Concentration and distribution of cobalt in higher plants: The use of micro-PIXE spectroscopy

Bakkaus, Estelle; Gouget, Barbara; Gallien, Jean-Paul; Khodja, H.; Carrot, F.; Morel, Jean-Louis; Collins, Richard N.

doi:10.1016/j.nimb.2005.01.082

Cited by 86 publications

(48 citation statements)

References 9 publications

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“…Welch and Shuman (1995) classified Co as an intermediate phloem mobile element. Normal concentrations of cobalt in plants ranges between 0.110-mgkg -1 (Bakkaus et al, 2005). Concentration of cobalt in cabbage samples grown nearby the highway did not exceed this normal level Within the areal parts of cabbage, Co concentrations decreased as follows: outer leaves > inner leaves > core.…”

Section: Cobalt In Cabbagementioning

confidence: 86%

“…Although, roots retain relatively high concentrations of Co; yet considerable concentrations of Co were translocated to the areal parts of cabbage plants. Probably, Co is a beneficial element (Marschner, 1995;Bakkaus et al, 2005). The highest concentrations of Co were detected in stems and this probably indicates that Co is a mobile element within the plant.…”

Section: Cobalt In Cabbagementioning

confidence: 99%

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Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

et al. 2017

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A UTOMOBILE exhausts are considered the main source of air pollution with heavy metals. Airborne pollutants are precipitated on soils surrounding highways causing serious ecological hazards. The current study aimed at evaluating levels of Pb, Ni, Co and Cd in surface (015-cm) and subsurface (1540-cm) soils nearby Cairo-Alexandria agricultural highway, and their accumulation in plants grown thereon. Seven locations were sampled at interval distances 50 meters on both sides of the highway road near Toukh city (Qualubya Governorate). Cabbage and citrus plants were also sampled and separated into its parts. Results revealed that the investigated soils are contaminated with Pb, Ni and Cd. These contaminants were brought to the subsurface layers of the soil at relatively high concentrations. Total and DTPA-extractable contents of Pb and Ni in the top surface soil decreased with increasing the distance from the high way on both sides of the road. Moreover, concentrations of these metals in the cabbage parts were significantly correlated with their total and DTPA-extractable contents. However, Co and Cd in soils seemed to be not affected by the exhausts of the cars on the highway. Heavy metals decreased in cabbage parts as follows: root > stem > outer leaves > inner leaves > core. Calculated BAF values for Pb, Ni and Co were very low indicating that cabbage might be an excluder for these metals whereas, their transfer from roots to shoots (transfer factor, Ts) were high. Heavy metal concentrations in citrus decreased as leaves > flavedo > albedo > segments. Generally, concentrations of heavy metals in plants particularly Pb exceeded the permissible limits. 19

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Section: Cobalt In Cabbagementioning

confidence: 86%

Section: Cobalt In Cabbagementioning

confidence: 99%

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

et al. 2017

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“…The Co-containing vitamin B 12 does not occur in plants. Whereas normal Co concentrations in plants are cited to be as low as 0.1-10 µg g -1 dry weights, its beneficial role as a trace element has been described [3]. Trace elements are necessary for the normal metabolic functions of the plant, but at higher concentrations, these metals are toxic and may severely interfere with physiological and biochemical functions [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Low Concentration of Cobalt Increases Growth, Biochemical Constituents, Mineral Status and Yield in Zea Mays

et al. 2008

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A pot culture experiment has been carried out to find the extent of changes occurring in the biochemicals and nutrients of maize plants (Zea mays L.) grown under different concentrations of cobalt (50, 100, 150, 200, 250 mg kg -1 soil). The growth and yield parameters such as seedling vigour, number of cobs, number of seeds per plant; photosynthetic pigments viz., chlorophyll 'a', chlorophyll 'b', and total chlorophyll contents; biochemicals like total sugars (reducing and non reducing), starch, amino acids and protein content and various macro-and micronutrients are determined 90 days after sowing (DAS). All the growth parameters, pigment content, biochemicals and mineral content increase at 50 mg Co kg -1 soil when compared with the control. Further increase in the Co levels (100-200 mg kg -1 soil) has a negative effect on all the above parameters.

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“…Normal Co concentration in plants have been cited to be between 0.1 and 10 mg/kg dry weight (Bakkus et al, 2005) and that for Cu is 8-20 mg/kg dry weight (Shorrocks & Alloway, 1985). In this study the lowest concentration of Cu in plant tissue was 17.0 mg/kg in above ground tissue of pumpkin while in Chinese cabbage it was 11.0 mg/kg in CW 25% treatments while the highest was 142 mg/kg for pumpkin and 539.0 mg/kg for Chinese cabbage in CW 100% treatments.…”

Section: Discussionmentioning

confidence: 99%

Response of Pumpkin and Chinese Cabbage to Increasing Copper and Cobalt Levels in Irrigation Water on Sandy and Clay Loam Soils

Volk

Chishala²

2016

JAS

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A study where Chinese cabbage and pumpkin crops were grown on sandy loam and clay loam soils and irrigated with water contaminated with five levels of contamination from 0 (control), 25, 50, 75 and 100% of smelter water was carried out in a greenhouse. -0.004x (R 2 = 0.58).This study suggests that Chinese cabbage tends to accumulate higher amounts of Cu and Co than pumpkin. It can be concluded from this study that irrigating crops with contaminated results in higher uptake of contaminants and reduced biomass on sandy loam than clay loam soils.

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Concentration and distribution of cobalt in higher plants: The use of micro-PIXE spectroscopy

Cited by 86 publications

References 9 publications

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

Accumulation of some heavy metals in plants and soils adjacent to Cairo – Alexandria agricultural highway

Low Concentration of Cobalt Increases Growth, Biochemical Constituents, Mineral Status and Yield in Zea Mays

Response of Pumpkin and Chinese Cabbage to Increasing Copper and Cobalt Levels in Irrigation Water on Sandy and Clay Loam Soils

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