Publications
Burke DJ, Martin KJ, Rygiewicz PT & Topa MA (2006) Relative abundance of ectomycorrhizas in a managed loblolly pine (Pinus taeda L.) genetics plantation as determined through terminal restriction fragment length polymorphism (TRFLP) profiles. Canadian Journal of Botany, 84: 924-932.
Burke DJ, Kretzer AM, Rygiewicz PT & Topa MA (2006) Soil bacterial diversity in a loblolly pine plantation: Influence of ectomycorrhizas and fertilization. FEMS Microbiology Ecology, 57: 409-419.
Martin TA, Dougherty PM, Topa MA & McKeand SE (2005) Strategies and case studies for incorporating ecophysiology into southern pine tree improvement programs. Southern Journal of Applied Forestry, 29(2): 70-80.
Burke DJ, Martin KJ, Rygiewicz PT & Topa MA (2005) Ectomycorrhizal fungi identification in single and pooled root samples: terminal restriction fragment length polymorphism (TRFLP) and morphotyping compared. Soil Biology and Biochemistry, 37: 1683-1694.
Topa MA, McDermitt DJ, Yun S-C & King PS (2004) Do elevated ozone and variable light alter carbon transport to roots in sugar maple? New Phytologist, 162: 173-186.
Topa MA (2004) Tree Physiology: Root System Physiology. In: The Encyclopedia of Forest Sciences, (J. Burley, J.Evans and J. Youngquist, eds.). Elsevier Science Ltd., London, UK. pp. 1606-1616.
Yang WQ, Murthy R, King PS & Topa MA (2002) Diurnal changes in gas exchange and carbon partitioning in needles of fast- and slow-growing families of loblolly pine (Pinus taeda). Tree Physiology, 22: 489-498.
Retzlaff WA, Blaisdell GK & Topa MA (2001a) Seasonal changes in water source of four families of loblolly pine (Pinus taeda L.). Trees Structure and Function, 15: 154-162.
Retzlaff WA, Handest JA, O’Malley DM, McKeand SE & Topa MA (2001b) Whole-tree biomass and carbon allocation of juvenile trees of loblolly pine (Pinus taeda L.): influence of genetics and fertilization. Canadian Journal of Forest Science, 31: 960-970.
Topa MA, Vanderklein DW & Corbin AT (2001) Effects of elevated ozone and low light on diurnal and seasonal carbon gain in sugar maple (Acer saccharum Marsh.). Plant Cell and Environment, 24: 663-677.
Botton B, Chalot M, Dizengremel P, LeTacon F, Rygiewicz P & Topa M (eds.) (2001) Dynamics of Physiological Processes in Woody Roots. Tree Physiology, 21: 71-200, Heron Publishing, Victoria Canada.
Bäck J, Vanderklein DW & Topa MA (1999) Effects of elevated ozone on CO2 uptake and leaf structure in sugar maple under two light environments. Plant, Cell and Environment, 22: 137-147.
Ayling SM & Topa MA (1998) Phosphorus compartmentation in Pinus serotina Michx. (Pond pine): Observations from in vivo nuclear magnetic resonance spectroscopy. Plant, Cell and Environment, 21: 723-730.
Kuehny J & Topa MA (1998) Diurnal changes in allocation and partitioning of recently-assimilated carbon in loblolly pine seedlings. Physiologia Plantarum, 104: 317-328.
Topa MA & Sisak CL (1997) Characterization of phosphorus uptake in slow- and fast-growing southern pine seedlings grown in solution culture. Plant and Soil, 190: 317-329.
Topa MA, Rygiewicz PT & Cumming JR (eds.) (1996) Dynamics of Physiological Processes in Woody Roots. Tree Physiology, 16: 877-1046, Heron Publishing, Victoria Canada.
Topa MA (1996) Seed source variation in 32P uptake and transport in Pinus taeda L. seedlings: A possible regulatory role for efflux. Plant and Soil, 182: 259-265.
Topa MA & Cheeseman JM (1994) Maintenance of 32P uptake and transport in Pinus serotina seedlings under hypoxic growth conditions. Physiologia Plantarum, 92: 171-180.
Topa MA & Cheeseman JM (1993) 32P uptake and transport to shoots of Pinus serotina seedlings under aerobic and hypoxic growth conditions. Physiologia Plantarum, 87: 125-133.
Topa MA & Cheeseman JM (1992a) Carbon and phosphorus partitioning in Pinus serotina seedlings growing under hypoxic and low-phosphorus conditions. Tree Physiology, 10: 195-207.
Topa MA & Cheeseman JM (1992b) Effects of root hypoxia and a low P supply on relative growth, carbon dioxide exchange rates and carbon partitioning in Pinus serotina seedlings. Physiology Plantarum, 86: 136-144.
Topa MA & Jackson WA (1988) Influence of ambient ammonium on net potassium uptake by decapitated maize seedlings. New Phytologist, 110: 135-141.
Topa MA & McLeod KW (1988) Promotion of aerenchyma formation in Pinus serotina seedlings by ethylene. Canadian Journal of Forest Research, 18: 276-280.
Topa MA & McLeod KW (1986a) Aerenchyma and lenticel formation in pine seedlings: A possible avoidance mechanism to anaerobic growth conditions. Physiologia Plantarum, 68: 540-550.
Topa MA & McLeod KW (1986b) Effects of anaerobic growth conditions on P tissue concentrations and absorption rates of southern pine seedlings. Tree Physiology, 2: 327-340.
Topa MA & McLeod KW (1986c) Responses of Pinus clausa, Pinus serotina and Pinus taeda seedlings to anaerobic solution culture. I. Changes in growth and root morphology. Physiology Plantarum, 68: 523-531.
Topa MA & McLeod KW (1986d) Responses of Pinus clausa, Pinus serotina and Pinus taeda seedlings to anaerobic solution culture. II. Changes in tissue nutrient concentration and net acquisition. Physiologia Plantarum, 68: 532-539.
