Prof.Dr.Ir. Susamto S., M.Sc.

Plant Virology

Academic Carrer and Professional Attainment

  • Ir. (Plant Pathology, Universitas Gadjah Mada, 1979)
  • M.Sc. (Plant Pathology; Saga University, Japan, 1983)
  • Ph.D. (Agric.; Tokyo University of Agriculture, Japan, 1990)
  • Post DOC (Visiting Scientist, Saga University, Japan, 1991)
  • Professor in Plant Pathology (Universitas Gadjah Mada, 2003)

The Indonesian Phytopathological Society (Secretary: 1991-1993 & Secretary General: 1996-2001)
The Asian Association of Society for Plant Pathology (Vice President: 2000-2007 & President: 2008-2011)

Work Experience

1981-2003: Lecturer in Plant Pathology

2003-present: Professor in Plant Pathology

1990-1993: Chairman of Laboratory Plant Virology

1996-2000: Chairman of Department of Entomology and Plant Pathology

1997-2001: Director of Central for Japanese Study

1995-2000: Chairman of Laboratory of Agricultural Biotechnology

1996-2000: Assistance Director of PIU-OECF (JBIC) Project

2000-2008: Dean Faculty of Agriculture

2011-2013: Board of Trustees UGM (Member)

2012-2014: Board of Professor UGM Chairman

2009-2017: Board of Advisory Gadjah Mada University Cultural Centre (Dewan Pembina Pusat Kebudayaan Universitas Gadjah Mada)



Lecture Subjects
•Introduction to Agriculture Science (S1)
• Fundamental on Plant Pathology (S-1)
• Fundamental on Plant Protection  (S-1)
• Introduction to Insect Pathology (S-1)
• Introduction to Plant Virology (S-1)
• Fundamental Virology (S2)
• Advance Plant Virology (S-2)
• Advance Plant Pathology (S-2)

  • Biotechnology for Crop Protection (S-2)
  • Philosophy of Science and Riset (S-2)

Research & Extension Interest
• Immunological Techniques for Rapid Detection of Plant Virus
• Diagnosis of Plant Virus
• Study an Antiviral Subtances from Tropical Plants


  1. Kulsum, U., S. Hartono, S. Sulandari, & S. Somowiyarjo. 2016. Molecular identification of Cowpea mild mottle virus on soybean in Jawa. Indonesian Journal of Phytopathology 13: 224-229.
  2. Nurviani, S. Sulandari, S. Somowiyarjo & S. Subandiyah. 2016. Detection of seed bulb viruses on shallot cultivar Biru Bantul. Indonesian Journal of Phytopathology 12: 185-190.
  3. Bande, L.O.S., B. Hadisutrisno, S. Somowiyarjo, B.H. Sunarminto & A. Wahab. 2016. Correlation of physical and chemical soil characteristic with intensity of foot root disease of black pepper. J. Litri 22: 63-70.
  4. Rahmitasari, D., S. Somowiyarjo, S. Hartono. 2016. Molecular identification of mosaic-causing virus in nine sugarcane varieties. Indon. J. Plant Protec. 20: 65-71.
  5. Mahfut, M., B.S. Daryono, T. Joko, & S. Somowiyarjo. 2016. Survey on the occurence of Odontoglossum ringspot virus (ORSV)  infecting nature tropical orchid in Indonesia. Indon. J. Plant Protec. 20: 1-6.
  6. Somowiyarjo, S., S. Hartono, S. Sulandari & S.U. Putri, 2016. Molecular identification of Tobacco mosaic virus  on orchid plants in Sleman, Yogyakarta. Indonesian Journal of Phytopathology 12: 69-73.
  7. Daryono, B.S., Y. Alaydrus, K.T. Natsuaki & S. Somowiyarjo. 2016. Inheritance and Resistance of Kyuri green mottle mosaic virus in melon. SABRAO Journal of Breeding and Genetics 48: 33 -40.
  8. Suprihanto, S. Somowiyarjo, S. Hartono & Y. A. Trisyono. 2015. Identification and molecular diversity of Rice rugged stunt virus and Rice grassy stunt virus in Java, Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR) 24: 374-386.
  9. Fajarfika. R., S. Hartono, S. Sulandari & S. Somowiyarjo. 2015. Molecular detection caused yellowing disease Tomato chlorosis virus and Tomato infectious chlorosis virus on tomatoes. Ind. J. Plant Protec. 19: 80-88.
  10. Kusumaningrum, F., S. Hartono, S. Sulandari & S. Somowiyarjo. 2015. Double infections of Begomovirus and Crinivirus on tomato plants at Magelang Regency, Central Java. Indon. J. Plant Protec. 19: 60-64.
  11. Bande, L.O. S., B. Hadisutrisno & S. Somowiyarjo. 2015. Distribution pattern and intensity of pepper foot root disease in Southeast Sulawesi. Journal Agrotechnos 4: 58-65.
  12. Somowiyarjo, S., S. Sulandari, S. Hartono, Y.B. Paradisa, & T.M. Aji. 2014. Etiology of shoot twig malformation on cocoa at Kulon Progo, Special Province of Yogyakarta and Segayung, Central Java. J. Plant Protec. 18: 95-102.
  13. Wilisiani, F., S. Somowiyarjo & S. Hartono. 2014. Molecular identification of virus causing leaf curl disease Bantul isolate on Melon. J. Plant Protec. 18: 47-54.
  14. Joko, T., M.H. Koentjoro, S. Somowiyarjo, M.S. Rohman, A. Liana, & N. Ogata. 2012. Response of rhizobacterical communities in watermelon to infection with Cucumber green mottle mosaic virus as revealed by cultivision-dependent RISA. Archieves of Phytopathology and Plant Protection 45: 1810-1818.
  15. Somowiyarjo, S. 2011. Plant disease problem on smallholder farms in Asia. Australasian  Plant Pathology 40: 318-319.
  16. Daryono, B.S., S. Somowiyarjo & K.T. Natsuaki. 2006. Biological characterization and complete nucleotide sequence of coat protein of Kyuri green mottle mosaic virus isolated from Angled Loofah in Indonesia. Jour. Agric. Sci. Tokyo Univ. of Agric. 51: 45-52.
  17. Daryono, B.S., S. Somowiyarjo & K.T. Natsuaki. 2005. Biological and molecular characterization of melon-infecting Kyuri green mottle mosaic virus in Indonesia. J. Phytopathology 153: 588-595.
  18. Daryono. B.S., S. Somowiyarjo & K.T. Natsuaki. 2005. Screening for resistance to Kyuri green mottle mosaic virus in various melons. Plant Breeding 124: 487-490.
  19. Furuya, N., S. Somowiyarjo & K.T. Natsuaki. 2004. Virus detection from local banana cultivars and the first molecular characterization of Banana bunchy top virus in Indonesia. J. Agri. Sci. Tokyo Univ. of Agric. 49: 75-81.
  20. Daryono, B.S. S. Somowiyarjo & K.T. Natsuaki. 2003. New source of resistance to Cucumber mosaic virus in melon. SABRAO Journal of Breeding and Genetics 35: 19-26.
  21. Subandiyah, S., S. Somowiyarjo, T. Fukatsu, N. Nikoh, & S. Tsuyumu. 2000. Complex endosymbiotic microbiota of the citrus psyllid Diaphorina citri (Homoptera: Psylloidea). Zoological Science 17: 983-989.
  22. Somowiyarjo, S., H. Haryanto & S. Wening. 2000. The use of monoclonal antibodies in the Immunoassay for detecting Baculovirus oryctes. Indon. J. Plant Protec. 6: 82-90.
  23. Joko. T., S. Subandiyah & S. Somowiyarjo. 2000. The role of extracelluler protein on the pathogenicity of Xanthomonas campestris pv. citri.  Indon. J. Plant Protec. 6: 32-38.
  24. Kobayashi, J. & S. Somowiyarjo. 1995. Properties of Baculovirus oryctes isolated in Indonesia. Indon. J. Plant. Protec. 1: 41-46.
  25. Somowiyarjo, S., Y.B. Sumardiyono, S. Hartono & Triharso. 1995. Propagation and purification Baculovirus oryctes Huger. Indon. J. Plant. Protec. 1 (1): 38-49.
  26. Somowiyarjo, S. 1993. Detection and identification of cucurbit viruses in Yogyakarta. Agric. Science 3: 657-664.
  27. Somowiyarjo, S., N. Sako & F. Nonaka. 1990. Production of monoclonal antibodies to three Potyviruses in cortunix quil. J. Virological Methods 28: 125-132.
  28. Somowiyarjo, S., N. Sako & F. Nonaka. 1990. Production and characterization of monoclonal antibodies to Watermelon mosaic virus 2. Ann. Phytopath. Soc. Japan 56: 541-548.
  29. Sako, N., T. Maeda, H. Kawagoe, S. Somowiyarjo & T. Miura. 1989. Detection of causal viruses in cucurbits plants using monoclonal and polyclonal antibodies. Bulletin of the Faculty of Agriculture, Saga University. 117-123 p.
  30. Somowiyarjo, S., N. Sako & F. Nonaka. 1989. Current progress on the detection of plant viruses, with special reference on Zucchini yellow mosaic virus. Agric. Sci. 4: 225-236.
  31. Somowiyarjo, S., N. Sako & F. Nonaka. 1988. The use monoclonal antibody for detecting Zucchini yellow mosaic virus. Ann. Phytopath. Soc. Japan 54: 436-443.
  32. Somowiyarjo, S., N. Sako & F. Nonaka. 1987. Detection of Zucchini yellow mosaic virus by latex flocculation and protein a-coated latex-linked antisera tests. Ann. Phytopath. Soc. Japan 53: 266-268.
  33. Somowiyarjo, S., N. Sako & F. Nonaka. 1986. Comparison of two Indirect Enzyme-linked Immunosorbent Assay procedures for detecting Zucchini yellow mosaic virus. Ann Phytopath. Soc. Japan 52: 653-659.
  34. Ohtsu, Y., N. Sako & S. Somowiyarjo. 1985. Zucchini yellow mosaic virus isolated from pumpkin in Miyako and Yaeyama islands, Okinawa, Japan. Ann. Phytopath. Soc. Japan 51: 234-237.
  35. Somowiyarjo, S., N. Sako & F. Nonaka. 1985. Application of non-precoated Indirect Enzyme-linked Immunosorbent Assay for detecting Zucchini yellow mosaic virus. Ann. Phytopath. Soc. Japan 51: 569-575.


  1. Somowiyarjo, S. 1996. Prospects of and Need for Biotechnology for Development  of Forest Pest Management in Indonesia. Proceeding International Workshop BIO REFOR, Bangkok. 168-170 p.
  2. Somowiyarjo, S., Suryanti & B. Hadisutrisno. 2000. Immunoassay for Phytophthora palmivora Using Polyclonal and Monoclonal Antibodi. Proceedings the First Asian Conference on Plant Pathology, August 25-28, 2000 Beijing, China. 60-61 p.
  3. Akin, H.M., S. Somowiyarjo & Y.B. Sumardiyono. 1994. Production of Virus-free Garlic. Proceedings of the Seminar on Biotechnology for Agricultural Viruses, Gadjah Mada University, Yogyakarta, August 15-16, 1994. 94-103 p.
  4. Suryanti, S. Hakam, & S. Somowiyarjo. 1993. Pengaruh Penggunaan Fungisida Terhadap Populasi dan Infeksi Jamur Mikoria Vesikular Arbuskular (MVA) pada Bawang Putih. Risalah Kongres Nasional XII dan Seminar Ilmiah Perhimpunan Fitopatologi Indonesia, Yogyakarta, 6-8 September 1993. 618-624 p.

Scientific Posters


  1. Somowiyarjo, S. 2015. Cross Cultural Fertilization dan Kritik Budaya. Dalam: Rukmana, A., A. Candra, B. Purwanto, B. Agustono, B. Sudjatmiko, D. Candraningrum, D. Kwartsnada, E. Lembong, N.A. Arsuka, R. Gerung, S. Mauludi, S. Tan, St. Sularto, S. Somowiyarjo, T. Abdullah, Y.A. Piliang & Y. Latif. Penyerbukan Silang Antarbudaya. PT Elex Media Komputindo, Jakarta. 185-187 p*).
  2. Somowiyarjo, S. 2011. Dukungan Perlindungan Tanaman dalam Membangun Kedaulatan Pangan. Dalam: Yuwono, T., S. Widodo, D.H. Darwanto, Masyhuri, D. Indradewa, S. Somowiyarjo & S.H. Hariadi. Pembangunan Pertanian Membangun Kedaulatan Pangan. Gadjah Mada University Press, Yogyakarta. 315-382 p*).
  3. Somowiyarjo, S. 2010. Waspadai Kontaminasi Racun Patogen Pasca Panen pada Pangan dan Pakan. Dalam: Indriati, E (Editor). Kanjeng Ratu Kidul: Jangan Salahkan Aku!!! Tulisan Ilmiah Populer Guru Besar Universitas Gadjah Mada. Gadjah Mada University Press, Yogyakarta. 97-99 p*).
  4. Tohari, S. Somowiyarjo & E. Martono. 2010. Budidaya Pangan Utama. Penerbit Universitas Terbuka, Jakarta*).
  5. Somowiyarjo, S. 2006. Mengoptimalkan Pengendalian Penyakit Tumbuhan dalam Produksi Pangan yang Hemat Energi. Dalam: Sutanto, J. (Editor) & Tim. Revitalisasi Pertanian dan Dialog Peradaban. PT Kompas Media Nusantara, Jakarta. 346-357 p*).
  6. Triharso, S. Somowiyarjo, S. Sulandari & S. Hartono. 1998. Plant Viruses in Indonesia. In: D. Murayama, H.O. Agrawal, T. Inoue, I. Kimura, E. Shikata, K. Tomaru, T. Tsuchizaki & Triharso. Plant Viruses in Asia. Gadjah Mada University Press, Yogyakarta. 287-346 p.



• Identification virus on cocoa, sugarcane, rice, and banana
• Inhibitory activity of extract of several tropical plants on plant virus infection

Note: *) in Indonesia language