Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10872220 | FEBS Letters | 2010 | 8 Pages |
Abstract
A key step in sulfate assimilation into cysteine is the reduction of sulfite to sulfide by sulfite reductase (SiR). This enzyme is encoded by three genes in the moss Physcomitrella patens. To obtain a first insight into the roles of the individual isoforms, we deleted the gene encoding the SiR1 isoform in P. patens by homologous recombination and subsequently analysed the ÎSiR1 mutants. While ÎSiR1 mutants showed no obvious alteration in sulfur metabolism, their regeneration from protoplasts and their ability to produce mature spores was significantly affected, highlighting an unexpected link between moss sulfate assimilation and development, that is yet to be characterized.
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Authors
Gertrud Wiedemann, Corinna Hermsen, Michael Melzer, Annette Büttner-Mainik, Heinz Rennenberg, Ralf Reski, Stanislav Kopriva,