CBR cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana.
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Nature408(6814)823-6(2000 Dec)

CBR1 has a crucial role in increasing the levels of unsaturated fatty acids, which activate the PM H(+)-ATPase and thus reduce rhizosphere pH
Title: Cytochrome b5 Reductase 1 Triggers Serial Reactions that Lead to Iron Uptake in Plants.

These results indicate that cytochrome b5 reductase is not essential during vegetative growth but is required for correct pollen function and seed maturation.
Title: Cytochrome b5 reductase encoded by CBR1 is essential for a functional male gametophyte in Arabidopsis.