Myriophyllum alterniflorum DC. Effect of low concentrations of copper and cadmium on somatic and photosynthetic endpoints: A chemometric approach

Ngayila, Nadine; Botineau, Michel; Baudu, Michel; Basly, Jean‐Philippe

doi:10.1016/j.ecolind.2008.05.006

Cited by 12 publications

(9 citation statements)

References 16 publications

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“…The common alternate watermilfoil Myriophyllum alterniflorum DC is used since the 2000s as a bioindicator for heavy metal pollution (Ngayila et al, 2009) and for trophic conditions (Chatenet et al, 2006). M. alterniflorum was chosen as sentinel organism, as it is an aquatic macrophyte of ecological importance within the aquatic ecosystem, providing shelter and habitat for fish eggs and other aquatic animals like native crawfishes.…”

Section: Introductionmentioning

confidence: 99%

“…No studies have been carried on Cu accumulation properties of M. alterniflorum and its physiological responses to Cu-induced stress. Only pigments and adsorption experiments based upon chemical models were analyzed (Ngayila et al, 2009) but without controlled and axenic conditions which are very indispensable to prevent from autoecological and synecological bias. Thus, the aim of this study was to evaluate the tolerance capacity in the young chlorophyllian parts and in the old ones of M. alterniflorum after exposure to a high external dose of Cu in axenic and controlled conditions, and to determine whether the physiological impacts of this accumulated toxic ion in terms of chlorophyll concentration, secondarily induced oxidative stress, and water stress, are similar for leaves located in different positions.…”

Section: Introductionmentioning

confidence: 99%

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Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

et al. 2011

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International audienceCopper is an essential element for the function of metabolic pathways in many living organisms like photosynthesis in plants. But, for the last decades, anthropogenic sources and release of Cu lead to environmental pollution particularly in aquatic ecosystems. The aquatic plant, Myriophyllum alterniflorum, known as a bioindicator of metal pollution, could be used as biomonitor. The aim of this study is to evaluate biomarkers responses of watermilfoil during Cu pollution at high environmental levels (100 μg l−1 CuSO4) in controlled conditions. Morphological and anatomical features like a new double endodermis (DE) layer were evidenced in response to Cu treatment. Moreover, physiological parameters like pigments contents, osmotic potential and proline content present a differential response to Cu stress in young and old leaves of watermilfoil. Finally, despite a rapid and strong phytoaccumulation of Cu, only young leaves are slightly affected in their cell membrane integrity as indicated by MDA content. In comparison with the Cu effect on other aquatic macrophytes, M. alterniflorum develops particular protection mechanisms like the ROS scavenging using proline rather than carotenoids, the reduction of water loss with the DE and the heavy metal elimination through senescence to protect preferentially the photosynthetic components of the young leaves and the main-stem elongation. Due to its Cu sensitivity, M. alterniflorum appears as important in the field of environmental studies using plant biomarkers

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

et al. 2011

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“…It leads to potential risk for human health when these metals get transferred to crops to the human diet. They play an important role in the environment toxic to species above certain concentrations (Ngayila et al, 2008). At high concentrations, a number of heavy metals have been reported to inhibit the growth and the productivity of crops (Liu et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Cadmium Induced Changes in Growth and Biochemical Contents of Tomato <i>(Lycopersicon esculentum </i>L<i>.)</i>

Soundari

Vaithiyanathan

Sundaramoorthy

2015

ILNS

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ABSTRACT. The effects of different concentrations (10,20,30,40 and 50 ppm) of cadmium chloride on seed germination, root length, shoot length, fresh weight, photosynthetic pigments, protein content and peroxidase activity in tomato (Lycopersicon esculentum L.). Higher concentration of Cadmium were reported specially at 40 and 50 µm reduced germination significantly. Leaf chlorosis, wilting and leaf abscission were observed in plants with cadmium. Protein content and sugar content were reduced in higher concentrations of cadmium. However, lower concentrations of CdCl 2 resulted in higher peroxidase activity in roots and shoots of tomato.

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“…Because the loading of heavy metals in the Yellow River estuary is increasing (State Oceanic Administration of China, 2013), intertidal sediments may be seriously contaminated if no effective meausres are taken to control the import of pollutants in the future. Thus, the use of biomonitors living and growing in intertidal zone could yield valuable information not only on the presence of anthropogenic stressors, but, more importantly, on the adverse influence the stressors are having on the environment Ngayila et al, 2009). In this study, the plant tissues at Z1, Z7 and Z8 units accumulated more heavy metals than those at other units (Fig.…”

Section: Potential To Use Plants In Bio-monitoring and Phytoremediationmentioning

confidence: 74%

Spatial variations and bioaccumulation of heavy metals in intertidal zone of the Yellow River estuary, China

Sun

Mou

Tong

et al. 2015

CATENA

117

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a b s t r a c t a r t i c l e i n f oNine units in new-born intertidal zone of the Yellow River estuary, China were examined for concentrations of heavy metals (Pb, Cr, Cu, Zn and Ni) in sediments and plants. Heavy metal levels in surface sediments were in the order of Zn N Pb ≈ Cr N Cu ≈ Ni and generally increased in a seaward direction except for Z6 (Tamarix chinensis-Suaeda salsa zone) and Z7 (S. salsa-T. chinensis zone) units. Significant differences in metal concentrations of the 9 units were observed in the profiles (p b 0.01). Heavy metal levels in the shoots or roots of different plants decreased in the order of Zn N Cu N Pb N Ni N Cr and differed among plants or tissues. The roots at Z2 (Calamagrostis pseudophragmites zone), Z3 (Imperata cylindrical zone) and Z4 (Phramites australis zone) units accumulated greater metals than shoots [TFs (translocation factors) b 1], while the shoots at Z1 (Sparganium minimum-Potentilla supina zone), Z7 and Z8 (S. salsa zone) units accumulated greater metals than roots (TFs N 1), implying that intertidal plants showed different pathways in metal accumulation and internal transportation. Except for Pb, the concentrations of Cr, Cu, Zn and Ni in sediments were lower than the criteria of Class I recommended by the Environmental Quality Standard for Soils of China. Although heavy metal levels in intertidal zone were generally the lowest (Cr, Cu, Zn and Ni) or relatively moderate (Pb) compared with other estuaries or bays in Asia and Europe, high eco-toxic risk of Pb and Ni exposure still could be observed at Z4, Z6 and Z9 (mudflat zone) units. S. salsa was more suitable for the potential biomonitor or phytoremediation of all five heavy metals if intertidal sediments was seriously contaminated with increasing of pollutants loading in the Yellow River estuary.

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Myriophyllum alterniflorum DC. Effect of low concentrations of copper and cadmium on somatic and photosynthetic endpoints: A chemometric approach

Cited by 12 publications

References 16 publications

Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

Cadmium Induced Changes in Growth and Biochemical Contents of Tomato <i>(Lycopersicon esculentum </i>L<i>.)</i>

Spatial variations and bioaccumulation of heavy metals in intertidal zone of the Yellow River estuary, China

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