title: In vitro growth response of Phytophthora cactorum, P. nicotianae and P. × pelgrandis to antibiotics and fungicides.
abstract: The reactions of isolates of Phytophthora cactorum, P. nicotianae and P. × pelgrandis to metalaxyl, mancozeb, dimethomorph, streptomycin and chloramphenicol were tested to obtain information about the variability of resistance in these pathogens. Distinct genetic groups showed significant differences in resistance to all tested substances except streptomycin. In response to streptomycin, the growth inhibition rates of distinct groups did not differ significantly. The most remarkable differences were detected in the reactions to chloramphenicol and metalaxyl. Discriminant analysis evaluating the effect of all substances confirmed the differences among the groups, which are in agreement with the differences revealed by earlier DNA analyses.
authors.affiliation: Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic. matej.panek@seznam.cz.|Crop Research Institute, Drnovská 507/73, 161 06, Praha 6, Czech Republic. matej.panek@seznam.cz.
authors.forename: M
authors.identifier: http://orcid.org/0000-0002-7278-7207
authors.initials: M
authors.lastname: Pánek
authors.affiliation: Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic.
authors.forename: M
authors.initials: M
authors.lastname: Tomšovský
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D005659:Fungicides, Industrial / Q000494:pharmacology*; D010838:Phytophthora / Q000187:drug effects* / Q000235:genetics / Q000254:growth & development* / Q000302:isolation & purification; D010935:Plant Diseases / Q000469:parasitology*; D014026:Nicotiana / Q000469:parasitology*
chemical_list: D000900:Anti-Bacterial Agents; D005659:Fungicides, Industrial
keywords: Chemical control; Discriminant analysis; Oomycetes; Population