@article{mbs:/content/journal/micro/10.1099/00221287-58-3-391, author = "INGRAM, D. S.", title = "The Susceptibility of Brassica Callus to Infection by Peronospora Parasitica", journal= "Microbiology", year = "1969", volume = "58", number = "3", pages = "391-401", doi = "https://doi.org/10.1099/00221287-58-3-391", url = "https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-58-3-391", publisher = "Microbiology Society", issn = "1465-2080", type = "Journal Article", abstract = "SUMMARY Axenic combinations of Peronospora parasitica and callus of Brassica oleracea var. capitata, Drumhead cabbage, and other Brassica species were established. The fungus grew well in callus culture and sometimes had many of the characteristics of an aggressive parasite, in contrast with its growth habit in intact Brassica cotyledons. The susceptibility of different Brassica callus clones and root organ cultures to P. parasitica was not constant, and results obtained with callus were frequently at variance with results obtained using intact Brassica plant parts.", }