Premium
Studies on the Diagnosis of Bacterial Ring Rot of Potatoes
Author(s) -
Zeller W.,
Xie Y.
Publication year - 1985
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.1439-0434.1985.tb00796.x
Subject(s) - inoculation , biology , pathogen , bacteria , corynebacterium , horticulture , suspension culture , microbiological culture , microbiology and biotechnology , suspension (topology) , cell culture , mathematics , homotopy , pure mathematics , genetics
The eggplant test, described by O lsson (1976) and L elliott and S ellar (1976) as a means of detecting Corynebacterium sepedonicum , the causal agent of bacterial ring rot, has been tested for its reliability. Eggplants inoculated with a pure suspension of bacterial cells developed typical chlorotic symptoms at a minimum concentration of 2 × 10 3 cells/ml inoculum. Whereas with an inoculum which consisted of potato tissue equally mixed with the bacterial suspension, the first symptoms developed at a concentration of 10 4 cells/ml. Reisolation of the pathogen by the IFAS‐test or on YDC‐medium was possible following innculation at a concentration of 2 × 10 3 cells/ml. It was mostly possible to isolate the bacteria in pure culture. Further solanaceous host species tested in comparison with the eggplant did not develop typical symptoms following inoculation with C. sepedonicum . On this account, the eggplant test should currently be considered as the most suitable biological assay to detect C.sepedonicum .