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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2016.04.049
|2 doi
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|a pubmed24n1223.xml
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|a (DE-627)NLM260644854
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|a (NLM)27214086
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|a (PII)S0981-9428(16)30164-4
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Das, Natasha
|e verfasserin
|4 aut
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|a Enhanced cadmium accumulation and tolerance in transgenic tobacco overexpressing rice metal tolerance protein gene OsMTP1 is promising for phytoremediation
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.03.2017
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier Masson SAS. All rights reserved.
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|a One of the most grievous heavy metal pollutants in the environment is cadmium (Cd), which is not only responsible for the crop yield loss owing to its phytotoxicity, but also for the human health hazards as the toxic elements usually accumulate in the consumable parts of crop plants. In the present study, we aimed to isolate and functionally characterize the OsMTP1 gene from indica rice (Oryza sativa L. cv. IR64) to study its potential application for efficient phytoremediation of Cd. The 1257 bp coding DNA sequence (CDS) of OsMTP1 encodes a ∼46 kDa protein belonging to the cation diffusion facilitator (CDF) or metal tolerance/transport protein (MTP) family. The OsMTP1 transcript in rice plant was found to respond during external Cd stress. Heterologous expression of OsMTP1 in tobacco resulted in the reduction of Cd stress-induced phytotoxic effects, including growth inhibition, lipid peroxidation, and cell death. Compared to untransformed control, the transgenic tobacco plants showed enhanced vacuolar thiol content, indicating vacuolar localization of the sequestered Cd. The transgenic tobacco plants exhibited significantly higher biomass growth (2.2-2.8-folds) and hyperaccumulation of Cd (1.96-2.22-folds) compared to untransformed control under Cd exposure. The transgenic plants also showed moderate tolerance and accumulation of arsenic (As) upon exogenous As stress, signifying broad substrate specificity of OsMTP1. Together, findings of our research suggest that the transgenic tobacco plants overexpressing OsMTP1 with its hyperaccumulating activity and increased growth rate could be useful for future phytoremediation applications to clean up the Cd-contaminated soil
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|a Journal Article
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|a Cadmium tolerance and accumulation
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|a Genetic engineering
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|a Metal tolerance protein
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|a OsMTP1
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|a Phytoremediation
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|a Transgenic tobacco plant
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|a Plant Proteins
|2 NLM
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|a Sulfhydryl Compounds
|2 NLM
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| 650 |
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|a Cadmium
|2 NLM
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| 650 |
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|a 00BH33GNGH
|2 NLM
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| 650 |
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|a Arsenic
|2 NLM
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| 650 |
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|a N712M78A8G
|2 NLM
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| 700 |
1 |
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|a Bhattacharya, Surajit
|e verfasserin
|4 aut
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| 700 |
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|a Maiti, Mrinal K
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 105(2016) vom: 21. Aug., Seite 297-309
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:105
|g year:2016
|g day:21
|g month:08
|g pages:297-309
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|u http://dx.doi.org/10.1016/j.plaphy.2016.04.049
|3 Volltext
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