Isolation and Pathogenicity of Phytophthora Species from Poplar Plantations in Serbia

Forests

卷:9

JustynaA. Nowakowska¹  Tomasz Oszako²  Nenad Keča³  Dragan Karadžić³  Katarzyna Sikora⁴  Zlatan Radulović⁵  Thomas Jung⁶  Tamara Corcobado⁶  Ivan Milenković⁶ 

[1] Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszynski University in Warsaw, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;

[2] Faculty of Forestry, Białystok University of Technology, Marszałka J. Piłsudskiego 1A, 17-200 Hajnówka, Poland;

[3] Faculty of Forestry, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia;

[4] Forest Research Institute-IBL, Braci Leśnej 3, 05-090 Raszyn, Poland;

[5] Institute of Forestry, Belgrade, Kneza Višeslava 3, 11030 Belgrade, Serbia;

[6] Phytophthora Research Centre, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic;

关键词: soilborne pathogens;    pathways;    Populus;    Phytophthora plurivora;    Phytophthora pini;    pathogenicity tests;   

DOI  :  10.3390/f9060330

来源: DOAJ

【 摘 要 】

During a survey in three declining and three healthy poplar plantations in Serbia, six different Phytophthora species were obtained. Phytophthora plurivora was the most common, followed by P. pini, P. polonica, P. lacustris, P. cactorum, and P. gonapodyides. Pathogenicity of all isolated species to four-month and one-year-old cuttings of Populus hybrid clones I-214 and Pánnonia, respectively, was tested using both a soil infestation and stem inoculation test. Isolates of P. polonica, P. × cambivora, P. cryptogea, and P. × serendipita from other host plants were included as a comparison. In the soil infestation test, the most aggressive species to clone I-214 were P. plurivora, P. × serendipita, and P. pini. On clone Pánnonia, P. gonapodyides and P. pini were the most aggressive, both causing 100% mortality, followed by P. cactorum, P. × cambivora, and P. polonica. In the underbark inoculation test, the susceptibility of both poplar clones to the different Phytophthora species was largely similar, as in the soil infestation test, with the exception of P. polonica, which proved to be only weakly pathogenic to poplar bark. The most aggressive species to clone I-214 was P. pini, while on clone Pánnonia, the longest lesions and highest disease incidence were caused by P. gonapodyides. Phytophthora cactorum and P. plurivora were pathogenic to both clones, whereas P. × cambivora showed only weak pathogenicity. The implications of these findings and possible pathways of dispersion of the pathogens are discussed.

【 授权许可】

Unknown