Dr Nam Pham



Postdoctoral Fellow

Department

FABI
Full CV
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POSTDOCTORAL PROJECT


The project focuses on emerging tree diseases, which have expanded their host and geographic range, increased in severity, or are newly discovered. Such diseases have been reported in both natural woody ecosystems and planted forests, reshaping forests globally.

The scientific community recognizes emerging diseases as a significant aspect of global change, posing a primary threat to forest ecosystems. Factors contributing to the emergence include the unintentional movement of species, climate change, and changes in land use and forest management.

Commercial plantation forestry in tropical and Southern Hemisphere regions is extremely vulnerable to emerging diseases, jeopardizing the sustainability of these forests. There is thus an urgent need for research, including the use of genetic and genomic tools, to understand the biology, ecology, and evolution of tree pathogens, providing insights for developing effective disease management strategies.

 

 


PH.D. PROJECT


In 2018, I started my Ph.D. in Plant Pathology as a member of RGE-FABI Tree Health Programme (RGE-FABI THP) and Tree Protection Co-operative Programme (TPCP).

For my Ph.D., I investigated a serious disease recently named as Eucalyptus scab and shoot malformation. The disease was first observed in North Sumatra, Indonesia in 2014. However, the causal agent was discovered only recently as a novel species of Elsinoe. The name of the pathogen is derived from the Latin word “necatrix” (killer, murderess) to refer to the destructive impact that the disease has on its Eucalyptus hosts.

The disease is characterized by black necrotic spots that initially appear on young leaves and petioles, which become scab‐like as the lesions age. Infected trees respond to infection by producing shoots with small leaves that commonly appear feathered. Severely affected clones usually die after a number of successive infection cycles, generally over a period of 2–3 years.

The origin of Elsinoe necatrix is unknown, but evidence suggests that this is likely an area where Eucalyptus species are native. The pathogen would then have been accidentally introduced into North Sumatra where it has encountered susceptible host trees and an environment conducive to infection. In this regard, it should be considered as a high-risk pathogen and efforts should be made to prevent its spread to new environments.

>More information: http://dx.doi.org/10.1111/ppa.13348

 

 


M.SC. PROJECT


I first joined FABI family in 2016 as a Master student under the supervision of Prof. Michael J. WingfieldProf. Irene Barnes and Prof. ShuaiFei Chen. In 2018, I completed my MSc. in Plant Pathology (Cum Laude) with the dissertation entitled "New species of Calonectria and Cylindrocladiella from Vietnam, Indonesia and Malaysia".

2018: van den Berg M

2020: Mokhara B

2023: Kapsosideris N


Academic Honorary Colours for Master of Science (University of Pretoria) 2018

Best Dressed Male - SPOOF 2020

Best Dressed Male - SPOOF 2021

FABI Creative Art Submission award 2021

FABIan of the year 2021

Best Dressed Male - SPOOF 2023


25. Pham NQ, Duong TA, Suzuki H, Wingfield BD, Marincowitz S, Solís M, Barnes I, Muro Abad JI, Durán A, Wingfield MJ (2024) Lessons learnt from the Eucalyptus scab and shoot malformation epidemic in Indonesia. 53rd Congress of the Southern African Society for Plant Pathology (SASPP), Golden Gate National Park, Clarens, South Africa.

24. Pham NQ, Wingfield MJ, Duong TA, Chen SF, Liu FF (2024) Population genetic analysis of Calonectria reteaudii from infected Eucalyptus leaves and associated soils suggests a phyllosphere and not a soil-borne origin. 53rd Congress of the Southern African Society for Plant Pathology (SASPP), Golden Gate National Park, Clarens, South Africa.

23. Pham NQ, Marincowitz S, Rodas CA, Wingfield MJ (2024) Identification of Cylindrocladiella species from Colombia soils reveals unexpectedly high diversity and highlights knowledge gaps. 53rd Congress of the Southern African Society for Plant Pathology (SASPP), Golden Gate National Park, Clarens, South Africa.

22. Barnes I, Aylward J, Solís M, Pham NQ, Wingfield MJ (2023) Important Eucalyptus diseases on forest plantations in South Africa. IUFRO WP 7.02.13 and 7.02.03 meeting, Campo Grande, Mato Grosso do Sul, Brazil.

21. Wingfield MJ, Pham NQ, Marincowitz S, Duong TA, Wingfield BD, Wilson A (2023) Blast from the past: A study of decades-old fungal cultures resolves a long-standing tree disease mystery. 12th International Congress of Plant Pathology (ICPP), Lyon, France.

20. Pham NQ, Suzuki H, Duong TA, Barnes I, Wingfield BD, Duran A, Wingfield MJ (2023) Genetic diversity of the emerging Eucalyptus pathogen Elsinoe necatrix12th International Congress of Plant Pathology (ICPP), Lyon, France.

19. Pham NQ (2023) Eucalyptus scab in Indonesia - lessons learnt34th Annual meeting of the Tree Protection Co-operative Programme (TPCP) and the DSI NRF Centre of Excellence in Plant Health Biotechnology (CPHB), University of Pretoria, Pretoria, South Africa.

18. Pham NQ, Barnes I, Muro Abad JI, Durán A, Wingfield MJ (2022) Eucalyptus scab and shoot malformation: An unexpected new threat to plantation forestry globally. IUFRO Conference Division 7 – Forest Health Pathology and Entomology, Lisbon, Portugal.

17. van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Duong TA, Wilken PM (2022) A LAMP assay for in-field detection of Elsinoë necatrix, the causal agent of Eucalyptus scab and shoot malformation. IUFRO Conference Division 7 – Forest Health Pathology and Entomology, Lisbon, Portugal.

16. Pham NQ, Marincowitz S, Chen SF, Rodas CA, Wingfield MJ (2022) Soil-borne Calonectria species associated with commercial Eucalyptus plantation in Colombia. IUFRO Conference Division 7 – Forest Health Pathology and Entomology, Lisbon, Portugal.

15. Ramírez N, Wingfield MJ, Pham NQ, Loitey JM, Pérez M, Pérez CA (2022) Novel Calonectria species associated with a serious leaf disease on native Ilex paraguariensis in Uruguay. IUFRO Conference Division 7 – Forest Health Pathology and Entomology, Lisbon, Portugal.

14. Roux J, Pham NQ, Phungula S, Wingfield MJ (2022) First report of Elsinoë scab and shoot malformation disease on Eucalyptus in South Africa. IUFRO Conference Division 7 – Forest Health Pathology and Entomology, Lisbon, Portugal.

13. Pham NQ, Barnes I, Muro Abad JI, Durán A, Wingfield MJ (2022) Eucalyptus scab and shoot malformation: A threat to commercial forestry52nd Congress of the Southern African Society for Plant Pathology (SASPP), Pretoria, South Africa.

12. Pham NQ, Marincowitz S, Chen SF, Rodas CA, Wingfield MJ (2022) Calonectria species associated with Eucalyptus plantation soils in Colombia52nd Congress of the Southern African Society for Plant Pathology (SASPP), Pretoria, South Africa.

11. Fell S, Paap T, Carstensen GD, Pham NQ, Hurley BP, Wingfield MJ (2022) Previously unknown gall symptoms associated with Uromycladium acaciae infection on Acacia mearnsii52nd Congress of the Southern African Society for Plant Pathology (SASPP), Pretoria, South Africa.

10. Solís M, Wingfield MJ, Greyling I, Pham NQ (2022) Colletotrichum theobromicola causes a shoot and leaf disease on Eucalyptus in South Africa52nd Congress of the Southern African Society for Plant Pathology (SASPP), Pretoria, South Africa.

9. van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Duong TA, Wilken PM (2022) Development of a LAMP assay for in-field diagnosis of the novel Eucalyptus pathogen, Elsinoë necatrix using the elsinochrome toxin cluster as a marker. 52nd Congress of the Southern African Society for Plant Pathology (SASPP), Pretoria, South Africa.

8. Pham NQ (2022) Elsinoe necatrix: An unexpected new threat to Eucalyptus around the world. 33rd Annual meeting of the Tree Protection Co-operative Programme (TPCP) and the DSI NRF Centre of Excellence in Plant Health Biotechnology (CPHB), University of Pretoria, Pretoria, South Africa.

7. Pham NQ, Duong TA, Wingfield MJ, Barnes I, Duran A, Wingfield BD (2022) Characterisation of the mating type loci in Elsinoe including the Eucalyptus pathogen Elsinoe necatrix. Fungal Genetic Conference 2022, Pacific Grove, CA, USA.

6. Pham NQ, Barnes I, Muro Abad JI, Duran A, Wingfield MJ (2021) Eucalyptus Scab and Shoot Malformation: An emerging threat to plantation forestry in Southeast Asia. 3rd IUFRO Acacia 2021 Webinar.

5. Pham NQ, Barnes I, Slippers B, Duran A, Wingfield MJ (2020) Yeast communities associated with a Eucalyptus leaf and shoot disease of unknown aetiology in North Sumatra. MSA 2020: Mycology from the Cloud.

4. Pham NQ, Marincowitz S, Barnes I, Wingfield MJ (2019) Novel soil-borne Calonectria species from Eucalyptus plantations in Sabah, Malaysia51st Congress of the Southern African Society for Plant Pathology (SASPP), Langebaan, South Africa.

3. Fourie G, Mufamadi ZC, Smith A, Sonnekus B, Pham NQ, Willis-Boyum A, van den Berg N (2019) Characterisation of the causal agents of Macadamia husk rot in South Africa.51st Congress of the Southern African Society for Plant Pathology (SASPP), Langebaan, South Africa.

2. Pham NQ, Barnes I, Chen SF, Roux J, Pham TQ, Wingfield MJ (2017) Novel Calonectria species from plantation and nursery soils in South-East Asia. IUFRO 125th Anniversary Congress, Freiburg, Germany. 

1. Dang QN, Pham NQ, Nguyen HM, Pham TQ (2017) First report of Phytophthora cinnamomi on Cinnamomum cassia in Vietnam. 8th Meeting IUFRO Working Party 7.02.09 - Phytophthora in Forests and Natural Ecosystems, Sapa, Vietnam.


My Galeries

FABI artwork

Creative Art Submission 2021

Creative Art Submission 2022

News

Another FABI PhD completed! Congratulations to Nam Pham!

Congratulations to Nam Pham who successfully completed the requirements for a PhD degree on 10 January.

A symphony of science at SPOOF

It was a Symphony of Science as FABI harmonized the world of music and outrageous discoveries at this year’s Society for the Presentation of Outrageous Findings.

FABI hosts NSF-sponsored “research experience for students” symposium

After two years of delay, FABI welcomed a large group of USA graduate students and academics to participate in a USA NSF-funded symposium, focused on fungal biological invasions.

YEF 2021

FABI ended the year on a high with a hybrid Year End Function on 19 November.

FABI researchers make an early start to present at the 3rd IUFRO Acacia webinar

FABI researchers make an early start to present at the 3rd IUFRO Acacia webinar.

The FABIlous FABwarts School of Sci-craft and Wizardry

The meeting of the Epsilon Chapter of the Society for the Presentation of Outrageous Findings (SPOOF) hosted by FABI saw witches, wizards, elves, pixies, muggles, mudbloods and all other manner of magical folk and creatures join in the evening’s fun at the FABwarts School of Sci-craft and Wizardry.

RGE-FABI THP symposium links three continents

The RGE-FABI Tree Health Programme (THP) hosted its annual symposium on 3 December.

RGE-FABI THP team meet - another Zoom event

The RGE-FABI Tree Health Programme team met on the Zoom virtual platform on 18 August.

FABIans uphold SPOOF tradition with an historic virtual meeting

For the first time in its 23-year history, FABI hosted a virtual Society for the Presentation of Outrageous Findings (SPOOF) event on 17 July. FABIans submitted nine pre-recorded videos, which in the spirit of the time, reflected the lighter moments of a nation under lockdown. The Gene Jockeys took the prize for the Best Abstract (with the subliminal message “Vote for us. FABI Director Prof.

CTHB welcomes 20 students into its Mentorship Programme

Twenty undergraduate students will gain hands-on scientific research experience as mentees in the CTHB Mentorship Programme.

FABI shines at SASPP meeting

The 2019 meeting of the Southern African Society for Plant Pathology (SASPP) took place on the West Coast, hosted by Stellenbosch University.

First publications celebrated

The Tree Protection Co-operative Programme (TPCP) celebrated the first publication of a paper in an ISI-rated scientific journal by a postgraduate student from the work of either their PhD or MSc at a party on 26 November.

RGE-FABI THP team returns

On Saturday 10 November, Dr Fahimeh Jami (Postdoctoral Fellow), Kira Lynn (M.Sc. student) and Nam Pham (Ph.D. student), returned to South Africa after spending almost two months in Sumatra.

The CTHB celebrates flagship mentoring and outreach programmes at its annual lunch

The DST-NRF Centre of Excellence in Tree Health Biotechnology (CTHB) celebrated the end of another successful year of mentoring and outreach at its annual lunch on 29 October.

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Publication
Tarigan M, Wingfield MJ, Jami F, Marpaung YMAN, Duran A, Pham NQ. (2024) Pathogenicity of Chrysoporthe deuterocubensis on eucalypts in Indonesia. Southern Forests: a Journal of Forest Science 10.2989/20702620.2023.2279054
Pham NQ, Suzuki H, Duong TA, Wingfield BD, Barnes I, Duran A, Wingfield MJ. (2024) Cryptic sexual reproduction in an emerging Eucalyptus shoot and foliar pathogen. Plant Pathology 10.1111/ppa.13876
Wingfield MJ, Marincowitz S, Barnes I, Tarigan M, Solís M, Duran A, Pham NQ. (2023) First report of phyllode rust on Acacia crassicarpa outside its native range. Forest Pathology 10.1111/efp.12839
Pham NQ, Duong TA, Wingfield BD, Barnes I, Duran A, Wingfield MJ. (2023) Characterisation of the mating-type loci in species of Elsinoe causing scab diseases. Fungal Biology 127:1484–1490. 10.1016/j.funbio.2023.11.003
Wingfield MJ, Pham NQ, Marincowitz S, Duong TA, Wingfield BD, Wilson AM. (2023) Blast from the past: a study of decades-old fungal cultures resolves a long-standing tree disease mystery. Journal of Plant Pathology 10.1007/s42161-023-01502-1
Tarigan M, Wingfield MJ, Marpaung YMAN, Duran A, Pham NQ. (2023) Quambalaria eucalypti found on Eucalyptus in Indonesia. Forest Pathology :e12829. 10.1111/efp.12829 PDF
Pham NQ, Wingfield MJ, Marincowitz S, Tanga AA, Tiki KR, Kassie WB, Hurley BP, Germishuizen I, Lawson SA, Healey MA, Wondafrash M. (2023) First report of the wattle rust pathogen, Uromycladium acaciae (Raveneliaceae, Pucciniales) in Ethiopia. Forestry: An International Journal of Forest Research :1–8. 10.1093/forestry/cpad040
Paap T, Marincowitz S, Pham NQ, Roets F, Basson RJ, Wingfield BD, Oberlander K, Wingfield MJ. (2023) A novel species of Microsphaeropsis causing cankers on Rafnia amplexicaulis in South Africa. Fungal Systematics and Evolution 12:73-80. 10.3114/fuse.2023.12.05 PDF
Marincowitz S, Pham NQ, Wingfield BD, Roets F, Wingfield MJ. (2023) Microfungi associated with dying Euphorbia mauritanica in South Africa and their relative pathogenicity. Fungal Systematics and Evolution 12:59-71. 10.3114/fuse.2023.12.04 PDF
Roux J, Wingfield MJ, Marincowitz S, Solís M, Phungula S, Pham NQ. (2023) Eucalyptus scab and shoot malformation: a new disease in South Africa caused by a novel species, Elsinoe masingae. Forestry: An International Journal of Forest Research 10.1093/forestry/cpad031
Tarigan M, Pham NQ, Jami F, Oliveira LSS, Saha MA, Duran A, Wingfield MJ. (2023) Calonectria species diversity on eucalypts in Indonesia. Southern Forests: a Journal of Forest Science 10.2989/20702620.2023.2179441
Pham NQ, Marincowitz S, Chen SF, Rodas CA, Wingfield MJ. (2022) Soil-borne Calonectria (Hypocreales, Nectriaceae) associated with Eucalyptus plantations in Colombia. MycoKeys 94:17-35. 10.3897/mycokeys.94.96301
Wingfield BD, Berger DK, Coetzee MPA, Duong TA, Martin A, Pham NQ, Van den Berg N, Wilken PM, Arun-Chinnappa KS, Barnes I, Buthelezi S, Dahanayaka BA, Durán A, Engelbrecht J, Feurtey A, Fourie A, Fourie G, Hartley J, Kabwe ENK, Maphosa M, Narh Mensah DL, Nsibo DL, Potgieter L, Poudel B, Stukenbrock EH, Thomas C, Vaghefi N, Welgemoed T, Wingfield MJ. (2022) IMA genome‑F17 Draft genome sequences of an Armillaria species from Zimbabwe, Ceratocystis colombiana, Elsinoë necatrix, Rosellinia necatrix, two genomes of Sclerotinia minor, short‑read genome assemblies and annotations of four Pyrenophora teres isolates from barley grass, and a long-read genome assembly of Cercospora zeina. 13:19. 10.1186/s43008-022-00104-3
Wingfield MJ, Marincowitz S, Pham NQ, Roets F, Paap T, Wingfield BD, Aylward J. (2022) Cypress Canker: An important disease discovered for the first time on a native South African tree. Plant Pathology 71:1735-1742. 10.1111/ppa.13614
Solís M, Wingfield MJ, Greyling I, Pham NQ. (2022) A serious shoot and leaf disease caused by Colletotrichum theobromicola discovered on eucalypts in South Africa. Southern Forests: a Journal of Forest Science 84(1):01–13. 10.2989/20702620.2021.2005454 PDF
Pham NQ, Marincowitz S, Chen SF, Yaparudin J, Wingfield MJ. (2022) Calonectria species, including four novel taxa, associated with Eucalyptus in Malaysia. Mycological Progress 21:181-197. 10.1007/s11557-021-01768-8 PDF
Pham NQ, Marincowitz S, Solís M, Duong TA, Wingfield BD, Barnes I, Slippers B, Muro Abad JI, Durán A, Wingfield MJ. (2021) Eucalyptus scab and shoot malformation: A new and serious foliar disease of Eucalyptus caused by Elsinoe necatrix sp. nov.. Plant Pathology 70:1230-1242. 10.1111/ppa.13348 PDF
Burgess TI, Dang QN, Le BV, Pham NQ, White D, Pham TQ. (2020) Phytophthora acaciivora sp. nov. associated with dying Acacia mangium in Vietnam. Fungal Systematics and Evolution 6:243-252. 10.3114/fuse.2020.06.11 PDF
Pham NQ, Barnes I, Chen SF, Liu FF, Dang NQ, Pham TQ, Lombard L, Crous PW, Wingfield MJ. (2019) Ten new species of Calonectria from Indonesia and Vietnam. Mycologia 111:78-102. 10.1080/00275514.2018.1522179 PDF
Pham NQ, Barnes I, Chen SF, Pham TQ, Lombard L, Crous PW, Wingfield MJ. (2018) New species of Cylindrocladiella from plantation soils in South-East Asia. MycoKeys 32:1-24. 10.3897/mycokeys.32.23754 PDF