducted to study the effects of arsenic (As) and sulfur (S) interaction on yield and their accumulation and distribution in rapeseed (Brassica napus L.). The results showed that (1) at the same level of S treatment, application of As significantly decreased rapeseed grain and biomass yield; (2) Application of S significantly increased the grain and biomass yield of rapeseed when As was applied; (3) When As application rate increased, As content significantly increased in different parts of rapeseed, and reached their highest level at<br />120 mg/kg As. Arsenic content from seed were all below 1 mg/kg AS. Addition of S significantly reduced As contents in root and grain of rapeseed.

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Synergistic effects of drought and ascorbic acid on growth, mineral nutrients and oxidative defense system in canola (Brassica napus L.) plants

Acta Physiologiae Plantarum ◽

10.1007/s11738-014-1530-z ◽

2014 ◽

Vol 36 (6) ◽

pp. 1539-1553 ◽

Cited By ~ 39

Author(s):

Sidra Shafiq ◽

Nudrat Aisha Akram ◽

Muhammad Ashraf ◽

Amara Arshad

Keyword(s):

Ascorbic Acid ◽

Brassica Napus ◽

Synergistic Effects ◽

Mineral Nutrients ◽

Defense System ◽

Brassica Napus L ◽

Oxidative Defense ◽

Effects Of Drought

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Functional Analysis of Organic Acids on Different Oilseed Rape Species in Phytoremediation of Cadmium Pollution

Plants ◽

10.3390/plants9070884 ◽

2020 ◽

Vol 9 (7) ◽

pp. 884

Author(s):

Shi Li ◽

Sixiu Le ◽

Xin Wang ◽

Jiuyuan Bai ◽

Rui Wang ◽

...

Keyword(s):

Brassica Napus ◽

Oxalic Acid ◽

Organic Acids ◽

Brassica Juncea ◽

Oilseed Rape ◽

Contaminated Soil ◽

Brassica Campestris ◽

Anthropogenic Activities ◽

Mature Stage ◽

Antioxidant Enzyme Activities

Cadmium (Cd) pollution in soil is becoming increasingly serious due to anthropogenic activities, which not only poses a threat to the ecological environment, but also causes serious damage to human health via the biological chain. Consequently, special concerns should be paid to develop and combine multiple remediation strategies. In this study, different subspecies of oilseed rape, Brassica campestris, Brassica napus and Brassica juncea were applied, combined with three organic acids, acetic acid, oxalic acid and citric acid, in a simulated Cd-contaminated soil. Various physiological and biochemical indexes were monitored in both plant seedling, growth period and mature stage. The results showed that organic acids significantly promoted the growth of Brassica campestris and Brassica juncea under Cd stress. The photosynthesis and antioxidant enzyme activities in Brassica campestris and Brassica juncea were induced at seedling stage, while that in Brassica napus were suppressed and disturbed. The enrichment of Cd in oilseed rape was also obviously increased. Brassica juncea contained relatively high resistance and Cd content in plant but little Cd in seed. Among the three acids, oxalic acids exhibited the most efficient promoting effect on the accumulation of Cd by oilseed rape. Here, a comprehensive study on the combined effects of oilseed rape and organic acids on Cd contaminated soil showed that Brassica juncea and oxalic acid possessed the best effect on phytoremediation of Cd contaminated soil. Our study provides an optimal way of co-utilizing oilseed rape and organic acid in phytoremediation of Cd contaminated soil.

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Effect of passivator DHJ-C on the growth and cadmium accumulation of Brassica napus in Cd-contaminated soil

Applied Biological Chemistry ◽

10.1186/s13765-021-00601-w ◽

2021 ◽

Vol 64 (1) ◽

Author(s):

Xin Wang ◽

Qian Liu ◽

Yunbao Wan ◽

Chenxi Cao ◽

Jiuyuan Bai ◽

...

Keyword(s):

Brassica Napus ◽

Contaminated Soil ◽

Dry Weight ◽

Cadmium Accumulation ◽

Inhibitory Effect ◽

Cd Accumulation ◽

Physiology And Biochemistry ◽

Soil Urease ◽

Mature Period ◽

Mda Content

AbstractThe farmland polluted by cadmium is increasing drastically, which seriously threatened agricultural production and food safety. Nowadays, efficient and convenient way to solve the problem is urgently needed. In this experiment, a particular compound passivator DHJ-C was applied for soil remediation by pot experiment and the effect on both soil and plant was evaluated. The DHJ-C reduced the toxicity of Cd on soil enzyme activity and growth inhibition on Brassica napus. The soil urease and sucrase activity were significantly increased. The dry weight of mature oilseed rape increased by 14.6–36.0% and the yield of seeds increased by 14.1–52% per plant, which suggested that the passivator effectively reduced the detrimental effects on rape. Similarly, the results of physiology and biochemistry also indicated that DHJ-C can distinctly alleviate the inhibitory effect of Cd on plant growth. Such as the MDA content in plant was reduced by 52.1% in 10 mg/kg Cd treatment. Compared with control, Cd accumulation in seedling stage and mature period was significantly reduced as the concentration of Cd in aboveground part even decreased by 18.4 and 32.0% respectively. Overall, DHJ-C hold sufficient ability to be applied as an excellent passivator to reduce Cd toxicity in contaminated soil and significantly increase the yield of rapeseed.

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Chelate-assisted phytoextraction: Effect of EDTA and EDDS on copper uptake by Brassica napus L.

Journal of the Serbian Chemical Society ◽

10.2298/jsc091207086z ◽

2010 ◽

Vol 75 (9) ◽

pp. 1279-1289 ◽

Cited By ~ 12

Author(s):

Tijana Zeremski-Skoric ◽

Petar Sekulic ◽

Ivana Maksimovic ◽

Srdjan Seremesic ◽

Jordana Ninkov ◽

...

Keyword(s):

Brassica Napus ◽

Contaminated Soil ◽

Maximum Amount ◽

Copper Uptake ◽

High Biomass ◽

Brassica Napus L ◽

Growth Depression ◽

High Concentrations ◽

Cu Uptake ◽

Assisted Phytoextraction

Chelate-assisted phytoextraction has been proposed as an effective approach to removing heavy metals from contaminated soil through use of high biomass plants. The aim of the present study was to compare the efficiency of the two chelators: EDTA and biodegradable EDDS in enhancing Cu uptake and translocation by Brassica napus L. grown on moderately contaminated soil and treated with increasing concentrations of EDTA or EDDS. Increasing amounts of EDDS caused a serious growth depression of Brassica napus and an increase in shoot metal concentrations. Growth depression limited the actual amount of phytoextracted Cu at high concentrations of EDDS. The maximum amount of extracted Cu was achieved by the application of 8.0 and 4.0+4.0 mmol/kg EDDS. The shoot Cu concentrations after EDTA application were much lower than with EDDS at the same doses. According to this experiment, EDTA does not appear to be an efficient amendment if Cu phytoextraction with Brassica napus is considered but EDDS is.

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Effects of Three Salts to Oilseed Rape (Brassica napus) Accumulating Cadmium in Cd-Contaminated Soil

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.356-360.63 ◽

2011 ◽

Vol 356-360 ◽

pp. 63-69

Author(s):

Liang Peng Yi ◽

Zu Wei Wang

Keyword(s):

Sodium Chloride ◽

Brassica Napus ◽

Sodium Carbonate ◽

Contaminated Soil ◽

Contaminated Soils ◽

Sodium Sulfate ◽

Cadmium Accumulation ◽

Saline Soils ◽

High Concentration ◽

Different Types

In order to use the Cd-contaminated saline soil, experiments have been carried out to analyze the differences among effects of three salts on cadmium accumulation capacities of Brassica Napus in Cd-contaminated soil, thus to figure out the phytoremediation effects of planting Brassica Napus in different types of Cd-contaminated saline soils. Brassica Napus(a cadmium hyperaccumulator plant) has been as the research plant, the Brassica Napus was planted in Cd-contaminated soils (Cd: 10 mg•kg-1) with different salt concentrations(0 g•kg-1, 2g•kg-1,4 g•kg-1 and 6 g•kg-1) for 60 days as required by the greenhouse pot soil culture experiment, thus to study the bioconcentration factor(BCF) of Brassica Napus on Cd and the effects of Brassica Napus on the changes of concentrations in the shoots and roots. The three main salts in the soil, namely, sodium chloride, sodium sulfate and sodium carbonate, were chosen as the analysis and research objects. The results showed that the soil containing sodium carbonate inhibited the Brassica Napus from absorbing Cd in the soil, so did the soil containing sodium sulfate, however, the effect was not so obvious as that of the soil containing sodium carbonate. However, the soil containing sodium chloride had little impact on Cd absorption of the Brassica Napus that it could only slightly promote the cadmium accumulation capacities of Brassica Napus under a very high concentration, In different types of saline soils, there were significant differences among the effects of different salts on cadmium accumulation capacities of Brassica Napus, the sodium chloride in the soil had little impact on cadmium accumulation capacities of the roots of Brassica Napus, however, it could enhance the cadmium accumulation capacities of the shoots of Brassica Napus; the sodium carbonate in the soil could significantly inhibit the shoots and roots of Brassica Napus from accumulating the cadmium, therefore, it was not conducive for the Brassica Napus to accumulate cadmium.

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