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Research article2005Peer reviewed

Identification of a superoxide dismutase gene from the conifer pathogen Heterobasidion annosum

Karlsson M, Stenlid J, Olson A

Abstract

The SOD1 gene, encoding a manganese-type superoxide dismutase (Mn-SOD), was identified from a Heterobasidion annosum infection-stage cDNA library. The SOD1 gene consists of an open reading frame of 618 bp, predicted to encode a protein of 205 amino acids with an estimated molecular mass of 22.7 kDa. All conserved amino acids of the Mn-SOD family, including the Parker-Blake signature and four metal-binding residues, are present in the predicted sod I protein. SOD1 expression is induced by paraquat and during early infection of Scots pine, but is not regulated by nitrogen availability. (c) 2005 Elsevier Ltd. All rights reserved

Keywords

Heterobasidion annosum; Pinus sylvestris; Conifer root rot; Forest pathology; Gene expression; Superoxide dismutase; Realtime-PCR; Phylogeny

Published in

Physiological and Molecular Plant Pathology
2005, Volume: 66, number: 3, pages: 99-107 Publisher: ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD