2006, 2004, English, Article, Journal or magazine article edition: Do iron plaque and genotypes affect arsenate uptake and translocation by rice seedlings (Oryza sativa L.) grown in solution culture? Liu, W.; Zhu, Y.; Smith, F.; ...

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Physical Description
  • journal article
Published
  • Oxford Univ Press, 2006-06-19T05:18:32Z 2004
Language
  • English

Edition details

Title
  • Do iron plaque and genotypes affect arsenate uptake and translocation by rice seedlings (Oryza sativa L.) grown in solution culture?
Author
  • Liu, W.
  • Zhu, Y.
  • Smith, F.
  • Smith, S.
Published
  • Oxford Univ Press, 2006-06-19T05:18:32Z 2004
Physical Description
  • journal article
Subjects
Summary
  • The effects of Fe concentrations in the pretreatment solution on the induction of plaque and the differences between genotypes on arsenate uptake by and translocation within rice seedlings grown in nutrient solution in the greenhouse were investigated. After iron plaque on rice roots was induced in solutions containing 20, 40, 60, 80, and 100 mg Fe2+ l(-1), seedlings were transplanted into nutrient solution with 0.5 mg As l(-1). The formation of iron plaque was clearly visible as a reddish coating on the root surface after 12 h induction. Fe2+ concentrations in the pretreatment solution and 0.5 mg As l(-1) in the treatment solutions did not significantly affect rice growth. There was a significant correlation between the concentrations of Fe and As in iron plaque on the root surface for the three genotypes. About 75-89% of total As was concentrated in iron plaque (DCB-extracts). There were no significant differences in As concentrations in the roots between the three genotypes; however, As concentrations in shoots differed significantly between them. Arsenic concentrations in shoots were positively correlated with iron concentrations in the shoots. The results suggest that iron plaque may act as a 'buffer' for As in the rhizosphere.
Language
  • English
Related Resource
Identifier
  • oai:digital.library.adelaide.edu.au:2440/​1830
  • Journal of Experimental Botany, 2004; 55(403):1707-1713
  • 0022-0957
  • 1460-2431
  • 0020040885
  • 10.1093/​jxb/​erh205
  • 000223348400011
  • 2-s2.0-4043095550
  • 56709

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University of Adelaide. Barr Smith Library. University of Adelaide: Institutional Repository. Open to the public Article; Journal or magazine article English
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