Part-time Instructor of Chemistry (Retired Professor of Chemistry),
Neufeld Science Centre 131A
+1 (604) 888-7511 ext. 3362

Department(s) or Program(s)

Research & Scholarship


Ph.D., University of Idaho, 1995. Soil Science (emphasis-plant biochemistry and analytical organic chemistry)

M.Sc., University of Idaho, 1991. Soil Science (chemistry)    

B.Sc., Southern Nazarene University, 1978. Biology 

Recent Publications

Stotz, H.U., Y. Sawada, Y. Shimada, M.Y. Harai, E. Sasaki, M. Krischke, P.D. Brown, K. Saito, and Y. Kamiya. 2011. Role of camalexin, indole glucosinolates, and side chain modification of glucosinolate-derived isothiocyanates in defense of Arabidopsis against Sclerotinia sclerotiorum. Plant Journal, 67:81-93

Brown, P.D. and M.J. Morra. 2009. Inhibition of nitrification in soil by Brassicaceae tissues. J. Agric. Food Chem., 57:7706-7711.

Bainard, L., P.D. Brown, and M. Upadhyaya. 2009. Inhibitory effect of tall hedge mustard (Sisymbrium loeselii) allelochemicals on rangeland plants and arbuscular mycorrhizal fungi. Weed Science, 57:386-393.

Haugen, R., L. Steffes, J. Wolf, P. Brown, S. Matzner, and D.H. Siemens. 2008. Evolution of drought tolerance and defense: dependence of tradeoffs on mechanism, environment and defense switching. Oikos, 117:231-244.

Boege, K., R. Dirzo, D. Siemens, and P. Brown. 2007. Ontogenetic switches from plant resistance to tolerance: Minimizing costs with age? Ecology Letters, 10:177-187.

Jones, T., S. Kulseth, M. Zehfus, P. Brown, and D. H. Siemens. 2006. Simultaneous evolution of competitiveness and defense: induced switching in Arabis drummondii. Plant Ecology, 184 (2): 245-257.

Brown, P.D., J.G. Tokuhisa, M. Reichelt, and J. Gershenzon. 2003. Variation of glucosinolate accumulation among different organs and developmental stages of Arabidopsis thaliana. Phytochemistry, 62:471-481.

Reichelt, M, P.D. Brown, B. Schneider, N.J. Oldham, E. Stauber, J. Tokuhisa, D.J. Kleibenstein, T. Mitchell-Olds, J. Gershenzon. 2002. Benzoic acid glucosinolate esters and other glucosinolates from Arabidopsis thaliana. Phytochemistry, 59:663-671 .

Graser G., N.J. Oldham, P.D. Brown, U. Temp, and J. Gershenzon. 2001. The Biosynthesis of Benzoic Acid Glucosinolate Esters in Arabidopsis thaliana. Phytochemistry, 57:23-32.

Kliebenstein, D. J., J. Kroymann, P. Brown, A. Figuth, D. Pedersen, J. Gershenzon, and T. Mitchell- Olds. 2001. Genetic control of natural variation in Arabidopsis glucosinolate accumulation. Plant Physiology, 126: 811-825.


I have research interests in chemical ecology (the role natural chemistry plays in ecological interactions), natural plant products & biochemistry, soils & soil chemistry, environmental chemistry, bogs, and science-theology-philosophy interactions

Courses Taught

Environmental Chemistry (CHEM 370)
Biochemisty I (CHEM/BIOL 384)
Organic Chemistry I (CHEM 221)
Plant Physiology (BIOL 315)
Soil Science & Geography (GEOG 321)
Senior Thesis (ENVS 409)
Lecture, Seminar, and Discussion on Science and Christianity (NATS 487 and 490)