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231225s1994 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.1994.tb03999.x
|2 doi
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|a pubmed25n1080.xml
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|c DE-627
|e rakwb
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|a eng
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|a Patra, Jita
|e verfasserin
|4 aut
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| 245 |
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|a Tolerance and co-tolerance of the grass Chloris barbata Sw. to mercury, cadmium and zinc
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| 264 |
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|c 1994
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| 336 |
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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 Revised 20.04.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Races of Chloris barbata Sw. from a mercury-contaminated site in the vicinity of a chloralkali plant and from a non-contaminated site were tested for their relative tolerance to mercury, cadmium and zinc. Pre-rooted tillers of each of the races were grown in calcium nitrate solution, Ca(NO3 )2 , 4H2 O, l gl-1 with or without HgCI2 (0.001, 0.01, 0.05, 0.1 and mgl-1 ), CdSO4 .8H2 O (0.05, 1.0, 2.5 and 5 mg l-1 and ZnSO4 7H2 O (1, 5, 10, 20 and 40 mg l-1 ) for a period of 5 d, Metal tolerance was evaluated by the effects of the metal on root elongation. Races from the contaminated site were found to be metal-tolerant, as indicated by higher tolerance indices (TIs) than races from the non-contaminated site. Mercury and cadmium at lower concentrations and zinc at all concentrations stimulated root growth in tolerant races, resulting in a TI of more than 100%. This indicated a requirement of the metal ion for better root growth. Compared to non-tolerant races, the tolerant races exhibited higher catalase, peroxidase and acid phosphatase activities as well as higher thiol levels. The over-all study thus indicated that races of C. barbata from the mercury-contaminated site were not only tolerant to mercury but also co-tolerant to cadmium and zinc. Biochemical studies provided evidence that the tolerant races were physiologically distinct from the intolerant races
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|a Journal Article
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|a Chloris barbata
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|a acid phosphatase
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| 650 |
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|a cadmium
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|a catalase
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|a co-tolerance
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| 650 |
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|a mercury
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|a non-protein SH
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|a peroxidase
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|a tolerance
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| 650 |
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|a zinc
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| 700 |
1 |
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|a Lenka, Maheswar
|e verfasserin
|4 aut
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| 700 |
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|a Panda, Brahma B
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 128(1994), 1 vom: 25. Sept., Seite 165-171
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
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|g volume:128
|g year:1994
|g number:1
|g day:25
|g month:09
|g pages:165-171
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|u http://dx.doi.org/10.1111/j.1469-8137.1994.tb03999.x
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