Debra Frederickson Matika, BSc, PhD

Project Support Officer

Debra Frederickson MatikaEmail:

Tel: 0300 067 5895

Forest Research
Northern Research Station
Midlothian EH25 9SY

Admin assistant/ technical support on Phytophthora projects within Tree Health.

Current programmes

  • LWEC Phytothreats project (part of the tree health and plant biosecurity intitiative)
  • Providing admin and technical support
  • Risks of Phytophthora species to the Scottish environment and rural economy
  • Collecting soil and water samples and performing soil baiting to detect Phytophthora species present

Main recent publications

D.E. Frederickson Matika & G. Loake (2014). Redox Regulation in Plant Immune Function. Antioxidants & Redox Signaling 21: 1373-1388.

S. Pazoutov, M. Kolarík, G.N. Odvody, D.E. Frederickson, J. Olsovska & P. Man. (2008). A new species complex including Claviceps fusiformis and Claviceps hirtella. Fungal Diversity 31: 95-110.

S. Pazoutova, G.N. Odvody & D.E. Frederickson (2005). Ergot Fungus Claviceps cynodontis found on the Bermuda grass (Cynodon dactylon) in the Americas. Canadian Journal of Plant Pathology 27: 541-546.

S. Pazoutova & D.E. Frederickson (2005). Genetic Diversity of Claviceps africana on Sorghum and Hyparrhenia. Plant Pathology 54: 749-763.

D.E. Frederickson & G.N. Odvody (2003). Inhibition of Germination of Sphacelial Conidia of Claviceps africana following treatment of Seed-Sphacelia Admixtures with Captan. Crop Protection 22: 95-98.

S. Pazoutova, R. Bandyopadhyay, D. E. Frederickson, P.G. Mantle & R.A. Frederiksen (2000). Relations Among Sorghum Ergot Isolates from the Americas, Africa, India and Australia. Plant Disease 84: 437-442.

D.E. Frederickson, E.S. Monyo, S.B. King, G.N. Odvody & L.E. Claflin (1998). Identification of Pseudomonas syringae, the Cause of Foliar Leafspots and Streaks on Pearl Millet in Zimbabwe. Journal of Phytopathology 147: 701-706.

R. Bandyopadhyay, D.E. Frederickson, N.W. McLaren, G.N. Odvody & M.R. Ryley (1998). Ergot Disease, a New Threat to Sorghum in the Americas and Australia. Plant Disease 82: 356-367.

D.E. Frederickson, E.S. Monyo, S.B. King & G.N. Odvody (1997). A Disease of Pearl Millet in Zimbabwe caused by Pantoea agglomerans. Plant Dis. 81: 959.

D. E. Frederickson & K. Leuschner (1997). The Potential Use of Benomyl for the Control of Ergot (Claviceps africana) in Sorghum A-lines in Zimbabwe. Plant Dis. 81: 761-765.

D.E. Frederickson & P.G. Mantle (1996). Pearl Millet as an Alternate Host of the Sorghum Ergot Pathogen, Claviceps africana. ISMN 37: 83-85.

R. Bandyopadhyay, D.E. Frederickson, N.W. McLaren, & G.N. Odvody (1996). Ergot, a Global Threat to Sorghum. ISMN 37: 1-32 (includes colour supplement for farmers).

D.E. Frederickson, P.G. Mantle & W.A.J. de Milliano (1994). Susceptibility to Ergot in Zimbabwe of Sorghums that Remained Uninfected in their Native Climates of Ethiopia and Rwanda. Plant Pathol. 43: 27-32.

D.E. Frederickson, P.G. Mantle & W.A.J. de Milliano (1993). Windborne Spread of Ergot Disease (Claviceps africana) in Sorghum A-lines in Zimbabwe. Plant Pathol. 42: 368-377.

D.E. Frederickson, P.G. Mantle & W.A.J. de Milliano (1991). Claviceps africana sp.nov.; the Distinctive Ergot Pathogen of Sorghum in Zimbabwe. Mycol. Res. 95: 1101-1107.

D.E. Frederickson, P.G. Mantle & W.A.J. de Milliano (1989). Secondary Conidiation of Sphacelia sorghi on Sorghum, a Novel Factor in the Epidemiology of Sorghum Ergot Disease. Mycol. Res. 93: 497-502.

D.E. Frederickson & P.G. Mantle (1988). Path of Infection of Sorghum by Claviceps sorghi. Physiol. & Molec. Pl. Pathol. 33: 221-234.