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Article

Reduced virulence caused by meiotic instability of the TOX2 chromosome of the maize pathogen Cochliobolus carbonum.

Molecular plant-microbe interactions : MPMI - 1 Jan 2000

Pitkin J W, Nikolskaya A, Ahn J H, Walton J D

Abstract excerpt

The mechanisms by which pathogenic fungi evolve are poorly understood. Production of the host-selective cyclic peptide HC-toxin is controlled by a complex locus, TOX2, in the plant pathogen Cochliobolus carbonum. Crosses between toxin-producing (Tox2+) and toxin-nonproducing (Tox2-) isolates, as well as crosses between isolates in which the TOX2 genes were on chromosomes of different size, yielded progeny that...

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Source

Identifiers

PMID: 10656588
DOI: 10.1094/MPMI.2000.13.1.80

Genes

TOX2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Research trail→

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Reduced virulence caused by meiotic instability of the TOX2 chromosome of the maize pathogen Cochliobolus carbonum.PMID 10656588Read ↗

Chromosomal organization of TOX2, a complex locus controlling host-selective toxin biosynthesis in Cochliobolus carbonum.Semantic proximity Read ↗

Regulation of cyclic peptide biosynthesis and pathogenicity in Cochliobolus carbonum by TOXEp, a novel protein with a bZIP basic DNA-binding motif and four ankyrin repeats.Semantic proximity Read ↗

A putative branched-chain-amino-acid transaminase gene required for HC-toxin biosynthesis and pathogenicity in Cochliobolus carbonum.Semantic proximity Read ↗

A fatty acid synthase gene in Cochliobolus carbonum required for production of HC-toxin, cyclo(D-prolyl-L-alanyl-D-alanyl-L-2-amino-9, 10-epoxi-8-oxodecanoyl).Semantic proximity Read ↗

Insertional mutagenesis and cloning of the gene required for the biosynthesis of the non-host-specific toxin in Cochliobolus lunatus that causes maize leaf spot.Semantic proximity Read ↗

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Gene duplication drove functional divergence of two effectors in the maize anthracnose pathogenSemantic proximity Read ↗

A decarboxylase encoded at the Cochliobolus heterostrophus translocation-associated Tox1B locus is required for polyketide (T-toxin) biosynthesis and high virulence on T-cytoplasm maize.Semantic proximity Read ↗

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A eukaryotic alanine racemase gene involved in cyclic peptide biosynthesis.Semantic proximity Read ↗

Accumulation of host-specific toxin produced by Cochliobolus carbonum during pathogenesis of maizeSemantic proximity Read ↗

Functional Analysis of All Nonribosomal Peptide Synthetases in <i>Cochliobolus heterostrophus</i> Reveals a Factor, NPS6, Involved in Virulence and Resistance to Oxidative StressSemantic proximity Read ↗

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