Iona E.W. O'Brien

794 total citations
14 papers, 591 citations indexed

About

Iona E.W. O'Brien is a scholar working on Plant Science, Molecular Biology and Cell Biology. According to data from OpenAlex, Iona E.W. O'Brien has authored 14 papers receiving a total of 591 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Plant Science, 9 papers in Molecular Biology and 3 papers in Cell Biology. Recurrent topics in Iona E.W. O'Brien's work include Plant tissue culture and regeneration (6 papers), Cell death mechanisms and regulation (3 papers) and Plant-Microbe Interactions and Immunity (3 papers). Iona E.W. O'Brien is often cited by papers focused on Plant tissue culture and regeneration (6 papers), Cell death mechanisms and regulation (3 papers) and Plant-Microbe Interactions and Immunity (3 papers). Iona E.W. O'Brien collaborates with scholars based in New Zealand, Netherlands and India. Iona E.W. O'Brien's co-authors include Chris Reutelingsperger, Karen M. Holdaway, Brian G. Murray, Ian B. Ferguson, Bruce C. Baguley, Bret A.M. Morris, Dale Smith, Richard C. Gardner, B. G. Murray and R. L. S. Forster and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Plant Journal and Experimental Cell Research.

In The Last Decade

Iona E.W. O'Brien

14 papers receiving 548 citations

Peers

Iona E.W. O'Brien
K. Tanaka Japan
Iona E.W. O'Brien
Citations per year, relative to Iona E.W. O'Brien Iona E.W. O'Brien (= 1×) peers K. Tanaka

Countries citing papers authored by Iona E.W. O'Brien

Since Specialization
Citations

This map shows the geographic impact of Iona E.W. 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 Iona E.W. 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 Iona E.W. O'Brien more than expected).

Fields of papers citing papers by Iona E.W. O'Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Iona E.W. 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 Iona E.W. O'Brien. The network helps show where Iona E.W. O'Brien may publish in the future.

Co-authorship network of co-authors of Iona E.W. O'Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Iona E.W. O'Brien. A scholar is included among the top collaborators of Iona E.W. O'Brien based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Iona E.W. O'Brien. Iona E.W. O'Brien is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

14 of 14 papers shown
1.
O'Brien, Iona E.W., Brian G. Murray, Bruce C. Baguley, Bret A.M. Morris, & Ian B. Ferguson. (1998). Major Changes in Chromatin Condensation Suggest the Presence of an Apoptotic Pathway in Plant Cells. Experimental Cell Research. 241(1). 46–54. 36 indexed citations
2.
O'Brien, Iona E.W., Bruce C. Baguley, Brian G. Murray, Bret A.M. Morris, & Ian B. Ferguson. (1998). Early stages of the apoptotic pathway in plant cells are reversible. The Plant Journal. 13(6). 803–814. 93 indexed citations
3.
Murray, B. G., et al.. (1997). Intra- and interspecific variation in genome size in Lathyrus (Leguminosae). Botanical Journal of the Linnean Society. 125(4). 359–366. 15 indexed citations
4.
O'Brien, Iona E.W., Chris Reutelingsperger, & Karen M. Holdaway. (1997). Annexin-V and TUNEL use in monitoring the progression of apoptosis in plants.. PubMed. 29(1). 28–33. 103 indexed citations
5.
O'Brien, Iona E.W., Chris Reutelingsperger, & Karen M. Holdaway. (1997). Annexin-V and TUNEL use in monitoring the progression of apoptosis in plants. Cytometry. 29(1). 28–33. 93 indexed citations
6.
O'Brien, Iona E.W., et al.. (1997). PLOIDY IN ACTINIDIA. Acta Horticulturae. 67–72. 16 indexed citations
7.
O'Brien, Iona E.W., et al.. (1997). Karyotypes, chromosome bands and genome size variation in New Zealand endemic gymnosperms. Plant Systematics and Evolution. 208(3-4). 169–185. 25 indexed citations
8.
O'Brien, Iona E.W., Dale Smith, Richard C. Gardner, & Brian G. Murray. (1996). Flow cytometric determination of genome size in Pinus. Plant Science. 115(1). 91–99. 65 indexed citations
9.
O'Brien, Iona E.W., et al.. (1996). Xyloglucan endotransglycosylase activity during fruit development and ripening of apple and kiwifruit. Physiologia Plantarum. 96(1). 43–50. 40 indexed citations
10.
O'Brien, Iona E.W., et al.. (1996). Xyloglucan endotransglycosylase activity during fruit development and ripening of apple and kiwifruit. Physiologia Plantarum. 96(1). 43–50. 4 indexed citations
11.
Beck, David L., Craig J. van Dolleweerd, Tony J. Lough, et al.. (1994). Disruption of virus movement confers broad-spectrum resistance against systemic infection by plant viruses with a triple gene block.. Proceedings of the National Academy of Sciences. 91(22). 10310–10314. 62 indexed citations
12.
Hopping, M. E., et al.. (1994). Detection of protoplast-derived DNA tetraploid Lisianthus (Eustoma grandiflorum) plants by leaf and flower characteristics and by flow cytometry. Plant Cell Tissue and Organ Culture (PCTOC). 38(1). 53–55. 20 indexed citations
13.
O'Brien, Iona E.W.. (1993). Comparison of malus infection by the pathogen erwinia amylovora and colonisation by the saprophyte erwinia herbicola by electron microscopy. New Zealand Journal of Crop and Horticultural Science. 21(1). 33–38. 3 indexed citations
14.
O'Brien, Iona E.W., et al.. (1993). Protoplasts to plants of Gentianaceae. Regeneration of lisianthus (Eustoma grandiflorum) is affected by calcium ion preconditioning, osmolality and pH of the culture media. Plant Cell Tissue and Organ Culture (PCTOC). 33(1). 31–37. 16 indexed citations

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026