1993
DOI: 10.1007/bf00336433
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Reductive dissolution of crystalline and amorphous Fe(III) oxides by microorganisms in submerged soil

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Cited by 63 publications
(41 citation statements)
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“…The findings obtained in this study suggest that the mixed Fe (III) oxide in slag I was a crystalline material because Fe-o was derived from poorly crystalline Fe(IlI) oxides (Walker 1983;Postma 1993;Reyes and Torrent 1997). Amorphous Fe (III) oxides are easily reduced to Fe 2 +, unlike crystalline Fe(III) oxides in flooded soil (Wahid and Kamalam 1993). The Fe3+ content of slag I was lower than that of other slags irrespective of the EDT A content in the pH region of 6 to 7 (Fig.…”
Section: Methodsmentioning
confidence: 62%
“…The findings obtained in this study suggest that the mixed Fe (III) oxide in slag I was a crystalline material because Fe-o was derived from poorly crystalline Fe(IlI) oxides (Walker 1983;Postma 1993;Reyes and Torrent 1997). Amorphous Fe (III) oxides are easily reduced to Fe 2 +, unlike crystalline Fe(III) oxides in flooded soil (Wahid and Kamalam 1993). The Fe3+ content of slag I was lower than that of other slags irrespective of the EDT A content in the pH region of 6 to 7 (Fig.…”
Section: Methodsmentioning
confidence: 62%
“…Therefore, Fe is considered to be the major cation which binds organic matter to the subsoil in paddy fields. Amorphous iron which was transformed from crystalline iron during submerged incubation (Wahid and Kamalam 1993) may also contribute to the adsorption of DOC in the subsoil.…”
Section: Discussionmentioning
confidence: 99%
“…In submerged rice soil, many kinds of organic materials are present, and Fe(III) oxides become soluble by combining with some of these organic materials in soil (Esaki et al 1993). Almost all the Fe(III) reduction is carried out by Fe(III)-reducing bacteria in soil (Takai and Kamura 1966), and the bacteria utilize Fe(III) compounds in the soil solution (Wahid and Kamalan 1993). The electron donor ability of the soil was greater than that of Fe(D) presumably because the solubility of some organic materials in soil was bigger than that of Fe(D).…”
Section: Experiments Imentioning
confidence: 99%
“…Although the Fe content in these materials is high, Fe is not easily dissolved in the soil solution (Nozoe et al 1999), because the ratio of amorphous Fe oxides to crystalline Fe oxides is low. The amorphous Fe oxides are more easily dissolved in the soil solution than the crystalline Fe oxides (Wahid and Kamalan 1993). The majority of Fe which is contained in the first and second groups consist of Fe(IIT).…”
Section: Experiments IImentioning
confidence: 99%