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Plant Physiology Preview Published on February 17, 2006; 10.1104/pp.105.074138
Received November 15, 2005 Light-regulated, tissue- and cell differentiation-specific expression of the Arabidopsis Fe(III)-chelate reductase gene AtFRO6
State Key laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Graduate School, Chinese Academy of Sciences, Beijing 100039, China * Corresponding author; email: jrzuo{at}genetics.ac.cn.
Iron is an essential element for almost all living organisms, actively involved in a variety of cellular activities. To acquire iron from soil, strategy I plants such as Arabidopsis must first reduce ferric to ferrous iron by Fe(III)-chelate reductases (FROs). FRO genes display distinctive expression patterns in several plant species. However, regulation of FRO genes is not well understood. Here, we report a systematic characterization of the AtFRO6 expression during plant growth and development. AtFRO6, encoding a putative Fe(III)-chelate reductase, is specifically expressed in green-aerial tissues in a light-dependent manner. Analysis of mutant promoter-
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