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|a 10.1111/j.1469-8137.2009.02982.x
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|a eng
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|a Karimi, Naser
|e verfasserin
|4 aut
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|a An arsenic-accumulating, hypertolerant brassica, Isatis capadocica
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|c 2009
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 12.11.2009
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|a Date Revised 14.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Isatis capadocica, a brassica collected from Iranian arsenic-contaminated mine spoils and control populations, was examined to determine arsenate tolerance, metabolism and accumulation. I. cappadocica exhibited arsenate hypertolerance in both mine and nonmine populations, actively growing at concentrations of > 1 mm arsenate in hydroponic solution. I. cappadocica had an ability to accumulate high concentrations of arsenic in its shoots, in excess of 100 mg kg(-1) DW, with a shoot : root transfer ratio of > 1. The ability to accumulate arsenic was exhibited in both hydroponics and contaminated soils. Tolerance in this species was not achieved through suppression of high-affinity phosphate/arsenate root transport, in contrast to other monocotyledons and dicotyledons. A high percentage (> 50%) of arsenic in the tissues was phytochelatin complexed; however, it is argued that this is a constitutive, rather than an adaptive, mechanism of tolerance
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|a Journal Article
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|a Ghaderian, Seyed Majid
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|a Raab, Andrea
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|a Feldmann, Joerg
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|a Meharg, Andrew A
|e verfasserin
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|i Enthalten in
|t The New phytologist
|d 1979
|g 184(2009), 1 vom: 25., Seite 41-47
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