Thomas Hohn

Thomas Hohn

Thomas Hohn grew up in Austria and studied at the Max Planck Institute in Tübingen, Germany. He then performed postdoctoral studies at Yale and later at Stanford, USA. He started his independent research at the Biozentrum in Basel before joining the FMI as a group leader in 1978, where he continued to work until his retirement in 2003. 

With his group, Thomas made fundamental discoveries in virology, originally working on bacteriophages and later focusing on plant viruses.

During the heyday of plant research at FMI in the 1980s, Thomas, in collaboration with the groups of his wife, Barbara Hohn, and Ingo Potrykus, established protocols for transferring foreign genes to plants. These protocols, and the promoters his group designed for high-level gene expression, are landmark contributions to the technology for genetically modifying plants that are used world-wide for crop improvement. 

Later in his career, Thomas focused on plant defenses against virus infection. Working on Cauliflower Mosaic Virus, he discovered special viral translation strategies. He also contributed to establishing the role of Dicer-like enzymes in the massive production of small, silencing RNAs representing virus DNA. 

For many years, he was actively involved in the Indo-Swiss Collaboration in Biotechnology project, working together with Indian scientists to apply biotechnology for the improvement of pulses and cassava for use by subsistence farmers.

After his retirement, Thomas continued to run a laboratory at the Botanical Institute, University of Basel for several years. He also remained an active member of the FMI community, regularly attending our seminars and institute events. He was a fan of the outdoors and loved different cultures and travelling the world. 

Thomas Hohn passed away on November 9, 2023. 

Read FMI obituary 

Sanfaçon H, Hohn T (1990) Proximity to the promoter inhibits recognition of cauliflower mosaic virus polyadenylation signal

Nature 346:81-84

Sanfaçon H, Brodman P, Hohn T (1991) A dissection of the cauliflower mosaic virus polyadenylation signal

Genes Dev 5:141-149

Hohn T (1969) Role of RNA in the assembly process of bacteriophage fr

J Mol Biol 43:191-200

Hohn B, Hohn T (1974) Activity of empty, headlike particles for packaging of DNA of bacteriophage lambda in vitro

Proc Natl Acad Sci USA 71:2372-2376

Fütterer J, Kiss-László Z, Hohn T (1993) Nonlinear ribosome migration on cauliflower mosaic virus 35S RNA

Cell 73:789-802

Kiss-László Z, Blanc S, Hohn T (1995) Splicing of cauliflower mosaic virus 35S RNA is essential for viral infectivity

EMBO J 14:3552-3562

Wurtz M, Kistler J, Hohn T (1976) Surface structure of in vitro assembled bacteriophage lambda polyheads

J Mol Biol 101:39-56

Hohn T, Wurtz M, Engel A (1978) Sevenfold rotational symmetry of a protein complex

J Ultrastruct Res 65:90-93

Pooggin MM, Hohn T, Fütterer J (1998) Forced evolution reveals the importance of short open reading frame A and secondary structure in the cauliflower mosaic virus 35S RNA leader

J Virol 72:4157-4169

Leclerc D, Chapdelaine Y, Hohn T (1999) Nuclear targeting of the cauliflower mosaic virus coat protein

J Virol 73:553-560

Hohn T, Hohn B, Engel A, Wurtz M, Smith PR (1979) Isolation and characterization of the host protein groE involved in bacteriophage lambda assembly

J Mol Biol 129:359-373

Park H-S, Hohn T, Ryabova LA (2001) A plant viral "Reinitiation" factor interacts with the host transcriptional machinery

Cell 106:723-733

Pfeiffer P, Hohn T (1983) Involvement of reverse transcription in the replication of cauliflower mosaic virus:a detailed model and test of some aspects

Cell 33:781-787

Brisson N, Paszkowski J, Penswick JR, Gronenborn B, Potrykus I, Hohn T (1984) Expression of a bacterial gene in plants by using a viral vector

Nature 310:511-514

Richert-Poggeler KR, Noreen F, Schwarzacher T, Harper G, Hohn T (2003) Induction of infectious petunia vein clearing (pararetro) virus from endogenous provirus in petunia

EMBO J 22:4836-4845

Pooggin MM, Shivaprasad PV, Veluthambi K, Hohn T (2003) RNAi targeting of DNA virus in plants

Nature Biotechnol 21:131-132

Grimsley N, Hohn T, Davies JW, Hohn B (1987) Transformation of maize plants by Agrobacterium tumefaciens

Nature 325:177-179

De Zoeten GA, Penswick JR, Horisberger MA, Ahl P, Schultze M, Hohn T (1989) The expression, localization, and effect of a human interferon in plants

Virology 172:213-222

Trinks D, Rajeswaran R, Shivaprasad PV, Akbergenov R, Oakeley EJ, Veluthambi K, Hohn T, Pooggin MM (2005) Suppression of RNA silencing by a geminivirus nuclear protein, AC2, correlates with transactivation of host genes

J Virol 79:2517-2527

Blevins T, Rajeswaran R, Shivaprasad PV, Beknazariants D, Si-Ammour A, Park HS, Vazquez F, Robertson D, Meins F Jr, Hohn T, Pooggin MM (2006) Four plant Dicers mediate viral small RNA biogenesis and DNA virus induced silencing

Nucl Acids Res 34:6233-6246

Bonneville JM, Sanfaçon H, Fütterer J, Hohn T (1989) Posttranscriptional transactivation in cauliflower mosaic virus

Cell 59:1135-1143

PhD students

Hyun-Sook Park (2001-2003)
Orlene Guerra Peraza (1996-2002)
Prasanna Bhomkar (2001)
Vladimir Zeyenko (1996-2001)
Muriel Haas (2001)
Aletta Karsies van Eeden (1996-2001)
Xiaoyuan He-Xu (1995-2000)
Diana Dominguez-Rodriguez (1991-1997)
Nania Scharer-Hernandez (1992-1997)
Gang Chen (1992-1996)
Axel Himmelbach (1991-1996)
Zsuzsanna Kiss-Laszlo (1991-1995)
Carolien Zijlstra (1989-1993)
Barbara Pisan (1984-1991)
Zdena Nicola-Koukolikova (1981-1985)
Christoph Seeger (1980-1982)

Postdoctoral fellows

Rashid Akbergenov (2002-2003)
Hyun-Sook Park (1997-2003)
Mikhail Pooggin (1999-2003)
Katja Richert-Poeggeler (2000-2003)
Kappei Kobayashi (1999-2003)
Livia Stavolone (1998-2002)
Etienne Herzog (1996-2001)
Lyubov Ryabova (1996-2001)
Martin Drucker (2001)
Karin Wiebauer (2000-2001)
Helen Mary Rothnie (1990-2001)
Maja Hemmings-Mieszczak (1992-2000)
Elena M. Karger (2000)
Maxim Skulachev (1998-2000)
Denis Leclerc (1994-1998)
Saule Zhanybekova (1996-1998)
Jean-Luc Mougeot (1995-1997)
Yvan Chapdelaine (1992-1996)
Waltraud Schmidt-Puchta (1990-1995)
Barbara S. Ink (1991-1993)
Marc De Tapia (1988-1992)
Jean-Marc Bonneville (1985-1991)
Johannes Futterer (1984-1991)
Karl Gordon (1987-1990)
Helene Sanfacon (1986-1990)
Monica Torruella (1986-1990)
Thomas Hein (1986-1988)
John R. Penswick (1985-1988)
Ervin Balazs (1984-1986)
Maciej Pietrzak (1981-1986)
Linda K. Dixon (1982-1984)
Hideaki Shinshi (1982-1984)
Barbara Hohn (1978-1981)
Philipp Mekler (1980-1981)
Gabriele Wystup(-Ewald) (1978-1981)

Technical/Research associates

Matthias Mueller (1986-2003)
Sandra Pauli (1993-2003)
David William Kirk (1996-2002)
Diana Lewetag (1993-1996)
Peter Sudbeck (1993-1994)
Silke Rieke (1991-1992)
Gundula Pehling (1988-1991)
Martin Nageli (1988-1990)
Rupa M. Parmar (1988)
Regina Imm(Hubler-) (1984-1987)
Thomas Nyffenegger (1983-1986)
Jean-Philippe Roulet (1984-1986)
Sylvia Wirth (1980-1984)
Jacqueline Moser (1982-1983)
Philipp Zwicky (1983)
Hanny Grob(Schmid-) (1978-1982)
Doris Ruegg (1979-1981)
Helgard Adelsberger (1979)

Undergraduates

Muhammad Afzal (2002-2003)
Faiza Noreen (2002-2003)
Daniela Schmitter (2002-2003)
Nathalie Rederstorff (2002)
Annie Boivin (2002)
Hyun-Sook Park (1997-2001)
Andrea Cruz (2000)
Evelyn Meier (1996-1997)
Lena Burri (1995-1996)
Marcela Bliffeld (1993-1994)
Peter Bormann (1992-1993)
Afaf El Kheir-Steiert (1992-1993)
Jens Reimer (1992-1993)
Martina Blok (1992)
Carl Joachim Neumann (1992)
Jacqueline Reid (1991-1992)
Peter Brodman (1988-1990)
Stefan H. Karlsson (1988-1990)
Marijka Driesen (1988)
Gilbert Delley (1983-1984)
Kim Yrjala (1981)

Visiting scientists

Rajendran Rajeswaran (2003)
Saule Zhanybekova (2002-2003)
Shiva Prasad (2002)
Suchandra Deb Roy (2002)
Neera Bhalla-Sarin (2002)
Arnis Druka (1997)
Anatoli Lee (1996-1997)
Vladimir Zeenko (1995)
Mikhail Pooggin (1992-1993)
Josef Vlasak (1992)
Demissev Beyene (1991)
Rosa-Maria Benito-Moreno (1989-1990)
Pedro Oramas (1988-1990)
Jun Wang (1987-1990)
Gustaaf De Zoeten (1987-1988)
Jose A. Martinez-Izquerdo (1983-1988)
Amla Batra (1985-1986)
Normand Brisson (1982-1984)
Isabelle Konig (1981-1983)
John R. Penswick (1982)
Fritz Kreuzaler (1980-1981)
Benjamin Burr (1980)
Amos Oppenheim (1979)