Toxic effects of Ni2+ on growth of cowpea (Vigna unguiculata)

Kopittke, Peter M.; Asher, C. J.; Menzies, Neal W.

doi:10.1007/s11104-007-9226-4

Cited by 61 publications

(25 citation statements)

References 19 publications

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“…It is obvious that dry mass of plant organs decreased with increasing Ni concentration in external solution. Our results are consistent with earlier studies of various crops which have shown that higher levels of trace elements, including Ni, cause a significant reduction in dry mass and essential metabolites [20][21][22][23]. Figure 1 also shows some considerable differences between studied cultivars.…”

Section: Resultssupporting

confidence: 92%

Physiological response of two brassica napus l. cultivars to nickel treatment

Peško

Kráľová

2014

Ecological Chemistry and Engineering S

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PHYSIOLOGICAL RESPONSE OF TWO Brassica napus L. CULTIVARS TO NICKEL TREATMENT WPŁYW NIKLU NA REAKCJE FIZJOLOGICZNE DWÓCH ODMIAN Brassica napus L.Abstract: Adverse effect of nickel on hydroponically cultivated plants of two Brasssica napus L. cultivars (Verona and Viking) was investigated. Dry mass of shoots and roots as well as some biochemical characteristics (concentration of photosynthetic pigments, TBARS and proteins) of plant leaves were determined. In addition, the content of nickel in plant organs was estimated. Visible symptoms of Ni toxicity were notable already at the lowest applied concentration (6 µmol · dm -3). Higher applied Ni concentrations (24, 60 and 120 µmol · dm -3 ) resulted in moderate to strong toxic effects on plants of both studied cultivars. After application of 6 and 12 µmol · dm -3 Ni shoot dry mass of cv. Viking was substantial lower than that of cv. Verona. Decrease of root dry mass after treatment with 6, 12 and 120 µmol · dm -3 Ni was similar for both cultivars. Strong decrease in content of photosynthetic pigments was observed after application of 120 µmol · dm . Comparing to the control, the content of these pigments in leaves of plants dropped under 50% (both cultivars). The highest applied Ni concentration 120 µmol · dm -3 caused that protein content in leaves dropped by 39% (cv. Verona) and 37% (cv. Viking) comparing to the control plants. After application of 120 µmol · dm -3 Ni the content of malondialdehyde in leaves was 2.64-(Viking) and 2.31-(Verona) times higher than that of control. Nickel amounts accumulated in roots of plants were higher than those in shoots. Accumulated Ni amounts in roots of cv. Verona plants were 1.3-(120 µmol · dm -3 ) to 1.9-(6 µmol · dm -3 ) times lower than those of cv. Viking plants, whereas metal amounts accumulated in shoots of cv. Verona plants were 1.2-(120 µmol · dm -3 ) to 1.8-(6 µmol · dm -3 ) times lower than those of cv. Viking plants.

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Section: Resultssupporting

confidence: 92%

Physiological response of two brassica napus l. cultivars to nickel treatment

Peško

Kráľová

2014

Ecological Chemistry and Engineering S

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“…The results are consistent with earlier studies of various crops which have shown that higher levels of trace elements including Ni cause a significant reduction in growth parameters and other essential metabolites [11][12][13][14][15][16].…”

Section: Discussionsupporting

confidence: 92%

Toxic Effect of Nickel (Ni) on Growth and Metabolism in Germinating Seeds of Sunflower (Helianthus annuus L.)

Ashraf

Sadiq²,

Hussain³

et al. 2011

Biol Trace Elem Res

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To assess the toxic effect of nickel (Ni) on the growth and some key metabolic processes in sunflower, varying levels of Ni as Ni(NO(3))(2) up to 60 mg L(-1) were applied once to sunflower cultivars SF-187 and Hysun-33 at sowing time in sand culture. An increase in Ni in the growth medium adversely affected growth parameters, sugar concentration (both reducing and non-reducing), as well as the activities of α-amylase and protease. It also slowed down mobilization of stored proteins and amino acids in the germinating seeds. However, an increase in the activities of α-amylase and protease was observed over time from 24 to 120 h after sowing. Cultivar Hysun-33 showed better performance than SF-187 in the presence of excess Ni. Overall, Ni-induced reduction in germination of sunflower seed appeared to be due to disturbance in biochemical metabolism as the availability of sugars for the synthesis of metabolic energy as well as necessary amino acids for the synthesis of proteins and enzymes essential for the growing embryo are generally reduced due to suppression in α-amylase and protease activities.

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“…Soil contamination by lead may cause a variety of environmental disturbances and its high phytotoxicity is a major problem in cultivated areas [7][8][9]. Its transport by streaming water may also lead to the contamination of ground and surface waters.…”

Section: Introductionmentioning

confidence: 99%