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2015 | 37 | 03 |

Tytuł artykułu

Quantitative analysis of phosphorus, iron, and arsenic in the inner and outer portions of rice roots: an interaction of arsenic with iron

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Two experiments were conducted to observe the effect of arsenic (As; NaAsO2) and additional Fe3+ (Fe3+-EDTA) on phosphorus (P), iron (Fe), and As in inner and outer portions of rice roots (Oryza sativa L. cv. Akitakomachi) grown for 14 days. Measurement of elements was done with PIXE (particle-induced X-ray emission) system. The first experiment contained various rates of As ranging from 0 to as high as 26.8 lM with a constant rate of 10 lM Fe3+, while in the second experiment, the Fe concentrations were varied from 10 to 50 lM with As at 0 and 13.4 lM. The intensity of the reddish coloration in the roots increased with increasing As in the medium. Phosphorus adsorbed by apoplastic Fe and Fe-plaque (outer portion) was not detected, suggesting that P might not have complexed with apoplastic Fe or with Fe-plaque. Iron was mostly concentrated in the outer portion of the roots whereas As was mostly concentrated in the inner portion. High-Fe3+ in the medium caused a decrease in P and As concentrations in the inner portion of the roots.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

37

Numer

03

Opis fizyczny

Article: 67 [7 p.], fig.,ref.

Twórcy

autor
  • The United Graduate School of Agricultural Sciences, Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan
  • Department of Soil, Water and Environment, University of Dhaka, Dhaka 1000, Bangladesh
autor
  • The United Graduate School of Agricultural Sciences, Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-96b3d775-dd33-4f16-8554-c90597cc21ac
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