Theophrastus. Father of botany-(Historia plantarum). 317-287 B.C. http://www.the
-romans.co.uk/g4/13a.triple_sacrifice_large.jpg http://en.wikipedia.org/ ...
Overview I. History of plant diseases and significance of plant pathology II. Symptoms of diseases as a reflection of disturbed physiological function III. Essential plant pathology concepts IV.Causes of plant disease V. Plant-pathogen interactions VI. Plant defense mechanism
Theophrastus Father of botany-(Historia plantarum) 317-287 B.C.
http://en.wikipedia.org/
Middle Ages -Renaissance
Plant diseases contribute to famines Ergot fungus-witchery http://en.wikipedia.org/
Robert Hooke (1635-1703) Father of microscopy Coins term “cell”
Great Irish Famine (1845-1852)
http://www.nysaes.cornell.edu/
http://www.reformation.org/irish_famine.html
Modern times
Robert Hartig (1839-1901) Robert Koch (1843-1910) Heinrich Anton de Bary Father of forest pathology Father of microbiology (1831-1888) Developed Koch’s postulates Wrote 1st textbook Father of plant pathology for proof of pathogenicity Evidence against “spontaneous generation” http://en.wikipedia.org/
Introduced forest diseases of great impact to North American ecosystems Laurel wilt (2003)
Sudden oak death (1995)
Butternut canker (1960s)
Dutch elm disease (1930)
http://www.forestryimages.org/diseases.cfm
White pine blister rust (1906) Chestnut blight (1904)
Diseases in the news • http://www.sciencedaily.com/releases/2008/ 04/080402151409.htm • http://www.guardian.co.uk/environment/20 09/mar/19/rust-fungus-global-wheat-crops
Injury vs. Disease
Symptoms
Signs
References • Chapter 1in Manion, P.D. 1991. Tree disease concepts. Prentice-Hall, NJ, USA. 402 p. • Chapters 1 &9 in Schumann G.L., D’Arcy C. 2006. Essential Plant Pathology. APS Press, St. Paul MN. • http://www.apsnet.org/education/top.html • http://tomvolkfungi.net/ • http://www.wikipedia.org/
