Hyperaccumulation of cadmium by roots, bulbs and shoots of garlic (Allium sativum L.)

Jiang, Wusheng; Liu, Donghua; Hou, Weiyan

doi:10.1016/s0960-8524(00)00086-9

Cited by 126 publications

(54 citation statements)

References 34 publications

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“…The increasing application of Cd from 1 to 9 mg Cd kg -1 soil significantly increased Cd concentrations in leaf, stem and root over control. This is in agreement with Jiang et al (2001) who found that the Cd content in roots of garlic increased with increasing solution concentrations of Cd 2+ . Cadmium supplying at 9 mg Cd kg -1 soil increased leaf and root Cd concentrations about 4 fold than that in 1 mg Cd kg -1 soil supplement in clay loam soil in the present study.…”

Section: Effects Of CD On Growth Of Indian Spinachsupporting

confidence: 93%

Influence of soil applied cadmium on the growth and cadmium content In Indian spinach (Basella rubra L.)

Kibria

Osman

Islam

et al. 2013

Chittagong Univ. J. B. Sci.

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Growth and accumulation of cadmium (Cd) in Indian spinach (Basella rubra L.) grown in three different textured soils treated with various levels of Cd was studied by a pot experiment. In general, Cd application caused a suppression of dry weights of leaves, stems and roots. The increasing application of Cd from 1 to 9 mg Cd kg -1 soil significantly increased Cd concentration in leaf, stem and root from that of the control. The highest concentrations of Cd were found in roots and the lowest concentrations were found in the stems with moderate values in leaves in clay loam soil while in other two soils, the Cd concentrations in leaves and stems were almost similar being lower than those in roots. Positive correlations were found between 0.1 M HCl extractable Cd in soils after harvest and concentrations of Cd in plant parts of Indian spinach.

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Section: Effects Of CD On Growth Of Indian Spinachsupporting

confidence: 93%

Influence of soil applied cadmium on the growth and cadmium content In Indian spinach (Basella rubra L.)

Kibria

Osman

Islam

et al. 2013

Chittagong Univ. J. B. Sci.

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“…Based on TF values, the strategic response of plants to heavy metals can be divided into accumulation and exclusion (Baker, 1981;Wang et al, 2009). It has been shown in several studies that Cd tolerant plants must be able to prevent the absorption of excess Cd, or detoxify the Cd after it has been absorbed (Jiang et al, 2001). Metallothioneins (MTs) and MT-like proteins have been found in various plant species including C. esculenta.…”

Section: Discussionmentioning

confidence: 99%

Phytoextraction Efficiency of Cadmium and Zinc by Arum (<i>Colocasia esculenta</i> L.) Grown in Hydroponics

Islam

Kashem

Osman

2017

Environmental Control in Biology

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Cadmium (Cd) and Zinc (Zn) tolerance and phytoextraction efficiency of arum (Colocasia esculenta L.) were investigated in hydroponics. Plants were grown for 60 d in nutrient solution after addition of Cd and Zn at the levels of 0, 15, 30 and 60 mol L 1 and 0, 100, 500 and 1,000 mol L 1 , respectively. Growth of arum was unaffected by low levels of metal concentration (15 mol L 1 Cd and 100 mol L 1 Zn) whereas it decreased gradually with the increase of metal concentration in solution. Concentration of metals in parts of arum increased significantly (P 0.05) with the levels of metals in growth media. In arum shoots, Cd and Zn concentrations were 713 and 10,120 mg kg 1 respectively, at their low levels in solution. These concentrations (15 mol L 1 Cd and 100 mol L 1 Zn) did not cause any growth retardation indicating that arum is a metal hyperaccumulator. Transfer factor (TF) greater than one confirmed the hyperaccumulating behavior of arum for Cd and Zn in solution. Cadmium and Zn uptake in arum shoots without growth retardation and TF of these metals in arum indicates that this plant is a suitable candidate for the phytoremediation of water contaminated with Cd and Zn.

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“…The AMF associated with metaltolerant plants may contribute to the accumulation of heavy metals in roots in a non-toxic form inside hyphal cell walls or complexed to phosphate materials inside the cells (Galli et al, 1995). Maize, a universal host for AMF and high biomass-producing plant, shows relative tolerance to excess of metals in soils, features that could make this plant a good option for soil remediation (Jiang et al, 2001;Jurkiewicz et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Mycorrhiza influence on maize development under Cd stress and P supply

Andrade

Silveira

2008

Braz. J. Plant Physiol.

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The role of arbuscular mycorrhizal fungi (AMF) on cadmium (Cd) accumulation and on the possible attenuation of Cd stress was studied in maize plants (Zea mays L. var. Exceller). Plants inoculated or not with Glomus macrocarpum were exposed to Cd (0-20 µmol L -1 ), at two P levels (5 and 10 mg L -1 ) in the nutrient solution. The experiment was conducted in a hydroponic system, using a randomized 2 x 2 x 2 factorial design. The mycorrhiza-Cd interaction on plant growth, nutrients and Cd accumulation, AMF root colonization and on extra-radical mycelium was investigated. Mycorrhiza promoted plant growth whereas Cd addition reduced plant biomass production. No difference in plant Cd concentrations was found between mycorrhizal (M) and non-mycorrhizal (NM) plants, where Cd accumulated mainly in roots. In general, roots showed a slightly higher Cd concentration in the cell wall than in the cytoplasmic fraction, with M roots presenting 26% more Cd in the cell wall fraction than NM roots. Mycorrhizal plants showed higher P/Cd, N/Cd and S/Cd ratios in shoots and roots compared to NM plants. Mycorrhizal colonization and the length of extra-radical mycelium were diminished by Cd addition, the reduction being more pronounced under high-P supply. Addition of Cd induced guaiacol peroxidase (GPOX) activity in roots; however, M plants, in addition to the higher root protein contents, showed no induction of GPOX activity in the presence of Cd, suggesting higher tolerance to Cd. It is concluded that Cd affected mycorrhizal symbiosis by decreasing root colonization and the development of the extraradical mycelium. Nevertheless, the higher growth and nutrients/Cd ratios observed in M plants indicate an efficient symbiosis capable of alleviating Cd stress. Key words: arbuscular mycorrhizal fungi, Cd distribution, extra-radical mycelium, heavy metals, peroxidase, phosphorus Micorriza influencia o desenvolvimento do milho sob estresse de Cd e suprimento de P: A influência dos fungos micorrízicos arbusculares (FMA) no acúmulo e na atenuação potencial do estresse causado pelo Cd foi estudada em plantas de milho (Zea mays L. var. Exceller). Plantas associadas ou não com o FMA Glomus macrocarpum foram expostas ao Cd (0-20 mmol L -1 ) em dois níveis de P (5 e 10 mg L -1 ), em solução nutritiva. O experimento foi conduzido em sistema hidropônico, com delineamento totalmente casualizado, em esquema fatorial 2 x 2 x 2. Avaliou-se o efeito da interação micorriza-Cd sobre o crescimento da planta, o acúmulo de Cd e de nutrientes, a colonização micorrízica da raiz e a produção de micélio extra-radical. A micorriza promoveu o crescimento da planta enquanto a adição de Cd reduziu a produção de biomassa vegetal. Não foram observadas diferenças nas concentrações de Cd de plantas micorrizadas (M) e não-micorrizadas (NM), acumulando-se o Cd principalmente nas raízes. Em geral, as raízes mostraram maior concentração de Cd na fração da parede celular do que na citoplasmática, sendo que raízes de plantas M apresentaram quantidade de Cd 26% maior na fração...

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Hyperaccumulation of cadmium by roots, bulbs and shoots of garlic (Allium sativum L.)

Cited by 126 publications

References 34 publications

Influence of soil applied cadmium on the growth and cadmium content In Indian spinach (Basella rubra L.)

Influence of soil applied cadmium on the growth and cadmium content In Indian spinach (Basella rubra L.)

Phytoextraction Efficiency of Cadmium and Zinc by Arum (<i>Colocasia esculenta</i> L.) Grown in Hydroponics

Mycorrhiza influence on maize development under Cd stress and P supply

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