Dr. Larry Peterson

Dr. Larry Peterson
University Professor Emeritus
Department of Molecular and Cellular Biology
SCIE 4446


B.Ed. - University of Alberta
M.Sc. - University of Alberta
Ph.D. - University of California (Davis)


I closed my lab at the end of 2009 but continue to collaborate with Dr. Hugues Massicotte, University of Northern British Columbia in a study of mycoheterotrophic plants.

Selected Publications


Peterson, Larry and Peterson, Carol.  When Is A 'Flower' Not A Flower? and other intriguing questions about plants.  Published by Volumes, Kitchener (2014).

Peterson, R. Larry, Peterson, Carol A. and Lewis H. Melville. 2008. Teaching Plant Anatomy Through Creative Laboratory Exercises. Published by NRC Research Press, Ottawa.

Peterson, R. Larry, Hughes B. Massicotte and Lewis H. Melville. 2004. Mycorrhizas: Anatomy and Cell Biology . NRC Research Press.


Peterson R. Larry, Dean P. Whittier and Lewis H. Melville. 2011. Images of the Morphology and Anatomy of Seedless Vascular Plants and Gymnosperms. Canadian Science Publishing.

Peterson, R. Larry, Hugues B. Massicotte, Lewis H. Melville and Forrest Phillips. 2006. Mycorrhizas: Anatomy and Cell Biology Images, NRC Research Press.

Book Chapters

Massicotte, H.B., R.L. Peterson, L.H.Melville, and D.L. Luoma, D.L. 2012. Biology of mycoheterotrophic and mixotrophic plants.  In: Biocomplexity of Plant –Fungal Interactions. Ed. D. Southworth  John Wiley & Sons, Inc. Oxford.  pp. 109-130

Imhof, S., H.B. Massicotte, L.H. Melville, and R.L. Peterson 2012. Subterranean morphology and mycorrhizal structures. In: Mycoheterotrophy: The Biology of Plants Living on Fungi. Ed. V.S.F.T. Merckx Springer, New York. pp 157-214.

Timonen, S. and R.L. Peterson. 2002. Cytoskeleton in mycorrhizal symbiosis. In: Diversity and Integration in Mycorrhizal Symbioses. Eds. S.E. Smith and A. Smith. Kluwer Academic Press. 199-210.

Massicotte, H.B., L.H. Melville and R.L. Peterson. 2002. Structure-function relationships of mycorrhizal associations revealed by electron microscopy. In: Industrial Applications of Electron Microscopy. Ed. Z.R. Li. Marcel Dekker Publishers. 485-505.

Peterson, R. L , and F. C. Guinel. 2000. The use of plant mutants to study regulation of colonization by AM fungi. In: Arbuscular mycorrhizas: Physiology and Function . Eds. Y. Kapulnik and D. D. Douds, Jr. Kluwer Academic Publishers. pp147-171.

Peterson, R.L., Y. Uetake and L. Armstrong. 2000. Interactions between fungi and plant cytoskeleton. In : Current Advances in Mycorrhizae Research. Eds. G.K. Podila and D.D. Douds American Phytopathological Society Press. pp. 157-178.

Peterson, R.L. and K.J. Stevens. 2000. Evidence for the uptake of non-essential and essential ions by root hairs and their effect on root hair development. In : Cell and Molecular Biology of Plant Root Hairs. Eds. R.W. Ridge and A.M. Emons. Springer. pp.179-195.

Refereed Papers

Wagg, C., P.M. Antunes, and R.L. Peterson. 2011. Arbuscular mycorrhizal fungal phylogeny-related interactions with a non-host. Symbiosis, 53: 41-46.

Wagg, C., B.C. Husband, D, S, Green, H.B. Massicotte, and R.L. Peterson. 2011. Soil microbial communities from an elevational cline differ in their effect on conifer seedling growth. Plant Soil, 340: 491-504.

Massicotte, H.B., R.L. Peterson, L.H. Melville, and L.E. Tackaberry. 2010. Hudsonia ericoides and Hudsonia tomentosa: Anatomy of mycorrhizas of two members in the Cistaceae from Eastern Canada. Botany, 88: 607-616.

Massicotte, H.B., L.H. Melville, R.L. Peterson, L.E. Tackaberry, and D.L. Luoma. 2010. Structural characteristics of root-fungus associations in two mycoheterotrophic species, Allotropa virgata and Pleuriscospora fimbriata (Monotropoideae) from southwest Oregon, USA. Mycorrhiza, 20: 391-397.

Domíngues, L.S., L. Melville, A. Sérsic, A. Faccio, and R.L. Peterson. 2009. The mycohetrotroph Arachnitis uniflora has a unique association with arbuscular mycorrhizal fungi. Botany, 87: 1198-1208.

Peterson, R. Larry, Cameron Wagg and Michael Pautler. 2008. Associations between microfungal endophytes and roots: do structural features indicate function? Botany, 86:445-456.

Massicotte, H.B., L.H. Melville. L.E. Tackaberry and R.L. Peterson 2008. A comparative study of mycorrhizas in several genera of Pyroleae (Ericaceae) from western Canada. Botany, 86: 610-622.

Wagg, Cameron, M. Pautler, H.B. Massicotte, and R.L. Peterson. 2008. The co-occurrence of ectomycorrhizal, arbuscular mycorrhizal, and dark septate fungi in seedlings of four members of the Pinaceae. Mycorrhiza, 18: 103-110.

Gonzalez-Guerrero, M., L.H. Melville, N. Ferrol, J.N.A. Lott, C. Azcón-Aguilar and R.L. Peterson. 2008. Ultrastructural localization of heavy metals in the extraradical mycelium and spores of the arbuscular mycorrhizal fungus Glomus intraradices. Can. J. Microbiol. 54: 103-110.

Massicotte, H.B., L.H. Melville, L.E. Tackaberry and R. L. Peterson. 2007. Pityopus californicus: Structural characteristics of seed and seedling development in a myco-heterotrophic species. Mycorrhiza, 17: 647-653.

Murray, Jeremy, Bogumil Karas, Loretta Ross, Andreas Brachmann, Cameron Wagg, Ryan Geil, Jillian Perry, Katarzyna Nowakowski, Mandy McGillivary, Mark Held, Jens Stougaard, Larry Peterson, Martin Parniske, and Krzysztof Szczyglowski . 2006. Genetic suppressors of the Lotus japonicus har1-1 hypernodulation phenotype. Mol. Plant Microbe Interact. 19: 1082-1091.

Murray, Jeremy, Ryan Geil, Cameron Wagg, Bogumil Karas, Krzysztof Szczyglowski and R. Larry Peterson. 2006. Genetic suppressors of Lotus japonicus har1-1 hypernodulation show altered interactions. Functl. Plant Biol. 33: 749-755.

Saito, K., Y. Kuga- Uetake, M. Saito and R. L. Peterson. 2006. Vacuolar localization of phosphorus in hyphae of Phialocephala fortinii, a dark septate fungal endophyte. Can. J. Microbiol. 52: 643-650.

Domíguez, L., A. Sércic. L. Melville and R.L. Peterson. 2006. ‘Prepackaged symbiosis’: propagules on roots of the myco-heterotrophic plant Arachnitis uniflora. New Phytol. 169: 191-198.