Chromium III-iron interaction in iron sufficient and iron deficient bean plants. II. ultrastructural aspects.

C. Poschenrieder; M. D. Vazquez; A. Bonet; J. Barcelo

doi:10.1080/01904169109364212

Chromium III-iron interaction in iron sufficient and iron deficient bean plants. II. ultrastructural aspects.

C. Poschenrieder, M. D. Vazquez, A. Bonet, J. Barcelo

Department of Animal Biology, Plant Biology and Ecology

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

The influence of a growth stimulating low Cr III concentration (1.0 μM) on chloroplast ultrastructure, the Fe, Cr, and Mn content of chloroplast extracts, o-phenantroline extractable leaf Fe, and catalase activity was studied in both Fe-sufficient and Fe-deficient bush bean (Phaseolus vulgaris L.) plants. Chromium supply hardly affected the chloroplast ultrastructure of Fe-sufficient plants but significantly improved chloroplast ultrastructure in Fe-deficient leaves. Generally, Cr supply did not significantly influence chloroplast Fe-content, but increased the Fe/Mn ratio in Fe-deficient chloroplasts. In leaves from Fe-deficient plants, o-phenantroline extractable Fe was significantly increased, while catalase activity was not significantly influenced by Cr supply. The possible mechanisms of the beneficial effects of Cr III in Fe-deficient plants are discussed. © 1991 by Marcel Dekker, Inc.

Original language	English
Pages (from-to)	415-428
Journal	Journal of Plant Nutrition
Volume	14
Issue number	4
DOIs	https://doi.org/10.1080/01904169109364212
Publication status	Published - 1 Apr 1991

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title = "Chromium III-iron interaction in iron sufficient and iron deficient bean plants. II. ultrastructural aspects.",

abstract = "The influence of a growth stimulating low Cr III concentration (1.0 μM) on chloroplast ultrastructure, the Fe, Cr, and Mn content of chloroplast extracts, o-phenantroline extractable leaf Fe, and catalase activity was studied in both Fe-sufficient and Fe-deficient bush bean (Phaseolus vulgaris L.) plants. Chromium supply hardly affected the chloroplast ultrastructure of Fe-sufficient plants but significantly improved chloroplast ultrastructure in Fe-deficient leaves. Generally, Cr supply did not significantly influence chloroplast Fe-content, but increased the Fe/Mn ratio in Fe-deficient chloroplasts. In leaves from Fe-deficient plants, o-phenantroline extractable Fe was significantly increased, while catalase activity was not significantly influenced by Cr supply. The possible mechanisms of the beneficial effects of Cr III in Fe-deficient plants are discussed. {\textcopyright} 1991 by Marcel Dekker, Inc.",

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T1 - Chromium III-iron interaction in iron sufficient and iron deficient bean plants. II. ultrastructural aspects.

AU - Poschenrieder, C.

AU - Vazquez, M. D.

AU - Bonet, A.

AU - Barcelo, J.

PY - 1991/4/1

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N2 - The influence of a growth stimulating low Cr III concentration (1.0 μM) on chloroplast ultrastructure, the Fe, Cr, and Mn content of chloroplast extracts, o-phenantroline extractable leaf Fe, and catalase activity was studied in both Fe-sufficient and Fe-deficient bush bean (Phaseolus vulgaris L.) plants. Chromium supply hardly affected the chloroplast ultrastructure of Fe-sufficient plants but significantly improved chloroplast ultrastructure in Fe-deficient leaves. Generally, Cr supply did not significantly influence chloroplast Fe-content, but increased the Fe/Mn ratio in Fe-deficient chloroplasts. In leaves from Fe-deficient plants, o-phenantroline extractable Fe was significantly increased, while catalase activity was not significantly influenced by Cr supply. The possible mechanisms of the beneficial effects of Cr III in Fe-deficient plants are discussed. © 1991 by Marcel Dekker, Inc.

AB - The influence of a growth stimulating low Cr III concentration (1.0 μM) on chloroplast ultrastructure, the Fe, Cr, and Mn content of chloroplast extracts, o-phenantroline extractable leaf Fe, and catalase activity was studied in both Fe-sufficient and Fe-deficient bush bean (Phaseolus vulgaris L.) plants. Chromium supply hardly affected the chloroplast ultrastructure of Fe-sufficient plants but significantly improved chloroplast ultrastructure in Fe-deficient leaves. Generally, Cr supply did not significantly influence chloroplast Fe-content, but increased the Fe/Mn ratio in Fe-deficient chloroplasts. In leaves from Fe-deficient plants, o-phenantroline extractable Fe was significantly increased, while catalase activity was not significantly influenced by Cr supply. The possible mechanisms of the beneficial effects of Cr III in Fe-deficient plants are discussed. © 1991 by Marcel Dekker, Inc.

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