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Journal of Fungi, Volume 8, Issue 2

2022 February - 122 articles

Cover Story: Alternative respiratory pathways of the mitochondrial electron transport chain allow divergence of electron movement from the canonical cytochrome c route. We identified an alternative oxidase (Aox) in the fungus Sporisorium reilianum f. sp. zeae (SRZ) through a loss-of-function approach. Aox appears involved in developmental regulation and stress responses in plants and other organisms. The putative Aox of SRZ was dispensable for growth of the fungus in vitro, but crucial during respiratory stress. Additionally, pathogenicity of the fungus in its host plant, maize, was compromised by loss of Aox. Finally, higher levels of Aox mRNA are present in diploid teliospores, consistent with previous studies where alternative respiration was favored during quiescent stages of an organism’s life cycle. View this paper
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J. Fungi - ISSN 2309-608X