The Czech National Programme on Conservation and Utilization of Microbial Genetic Resources Important for Agriculture

Introduction Animal Pathogenic Microorganisms Phytopathogenic Microorganisms Olomouc Hop Pathogens Industrially Utilizable Microorganisms Dairy Microorganisms
Brewery Microorganisms Phytopathogenic Viruses Fruit Trees and Small Fruit Viruses Potato Viruses Ornamental Plant Viruses Phytopathogenic Bacteria
Rhizobia Rusts and Powdery Mildew Fungi CCF Phytopathogenic Fungi CRI Phytopathogenic Oomycetes Edible and Medicinal macromycetes
Basidiomycetes Invertebrate Crop Pests and their Natural Enemies Stored-Product Pests, Mites and Fungi Food Technologies CCM Dairy and Bakery Contaminants Clavicipitaceae

  Czech Collection of Phytopathogenic Oomycetes


•    History
The collection was established in 2005 under the leadership of Karel Cerny and was admitted in 2012 as a member of The National Programme on Conservation and Utilization of Genetic Resources of Microorganisms.

•   Characterization of collection
There are approx. 312 strains of approx. 29 oomycetous taxa preserved which are belonging to Phytophthora and (23 taxa) Pythium (6 taxa) in the accessible part of the collection. The other 400 strains are deposited in the non-public section of the collection. The isolates were acquired from many various plant hosts including forest, ornamental, and fruit trees as well as other hosts from various other environments (riparian and forest stands, parks, urban greenery, orchards, public gardens, gardening centres, ornamental and forest nurseries etc.). The collection is operated by Marcela Mrázková (custodian), Markéta Hejná (molecular determination) and Liliya Fedusiv (technician).

•    Methods of conservation
Individual isolates are maintained on agar slants (OA agar) in vials in a refrigerator at a temperature of about 12 ° C in four tubes. Their condition is regularly monitored and the strains are regularly re-inoculated at intervals of 1-2 years.

Overview of deposited taxa
1.    Phytophthora ×alni (Brasier & S.A. Kirk) Husson, Ioos & Marçais
2.    Phytophthora uniformis (Brasier & S.A. Kirk) Husson, Ioos & Aguayo
3.    Phytophthora bilorbang Aghighi & T.I.Burgess
4.    Phytophthora cactorum (Lebert & Cohn) J. Schröt.
5.    Phytophthora cambivora (Petri) Buisman
6.    Phytophthora cinnamomi Rands
7.    Phytophthora citrophthora (R.E. & E.H. Smith) Leonian
8.    Phytophthora cryptogea Pethybridge & Lafferty
9.    Phytophthora gallica T. Jung & J. Nechwatal
10.    Phytophthora gonapodyides (H.E. Petersen) Buisman
11.    Phytophthora gregata T. Jung, Stukely & T.I. Burgess
12.    Phytophthora hedraiandra De Cock & Man in 't Veld
13.    Phytophthora lacustris Brasier, Cacciola, Nechwatal, Jung & Bakonyi
14.    Phytophthora megasperma Drechsler
15.    Phytophthora multivora P.M. Scott & T. Jung
16.    Phytophthora palmivora (E.J. Butler) E.J. Butler
17.    Phytophthora plurivora T. Jung & T.I. Burgess
18.    Phytophthora polonica Belbahri, E. Moralejo, Calmin & Oszako
19.    Phytophthora ramorum Werres, De Cock & Man in 't Veld
20.    Phytophthora rosacearum (H.E. Petersen) Buisman
21.    Phytophthora syringae (Kleb.) Kleb.
22.    Phytophthora taxon Raspberry
23.    Phytophthora taxon Walnut

1.    Pythium citrinum B. Paul
2.    Pythium helicoides Drechsler
3.    Pythium chamaehyphon Sideris
4.    Pythium intermedium de Bary
5.    Pythium ultimum Throw.
6.    Pythium vexans de Bary


The collection aims for the preservation of genetic diversity of important phytopathogenic and other oomycetes in the Czech Republic for scientific and other purposes (tests of pathogenicity and host resistance, testing and development of control measurements, reference studies in science and phytosanitary services, systematics, education, etc.)


Silva Tarouca research institute for landscape and ornamental  gardening
Květnové nám. 391
252 43 Průhonice, Czech Republic
 Ing. Marcela Mrázková, e-mail:, phone: +420 296 528 234

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