Gregory R OBrian

Works (10)

Updated: July 16th, 2023 21:15
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2020 journal article

Aspergillus flavus Exploits Maize Kernels Using an "Orphan" Secondary Metabolite Cluster

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 21(21).

By: L. Antiga*, S. La Starza*, C. Miccoli, S. D'Angeli *, V. Scala, M. Zaccaria *, X. Shu*, G. Obrian n ...

co-author countries: Italy 🇮🇹 United States of America 🇺🇸
author keywords: Aspergillus flavus; maize kernel; salicylate hydroxylase; npp1; effectors; quercetin; histology
MeSH headings : Aflatoxins / genetics; Aflatoxins / metabolism; Aspergillosis / genetics; Aspergillosis / metabolism; Aspergillus flavus / genetics; Aspergillus flavus / pathogenicity; Aspergillus flavus / physiology; Catechols / metabolism; Crops, Agricultural / genetics; Crops, Agricultural / metabolism; Crops, Agricultural / microbiology; Disease Resistance / genetics; Gene Expression Regulation, Plant; Metabolic Networks and Pathways / genetics; Mixed Function Oxygenases / genetics; Mixed Function Oxygenases / metabolism; Multigene Family; Organisms, Genetically Modified; Plant Diseases / genetics; Plant Diseases / microbiology; Quercetin / metabolism; Salicylic Acid / metabolism; Seeds; Zea mays / genetics; Zea mays / metabolism; Zea mays / microbiology
Source: Web Of Science
Added: November 30, 2020

2018 journal article

Carbon Dioxide Mediates the Response to Temperature and Water Activity Levels in Aspergillus flavus during Infection of Maize Kernels

TOXINS, 10(1).

By: M. Gilbert *, A. Medina*, B. Mack *, M. Lebar *, A. Rodriguez*, D. Bhatnagar *, N. Magan *, G. Obrian n, G. Payne n

co-author countries: Spain 🇪🇸 United Kingdom of Great Britain and Northern Ireland 🇬🇧 United States of America 🇺🇸
author keywords: aflatoxin; Zea mays; climate change; secondary metabolites; RNA-seq
MeSH headings : Aflatoxin B1 / metabolism; Aspergillus flavus / genetics; Aspergillus flavus / metabolism; Carbon Dioxide; Edible Grain / microbiology; Plant Diseases; Temperature; Transcriptome; Water; Zea mays / microbiology
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Localization, morphology and transcriptional profile of Aspergillus flavus during seed colonization

MOLECULAR PLANT PATHOLOGY, 14(9), 898–909.

By: A. Dolezal n, G. Obrian n, D. Nielsen n , C. Woloshuk *, R. Boston n & G. Payne n

co-author countries: United States of America 🇺🇸
MeSH headings : Aspergillus flavus / genetics; Aspergillus flavus / growth & development; Aspergillus flavus / pathogenicity; Chromosomes, Fungal / genetics; Colony Count, Microbial; DNA, Fungal / isolation & purification; Electrophoresis, Agar Gel; Endosperm / microbiology; Gene Expression Profiling; Gene Expression Regulation, Fungal; Genes, Fungal / genetics; Humans; Seeds / cytology; Seeds / microbiology; Transcription Factors / metabolism; Transcription, Genetic; Zea mays / cytology; Zea mays / microbiology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2008 journal article

Quantification of urinary aflatoxin B-1 dialdehyde metabolites formed by aflatoxin aldehyde reductase using isotope dilution tandem mass spectrometry

CHEMICAL RESEARCH IN TOXICOLOGY, 21(3), 752–760.

By: D. Johnson n, P. Egner n, G. OBrian n, N. Glassbrook n, B. Roebuck n, T. Sutter  n, G. Payne n, T. Kensler  n, J. Groopman n

co-author countries: United States of America 🇺🇸
MeSH headings : Aflatoxin B1 / urine; Aldehyde Reductase / metabolism; Aldehydes / metabolism; Animals; Carcinogens / metabolism; Chromatography, Affinity; Chromatography, High Pressure Liquid; Diet; Escherichia coli / metabolism; Glucuronidase / urine; Male; Radioisotope Dilution Technique; Rats; Rats, Sprague-Dawley; Reference Standards; Solid Phase Extraction; Spectrometry, Mass, Electrospray Ionization; Sulfatases / urine
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Elucidation of veA-dependent genes associated with aflatoxin and sclerotial production in Aspergillus flavus by functional genomics

Applied Microbiology and Biotechnology, 76(5), 1107–1118.

By: J. Cary *, G. OBrian n, D. Nielsen n , W. Nierman*, P. Harris-Coward*, J. Yu *, D. Bhatnagar *, T. Cleveland *, G. Payne n, A. Calvo *

co-author countries: United States of America 🇺🇸
author keywords: Aspergillus flavus; veA; aflatoxin; sclerotia; microarray
MeSH headings : Aflatoxins / biosynthesis; Anthraquinones / metabolism; Aspergillus flavus / genetics; Aspergillus flavus / growth & development; Aspergillus flavus / metabolism; Fungal Proteins / genetics; Fungal Proteins / metabolism; Gene Expression Profiling; Gene Expression Regulation, Fungal; Gene Library; Genomics; Oligonucleotide Array Sequence Analysis / methods
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2007 article

Function and regulation of aflJ in the accumulation of aflatoxin early pathway intermediate in Aspergillus flavus

FOOD ADDITIVES AND CONTAMINANTS, Vol. 24, pp. 1043–1050.

By: W. Du n, G. Obrian n & G. Payne n

co-author countries: United States of America 🇺🇸
author keywords: aflatoxin; regulation
Source: Web Of Science
Added: August 6, 2018

2007 journal article

The effect of elevated temperature on gene transcription and aflatoxin biosynthesis

MYCOLOGIA, 99(2), 232–239.

By: G. OBrian n, D. Georgianna n, J. Wilkinson*, J. Yu *, H. Abbas *, D. Bhatnagar, T. Cleveland *, W. Nierman, G. Payne n

co-author countries: United States of America 🇺🇸
author keywords: AFLR; biosynthesis; micro-arrays
MeSH headings : Aflatoxins / biosynthesis; Aflatoxins / genetics; Aspergillus flavus / genetics; Aspergillus flavus / physiology; DNA-Binding Proteins / genetics; Fungal Proteins / genetics; Gene Expression Profiling; Gene Expression Regulation, Fungal; Hot Temperature; Polymerase Chain Reaction; Transcription Factors / genetics
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Aflatoxin production in peanut lines selected to represent a range of linoleic acid concentrations

JOURNAL OF FOOD PROTECTION, 68(1), 126–132.

By: H. Xue n, T. Isleib n, G. Payne n, W. Novitzky n & G. Obrian n

co-author countries: United States of America 🇺🇸
MeSH headings : Aflatoxins / analysis; Aflatoxins / biosynthesis; Arachis / genetics; Aspergillus flavus / growth & development; Aspergillus flavus / metabolism; Consumer Product Safety; Fatty Acids, Unsaturated / analysis; Fatty Acids, Unsaturated / pharmacology; Food Contamination / analysis; Food Microbiology; Genetic Variation; Humans; Linoleic Acid / analysis; Linoleic Acid / pharmacology; Peanut Oil; Plant Oils / chemistry; Predictive Value of Tests; Regression Analysis
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Comparison of aflatoxin production in normal- and high-oleic backeross-derived peanut lines

PLANT DISEASE, 87(11), 1360–1365.

By: H. Xue*, T. Isleib*, G. Payne*, R. Wilson*, W. Novitzky* & . G O'Brian*

co-author countries: United States of America 🇺🇸
author keywords: Arachis hypogaea
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Identification of genes differentially expressed during aflatoxin biosynthesis in Aspergillus flavus and Aspergillus parasiticus

FUNGAL GENETICS AND BIOLOGY, 39(2), 118–127.

By: G. OBrian n, A. Fakhoury n & G. Payne n

co-author countries: United States of America 🇺🇸
author keywords: aflatoxin; Aspergillus; ESTs; microarrays
MeSH headings : Aflatoxins / biosynthesis; Aflatoxins / genetics; Aspergillus / genetics; Aspergillus / metabolism; Aspergillus flavus / genetics; Aspergillus flavus / metabolism; DNA, Complementary / analysis; DNA, Fungal / analysis; Expressed Sequence Tags; Gene Deletion; Gene Expression Profiling; Genes, Fungal; Molecular Sequence Data; Oligonucleotide Array Sequence Analysis; RNA, Fungal / genetics; RNA, Messenger / analysis
Source: Web Of Science
Added: August 6, 2018