Eve Billing

Eve Billing (1923–2019) was a UK plant pathologist specialising in diseases of fruit trees especially fire blight caused by Erwinia amylovora bacteria. She introduced a modelling system to predict the likelihood of outbreaks of fire blight and also methods for pathogen identification and treatment.

Eve Billing
Died18 February 2019, aged 95
Cirencester
Alma materUniversity of Manchester, UK
Known forFire blight disease of apple and pear trees
Scientific career
Fieldsmicrobiology; plant pathology
InstitutionsUniversity of Reading; East Malling Research Station, Kent

Career

Her career was as a plant pathologist.[1] She specialised in fire blight, a serious world-wide disease of apple, pear and some other fruit trees within the Rosaceae. It is caused by Erwinia amylovora bacteria. She introduced Billing's integrated system, a modelling system to predict the probability of fire blight outbreaks based on weather information and thus improve disease management. Temperature and rainfall when the trees were in flower were key determining factors.[2] She continued to develop it to be applicable more widely and others have since developed it further.[3] She also studied the causal bacteria in detail, including the capsule that led to appreciation of the importance of biofilms in the disease process. Virulence factors, and the basis of natural non-virulent mutants were also part of her research. She was also interested in the potential to use bacteriophages in fire blight disease control.

In 1966 she introduced a series of biochemical tests (LOPAT tests) that were effective in identifying bacterial Pseudomonas groups and species.[4][5]

Eve Billing trained in microbiology at the University of Manchester[6] and by 1957 was employed by the UK government National Agricultural Advisory Service at Wye in Kent, UK.[7] In 1962 she moved to the Department of Microbiology at the University of Reading.[8] By 1972 she was at East Malling Research Station where she was employed for the rest of her career. She retired in the early 1980s but continued research in her kitchen and through correspondence with researchers around the world. Her last publication was in 2011.[1] Her work on transmission of fire blight was cited during World Trade Organisation dispute settlements over fruit imports.[9]

Awards

The non-pathogenic species Erwinia billingiae is named after her.[10][1] It may act antagonistically to the causal agents of fire blight and be useful for biocontrol.[11]

The Second International Symposium on Fire Blight of Rosaceous Plants, June 2019, was dedicated to her memory.[12]

Personal life

Billing was born in 1923. She lived in Finchampstead and Horsmonden during her life, and late after retirement moved to Cirencester. She died 18 December 2019.[1]

Publications

Billing was author or co-author of over 35 scientific publications during more than 50 years from the mid-1950s until 2011 when she was in her late 80s. They included:

References
  1. Sundin, George W.; Leach, Jan E; Mansfield, John W (2019). "OBITUARY OF EVEBILLING,1923-2019" (PDF). International Society of Plant Pathology Newsletter. 49 (4): 1–2. Retrieved 23 April 2021.
  2. Schouten, Henk J. "Studies on fire blight - dissertation 1991". University of Wageningen. Retrieved 27 April 2021.
  3. Billing, Eve (2007). "Challenges in Adaptation of Plant Disease Warning Systems to New Locations: Re-Appraisal of Billing's Integrated System for Predicting Fire Blight in a Warm Dry Environment". Phytopathology. 97 (9): 1036–1039. doi:10.1094/PHYTO-97-9-1036. PMID 18944167.
  4. Taylor, J. D.; Dye, D. W. (1972). "A survey of the organisms associated with bacterial blight of peas". New Zealand Journal of Agricultural Research. 15 (1): 432–440. doi:10.1080/00288233.1972.10430532.
  5. Lelliott, R. A.; Billing, Eve; Hayward, A. C. (1966). "A Determinative Scheme for the Fluorescent Plant Pathogenic Pseudomonads". Journal of Applied Bacteriology. 29 (3): 470–489. doi:10.1111/j.1365-2672.1966.tb03499.x. PMID 5980915.
  6. Billing, Eve (1955). "Studies on a Soap Tolerant Organism: a New Variety of Bacterium anitratum". Journal of General Microbiology. 13 (2): 252–260. doi:10.1099/00221287-13-2-252. PMID 13278472.
  7. Ross, K. F. A.; Billing, Eve (1957). "The Water and Solid Content of Living Bacterial Spores and Vegetative Cells as Indicated by Refractive Index Measurements". Journal of General Microbiology. 16 (2): 418–425. doi:10.1099/00221287-16-2-418. PMID 13416519.
  8. Billing, Eve (1962). "The Value of Phage Sensitivity Tests for the Identification of Phytopathogenic Pseudomonas Spp". Journal of Applied Bacteriology. 26 (2): 193–210. doi:10.1111/j.1365-2672.1963.tb04767.x. Retrieved 27 April 2021.
  9. "DS245: Japan — Measures Affecting the Importation of Apples". World Trade Organization. Retrieved 27 April 2021.
  10. Mergaert, Joris; Hauben, Lysiane; Cnockaert, Margo C.; Swings, Jean (1999). "Reclassification of non-pigmented Erwinia herbicola strains from trees as Erwinia billingiae sp. nov". International Journal of Systematic and Evolutionary Microbiology. 49 (2): 377–383. doi:10.1099/00207713-49-2-377. PMID 10319458.
  11. Kube, Michael; Migdoll, Alexander M.; Ghering, Isabel; others, and 6 (2010). "Genome comparison of the epiphytic bacteria Erwinia billingiae and E. tasmaniensis with the pear pathogen E. pyrifoliae". BMC Genomics. 11: 392. doi:10.1186/1471-2164-11-393. PMC 2897811. PMID 20565991.
  12. "Disease protection" (PDF). Agroscope. Michigan State University. Retrieved 26 April 2021.
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