Researcher Profile

Douglas A. Campbell

Job Title: Assistant Professor
Employer: Mount Allison University
Place of Birth: Digby, Nova Scotia, Canada.
Public School attended: Acadia Elementary, Sackville, N.S.; Thompson Junior High, North Sydney, N.S.
High School attended: Memorial High School, Sydney Mines, N.S.
Further Education: Acadia University (B.Sc. - 1987, Biology), University of Western Ontario (Ph.D. - 1991, Plant Sciences).
Geographic focus of research: Nova Scotia, New Brunswick, Nunavut, Sweden.

Brief synopsis of current research:
Molecular Mechanisms of Environmental Acclimation in Cyanobacteria

Cyanobacteria are an ancient group of aquatic prokaryotes whose photosynthesis created our current oxygen-rich biosphere. The responses of cyanobacteria to environmental change are important factors in the evolution of the environment. I use molecular and physiological analyses to study how cyanobacteria (re)allocate resources under changing natural conditions.

We develop and apply molecular methods to measure levels of key proteins in natural populations. We use this information to determine which elements of the photosynthetic system may limit primary productivity, and which are present in excess over metabolic requirements.


Recent Publications:

Campbell D, Clarke AK, Gustafsson P, and ÷quist G (1999) Oxygen-dependent electron flow influences Photosystem II function and psbA gene expresssion in the cyanobacterium Synechococcus sp. PCC 7942 . Physiologia Plantarum 105:746-755.

Campbell D, Eriksson MJ, ÷quist G, Gustafsson P, and Clarke AK (1998) The cyanobacterium Synechococcus resists UV-B by exchanging photosystem II reaction centre D1 proteins. Proceedings of the National Academy of Sciences of the USA 95: 364-369.

Campbell D, Hurry VM, Clarke AK, Gustafsson P and ÷quist G (1998) Chlorophyll Fluorescence Analysis of Cyanobacterial Photosynthesis and Acclimation. Microbiology and Molecular Biology Reviews 62(3): 667-683.

Palmqvist K, Campbell D, Ekblad A, and Johansson H (1998) Photosynthetic capacity in relation to nitrogen content and its partitioning in lichens with different photobionts. Plant Cell and Environment 21:361-372.