Abstract
Sulfite reductase (SiR) and nitrite reductase (NiR) belong to a family of oxidoreductases with conserved siroheme and iron-sulfur cluster domains. While functional redundancy has been characterized extensively between the two enzymes in prokaryotes, not much work has been done in characterizing the functional redundancy between assimilatory SiR and NiR in plants. Because of the cytotoxic nature of sulfite and nitrite, the substrates for SiR and NiR respectively, proper functioning of these two proteins is essential for plant survival. Here, we describe the preliminary characterization of AcNiR1 in a sulfur-accumulating species onion (Allium cepa L.) and provide evidence for its functional redundancy with AcSiR1.
Michael T. McManus: Author was deceased at the time of publication
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Joshi, S., Leung, S.C.S., McCallum, J.A., McManus, M.T. (2015). Comparison of Nitrite Reductase (AcNiR1) with Sulfite Reductase (AcSiR1) in Allium cepa (L.). In: De Kok, L., Hawkesford, M., Rennenberg, H., Saito, K., Schnug, E. (eds) Molecular Physiology and Ecophysiology of Sulfur. Proceedings of the International Plant Sulfur Workshop. Springer, Cham. https://doi.org/10.1007/978-3-319-20137-5_9
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DOI: https://doi.org/10.1007/978-3-319-20137-5_9
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-20136-8
Online ISBN: 978-3-319-20137-5
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