July 2013 Committee Report to the ISPP Executive and Council
Rhizoctonia Subject Matter Committee (RSMC)
International Society for Plant Pathology
(Professor Lodovica Gullino, President)
Committee on the (Rhizoctonia Subject Matter Committee)
Subject Matter Committee. Rhizoctonia Subject Matter Committee
Established: August 1993
Web address for SMC. http://www.ag.ndsu.nodak.edu/aginfo/barleypath/rhizoc/
Note: this will change in 2014.
Name (s) of personnel preparing report. Suha Jabaji, Chair of SMC
Nominated Officers. Is the list for your SMC on the ISPP website correct? YES
Suha Jabaji, Chair, McGill University, Quebec, CANADA
Marc Cubeta, Co-Chair, North Carolina State University (NCSU), North Carolina, USA
Rita Grosch- Institute of Vegetable and ornamental Crops (IGZ), Berlin, Germany
Takeshi Toda-Akita Prefectural University, Akita, JAPAN
Honglian Li, Henan Agricultural University, Zhengzhou, Henan, CHINA
Ning Zhang, Rutgers, The State University of New Jersey, New Jersey, USA
Mailing list of members: more than 300
Committee Meetings: Short meetings are done with some members once a year via
either skype or email. Additionally, during ICPP meetings, committee members meet
during their satellite meetings and discuss issues dealing with finance, future meetings,
and research topics.
WEBSITE: http://www.ag.ndsu.nodak.edu/aginfo/barleypath/rhizoc/ (will be updated and
address will change)
History and Establishment
The International Rhizoctonia Committee was established in Montreal in 1993 and since
then has been active not only promoting the exchange of information on research relating
to pathogenic and non-pathogenic Rhizoctonia species complex, but also encouraging
international collaborative research projects among colleagues working on the various
aspects of Rhizoctonia Research.
Subject Matter Committee focus issues:
Focus on recruiting young researchers who are passionate and can serve and lead
Working on updating/reviving the webpage of RSMC
Working on a conceptual framework and experimental tools to better delineate and
Working to develop improved and novel strategies for managing Rhizoctonia diseases
Activities Past and Future
1995. Based on the first International workshop in 1995, a book entitled Rhizoctonia
Species: Taxonomy, Molecular Biology, Ecology, Pathology and Control edited by B.
Sneh, S. J.-Hare, S. Neate and G. Dijst, was published in 1996 by Kluwer academic
publishers. This book was written by experts in various fields of Rhizoctonia, some of
whome were invited speakers at the first Symposium.
2009. A consortium consisting of North American and international scientists in the
Rhizoctonia community became actively involved in a collaborative project to obtain a high
quality complete genome sequence of the soil fungus R. solani anastomosis group 3 (AG-
3), strain Rhs1AP. This fungus is a competitive saprobe and an important pathogen of
food crops in the plant family Solanaceae. In addition to its economic importance as a
plant pathogen, the fungus and its closely related species can often form beneficial
associations with early diverging land plants, lichens, and orchids. The genome size is at
least 80 Mb based on estimates from a recently constructed optical map that suggests
there are 24 chromosomes ranging in size from 1.0 to 6.2 Mb. Repetitive sequences in the
genome have been identified and microsatellite-based genetic markers for population
genetics studies are available to the community on the website: http://www.rsolani.org.
2013. Discussions are on-going about a laboratory manual focusing on current omics
methods used to decipher the taxonomy, pathology and biology of Rhizoctonia solani.
The IRC had held 4 International Workshops focusing on various aspects of Rhizoctonia
research. These work shops are intended to distribute among people interested in
Rhizoctonia, relevant information and news from different countries related to Rhizoctonia
1st RSMC: Noordwijkerhout, The Netherlands, June 27-30, 1995
2nd RSMC: Edinburgh, Scotland, August, 1998
3rd RSMC: Taichung, Taiwan, August 2000.
4th RSMC: Berlin, June 2009
The 5th RSMC will be Zhengzhou, China, August 21-24, 2013
The RSMC is non-profit organization. It has no membership fees and all activities are
carried out on volunteer basis. Workshops become the focal point for discussion and
decision-making on research topics for future workshops.
Submitted by Suha Jabaji, Chair, Email: email@example.com