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Einzelsporeninfektion von Sonnenblumen mit Plasmopara halstedii
Author(s) -
Spring O.,
Rozynek B.,
Zipper R.
Publication year - 1998
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1998.tb04757.x
Subject(s) - downy mildew , zoospore , biology , sporangium , sunflower , spore , inoculation , plasmopara viticola , botany , helianthus annuus , horticulture
A technique was developed to select vital zoospores of Plasmopara haistedii after zoosporogenesis for the infection of sunflower leaf disks. Successful infections were performed with samples containing several zoospores originated from a single sporangium as well as with samples containing only one single zoospore. Infections were indicated by spontaneous sporulation at the surface of inoculated sunflower leaf discs and were secured by transfer to whole seedlings. Using this method it was possible to generate unithallic infections and genetically homogenous strains of sunflower downy mildew.