Transition metal transport

Krämer, Ute; Talke, Ina N.; Hanikenne, Marc

doi:10.1016/j.febslet.2007.04.010

Cited by 504 publications

(323 citation statements)

References 79 publications

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“…A number of different transporters, such as Cation Diffusion Facilitator, Natural resistance-associated macrophage protein, ATPBinding Cassette, Zinc-and Iron-regulated-like Protein, and P-type ATPase, have been reported to be involved in the uptake, translocation, distribution, and homeostasis of nutrients (Hall and Williams, 2003;Krämer et al, 2007;Palmer and Guerinot, 2009). Among them, heavy metal-transporting P-type ATPase (HMA), the P 1B subfamily of the P-type ATPase superfamily, has been implicated in heavy metal transport (Williams and Mills, 2005;Grotz and Guerinot, 2006;Argüello et al, 2007;Burkhead et al, 2009).…”

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confidence: 99%

A Member of the Heavy Metal P-Type ATPase OsHMA5 Is Involved in Xylem Loading of Copper in Rice

et al. 2013

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ORCID ID: 0000-0003-3411-827X (J.F.M.).Heavy metal-transporting P-type ATPase (HMA) has been implicated in the transport of heavy metals in plants. Here, we report the function and role of an uncharacterized member of HMA, OsHMA5 in rice (Oryza sativa). Knockout of OsHMA5 resulted in a decreased copper (Cu) concentration in the shoots but an increased Cu concentration in the roots at the vegetative stage. At the reproductive stage, the concentration of Cu in the brown rice was significantly lower in the mutants than in the wild-type rice; however, there was no difference in the concentrations of iron, manganese, and zinc between two independent mutants and the wild type. The Cu concentration of xylem sap was lower in the mutants than in the wild-type rice. OsHMA5 was mainly expressed in the roots at the vegetative stage but also in nodes, peduncle, rachis, and husk at the reproductive stage. The expression was up-regulated by excess Cu but not by the deficiency of Cu and other metals, including zinc, iron, and manganese, at the vegetative stage. Analysis of the transgenic rice carrying the OsHMA5 promoter fused with green fluorescent protein revealed that it was localized at the root pericycle cells and xylem region of diffuse vascular bundles in node I, vascular tissues of peduncle, rachis, and husk. Furthermore, immunostaining with an antibody against OsHMA5 revealed that it was localized to the plasma membrane. Expression of OsHMA5 in a Cu transport-defective mutant yeast (Saccharomyces cerevisiae) strain restored the growth. Taken together, OsHMA5 is involved in loading Cu to the xylem of the roots and other organs.

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A Member of the Heavy Metal P-Type ATPase OsHMA5 Is Involved in Xylem Loading of Copper in Rice

et al. 2013

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“…It has been reported that multiple transporter proteins are present in plant root cells, which help in the uptake of essential elements (Verbruggen et al, 2009;Gall and Rajakaruna, 2013). Zinc-Regulated Transporter1/Iron-Regulated Transporter1 (ZRT1/IRT1)-like proteins are well known transporters responsible for the uptake of Zn 2+ by root cells (Kramer et al, 2007). Further movement of Zn from root to shoot is made possible by proteins of ZIP (Zinc-regulated transporter Iron-regulated transporter Proteins) and CDF (Cation Diffusion Facilitators) families (Verbruggen et al, 2009).…”

Section: Heavy Metal Transfer From Soil To Mustardmentioning

confidence: 99%

“…The elements Cd and Zn possess similar chemical properties and therefore both have parallel interactions in biological systems, which results in Cd transport by the members of the ZIP family transporters (Kramer et al, 2007). It is reported that Ca 2+ uptake channels in plant cells are also involved in Cd 2+ transportation (Perfus-Barbeoch et al, 2002).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Assessment of biotransfer and bioaccumulation of cadmium, lead and zinc from fly ash amended soil in mustard–aphid–beetle food chain

Dar

Green

Naikoo

et al. 2017

Science of The Total Environment

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The present study investigates the extent of biotransfer and bioaccumulation of cadmium (Cd), lead (Pb) and zinc (Zn) from fly ash amended soil in mustard (Brassica juncea)-aphid (Lipaphis erysimi)-beetle (Coccinella septempunctata) food chain and its subsequent implications for the beetle. The soil was amended with fly ash at the rates of 0, 5, 10, 20 and 40% (w/w). Our results showed that the uptake of Cd, Pb and Zn from soil to mustard root increased with the increase in fly ash application rates, but their root to shoot translocation was relatively restricted. Increase in chlorophyll content and dry mass of mustard plant on treatments ≥ 20% even at elevated accumulation of Cd (1.67 mg kg -1 ), Pb (18.25 mg kg -1 ) and Zn (74.45 mg kg -1 dry weight) in its shoot showed relatively higher tolerance of selected mustard cultivar to heavy metal stress. The transfer coefficient (TC 1 ) of Cd from mustard shoot to aphid was always > 1, indicating that Cd biomagnified in aphids at second trophic level. But, there was no biomagnification of Cd in adult beetles at third trophic level. Zinc accumulation was 2.06 to 2.40 times more in aphids than their corresponding host shoots and 1.26-1.35 times more in adult beetles than their prey (aphids) on which they fed. Lead was only metal whose TC was less than 1 at both second and third trophic levels. The elimination of Cd via honeydew of aphids was most efficient as the ratio of metal in honeydew to aphid (ranging from 0.21 to 0.26) was higher than the Pb (0.16 to 0.20) and Zn (0.07 to 0.09). The statistically consistent (p > 0.05) biomass and predation rate of predatory beetles indicated that all levels of soil amendments with fly ash did not have any lethal or sub-lethal effects on beetles.

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“…21 This essentiality/toxic duality of transition metals has resulted in the development of a complex homeostatic network for their acquisition and use in aerobic organisms. [22][23][24][25] In Arabidopsis thaliana, primary root uptake of the transition metals includes members of different families: NRAMP, ZIP and COPT ( Table 1). In all cases, the transport is induced under limiting conditions of the transition metals and in all cases, these transporters can mediate the influx of more than one transition metal.…”

Section: Disclosure Of Potential Conflicts Of Interestmentioning

confidence: 99%

Transition metals: A double edge sward in ROS generation and signaling

Rodrigo-Moreno¹,

Poschenrieder²,

Shabala³

2013

Plant Signaling & Behavior

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Recently, reactive oxygen species (ROS) have emerged as important signaling molecules mediating a broad range of plant adaptive and developmental responses. In plant cells, both photosynthetic and respiratory electron-transport chains, as well as the NADPH oxidases and peroxidases are involved in ROS generation. 1 ROS have been shown to regulate gene expression and signaling transduction pathways and, as such, can control numerous processes, like root gravitropism, hypersensitive response to pathogens, stomatal closure and cell expansion and development. 1-5 During pathogen attack, programmed cell death (PCD) is induced in order to isolate cells and therefore avoiding pathogen spread. ROS play a crucial role in this signaling network. 6 In many cases, ROS production is genetically programmed and is induced during development. Generation of singlet oxygen induces controlled PCD in aleurone cells, leaf senescence, tracheary elements maturation or trichome development. 4 While ROS control over numerous adaptive and developmental responses is absolutely essential, a controlled balance of ROSproducing and ROS-scavenging systems must be kept to ensure an accurate execution of signaling without provoking toxicity. Several types of ROS may be formed in plant cells. These forms can be poorly reactive (non-radicals, such as H 2 O 2 or O 3 ) or can Transition metals such as iron (Fe) and Copper (Cu) are essential for plant cell development. At the same time, due their capability to generate hydroxyl radicals they can be potentially toxic to plant metabolism. Recent works on hydroxyl-radical activation of ion transporters suggest that hydroxyl radicals generated by transition metals could play an important role in plant growth and adaptation to imbalanced environments. in this mini-review, the relation between transition metals uptake and utilization and oxidative stress-activated ion transport in plant cells is analyzed, and a new model depicting both apoplastic and cytosolic mode of ROS signaling to plasma membrane transporters is suggested.

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Transition metal transport

Cited by 504 publications

References 79 publications

A Member of the Heavy Metal P-Type ATPase OsHMA5 Is Involved in Xylem Loading of Copper in Rice

A Member of the Heavy Metal P-Type ATPase OsHMA5 Is Involved in Xylem Loading of Copper in Rice

Assessment of biotransfer and bioaccumulation of cadmium, lead and zinc from fly ash amended soil in mustard–aphid–beetle food chain

Transition metals: A double edge sward in ROS generation and signaling

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