P.A. O’Brien

2.8k citations

78 papers · 2.0k indexed · h-index 23

Impact in

Cell Biology top 2%
- Plant Pathogens and Fungal Diseases
Plant Science top 1%
- Plant Pathogens and Resistance
- Plant-Microbe Interactions and Immunity
- Plant Disease Resistance and Genetics
- Mycorrhizal Fungi and Plant Interactions

Papers in

Plant Science 55
- Plant Pathogens and Resistance 33
- Plant Disease Resistance and Genetics 23
- Plant-Microbe Interactions and Immunity 8
- Legume Nitrogen Fixing Symbiosis 7
- Mycorrhizal Fungi and Plant Interactions 5
Endocrinology 7
- Plant and Fungal Interactions Research 7

Co-authors: G.E.St.J. Hardy I.C. Tommerup Mark P. Dobrowolski J. McComb Joanne E. Barton B. L. Shearer Nari Williams Neale L. Bougher
Journals: Plant Pathology (5 papers)Forest Pathology (3 papers)Photochemistry and Photobiology (3 papers)Journal of Experimental Botany (3 papers)Mycologia (2 papers)
Partner nations: Australia Ireland United States

In The Last Decade

P.A. O’Brien

77 papers receiving 1.9k citations

Peers

Countries citing papers authored by P.A. O’Brien

Since Specialization

Citations

This map shows the geographic impact of P.A. O’Brien's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P.A. O’Brien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P.A. O’Brien more than expected).

Fields of papers citing papers by P.A. O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.A. O’Brien. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P.A. O’Brien. The network helps show where P.A. O’Brien may publish in the future.

Co-authorship network

The 25 scholars most cited alongside P.A. O’Brien, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with P.A. O’Brien Line = papers co-authored together P.A. O’Brien links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	A prospective observational study for a Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment (FAITH): study protocol BMC Psychiatry ·Raquel Lemos, Otavio da Silva Ferreira, Pedro Antônio Muniz Ferreira, P.A. O’Brien, M Czynski, Gabriela Ribeiro, Miguel Martín, Marı́a del Monte-Millán, Sara López‐Tarruella, Tatiana Massarrah, 杉浦克彦, Giuseppe Frau, S. V. Cheplyuk, Deng Yinhu, Albino J. Oliveira‐Maia	2022	5
2	Acclimation responses of Arabidopsis thaliana to sustained phosphite treatments Journal of Experimental Botany ·Oliver Berkowitz, Ricarda Jost, P. Moyo, Ricarda Fenske, Patrick M. Finnegan, P.A. O’Brien, G.E.St.J. Hardy, Hans Lambers	2013	33
3	Defining the phosphite-regulated transcriptome of the plant pathogen Phytophthora cinnamomi Molecular Genetics and Genomics ·อารีรัตน์ พงษ์โสภิดา, Wayne Reeve, Mark B. Van der Hoek, Nari Williams, J. McComb, P.A. O’Brien, G.E.St.J. Hardy	2010	58
4	Research into natural and induced resistance in Australian native vegetation of Phytophthora cinnamomi and innovative methods to contain and/or eradicate within localised incursions in areas of high biodiversity in Australia. Does the physiological status of the plant at the time of spraying affect the efficacy of phosphite? Murdoch Research Repository (Murdoch University) ·D. Hüberli, B. L. Shearer, Mike Calver, Trudy Paap, 裕明小田, Sarah Barrett, Ramasamy Nakandhrakumar, Kay Howard, Stoltz Jean Francois, W. Dunstan, Barbara J. Bowen, B.D. Lampiden, Brian D. Palmer, Cienna C. Bills, C. E. Crane, Charbel Ajaka, B. Dell, P.A. O’Brien, J.A. McComb, G.E.St.J. Hardy	2008	2
5	Research into natural and induced resistance in Australian native vegetation of Phytophthora cinnamomi and innovative methods to contain and/or eradicate within localised incursions in areas of high biodiversity in Australia. Enhancing the efficacy of phosphite with the addition/supplementation of other chemicals such as those known to be involved in resistance Murdoch Research Repository (Murdoch University) ·J.A. McComb, P.A. O’Brien, Mike Calver, Félix Moreno-Elcure, N. Jardine, Leila Eshraghi, Samuel Erzuah, J. D. Haweins, Peter Scott, J. T. O’Brien, Stoltz Jean Francois, Kay Howard, B. Dell, G.E.St.J. Hardy	2008	1
6	Research into natural and induced resistance in Australian native vegetation of Phytophthora cinnamomi and innovative methods to contain and/or eradicate within localised incursions in areas of high biodiversity in Australia. Eradication of Phytophthora cinnamomi from spot infections in native plant communities in Western Australia and Tasmania. Murdoch Research Repository (Murdoch University) ·W. Dunstan, Nandhini Jayaprakash, B. L. Shearer, 裕明小田, Trudy Paap, Mike Calver, Eirik Ellingsen, Mark P. Dobrowolski, Agamagomedova, Kay Howard, Stoltz Jean Francois, C. E. Crane, B. Dell, P.A. O’Brien, J.A. McComb, G.E.St.J. Hardy	2008	1
7	PCR primers for specific detection ofPhytophthora cinnamomi Australasian Plant Pathology ·P.A. O’Brien	2008	7
8	NITROGEN DYNAMICS IN AN AUSTRALIAN SEMIARID GRASSLAND SOIL Ecology ·W. R. Cookson, Christoph Müller, P.A. O’Brien, Daniel V. Murphy, Pauline F. Grierson	2006	73
9	Theoretical Considerations on Navigating Codespace with Spatial Cognition PPIG ·حميدة عبدالعزيز علي إسليو, Maryanne L. Fisher, P.A. O’Brien	2005	15
10	Morphology of the rust fungus Puccinia boroniae revisited Mycologia ·Arthur Maule Oliver, P.A. O’Brien, G.E.St.J. Hardy	2005	2
11	Myostatinand its implications on animal breeding: a review Animal Genetics ·Dilan ZENGİN, David A. Liberles, Ayshan Seyidova, P.A. O’Brien, Guan K. Tay	2005	143
12	Maceration of plant tissue by fungi is inhibited by recombinant antipectinase antibodies European Journal of Plant Pathology ·Gilberto Correia de Souza, Mohammad Hossein Sanati, Eiichiro Takiyama, P.A. O’Brien	2005	5
13	Are Sebacinaceae common and widespread ectomycorrhizal associates of Eucalyptus species in Australian forests? Mycorrhiza ·Morag Glen, I.C. Tommerup, Neale L. Bougher, P.A. O’Brien	2002	72
14	Microsatellites in the mitochondrial genome ofPhytophthora cinnamomifailed to provide highly polymorphic markers for population genetics FEMS Microbiology Letters ·Mark P. Dobrowolski, I.C. Tommerup, P.A. O’Brien	1998	13
15	Molecular Characterization of Cryptosporidium Isolates from Humans and other Animals Using Random Amplified Polymorphic DNA Analysis American Journal of Tropical Medicine and Hygiene ·Una M. Morgan, Clare C. Constantine, P.J. O'Donoghue, Bruno P. Meloni, P.A. O’Brien, R.C.A. Thompson	1995	105
16	Variations in culture morphology and pathogenicity among protoplast-regenerated strains ofRhizoctonia solani FEMS Microbiology Letters ·Mineyuki Yoshida, Rasmieh Anabtawy, K. Sivasithamparam, P.A. O’Brien	1994	7
17	Stimulation of synthesis and release of swainosonine from transformed roots of Swainsona galegifolia Phytochemistry ·林美莉, Katharina Ortmaier, P.A. O’Brien	1994	26
18	Use of RAPD-PCR to isolate a species specific DNA probe forPhytophthora cinnamomi FEMS Microbiology Letters ·Mark P. Dobrowolski, P.A. O’Brien	1993	25
19	UV‐INDUCED DNA DEGRADATION IN THE CYANOBACTERIUM SYNECHOCYSTIS PCC 6308 Photochemistry and Photobiology ·P.A. O’Brien, J. A. Houghton	1982	17
20	Mutation Induction in the Cyanobacterium Gloeocapsa alpicola Microbiology ·Wilsey JT, Emily C. Williams, P.A. O’Brien, J. A. Houghton	1980	15

About P.A. O’Brien

P.A. O’Brien is a scholar working on Plant Science, Endocrinology, Cell Biology, Parasitology and Environmental Chemistry, having authored 78 papers that have together received 2.0k indexed citations. Recurring topics across this work include Plant Pathogens and Resistance (33 papers), Plant Disease Resistance and Genetics (23 papers), Plant Pathogens and Fungal Diseases (21 papers), Yeasts and Rust Fungi Studies (12 papers), Plant-Microbe Interactions and Immunity (8 papers), Plant and Fungal Interactions Research (7 papers), Legume Nitrogen Fixing Symbiosis (7 papers) and Mycorrhizal Fungi and Plant Interactions (5 papers). The work is most often cited by research in Cell Biology (723 citations), Plant Science (1.4k citations), Endocrinology (132 citations), Parasitology (103 citations) and Soil Science (112 citations). P.A. O’Brien has collaborated with scholars based in Australia, Ireland and United States. Frequent co-authors include G.E.St.J. Hardy, I.C. Tommerup, Mark P. Dobrowolski, J. McComb, Joanne E. Barton, B. L. Shearer, Nari Williams, Neale L. Bougher, Morag Glen and Sean C. Duncan. Their work appears in journals such as Plant Pathology, Forest Pathology, Photochemistry and Photobiology, Journal of Experimental Botany and Mycologia.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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