Robert Valentine Gessner, American mycologist, educator, microbiologist. Member American Association for the Advancement of Science, American Society for Microbiology, Mycological Society of America, British Mycological Society, American Phyopathol. Society, Illinois State Academy of Sciences, International Society Arboriculture, North American Mycological Association.
- Teaching assistant University Rhode Island, Kingston, 1970-1975. Postdoctoral fellow Institute of Marine Sciences, University North Carolina Chapel Hill, Morehead City, North Carolina, 1975-1976, visiting research associate, 1976-1978. Assistant professor Western Illinois University, Macomb, 1978-1982, associate professor, 1982-1988, professor, since 1988.
1970 - 1975
1975 - 1976
1978 - 1982
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