Dr Nari Williams
Senior Research Fellow: Forest Health Specialist
Centre for Cancer Biology
College of Health
| Date | Position | Institution name |
|---|---|---|
| 2021 - 2025 | Senior Lecturer and Theme Leader for Forest Health | University of Auckland |
| 2020 - 2025 | Team Leader and Senior Scientist, Pathogen Ecology and Management | New Zealand Institute of Plant and Food Research |
| 2018 - 2019 | Research Team Leader, Forest Pathology | New Zealand Forest Research Institute Ltd (Scion) |
| 2014 - 2018 | Senior Forest Pathologist | New Zealand Forest Research Institute Ltd (Scion) |
| 2012 - 2014 | Forest Pathologist | New Zealand Forest Research Institute Ltd (Scion) |
| 2006 - 2011 | Postdoctoral Researcher | Murdoch University |
| Date | Type | Title | Institution Name | Country | Amount |
|---|---|---|---|---|---|
| 2017 | Award | Contribution to a Science Team Award | New Zealand Forest Owners Association | New Zealand | - |
| 2017 | Award | Early Career Researcher (Forestry) | Science New Zealand | New Zealand | - |
| 2017 | Award | Research Team Award (Forestry) | Science New Zealand | New Zealand | - |
| 2014 | Award | Science of International Quality | New Zealand Forest Owners Association | New Zealand | - |
| Date | Institution name | Country | Title |
|---|---|---|---|
| 2002 - 2006 | Murdoch University | Australia | Doctor of Philosophy |
| 2001 - 2001 | University of Adelaide | Australia | Honours (First Class) |
| 1998 - 2000 | University of Adelaide | Australia | Bachelor's |
| Year | Citation |
|---|---|
| 2025 | Brasier, C. M., Grünwald, N. J., Bourret, T. B., Govers, F., Scanu, B., Cooke, D. E. L., . . . Tripathy, S. (2025). Preserving the Biologically Coherent Generic Concept of Phytophthora, “Plant Destroyer”. Phytopathology, 115(6), 573-586. Scopus3 WoS4 Europe PMC2 |
| 2025 | Barwell, L. J., Purse, B. V., Green, S., Hardy, G., Scott, P., Williams, N., . . . Chapman, D. (2025). Trait-mediated filtering of Phytophthora pathogen invasions through global horticultural trade networks. New Phytologist, 248(5), 2480-2497. Scopus2 WoS1 |
| 2025 | Hunter, S., Waipara, N., Burns, B., Scott, P., Arnet, M., & Williams, N. (2025). Foliar phosphite application to manage kauri (Agathis australis) dieback. Australasian Plant Pathology, 54(2), 209-220. |
| 2025 | Hunter, S., Waipara, N., Burns, B., Scott, P., & Williams, N. (2025). Survival and dispersal of Phytophthora multivora zoospores in soil substrates. Australasian Plant Pathology, 54(3), 289-297. Scopus1 WoS1 |
| 2025 | Gómez-Gallego, M., Sellier, D., Dickson, A., Bader, M. K. F., Leuzinger, S., & Williams, N. (2025). Light Limitation and Foliar Pathogenic Infection Impact Phloem Anatomy and Function in Pinus radiata D. Don. Plant Cell and Environment, 48(8), 6356-6372. Scopus2 WoS2 |
| 2025 | Latham, M. C., Lustig, A., Williams, N. M., McDonald, A., Patuawa, T., Chetham, J., . . . Anderson, D. P. (2025). Design of risk-based surveillance to demonstrate absence of Phytophthora agathidicida in New Zealand kauri forests: Design of risk-based surveillance to demonstrate absence of Phytophthora agathidicida: M. Cecilia Latham et al.. Biological Invasions, 27(1), 20 pages. |
| 2024 | Ehau-Taumaunu, H., Williams, N. M., Marsh, A., Waipara, N. W., Higgins, C. M., Geering, A. D. W., . . . MacDiarmid, R. M. (2024). Why a strategic shift in action is needed to recognise and empower Indigenous plant pathology knowledge and research. Australasian Plant Pathology, 53(3), 211-219. Scopus1 |
| 2024 | Godfery, T., Kean, J., Hikuroa, D., Robinson, A., & Williams, N. (2024). Shifting paradigms and creating space for Indigenous leadership in biosecurity management and decision-making. Conservation Biology, 38(6), 11 pages. Scopus3 WoS1 Europe PMC2 |
| 2024 | Hunter, S., Waipara, N., Burns, B., Scott, P., & Williams, N. (2024). Impacts of phosphite treatment on Phytophthora community assemblages and inoculum abundances in Phytophthora-infected forest soil. Trees Forests And People, 18(100687), 1-13. Scopus5 WoS4 |
| 2024 | Hunter, S., Horner, I., Hosking, J., Carroll, E., Newland, J., Arnet, M., . . . Williams, N. (2024). Phytophthora communities associated with Agathis australis (kauri) in Te Wao Nui o Tiriwa/Waitākere Ranges, New Zealand. Forests, 15(5), 1-20. Scopus4 WoS4 |
| 2023 | Hunter, S., McDougal, R., Williams, N., & Scott, P. (2023). Evidence of Phosphite Tolerance in Phytophthora cinnamomi from New Zealand Avocado Orchards. Plant Disease, 107(2), 393-400. Scopus8 WoS8 Europe PMC4 |
| 2023 | Kronmiller, B. A., Feau, N., Shen, D., Tabima, J. F., Ali, S. S., Armitage, A. D., . . . Grünwald, N. J. (2023). Comparative Genomic Analysis of 31 Phytophthora Genomes Reveals Genome Plasticity and Horizontal Gene Transfer. Molecular Plant Microbe Interactions, 36(1), 26-46. Scopus21 WoS21 Europe PMC21 |
| 2022 | Cox, M. P., Guo, Y., Winter, D. J., Sen, D., Cauldron, N. C., Shiller, J., . . . Bradshaw, R. E. (2022). Chromosome-level assembly of the Phytophthora agathidicida genome reveals adaptation in effector gene families. Frontiers in Microbiology, 13, 20 pages. Scopus13 WoS13 |
| 2022 | Hunter, S., McDougal, R., Williams, N., & Scott, P. (2022). Variability in phosphite sensitivity observed within and between seven Phytophthora species. Australasian Plant Pathology, 51(3), 273-279. Scopus9 WoS8 |
| 2021 | D'Souza, K. D., Scott, P., Williams, N., Bellgard, S. E., & Bader, M. K. F. (2021). Early infection by Phytophthora agathidicida up-regulates photosynthetic activity in Agathis australis seedlings. Forest Pathology, 51(2), 1-12. Scopus2 WoS2 |
| 2021 | Tabima, J. F., Gonen, L., Gomez Gallego, M., Panda, P., Grunwald, N. J., Hansen, E. M., . . . Williams, N. M. (2021). Molecular phylogenomics and population structure of phytophthora pluvialis. Phytopathology, 111(1), 108-115. Scopus19 WoS18 Europe PMC8 |
| 2021 | Barwell, L. J., Perez Sierra, A., Henricot, B., Harris, A., Burgess, T. I., Hardy, G., . . . Purse, B. V. (2021). Evolutionary trait-based approaches for predicting future global impacts of plant pathogens in the genus Phytophthora. Journal of Applied Ecology, 58(4), 718-730. Scopus38 WoS32 Europe PMC15 |
| 2020 | Kerio, S., Daniels, H. A., Gomez Gallego, M., Tabima, J. F., Lenz, R. R., Sondreli, K. L., . . . LeBoldus, J. M. (2020). From genomes to forest management - tackling invasive Phytophthora species in the era of genomics. Canadian Journal of Plant Pathology, 42(1), 1-29. Scopus16 WoS16 |
| 2020 | Fraser, S., Gomez Gallego, M., Gardner, J., Bulman, L. S., Denman, S., & Williams, N. M. (2020). Impact of weather variables and season on sporulation of Phytophthora pluvialis and Phytophthora kernoviae. Forest Pathology, 50(2), 1-15. Scopus14 WoS14 |
| 2020 | Bradshaw, R. E., Bellgard, S. E., Black, A., Burns, B. R., Gerth, M. L., McDougal, R. L., . . . Horner, I. J. (2020). Phytophthora agathidicida: research progress, cultural perspectives and knowledge gaps in the control and management of kauri dieback in New Zealand. Plant Pathology, 69(1), 3-16. Scopus87 WoS72 Europe PMC12 |
| 2020 | Guo, Y., Dupont, P. Y., Mesarich, C. H., Yang, B., McDougal, R. L., Panda, P., . . . Bradshaw, R. E. (2020). Functional analysis of RXLR effectors from the New Zealand kauri dieback pathogen Phytophthora agathidicida. Molecular Plant Pathology, 21(9), 1131-1148. Scopus14 WoS12 Europe PMC13 |
| 2020 | Gomez Gallego, M., Williams, N., Leuzinger, S., Scott, P. M., & Bader, M. K. F. (2020). No carbon limitation after lower crown loss in Pinus radiata. Annals of Botany, 125(6), 955-967. Scopus8 WoS8 Europe PMC2 |
| 2019 | Gomez Gallego, M., Gommers, R., Bader, M. K. F., & Williams, N. M. (2019). Modelling the key drivers of an aerial Phytophthora foliar disease epidemic, from the needles to the whole plant. PLoS One, 14(5), 1-23. Scopus10 WoS10 Europe PMC5 |
| 2019 | Gomez Gallego, M., LeBoldus, J. M., Bader, M. K. F., Hansen, E., Donaldson, L., & Williams, N. M. (2019). Contrasting the pathogen loads in co-existing populations of Phytophthora pluvialis and Nothophaeocryptopus gaeumannii in Douglas fir plantations in New Zealand and the Pacific Northwest United States. Phytopathology, 109(11), 1908-1921. Scopus10 WoS10 Europe PMC4 |
| 2019 | Studholme, D. J., Panda, P., Sanfuentes Von Stowasser, E., Gonzalez, M., Hill, R., Sambles, C., . . . McDougal, R. L. (2019). Genome sequencing of oomycete isolates from Chile supports the New Zealand origin of Phytophthora kernoviae and makes available the first Nothophytophthora sp. genome. Molecular Plant Pathology, 20(3), 423-431. Scopus21 WoS19 Europe PMC10 |
| 2019 | Rolando, C., Somchit, C., Bader, M. K. F., Fraser, S., & Williams, N. (2019). Can copper be used to treat foliar Phytophthora infections in Pinus radiata?. Plant Disease, 103(8), 1828-1834. Scopus10 WoS10 Europe PMC2 |
| 2019 | Lewis, K. S. J., Black, A., Condron, L. M., Waipara, N. W., Scott, P., Williams, N., & O'Callaghan, M. (2019). Land-use changes influence the sporulation and survival of Phytophthora agathidicida, a lethal pathogen of New Zealand kauri (Agathis australis). Forest Pathology, 49(2), 1-9. Scopus12 WoS11 Europe PMC4 |
| 2019 | Scott, P., Taylor, P., Gardner, J., Puertolas, A., Panda, P., Addison, S., . . . McDougal, R. (2019). Phytophthora aleatoria sp. nov., associated with root and collar damage on Pinus radiata from nurseries and plantations. Australasian Plant Pathology, 48(4), 313-321. Scopus14 WoS14 |
| 2019 | Scott, P. M., Taylor, P., & Williams, N. (2019). Contrasting the infection and survival of Phytophthora pluvialis and Phytophthora cinnamomi in Pinus radiata roots. Australasian Plant Pathology, 48(2), 193-199. Scopus4 WoS4 |
| 2019 | Della Rocca, G., Danti, R., Williams, N., Eyre, C., & Garbelotto, M. (2019). Molecular analyses indicate that both native and exotic pathogen populations serve as sources of novel outbreaks of Cypress Canker Disease. Biological Invasions, 21(9), 2919-2932. Scopus9 WoS8 Europe PMC4 |
| 2019 | Scott, P., Bader, M. K. F., Burgess, T., Hardy, G., & Williams, N. (2019). Global biogeography and invasion risk of the plant pathogen genus Phytophthora. Environmental Science and Policy, 101, 175-182. Scopus90 WoS79 |
| 2018 | Donaldson, L., & Williams, N. (2018). Imaging and spectroscopy of natural fluorophores in pine needles. Plants, 7(1), 1-16. Scopus76 WoS78 Europe PMC48 |
| 2018 | Brar, S., Tabima, J. F., McDougal, R. L., Dupont, P. Y., Feau, N., Hamelin, R. C., . . . Williams, N. M. (2018). Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America. Plant Pathology, 67(5), 1131-1139. Scopus27 WoS25 Europe PMC5 |
| 2018 | Graham, N. J., Suontama, M., Pleasants, T., Li, Y., Bader, M. K. F., Klapste, J., . . . Williams, N. M. (2018). Assessing the genetic variation of tolerance to red needle cast in a Pinus radiata breeding population. Tree Genetics and Genomes, 14(4), 1-12. Scopus15 WoS15 |
| 2018 | Wake, G., Williams, N., & Pleasants, T. (2018). A dynamical systems model for poly-cyclic foliar forest pathogens. ANZIAM Journal, 59, 1-14. |
| 2018 | Herewini, E. M., Scott, P. M., Williams, N. M., & Bradshaw, R. E. (2018). In vitro assays of Phytophthora agathidicida on kauri leaves suggest variability in pathogen virulence and host response. New Zealand Plant Protection, 71, 285-288. Scopus8 |
| 2018 | Hunter, S., Williams, N., McDougal, R., Scott, P., & Garbelotto, M. (2018). Evidence for rapid adaptive evolution of tolerance to chemical treatments in Phytophthora species and its practical implications. PLoS One, 13(12), 1-15. Scopus25 WoS23 Europe PMC13 |
| 2018 | Hunter, S., McDougal, R., Clearwater, M. J., Williams, N., & Scott, P. (2018). Development of a high throughput optical density assay to determine fungicide sensitivity of oomycetes. Journal of Microbiological Methods, 154, 33-39. Scopus6 WoS7 Europe PMC3 |
| 2017 | Dickie, I. A., Bufford, J. L., Cobb, R. C., Desprez Loustau, M. L., Grelet, G., Hulme, P. E., . . . Williams, N. M. (2017). The emerging science of linked plant-fungal invasions. New Phytologist, 215(4), 1314-1332. Scopus176 WoS170 Europe PMC88 |
| 2017 | Rolando, C. A., Dick, M. A., Gardner, J., Bader, M. K. F., & Williams, N. M. (2017). Chemical control of two Phytophthora species infecting the canopy of Monterey pine (Pinus radiata). Forest Pathology, 47(3), 1-10. Scopus21 WoS16 |
| 2017 | Gomez Gallego, M., Bader, M. K. F., Scott, P. M., Leuzinger, S., & Williams, N. M. (2017). Phytophthora pluvialis studies on Douglas-fir require Swiss needle cast suppression. Plant Disease, 101(7), 1259-1262. Scopus8 WoS7 Europe PMC5 |
| 2016 | Studholme, D. J., McDougal, R. L., Sambles, C., Hansen, E., Hardy, G., Grant, M., . . . Williams, N. M. (2016). Genome sequences of six Phytophthora species associated with forests in New Zealand. Genomics Data, 7, 54-56. Scopus53 WoS51 Europe PMC42 |
| 2016 | Scott, P., Bader, M. K. F., & Williams, N. M. (2016). Foliar phosphite application has minor phytotoxic impacts across a diverse range of conifers and woody angiosperms. Physiologia Plantarum, 158(2), 124-134. Scopus20 WoS17 Europe PMC9 |
| 2015 | Hansen, E. M., Reeser, P., Sutton, W., Gardner, J., & Williams, N. (2015). First report of Phytophthora pluvialis causing needle loss and shoot dieback on Douglas-fir in Oregon and New Zealand. Plant Disease, 99(5), 727. Scopus20 WoS20 |
| 2014 | Rolando, C., Gaskin, R., Horgan, D., Williams, N., & Bader, M. K. F. (2014). The use of adjuvants to improve uptake of phosphorous acid applied to Pinus radiata needles for control of foliar Phytophthora diseases. New Zealand Journal of Forestry Science, 44(1). Scopus16 WoS15 |
| 2014 | Dick, M. A., Williams, N. M., Karl-Friedrich, M. B., Gardner, J. F., & Bulman, L. S. (2014). Pathogenicity of Phytophthora pluvialis to Pinus radiata and its relation with red needle cast disease in New Zealand. New Zealand Journal of Forestry Science, 44(1). Scopus67 WoS61 |
| 2014 | Dungey, H. S., Williams, N. M., Low, C. B., & Stovold, G. T. (2014). First evidence of genetic-based tolerance to red needle cast caused by Phytophthora pluvialis in radiata pine. New Zealand Journal of Forestry Science, 44(1). Scopus14 WoS14 |
| 2014 | Li, A. Y., Williams, N., Fenwick, S. G., Hardy, G. E. S. J., & Adams, P. J. (2014). Potential for dissemination of Phytophthora cinnamomi by feral pigs via ingestion of infected plant material. Biological Invasions, 16(4), 765-774. Scopus18 WoS16 Europe PMC5 |
| 2014 | Li, A. Y., Crone, M., Adams, P. J., Fenwick, S. G., Hardy, G. E. S. J., & Williams, N. (2014). The Microscopic Examination of Phytophthora cinnamomi in Plant Tissues Using Fluorescent In Situ Hybridization. Journal of Phytopathology, 162(11-12), 747-757. Scopus4 WoS6 Europe PMC1 |
| 2014 | Ganley, R. J., Williams, N. M., Rolando, C. A., Hood, I. A., Dungey, H. S., Beets, P. N., & Bulman, L. S. (2014). Management of red needle cast, caused by Phytophthora pluvialis, a new disease of radiata pine in New Zealand. New Zealand Plant Protection, 67, 48-53. Scopus15 |
| 2014 | Hood, I. A., Williams, N. M., Dick, M. A., Arhipova, N., Kimberley, M. O., Scott, P. M., & Gardner, J. F. (2014). Decline in vitality of propagules of Phytophthora pluvialis and Phytophthora kernoviae and their inability to contaminate or colonise bark and sapwood in Pinus radiata export log simulation studies. New Zealand Journal of Forestry Science, 44(1). Scopus7 WoS4 |
| 2013 | Hüberli, D., Hardy, G. E. S. J., White, D., Williams, N., & Burgess, T. I. (2013). Fishing for Phytophthora from Western Australia's waterways: A distribution and diversity survey. Australasian Plant Pathology, 42(3), 251-260. Scopus86 WoS83 |
| 2010 | Cai, Y. F., Barber, P., Dell, B., O'Brien, P., Williams, N., Bowen, B., & Hardy, G. (2010). Soil bacterial functional diversity is associated with the decline of Eucalyptus gomphocephala. Forest Ecology and Management, 260(6), 1047-1057. Scopus41 WoS39 Europe PMC8 |
| 2010 | King, M., Reeve, W., Van Der Hoek, M. B., Williams, N., McComb, J., O'Brien, P. A., & Hardy, G. E. S. J. (2010). Defining the phosphite-regulated transcriptome of the plant pathogen Phytophthora cinnamomi. Molecular Genetics and Genomics, 284(6), 425-435. Scopus58 WoS55 Europe PMC30 |
| 2009 | Facelli, E., Taylor, C., Williams, N., Emmett, R., Sedgley, M., Joyce, C., & Scott, E. (2009). Location of Xanthomonas translucens in pistachio trees. Australasian Plant Pathology, 38(6), 584-593. Scopus7 WoS6 |
| 2009 | O'Brien, P. A., Williams, N., & Stj Hardy, G. E. (2009). Detecting phytophthora. Critical Reviews in Microbiology, 35(3), 169-181. Scopus74 WoS72 Europe PMC41 |
| 2009 | Williams, N., Hardy, G. E. S. J., & O'Brien, P. A. (2009). Analysis of the distribution of Phytophthora cinnamomi in soil at a disease site in Western Australia using nested PCR. Forest Pathology, 39(2), 95-109. Scopus26 WoS24 Europe PMC11 |
| 2006 | ANDERSON, N., SZEMES, M., O'BRIEN, P., DE WEERDT, M., SCHOEN, C., BOENDER, P., & BONANTS, P. (2006). Use of hybridization melting kinetics for detecting Phytophthora species using three-dimensional microarrays: demonstration of a novel concept for the differentiation of detection targets. Mycological Research, 110(6), 664-671. Scopus9 Europe PMC5 |
| Year | Citation |
|---|---|
| 2025 | Sellier, D., Mammeri, Y., Peynaud, E., Gomez-Gallego, M., Leuzinger, S., Dumont, Y., . . . Williams, N. (2025). A numerical model of coupled phloem-xylem flows for dynamic long-distance transport in trees. In Acta Horticulturae Vol. 1 (pp. 113-122). International Society for Horticultural Science (ISHS). DOI |
| 2025 | Kabir, S., Walter, M., Pushparajah, S., Panda, P., Stephens, T., Gee, M., . . . Bulman, S. (2025). Phytophthora biodiversity in New Zealand kiwifruit. In Acta Horticulturae Vol. 1 (pp. 347-352). International Society for Horticultural Science (ISHS). DOI |
| 2019 | Panda, P., Sturrock, S., McDougal, R. L., Scott, P. M., Lewis, K., Black, A., . . . Williams, N. M. (2019). Characterizing the growth and gene expression profile of Phytophthora agathidicida in (the soils of) alternate land managements. In MOLECULAR PLANT-MICROBE INTERACTIONS Vol. 32 (pp. 186). SCOTLAND, Glasgow: AMER PHYTOPATHOLOGICAL SOC. |
| Date | Role | Committee | Institution | Country |
|---|---|---|---|---|
| 2024 - 2024 | Chair | Organising committee 11th meeting of the IUFRO Working Party S07.02.09, Phytophthora in Forests and Natural Ecosystems | International Union of Forest Research Organisations | New Zealand |
| 2021 - ongoing | Chair | IUFRO Working Party S07.02.09, Phytophthora in Forests and Natural Ecosystems | International Union of Forest Research Organisations | Austria |
| 2019 - 2021 | Secretary | Australasian Plant Pathology | Australasian Plant Pathology | Australia |
| Date | Role | Membership | Country |
|---|---|---|---|
| 2012 - ongoing | Member | Australasian Plant Pathology | - |
| 2012 - ongoing | Member | New Zealand Plant Protection Society | - |
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