Dr. Ir. Peter Twumasi

imageName: Dr. Ir. Peter Twumasi                 Click To view Full Profile
Rank : Senior Lecturer
Contact No.: 0245-131806
Email address: twumasipeter@gmail.com; ptwumasi.sci@knust.edu.gh;
Courses taught:

    Bachelor’s courses

  1. Molecular Genetics (BCHEM 455, KNUST);
  2. Molecular Biology and Biotechnology (BCHEM 456, KNUST);
  3. Plant Tissue Culture Methodology (BCHEM 461, KNUST);
  4. Trends in Molecular and Clinical Biochemistry (BCHEM 492, KNUST)

      Master’s courses

  1. Methods in Biotechnology (BCHEM 583, KNUST)
  2. Recombinant DNA and Genetic Manipulation (BCHEM 551, KNUST)
  3. Analytical Biochemistry Practical (MMC 121, Amity University, India)
  4. Genetic Modification (MMC 308, Amity University, India)
  5. Biochemistry I (MMC 104, Amity University, India)

 Research Interests:

  1. Genetic characterization and diversity studies of plants and microbes
  2. DNA fingerprinting  of organisms
  3. PCR-assisted diagnosis of microbial infections and genetic diseases
  4. Metallic and microbial toxicity of vegetables
  5. Tissue culture and micropropagation
  6. Bioenergy research

Publications

Published peer reviewed papers

  1. Darko, S.N., Nsiah, K and Twumasi, P. (2013). Prevalence of papc and usp virulence factors in uropathogenic Escherichia coli causing asymptomatic urinary tract infections in adolescents. British Microbiology Research Journal, 3(3): 423-430.
  2. Fletcher, E.K.A. Amoako, T.N.E. and Twumasi, P. (2011). Effect of 2,4-D, explants type and cultivar on the callogenesis expression of cassava (Manihot esculenta Crantz) in Ghana. African Journal of Biotechnology 10(46), pp. 9396-9401.
  3. Acquah, E.W., Quain, M. D. and Twumasi, P. (2011). Genetic relationships between some released and elite Ghanaian cassava cultivars based on distance matrices. African Journal of Biotechnology 10(6): pp. 913-921.
  4. Twumasi, P., Schel, J.H.N. and van Ieperen, W. (2010). Osmotic potential of Zinnia elegans plant material affects the yield and morphology of tracheary elements produced in vitro. African Journal of Biotechnology 9(51): pp. 8712-8721.
  5. Mensah, F.O., Twumasi, P., Amenawonyo, X.K., Larbie, C. and Baffo Jnr, A.K. (2010). Pica practice among pregnant women in the Kumasi metropolis of Ghana. Pica practice among pregnant women in the Kumasi metropolis of Ghana. Royal Society of Tropical Medicine 2(4): 282-286.
  6. Twumasi, P., Iakimova, E. T., Gian, T., van Ieperen, W., Schen, J. H. N., Emons, A.M.C., van Kooten, O. and Woltering, E.J. (2010). Caspase inhibitors affect the kinetics and dimensions of tracheary elements in xylogenic Zinnia (Zinnia elegans) cell cultures. BMC Plant Biol. 10:162.
  7. Twumasi, P., Schel, J. H., van Ieperen, W., Woltering, E., van Kooten, O. and Emons, A. M. (2009). Establishing in vitro Zinnia elegans cell suspension culture with high tracheary element differentiation. Cell Biol Int. 33(4): 524-533.
  8. Twumasi, P., Schel, J. H. N. and van Ieperen, W. (2009). Differential effects of temperature on stem length and xylem vessel length distribution in Zinnia elegans.  Journal of Horticultural Science and Biotechnology 84 (5) 531-535.
  9. Twumasi, P.; Ieperen, W. van; Woltering, E.J.; Emons, A.M.C.; Schel, J.H.N.; Meeteren, U. van; Marwijk, D. van (2005). Effects of water stress during growth of xylem anatomy, xylem functioning and vase life in three Zinnia elegans cultivars. Acta Horticulturae 669, 303 - 312.
  10. Part of MSc results published in: Limpens E, Franken C, Smit P, Willemse J, Bisseling T, Geurts R. (2003). LysM domain receptor kinases regulating rhizobial Nod factor-induced infection. Science 302:630-633. [Peter Twumasi in Acknowledgement].

Published Books

  1. Prasad, R., Kumar, A., Upadhyaya, C. P., Prasad, K. S., Twumasi, P., Bagde, U. S. and Varma, A. (2012). Biotechnology: A Global Scenario. In R. Prasad and A. Kumar (Eds.), Environmental and Biotechnology. pp.1-22.
  2. Twumasi, P. (2007), Hydraulic properties of Zinnia elegans: from cellular development in vitro to performance in planta. In Thesis: Wageningen University and Research Centre. [S.l.] : [s.n.], - p. 160.  Promotor(en): Emons, Prof dr A.M.C.; Kooten, Prof dr O. van, co-promotor(en): Ieperen, Dr ir W. van; Schel, Dr J.H.N.
  3. Twumasi, P. (2003): The Medicago truncatula Genome as reference for Legume Crops. In Thesis: MSc Biotechnology Degree Programmme, Wageningen University. The Netherlands. Supervisors: Prof. Dr. Ton Bisseling; Co-supervisors: Dr. Rene Guerts; Dr. Olga Kulikova (Molecular Biology Lab, Wageningen University, The Netherlands).
  4. Twumasi, P. (1999): Production of wine from banana juice. In Thesis: B.Sc. Biochemistry Degree Programme, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana. Supervisor: Dr K.B. Egyankor.

MEETINGS, CONFERENCE PROCEEDINGS, ABSTRACTS AND WORKSHOPS

  1. Twumasi, P., Makafui, B. and Opoku-Kusi Jr, G. Heavy metallic and microbial concentration of vegetable crops grown on refuse dumpsites in the Kumasi Metropolis. 28th Biennial Conference of Ghana Science Association (GSA), University of Ghana, Legon, Accra, Ghana. 14-19 July 2013 (Conference paper).
  2. Twumasi, P., Oppong, A. A., Amoah-Antwi, C. and Opoku-Kusi Jr, G. Assessment of nosocomial infections and antibiotic resistance levels in two hospitals in the Kumasi Metropolis. 28th Biennial Conference of Ghana Science Association (GSA), University of Ghana, Legon, Accra, Ghana. 14-19 July 2013 (Conference paper).
  3. Twumasi, P., Dy-yakah, C. D., Okyere, M., Afful, B. and Opoku-Kusi Jr, G. Assessing the prevalence of urinary tract infection in school children in the Kumasi Metropolis using classical microbial culturing technique  and PCR. 28th Biennial Conference of Ghana Science Association (GSA), University of Ghana, Legon, Accra, Ghana. 14-19 July 2013 (Conference paper).
  4. Twumasi, P., Yeboah, E. and Nsiah, K. Treatment of lead-poisoned rats through oral administration of different palm oil extracts. 28th Biennial Conference of Ghana Science Association (GSA), University of Ghana, Legon, Accra, Ghana. 14-19 July 2013 (Conference paper).
  5. Darko, S., Twumasi, P. and Nsiah, K. Comparative Diagnosis and prevalence determination of urinary tract infection by Escherichia coli using dipstick, culture and PCR in an adolescent population. 5th Annual Conference of Ghana Biomedical Convention, Noghuchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana. 30 July-1August 2012. (Conference paper).
  6. Twumasi, P., Towards the sustainability of Agriculture in the light of the Oil Find in Ghana: The Way Forward, 13thBiennial Workshop of the Ghana Science Association held at Cocoa Research Institute of Ghana (CRIG), Akim-Tafo. August 1, 2012. (Attendance).
  7. Dwamena A. K., Oppong, R. F. and Twumasi, P. Paternity profiling of children from selected families at Bomso in the Kumasi metropolis using ABO blood grouping system and DNA fingerprinting. 5th Annual Conference of Ghana Biomedical Convention, Noghuchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana. 30 July-1August 2012. (Conference paper).
  8. Oppong, R.F., Okoro, R. and Twumasi, P. Heavy metallic and microbial contamination of vegetables cultivated on refuse dumpsites in Kumasi. 5th Annual Conference of Ghana Biomedical Convention, Noghuchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana. 30 July-1August 2012. (Conference paper).
  9. Twumasi, P. DRUSSA Research uptake implementation planning event held at Centre for Business Development Conference Room at the Commercial Area, KNUST, Kumasi. November 15, 2012. (Attendance).
  10. Twumasi, P., Biochemistry, its relevance and career opportunities, Ghana Biochemistry Students Association (GBSA), KNUST, Kumasi. October 5, 2011. (Conference paper)
  11. Twumasi, P. What can I do after school? Biochemistry and Food Science Christian Fellowship-KNUST, Kumasi. October 14, 2011. (Conference Paper).
  12. Twumasi, P. Bioinformatics of next-generation sequence for plant breeding and medical data analysis, College of Science Auditorium, KNUST, Kumasi. March 14, 2012. (Attendance).
  13. Twumasi, P., Mensah, F. O., Nsiah, K., Arthur, F.K.N and Firempong, C.  Health talk on Hepatitis B Virus, hypertension, diabetes, nutrition and health, and urinalysis and urinary tract infections (Resource Person) for Teachers of the Tafo Sub-Metro of Ghana Education Service, Tafo Methodist, Kumasi.  November 25, 2011. (Conference Paper).
  14. Twumasi, P., Mensah, F. O., Nsiah, K., Arthur, F.K.N and Firempong, C. Health talk on Hepatitis B Virus, hypertension, diabetes, nutrition and health, and urinalysis and urinary tract infections (Resource Person) for Teachers of the Asokwa Sub-Metro of Ghana Education Service, Ahensan Methodist Church in Asokwa Sub-Metro, Kumasi.  November 25, 2011. (Conference Paper).
  15. Twumasi, P, Mensah, F. O., Nsiah, K., Arthur, F.K.N and Firempong, C. Health talk on Hepatitis B Virus, hypertension, diabetes, nutrition and health, and urinalysis and urinary tract infections (Resource Person) for Teachers of the Subin Sub-Metro of Ghana Education Service, Nat Hall, Subin Sub-Metro, Kumasi.  November 18, 2011. (Conference Paper).
  16. 16.  Twumasi, P., Mensah, F. O., Nsiah, K., Arthur, F.K.N and Firempong, C. Health talk on Hepatitis B Virus, hypertension, diabetes, nutrition and health, and urinalysis and urinary tract infections (Resource Person) for Teachers of the Bantama Sub-Metro of Ghana Education Service, State Boys, Bantama Sub-Metro, Kumasi.  October 28, 2011. (Conference Paper).
  17. Twumasi, P., What can I do after School? Biochemistry and Food Science Christian Fellowship, Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. October 14, 2011 (Conference paper).
  18. Twumasi, P., Sourcing for funding for postgraduate research in Ghana and beyond. Second GRASAG-KNUST Postgraduate Research Conference, Great hall, KNUST, Kumasi. March 2011. (Conference paper).
  19. Twumasi, P., Biochemistry; its relevance and career opportunities. Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. October 5, 2011 (Conference paper).
  20. Twumasi, P., Life is born out of death: the interplay of apoptosis, cellulose biosynthesis and xylogenesis. Amity Institute of Microbial Technology, Amity University, Uttar Pradesh, India.  June 5 – September 5, 2011 (Conference Paper).
  21. Twumasi, P., Kwame Nkrumah University of Science and Technology (KNUST): Ghana’s Premier University. Amity Institute of Microbial Technology, Amity University, Uttar Pradesh, India.  August 29, 2011 (Conference Paper).
  22. Twumasi, P., Molecular Genetics and Forensic Science. Amity Institute of Microbial Technology, Amity University, Uttar Pradesh, India.  June 5 – September 5, 2011 (Conference Paper).
  23. Twumasi, P., Stewardship awareness creation workshop for NARS, Universities and MDAs (SABIMA). Miklin Hotel at Shiashi in Accra, Ghana September 22 -23, 2010 (Conference Paper).
  24. Twumasi, P., Enlightening our generation. Kumasi Academy Senior High School, Kumasi. March 2010. (Conference paper).
  25. Twumasi, P. Open Educational Resource (OER) Workshop held at Conference Room, faculty of Pharmacy and Pharmaceutical Sciences, KNUST, Kumasi. October 8, 2010. (Attendance).
  26. Twumasi, P., Empowerment: self-empowered, physical, social and spiritual growth. Womens’s Commission-KNUST, Law Auditorium, KNUST. Kumasi, Ghana. September 4, 2010 (Conference paper).
  27. Twumasi, P. Two-Day Orientation workshop for New Staff of KNUST organized by Quality Assurance and Planning Units (QAPU) and the Human Resource Division. Academic Board Conference Room, Great Hall of KNUST, Kumasi. October 18-19, 2010. (Attendance).
  28. Twumasi, P., Dzandu C. K., Amoako, T.N.E. (2009). Evaluation of the seroprevalence of Hepatitis B virus in two communities in Kumasi. Abstract: EMBO Conference proceedings, 29 August – 1 September 2009. Amsterdam, The Netherlands. (Conference paper).
  29. Twumasi, P., Ohene-Nyako, M. and Amoako, T.N.E. (2009). Detection of waterborne pathogens using polymerase chain reaction and culture analysis. Abstract: 26th Biennial Conference of the Ghana Science Association. 4 – 9 August 2009. Cape Coast, Ghana. (Conference paper).
  30. Twumasi, P., Xenyo, A.A. and Amoako, T.N.E. (2009). Detection of hepatitis B virus in human serum using immunoassay and PCR. Abstract: 26th Biennial Conference of the Ghana Science Association. 4 – 9 August 2009. Cape Coast, Ghana. (Conference paper).
  31. Twumasi, P. The Impact of role model on the lives of children, Anyinasuso Junior High School, Anyinasuso-Tepa, December 2009. (Conference paper).
  32. Twumasi, P. IFS Proposal Writing Meeting organized by CREPA, IFS and KNUST. NODA Hotel, Kumasi. October 27-30, 2008. (Attendance).
  33. Twumasi, P. (2009). Sourcing for funding for Postgraduate Research in Ghana and beyond. Presented at GRASAG Research Conference in Ghana, March, 2009. (Conference paper).
  34. Twumasi, P. and Amankwaah, E. 3-Day Workshop on Examination/Registration Software and Online Systems by ICT-KNUST, ICT Centre, Great Hall of KNUST, Kumasi. March 18-20, 2009. (Attendance)
  35. Twumasi, P. Zinnia elegans: a model system for studying cell differentiation and cellulose synthesis. Presented at seminar organized by KCCR-Kumasi, KCCR, KNUST, Kumasi, Ghana, March 2008. (Conference paper).
  36. Twumasi, P. Workshop for Examination Invigilators by College of Science, KNUST, Kumasi, Ghana. November 23, 2007. (Attendance).
  37. Twumasi, P. Potential areas of research collaboration and funding, Rothamsted Research Group in collaboration with Royal Society network Scheme (UK) Conference, Kumasi Centre for Research and Tropical Medicine (KCCR), KNUST, Kumasi, Ghana. May 28, 2008. (Conference paper).
  38. Twumasi, P.; Ieperen, W. van; Kooten, O. van; Emons, A.M.C.; Schel, J.H.N.; and Woltering, E.J., J. Effects of water stress on xylem anatomy, xylem functioning and vase life during growth of two Zinnia elegans cv's. Presented in Fl., USA. August 2004. (Conference paper).
  39. Twumasi, P.; Woltering, E.J.; Ieperen, W. van; Emons, A.M.C. Manipulation of programmed cell death in xylogenic Zinnia elegans suspension cell cultures influences the kinetics and dimensions of tracheary elements produced. In: Plant Biology 2006: Joint meeting of the American Society of Plant Biologists and the Canadian Society of Plant Physiologists, Boston, Massachusetts, USA, 5 -9 August 2006. - Plant Biology Boston MA USA: American Society of Plant Biologists. (Conference paper).
  40. Twumasi, P.; Woltering, E.J.; Ieperen, W. van; and Emons, A.M.C. Manipulation of programmed cell death in xylogenic Zinnia elegans suspension cell cultures influences the kinetics and dimensions of tracheary elements produced. Presented in Boston MA, USA, 2006. (Conference paper).
  41. Twumasi, P.; Ieperen, W. van; Kooten, O. van; Emons, A.M.C.; Schel, J.H.N.; Woltering, E.J.; Ernst, J. (2004). Effects of water stress on xylem anatomy, xylem functioning and vase life during growth of two Zinnia elegans cv's. In: Plant Biology 2004, Annual Meeting, ASPB, Lake Buena Vista, USA, 2004. - Lake Buena Vista, Fl. USA. (Conference paper).
  42. Twumasi, P. van Ieperen, W.; Woltering, E.; Emons, A.M.C.; Schel, J.H.N.; Snel, J.; van Meeteren, U.; and van Marwijk, D. Effect of growing conditions on the vase life of Zinnia elegans cut flowers. 8th International Symposium on Postharvest Physiology of Ornamentals (in conjunction with QualiFlor 2003). Presented in The Netherlands, August 2003. (Conference paper).

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