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The UNESCO Biotechnology Educational and Research Center

Omar M. Dar-Issa, Naim M. Iraki , Ralf-Udo Ehlers (2003). Effect of Beauveria bassiana on the invasion and proliferation of the entomopathogenic nematode Heterorhabditis indica inside Galleria mellonella larvae. Insect Pathogens and Insect Parasitic Nematodes, IOBC wprs Bulletin 26 (1) pp. 169-172.

Basma Sandouka, Amani Abu-Sa'da, Omar Dar-Issa, Ralf-Udo Ehlers and Naim Iraki (2003). Effect of heat shock on the penetration and development of infective juveniles of two entomopathogenic nematodes strains Heterorhabditis indica and H. bacteriophora inside Galleria mellonella larvae. Insect Pathogens and Insect Parasitic Nematodes, IOBC wprs Bulletin 26 (1) pp. 173-176.

Omar Dar-Issa and Naim Iraki (2005). Technical sheets no: 2, 7, 9, 10, and 11 in the electronic booklet: Detection methods for viruses of Banana, Citrus, Cucumber, Grape, Potato, Stone Fruits, and Tomato.

Akad Fouad , Eybishtz Assaf , Edelbaum Dagan , Dar-Issa Omar , Iraki Naim  and Czosnek Henryk (2007). Making a friend from a foe: Expressing a GroEL gene from the whitefly Bemisia tabaci in the phloem of tomato plants confers resistance to Tomato yellow leaf curl virus. Arch Virol. V 152 No7: 1323-1339.

  نعيم عراقي، عمر عيسى وبسمة صندوقة. (2007). استخدام النيماتودا الممرضة للحشرات في المكافحة الحيوية. المزارع العدد 22.

Iraki, N., O. Dar-Issa, B. Sandouka, M. Sansour, R. Arafeh, A. Abu-Sa'da, and N. Salah. 2007. The Development of Agricultural Biotechnology Capacities in Palestine through the UNESCO Biotechnology Educational and Training Center at Bethlehem University, p. 487-490. In Z. Xu, J. Li, Y. Xue, and W. Yang (ed.), Biotechnology and Sustainable Agriculture 2006 and Beyond. Springer Netherlands.

Elisabeth Grund, Omar Darissa and Guenter Adam (2010). Application of FTA Cards to Sample Microbial Plant Pathogens for PCR and RT-PCR. J Phytopathol.  158: 750–757.

Darissa, O., Willingmann, P., and G. Adam (2010). Optimized approaches for the sequence determination of double-stranded RNA templates. Journal of Virological Methods 169:397-403.

Darissa, O., Willingmann, P., Schaefer W., and G. Adam (2011).. A novel double-stranded RNA mycovirus from Fusarium graminearum; Nucleic acid sequence and genomic structure.  Arch. Virol. 156 (4): 647-658.

Darissa, O., and N. Iraki (2012). Using the Anchored Microsatellite Primed Polymerase Chain Reaction (AMP-PCR) Technique to Study Genetic Diversity in Four Local Tomato (Lycopersicum esculentum) Cultivars in Palestine. Bethlehem University Journal, Vol. 30, accepted.

Omar Darissa, Günter Adam, and Wilhelm Schäfer. (2012). A dsRNA mycovirus causes hypovirulence-associated traits in Fusarium graminearum. European Journal of Plant Pathology, Volume 134,  pp 181-189.

Omar M. Darissa and Naim M. Iraki (2013). In vivo and In vitro interactions between two entomopathogens: the bacterium Serratia marcescens and the nematode Heterorhabditis indica. Russian Journal of Nematology, 2013, 21 (2), 83-91.

Omar M. Darissa and Naim M. Iraki (2014). Antagonistic interactions between the biocontrol agents Beauveria bassiana and Heterorhabditis indica. Russian Journal of Nematology, accepted.

Omar M. Darissa, Salwa Rajabi, and Naim M. Iraki (2013). Genotyping of sixteen grapevine (Vitis vinifera) varieties in Palestine using microsatellite markers. Bethlehem University Journal, Vol 32. 

Omar M. Darissa and Naim M. Iraki (2014). Molecular Identification of Six Steinernema Isolates and Characterization of their Internal Transcribed Spacers Regions. Jordan Journal of Biological Sciences, 7 (1), 31-34.



Dr. Omar Darissa

Omar DarIssa, PhD

Director and
Principal Investigator

Biology Department

Tel: +972-2-2765404
Tel: +972-2-2741241, ext 2224
Fax: +972-2-2744440


Bethlehem University Foundation
Phone: +1-240-241-4381
Fax: +1-240-553-7691
Beltsville, MD USA
Bethlehem University in the Holy Land
Phone: +972-2-274-1241
Fax: +972-2-274-4440
Bethlehem, Palestine