TY - JOUR A1 - Buaya, Anthony Tumenez A1 - Kraberg, Alexandra A1 - Thines, Marco T1 - Dual culture of the oomycete Lagenisma coscinodisci Drebes and Coscinodiscus diatoms as a model for plankton/parasite interactions T2 - Helgoland marine research N2 - Diatoms are thought to provide about 40% of total global photosynthesis and diatoms of the genus Coscinodiscus are an important, sometimes dominant, cosmopolitan component of the marine diatom community. The oomycete parasitoid Lagenisma coscinodisci is widespread in the northern hemisphere on its hosts in the genus Coscinodiscus. Because of its potential ecological importance, it would be a suitable pathogen model to investigate plankton/parasite interactions, but the species cannot be cultivated on media without its host, so far. Thus, it was the aim of this study to explore the potential of dual culture of host and pathogen in the laboratory and to optimise cultivation to ensure a long-term cultivation of the pathogen. Here, we report successful cultivation of a single spore strain of L. coscinodisci (Isla), on several Coscinodiscus species and strains, as well as the establishment of a cultivation routine with Coscinodiscus granii (CGS1 and CG36), which enabled us to maintain the single spore strain for more than 3 years in 6 cm Petri dishes and 10 ml tissue culture flasks. This opens up the opportunity to study the processes and mechanism in plankton/parasitoid interactions under controlled conditions. KW - Centric diatom KW - Coscinodiscus concinnus KW - C. grani KW - C. radiatus KW - C. wailesii KW - Cultivation KW - Laboratory KW - Oomycota KW - Pathosystem Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/55343 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-553436 SN - 1438-3888 SN - 1438-387X VL - 73 IS - 1 SP - 1 EP - 6 PB - BioMed Central ER -