Heavy metals modulate DNA compaction and methylation at CpG sites in the metal hyperaccumulator Arabidopsis halleri

Proteomic analysis of Arabidopsis halleri shoots in response to the heavy metals cadmium and zinc and rhizosphere microorganisms

PROTEOMICS ◽

10.1002/pmic.200900036 ◽

2009 ◽

Vol 9 (21) ◽

pp. 4837-4850 ◽

Cited By ~ 83

Author(s):

Silvia Farinati ◽

Giovanni DalCorso ◽

Elisa Bona ◽

Michela Corbella ◽

Silvia Lampis ◽

...

Keyword(s):

Heavy Metals ◽

Proteomic Analysis ◽

Arabidopsis Halleri ◽

Rhizosphere Microorganisms

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Plants accumulating heavy metals in the Sudety Mts

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.2006.009 ◽

2011 ◽

Vol 75 (1) ◽

pp. 61-68 ◽

Cited By ~ 4

Author(s):

Teresa Brej ◽

Jerzy Fabiszewski

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Vascular Plants ◽

Dry Weight ◽

Systematic Position ◽

Plant Biodiversity ◽

Arabidopsis Halleri ◽

Ore Deposit ◽

Nickel Zinc ◽

Armeria Maritima

The Sudeten flora consists of some plants we can recognize as heavy metal accumulators. Between others there are: Thlaspi caerulescens, Arabidopsis halleri, Armeria maritima ssp. halleri s.l. and probably the endemic fern Asplenium onopteris var. silesiaca. The authors present the concentrations of some important heavy metals measured in aboveground plant dry weight. The highest concentration of zinc was 8220 ppm (Thlaspi), nickel - 3100 ppm (Thlaspi), lead - 83 ppm (Armeria), copper - 611 ppm (Arabidopsis) and cadmium - 28 ppm (Thlaspi). The concentrations depend rather on species or population specification than on ore deposit quality. There are no typical hyperaccumulator among plants we have examined, but some signs of hyperaccumulation of nickel, zinc and lead could be observed. There are no typical endemic taxa, only Asplenium onopteris var. silesiaca and Armeria maritima ssp. halleri may be recognized as neoendemic taxa, but still of unclear systematic position. During the study we tried to find out why some Sudeten vascular plants do not develop heavy metals hyperaccumulation and why they are rather latent hyperaccumulators. Finally, we suggest to protect some metallicolous areas in spite they are rather territories with low plant biodiversity.

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Decomposition in soil microcosms of leaves of the metallophyte Arabidopsis halleri: effect of leaf-associated heavy metals on biodegradation

Environmental Pollution ◽

10.1016/j.envpol.2004.10.020 ◽

2005 ◽

Vol 135 (2) ◽

pp. 187-194 ◽

Cited By ~ 14

Author(s):

Uriel Boucher ◽

May Balabane ◽

Isabelle Lamy ◽

Philippe Cambier

Keyword(s):

Heavy Metals ◽

Arabidopsis Halleri ◽

Soil Microcosms

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Nuclear microsatellite loci for Arabidopsis halleri (Brassicaceae), a model species to study plant adaptation to heavy metals

American Journal of Botany ◽

10.3732/ajb.1100320 ◽

2012 ◽

Vol 99 (2) ◽

pp. e49-e52 ◽

Cited By ~ 10

Author(s):

Cécile Godé ◽

Isabelle Decombeix ◽

Alicja Kostecka ◽

Pawel Wasowicz ◽

Maxime Pauwels ◽

...

Keyword(s):

Heavy Metals ◽

Microsatellite Loci ◽

Arabidopsis Halleri ◽

Model Species ◽

Plant Adaptation ◽

Nuclear Microsatellite

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Sampling and analysis of the air-water interface with SEM and EDS of microlayers

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100157000 ◽

1989 ◽

Vol 47 ◽

pp. 1004-1005

Author(s):

Randall W. Smith ◽

John Dash

Keyword(s):

Heavy Metals ◽

Surface Microlayer ◽

Surface Films ◽

Water Interface ◽

Physical Processes ◽

Infrared Spectroscopic Analysis ◽

Eds Analysis ◽

Air Water Interface ◽

Significant Area ◽

Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

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