Kuang-Ren Chung

Works (9)

Updated: February 10th, 2025 14:29

2005 review

Photoactivated perylenequinone toxins in fungal pathogenesis of plants

[Review of ]. FEMS MICROBIOLOGY LETTERS, 252(2), 197–206.

By: M. Daub n, S. Herrero n & K. Chung*

author keywords: plant disease; non-specific toxin; active oxygen; pyridoxine; zinc cluster transcription factor
MeSH headings : Ascomycota / genetics; Ascomycota / metabolism; Light; Molecular Structure; Mycotoxins / chemistry; Mycotoxins / metabolism; Mycotoxins / toxicity; Perylene / analogs & derivatives; Perylene / chemistry; Perylene / metabolism; Perylene / toxicity; Photosensitizing Agents / toxicity; Plant Diseases / microbiology; Reactive Oxygen Species / metabolism
TL;DR: This review focuses on the well studied perylenequinone toxin, cercosporin, produced by species in the genus Cercospora, with the characterization of genes encoding a polyketide synthase and a major facilitator superfamily transporter representing the first and last steps of the biosynthetic pathway. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2003 journal article

Cercosporin-deficient mutants by plasmid tagging in the asexual fungus Cercospora nicotianae

MOLECULAR GENETICS AND GENOMICS, 270(2), 103–113.

By: K. Chung n, M. Ehrenshaft n, D. Wetzel n & M. Daub n

author keywords: photosensitizer; plasmid rescue; active oxygen
MeSH headings : Amino Acid Sequence; Ascomycota / genetics; Ascomycota / metabolism; Ascomycota / pathogenicity; Base Sequence; Chromosome Mapping; DNA, Fungal / genetics; Gene Targeting; Genetic Vectors; Molecular Sequence Data; Multienzyme Complexes / genetics; Multienzyme Complexes / metabolism; Mutation; Mycotoxins / biosynthesis; Mycotoxins / genetics; Perylene / analogs & derivatives; Perylene / metabolism; Phenotype; Pigmentation; Plasmids / genetics; Sequence Homology, Amino Acid; Transformation, Genetic
TL;DR: The adaptation of plasmid insertion and restriction enzyme-mediated integration to produce cercosporin toxin-deficient mutants in the asexual phytopathogenic fungus Cercospora nicotianae is successfully adapted, providing the first molecular evidence that cercOSporin is synthesized via a polyketide pathway as previously hypothesized. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2003 journal article

Expression of the cercosporin toxin resistance gene (CRG1) as a dicistronic mRNA in the filamentous fungus Cercospora nicotianae

CURRENT GENETICS, 43(6), 415–424.

By: K. Chung*, M. Daub n & M. Ehrenshaft n

author keywords: photosensitizer; singlet oxygen; toxin; transcription factor; uracil transporter; zinc finger DNA-binding domain
MeSH headings : Amino Acid Sequence; Ascomycota / drug effects; Ascomycota / genetics; Ascomycota / metabolism; Base Sequence; Drug Resistance / genetics; Fungal Proteins / biosynthesis; Fungal Proteins / genetics; Gene Expression; Genes; Genome, Fungal; Molecular Sequence Data; Nucleotide Transport Proteins / genetics; Nucleotide Transport Proteins / metabolism; Perylene / analogs & derivatives; Perylene / pharmacology; RNA, Fungal / metabolism; RNA, Messenger / metabolism; Reverse Transcriptase Polymerase Chain Reaction; Transcription Factors / genetics; Transcription Factors / metabolism; Transcription, Genetic
TL;DR: It is concluded that the 4.5-kb transcript is a dicistronic mRNA of both CRG1 and PUT1 in the fungus C. nicotianae, the first example of a d physicistronic mRNA identified in filamentous fungi. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2002 journal article

Functional expression and cellular localization of cercosporin-resistance proteins fused with the GFP in Cercospora nicotianae

CURRENT GENETICS, 41(3), 159–167.

By: K. Chung n, M. Ehrenshaft n & M. Daub n

author keywords: photosensitizer; singlet oxygen; fungi; pyridoxine
MeSH headings : Ascomycota / drug effects; Ascomycota / genetics; Ascomycota / metabolism; Base Sequence; Blotting, Western; DNA Primers; Fungal Proteins / genetics; Fungal Proteins / metabolism; Green Fluorescent Proteins; Luminescent Proteins / metabolism; Microscopy, Confocal; Perylene / analogs & derivatives; Perylene / pharmacology; Recombinant Fusion Proteins / genetics; Recombinant Fusion Proteins / metabolism; Transformation, Genetic
TL;DR: Transformation of these constructs into strains mutant in these respective genes resulted in green-fluorescent transformants complemented for the mutant phenotype, a result inconsistent with microscopic observation and computer sequence analysis, which suggests that CRG1 is a membrane protein. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

1999 journal article

A novel gene required for cercosporin toxin resistance in the fungus Cercospora nicotianae

Molecular and General Genetics, 262(2), 382–389.

By: K. Chung n, A. Jenns n, M. Ehrenshaft n & M. Daub n

MeSH headings : Amino Acid Sequence; Ascomycota / genetics; Base Sequence; Cloning, Molecular; DNA, Fungal; Fungal Proteins / genetics; Fungal Proteins / physiology; Gene Expression; Genes, Fungal; Genetic Complementation Test; Molecular Sequence Data; Mutation; Perylene / analogs & derivatives; Phenotype; Sequence Homology, Nucleic Acid
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Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

Functional characterization of SOR1, a gene required for resistance to photosensitizing toxins in the fungus Cercospora nicotianae

CURRENT GENETICS, 34(6), 478–485.

By: M. Ehrenshaft n, K. Chung n, A. Jenns n & M. Daub n

author keywords: photosensitizer resistance; singlet oxygen resistance; Cercospora spp.; cercosporin
MeSH headings : Amino Acid Sequence; Ascomycota / drug effects; Ascomycota / genetics; Ascomycota / radiation effects; Base Sequence; Culture Media; DNA Primers / genetics; DNA, Fungal / genetics; Drug Resistance, Microbial / genetics; Fungal Proteins / genetics; Gene Expression Regulation, Fungal / drug effects; Gene Expression Regulation, Fungal / radiation effects; Genes, Fungal; Genetic Complementation Test; Molecular Sequence Data; Mutation; Osmolar Concentration; Perylene / analogs & derivatives; Perylene / pharmacology; Phenotype; Photosensitizing Agents / pharmacology; RNA, Fungal / genetics; RNA, Fungal / metabolism; RNA, Messenger / genetics; RNA, Messenger / metabolism
TL;DR: Southern analysis indicates that SOR1 is present in other fungi that synthesize structurally related perylenequinone photosensitizers that are complemented toPhotosensitizer resistance by transformation with S OR1. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

1998 journal article

Active oxygen in fungal pathogenesis of plants: the role of cercosporin in Cercospora diseases

Recent Advances in Phytochemistry, 32(1998), 31–56.

By: M. Daub, M. Ehrenshaft, A. Jenns & K. Chung

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

SOR1, a gene required for photosensitizer and singlet oxygen resistance in Cercospora fungi, is highly conserved in divergent organisms

MOLECULAR CELL, 1(4), 603–609.

By: M. Ehrenshaft n, A. Jenns n, K. Chung n & M. Daub n

MeSH headings : Cloning, Molecular; Conserved Sequence; DNA, Fungal / analysis; Enzyme Inhibitors / pharmacology; Fungal Proteins / genetics; Fungal Proteins / metabolism; Fungi / drug effects; Fungi / genetics; Gene Expression Regulation, Fungal; Molecular Sequence Data; Mutagenesis / drug effects; Oxygen / metabolism; Perylene / analogs & derivatives; Perylene / pharmacology; Photic Stimulation; Photochemistry; Photosensitizing Agents / pharmacology; Sequence Analysis, DNA; Sequence Homology, Amino Acid
TL;DR: The characterization of SOR1 provides an additional phenotype to this large group of evolutionarily conserved genes, which is highly conserved in organisms from widely diverse taxa. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

1997 journal article

Vegetative compatibility between and within Epichloe species

MYCOLOGIA, 89(4), 558–565.

By: K. Chung* & C. Schardl *

author keywords: complementation; heterokaryons; interspecific hybridization; nitrate utilization
Source: Web Of Science
Added: August 6, 2018

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