A matter of where and when—the appearance of Late Blight of potato in Australia
Malcolm J. Ryley![https://orcid.org/0000-0003-3699-1240](/media/client/orcid_16x16.png)
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Abstract
Late Blight, also called Irish blight and brown rot, devastated potato crops in Ireland and countries in Europe in the 1840s, and led to famines, deaths, and the emigration of tens of thousands of poor farmworkers. The outbreaks were blamed on many factors, but finally it was demonstrated that the causal agent was an oomycete (water mould) Phytophthora infestans. The Queensland Government Entomologist and Vegetable Pathologist, Henry Tryon, claimed that he made the first discovery of Late Blight in Australia, on leaves and tubers of potato collected in May 1909 around Brisbane. Within three months, the disease was found in all Australian states. Tryon believed that the Queensland outbreak was caused by Phytophthora-infected planting tubers obtained from Tasmania, which growers and the government in that state initially refused to acknowledge. The Victorian Vegetable Pathologist, Daniel McAlpine, initially agreed with the Tasmanians, but later admitted that he had identified Ph. infestans in Tasmanian potato crops. A herbarium specimen of potato leaves collected in 1900 in Victoria, examined over a century later, was found to be infected with Phytophthora infestans. All the ruckus that ensued after Tryon’s discovery was unnecessary; it was really a matter of where and when.
Keywords: Daniel McAlpine, Henry Tryon, Irish blight, Late Blight, murrain, Phytophthora infestans, plant pathology, potato.
References
Anonymous (2023a) Botrytis infestans, Index Fungorum, https://indexfungorum.org/Names/NamesRecord.asp?RecordID=226630, viewed September 2022.
Anonymous (2023b) Peronospora infestans, Index Fungorum, https://indexfungorum.org/Names/NamesRecord.asp?RecordID=191039, viewed September 2022.
Berkeley, M. J. (1846) Observations, physical and physiological, on the potato murrain, Journal of the Royal Horticultural Society, 1, 9-34.
| Google Scholar |
Braa, D. M. (1997) The great potato famine and the transformation of Irish peasant society, Science & Society, 61(2), 193-215.
| Google Scholar |
Burgess, T. I., Edwards, J., Drenth, A., Massenbauer, T., Cunnington, J., Mostowfizadeh-Ghalamfarsa, R., et al. (2021) Current status of Phytophthora in Australia, Persoonia-Molecular Phylogeny and Evolution of Fungi, 47, 151-177.
| Crossref | Google Scholar | PubMed |
Clinton, G. P. (1910) Oöspores of potato blight, Phytophthora infestans, Report of the Connecticut Agricultural Experiment Station, 33-34, 753-774.
| Google Scholar |
De Bary, A. (1876) Researches into the nature of the potato-fungus Phytophthora infestans, Journal of the Royal Agricultural Society of England, s. 2, 12, 239-269.
| Google Scholar |
Duchartre, P. E. S. (1845–1846) Maladie de la pomme de terre (in French), Revue Botanique, 1, 147-182.
| Google Scholar |
Kinealy, C. (1990) The Irish Famine 1845–1852, North Irish Roots, 2(5), 58-161.
| Google Scholar |
McAlpine, D. (1910) Some points of practical importance in connection with the life-history stages of Phytophthora infestans (Mont.) deBary, Annales Mycologici, 8, 156-166.
| Google Scholar |
Morren, C. (1845) Notice sur le Botrytis dévastateur du le champignon des pommes de terre (In French), Annales de la Socie’te’ Royale D’agriculture et de Botanique de Gand: Journal D’horticulture et des Sciences Accessoires, 1, 288-292.
| Google Scholar |
Pethybridge, G. H., and and Murphy, P. A. (1913) On pure cultures of Phytophthora infestans deBary and the development of oospores, The Scientific Proceedings of the Royal Dublin Society, 13, 566-588 Pethybridge.
| Google Scholar |
Ristaino, J. B. (1998) The importance of archival and herbarium materials in understanding the role of oospores in late blight epidemics of the past, Phytopathology, 88(11), 1120-1130.
| Crossref | Google Scholar | PubMed |
Saville, A. C., and and Ristaino, J. B. (2021) Global historic pandemics caused by the FAM-1 genotype of Phytophthora infestans on six continents, Scientific Reports, 11, 12335 Saville.
| Crossref | Google Scholar | PubMed |
Semal, J. (1995) Chronique l’épopée du mildiou de la pomme de terre (1845-1995) (In French), Cahiers Agricultures, 4(4), 287-98.
| Google Scholar |
Smith, E. F. (1896) A bacterial disease of the tomato, eggplant and Irish potato, US Department of Agriculture, Division of Vegetable Physiology and Pathology Bulletin, 12, 1-26.
| Google Scholar |
Tryon, H. (1899) Potato disease, Queensland Agricultural Journal, 5, 57-63.
| Google Scholar |
Tryon, H. (1909a) The potato disease [Phytophthora infestans (Mont.) deBary], Queensland Agricultural Journal, 23(2), 118-127.
| Google Scholar |
White, C. T. (1945) Henry Tryon – first honorary secretary, Royal Society of Queensland, and his place in Queensland science, The Proceedings of the Royal Society of Queensland, 56, 77-80.
| Crossref | Google Scholar |