Globalisation and the Threat to Biosecurity

Chapter
Part of the Plant Pathology in the 21st Century book series (ICPP, volume 3)

Abstract

Globalisation has led to a dramatic increase in trade and travel and exotic species are now being exchanged, either accidentally or deliberately, at unprecedented rates between geographically isolated regions, countries and continents. Thus, the natural barriers that once separated the world’s floras and faunas are no longer effective and invasive alien species pose potent and burgeoning threats to both natural and agricultural ecosystems. Due to a combination of luck, in the early days, and judicious selection or quarantine, in later times, man successfully separated many of the coevolved natural enemies (pests and pathogens) from his crop plants, increasing their fitness to such an extent that most of the major crops were concentrated outside their centres of origin, free from natural–enemy pressures. However, progressively accelerating globalisation over the past 150 years has meant that coevolved natural enemies have been catching up with their plant hosts, often with disastrous socio-economic consequences. We review the problem of emerging infectious diseases (EIDs) of crop plants, using past and present examples, and the main factors driving them. Principal amongst these drivers is pathogen pollution involving the anthropogenic movement of disease-causing organisms across evolutionary and geophysical boundaries. In addition, case studies of EIDs of staple food and commodity crops are presented, with particular reference to witches’ broom disease of cocoa as this host-pathogen association embraces all aspects of globalisation and biosecurity. Finally, we identify weaknesses in global phytosanitary protocols, especially for the exchange of germplasm, and discuss measures which could be taken to improve them.

Keywords

Bioterrorism emerging infectious diseases new-encounter diseases pathogen pollution plant health 

References

  1. Aime MC, Phillips-Mora W (2005) The causal agents of witches’ broom disease and frosty pod rot of cacao (chocolate, Theobroma cacao) form a new lineage of Marasmiaceae. Mycologia 97:1012–1022PubMedCrossRefGoogle Scholar
  2. Ainsworth GC (1956) Agostino Bassi, 1773–1856. Nature (Lond) 177:255–257CrossRefGoogle Scholar
  3. Alene AD, Manyong VM, Coulibaly O (2006) Responding to food supply shocks through global partnerships in technology development and transfer: the case of the IITA-led biological control of cassava mealybug in Sub-Saharan Africa. Outlook Agr 35:255–261CrossRefGoogle Scholar
  4. Anderson PK, Cunningham AA, Patel NG, Morales FJ, Epstein PR, Daszak P (2004) Emerging infectious diseases of plants: pathogen pollution, climate change and agrotechnology drivers. Trends Ecol Evol 19:535–544PubMedCrossRefGoogle Scholar
  5. Anderson RM, May RM (1986) The invasion, persistence and spread of infectious diseases within animal and plant communities. Philos Trans R Soc (Lond) Ser B 314:533–570CrossRefGoogle Scholar
  6. Anon (2007) Foresight: Detection and identification of infectious diseases projectGoogle Scholar
  7. One-Year Review April 2006–May 2007Google Scholar
  8. Babadoost M (2000) Comments on the zero-tolerance quarantine of Karnal bunt of wheat. Plant Dis 84:711–712CrossRefGoogle Scholar
  9. Bartley BGD (2005) The genetic diversity of cacao. CABI Publishing, Wallingford, Oxon, 341 ppGoogle Scholar
  10. Berkeley MJ (1846) Observations, botanical and physiological, on the potato murrain. J Hort Soc (Lond) 1:9–34Google Scholar
  11. Bonde MR, Peterson GL, Schaad NW (1997) Karnal bunt of wheat. Plant Dis 81:1370–1377CrossRefGoogle Scholar
  12. Bowden J, Gregory PH, Johnson CG (1971) Possible wind transport of coffee leaf rust across the Atlantic Ocean. Nature (Lond) 229:500–501CrossRefGoogle Scholar
  13. Brasier CM (2001) Rapid evolution of introduced plant pathogens via interspecific hybridization. BioScience 51:123–133CrossRefGoogle Scholar
  14. Brasier CM, Duncan JM (1999) Origin of a new Phytophthora pathogen through interspecific hybridization. Proc Natl Acad Sci U S A 96:5878–5883PubMedCrossRefGoogle Scholar
  15. Bridge PD, Waller JM, Davies D, Buddie AG (2008) Variability of Colletotrichum kahawae in relation to other Colletotrichum species from tropical perennial crops and the development of diagnostic techniques. J Phytopathol 156:274–280CrossRefGoogle Scholar
  16. Buddenhagen IW (1977) Resistance and vulnerability of tropical crops in relation to their evolution and breeding. Ann N Y Acad Sci 287:309–326CrossRefGoogle Scholar
  17. Chakraborty S, Luck J, Hollaway G, Freeman A, Norton R, Garrett KA, Percy K, Hopkins A, Davis C, Karnosky DF (2008) Impacts of global change on diseases of agricultural crops and forest trees. CAB Rev 3:54. http://www.cababstractsplus.org/cabreviews Google Scholar
  18. Cunningham AA, Daszak P, Rodriguez JP (2003) Pathogen pollution: defining a parasitological threat to biodiversity conservation. J Parasitol 89:578–583Google Scholar
  19. Daszak PL, Cunningham AA, Hyatt AD (2000) Emerging infectious diseases of wildlife–threats to biodiversity and human health. Science 287:443–449PubMedCrossRefGoogle Scholar
  20. Delgado AE, Silveira Pinto H, Helminsk AM (2004) Impacto das mudancas climaticas no zoneamento agroclimatico do cafe no Brasil. Pesqu Agropecu Bras 39:1057–1064CrossRefGoogle Scholar
  21. Drenth A, Janssen EM, Grovers F (1995) Formation and survival of oospores of Phytophthora infestans under natural conditions. Plant Pathol 44:86–94CrossRefGoogle Scholar
  22. Ellison CA (1992) Mycoherbicide control of Rottboellia cochinchinensis: a viable alternative? Plant Prot Q 7:163–165Google Scholar
  23. Elphinstone JG, Stanford HM, Stead DE (1998) Detection of Ralstonia solanacearum in potato tubers, Solanum dulcamara and associated irrigation water. In: Prior P, Allen C, Elphinstone J (eds) Bacterial wilt diseases: molecular and ecological aspects. Springer, BerlinGoogle Scholar
  24. Ersek T, Nagy ZA (2008) Species hybrids of the genus Phytophthora with emphasis on the alder pathogen Phytophthora alni: a review. Eur J Plant Pathol 122:31–39CrossRefGoogle Scholar
  25. Evans HC (2002) Invasive neotropical pathogens of tree crops. In: Watling R, Frankland JC, Ainsworth AM, Isaac W, Robinson CH (eds) Tropical mycology 2: Micromycetes. CABI Publishing, Wallingford, Oxon, pp 83–112CrossRefGoogle Scholar
  26. Evans HC (2007) Cacao diseases–the trilogy revisited. Phytopathology 97:1640–1643PubMedCrossRefGoogle Scholar
  27. Evans HC (2008) The endophyte-enemy release hypothesis: implications for classical biological and plant invasions. In: Julien MH, Sforza R, Bon MC, Evans HC, Thatcher PE, Hinz HL, Rector BG (eds) Proceedings of the twelfth international symposium on biological control of weeds. CABI Publishing, Wallingford, Oxon, pp 20–26Google Scholar
  28. FAO (1995) International standards for phytosanitary measures: Principles of plant quarantine as related to international trade. Rome, Secretariat of the International Plant Protection ConventionGoogle Scholar
  29. Fry WE, Goodwin SB (1997) Resurgence of the Irish potato famine fungus. BioScience 47:363–371CrossRefGoogle Scholar
  30. Garrett KA, Dendy SP, Frank EE, Rouse MN, Travers SE (2006) Climate change effects on plant disease: genomes to ecosystems. Annu Rev Phytopathol 44:489–509PubMedCrossRefGoogle Scholar
  31. GCSP (2006) Definitions of globalization: A comprehensive overview and a proposed definition. Switzerland, Geneva Centre for Security PolicyGoogle Scholar
  32. Goodwin SB, Cohen BA, Deahl KL, Fry WE (1994) Migration from northern Mexico as the probable cause of recent genetic changes in populations of Phytophthora infestans in the United States and Canada. Phytopathology 84:553–558CrossRefGoogle Scholar
  33. Goodwin SB, Sujkowski LS, Fry WE (1995) Rapid evolution of pathogenicity within clonal lineages of the potato late blight disease fungus. Phytopathology 85:669–676CrossRefGoogle Scholar
  34. Gouveia MMC, Ribeiro A, Varzea VMP, Rodrigues CJ (2005) Genetic diversity in Hemileia vastatrix based on RAPD markers. Mycologia 97:396–404PubMedCrossRefGoogle Scholar
  35. Harlan JR (1995) The living fields. Cambridge University Press, UKGoogle Scholar
  36. Harvell CD, Mitchell CE, Ward JR, Altizer AP, Dobson AP, Astfeld RS, Samuel MD (2002) Climate warming and disease risks for terrestrial and marine biota. Science 296:2158–2162PubMedCrossRefGoogle Scholar
  37. Heather NW, Hallman GJ (2008) Pest management and phytosanitary trade barriers. CABI Publishing, Wallingford, OxonCrossRefGoogle Scholar
  38. Henderson JS, Joyce RA, Hall GR, Hurst WJ, McGovern PE (2007) Chemical and archeological evidence for the earliest cacao beverages. Proc Natl Acad Sci U S A 104:18937–18940PubMedCrossRefGoogle Scholar
  39. Huelma CC, Moody K, Mew TW (1996) Weed seeds in rice seed shipments: A case study. Int J Pest Manage 42:147–150CrossRefGoogle Scholar
  40. IATA (2008) World air transport statistics, 52nd edn. IATAGoogle Scholar
  41. Jones DR, Baker RHA (2007) Introduction of non-native plant pathogens into Great Britain, 1970–2004. Plant Pathol 56:891–911CrossRefGoogle Scholar
  42. Kingsolver CH, Melching JS, Bromfield KR (1983) The threat of exotic plant pathogens to agriculture in the United States. Plant Dis 67:595–600CrossRefGoogle Scholar
  43. Klinkowski M (1970) Catastrophic plant disease. Annu Rev Phytopathol 8:37–60CrossRefGoogle Scholar
  44. Large EC (1940) The advance of the fungi. J. Cape, LondonGoogle Scholar
  45. Lederberg J, Shope RE, Oaks SC (eds) (1992) Emerging infections: Microbial threats to health in the United States. National Academy Press, Washington, DCGoogle Scholar
  46. Legg JP, Thresh JM (2000) Cassava mosaic virus disease in East Africa: a dynamic disease in a changing environment. Virus Res 71:135–149PubMedCrossRefGoogle Scholar
  47. Major RH (1944) Agostino Bassi and the parasite theory of disease. Bull Hist Med 16:97–107Google Scholar
  48. Marshall D, Tunali B, Nelson LR (1999) Occurrence of fungal endophytes in species of wild Triticum. Crop Sci 39:1507–1512CrossRefGoogle Scholar
  49. McCook S (2006) Global rust belt: Hemileia vastatrix and the ecological integration of world coffee production since 1850. J Global Hist 1:177–195CrossRefGoogle Scholar
  50. McGee DC (1977) Plant pathogens and the worldwide movement of seeds. APS Press, St. Paul, MNGoogle Scholar
  51. Milhollon RW, Burner DM (1993) Itchgrass (Rottboellia cochinchinensis) biotypes in world populations. Weed Sci 41:379–387Google Scholar
  52. Morales FJ, Anderson PK (2001) The emergence and dissemination of whitefly-transmitted geminiviruses in Latin America. Arch Virol 146:415–441PubMedCrossRefGoogle Scholar
  53. Murray GM, Brennan JP (1998) The risk to Australia from Tilletia indica, the cause of Karnal bunt of wheat. Australas Plant Pathol 27:212–225CrossRefGoogle Scholar
  54. Neuenschwander P (1996) Evaluating the efficacy of biological control of three exotic homopteran pests in tropical Africa. Entomophaga 41:405–424CrossRefGoogle Scholar
  55. Pita JS, Fondong VN, Sangare A, Otim-Nape GW, Ogwal S, Fauquet CM (2001) Recombination, pseudorecombination and synergism of geminiviruses are determinant keys to the epidemic of severe cassava mosaic disease in Uganda. J Gen Virol 82:655–665PubMedGoogle Scholar
  56. Ploetz RC (2007a) Diseases of tropical perennial crops: challenging problems in diverse environments. Plant Dis 91:644–663CrossRefGoogle Scholar
  57. Ploetz RC (2007b) Cacao diseases: important threats to chocolate production worldwide. Phytopathology 97:1634–1639PubMedCrossRefGoogle Scholar
  58. Polyak MG (2004) The threat of agroterrorism. Georget J Int Aff 2004:31–39Google Scholar
  59. Rodriguez RJ, Redman RS, Henson JM (2004) The role of fungal symbioses in the adaptation of plants to high stress environments. Mitig Adapt Strat Glob Change 9:261–272CrossRefGoogle Scholar
  60. Rosenzweig C, Iglesias A, Yang XB, Epstein PR, Chivian E (2001) Climate change and extreme weather events: implications for food production, plant diseases and pests. Global Change Hum Health 2:91–104Google Scholar
  61. Roy BA, Gusewell S, Harte J (2004) Response of plant pathogens and herbivores to a warming experiment. Ecology 85:2570–2581CrossRefGoogle Scholar
  62. Saari EE, Prescott JM (1985) World distribution in relation to economic losses. In: Roelfs AP, Bushnell WH (eds) The cereal rusts, vol. 2, distribution, epidemiology and control. Academic, Orlando, FL, pp 259–298Google Scholar
  63. Sansford CE, Baker RHA, Brennan F, Ewert B, Gioli A, Inman A, Kinsella A, Magnus HA, Miglietta F, Murray GM, Port-Puglia A, Porter JA, Rafoss T, Riccioni L, Thorne F (2008) The new Pest Risk Analysis for Tilletia indica, the cause of Karnal bunt of wheat, continues to support the quarantine status of the pathogen in Europe. Plant Pathol 57:603–611CrossRefGoogle Scholar
  64. Schardl CL, Craven KD (2003) Interspecific hybridization in plant-associated fungi and oomycetes: A review. Mol Ecol 12:2861–2873PubMedCrossRefGoogle Scholar
  65. Singh RP, Hodson DP, Jin Y, Huerto-Espino J, Kinya MG, Wanyera R, Njau P, Ward RW (2006) Current status, likely migration and strategies to mitigate the threat to wheat production from race Ug99 (TTKS) of stem rust pathogen. CAB Rev: Perspect Agri, Vet Sci, Nutr Nat Res 1:1–13Google Scholar
  66. Sseruwagi P, Rey MEC, Brown JK, Legg JP (2004) The cassava mosaic geminiviruses occurring in Uganda following the 1990s epidemic of severe cassava mosaic disease. Ann Appl Biol 145:113–121CrossRefGoogle Scholar
  67. Steinhaus EA (1956) Microbial control, the emergence of an idea. Hilgardia 26:107–157Google Scholar
  68. Stokstad E (2007) Deadly wheat fungus threatens world’s breadbaskets. Science 315:1786–1787PubMedCrossRefGoogle Scholar
  69. Tantius PM, Fyfe AM, Shaw D, Shattock RC (1986) Occurrence of the A2 mating type and self fertile isolates of Phytophthora infestans in England and Wales. Plant Pathol 35:578–581CrossRefGoogle Scholar
  70. Thorold CA (1975) Diseases of cocoa. Clarendon Press, OxfordGoogle Scholar
  71. Thurston HD (1973) Threatening plant diseases. Annu Rev Phytopathol 11:27–52CrossRefGoogle Scholar
  72. Van Alfen NK (2001) Whither plant pathology? Phytopathology 91:17–19PubMedCrossRefGoogle Scholar
  73. Waller JM (1979) The recent spread of coffee rust (Hemileia vastatrix Berk. & Br) and attempts to control it. In: Ebbels DL, King JE (eds) Plant health. Blackwell, Oxford, pp 275–283Google Scholar
  74. Waller JM (1984) The influence of agricultural development on crop diseases. Trop Pest Manag 30:86–93CrossRefGoogle Scholar
  75. Waller JM, Bigger M, Hillocks RJ (2007) Coffee pests, diseases and their management. CABI Publishing, Wallingford, OxonCrossRefGoogle Scholar
  76. Wheelis M, Casagrande R, Madden LV (2002) Biological attack on agriculture: low-tech, high-impact terrorism. BioScience 52:569–576CrossRefGoogle Scholar
  77. Wilson CL (1987) Exotic plant pathogens – who’s responsible? Plant Dis 71:863CrossRefGoogle Scholar
  78. Zhou X, Liu Y, Clavert L, Muniz C, Otim-Nape GW, Robinson DJ, Harrison BD (1997) Evidence that DNA-A of a geminivirus associated with severe cassava mosaic disease in Uganda has arisen by interspecific recombination. J Gen Virol 78:2101–2111PubMedGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.CAB International, UK-European CentreEghamUK

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