Bacteriovorus Vorticella : Symbiotic, commensal or parasites ???

Vorticella , a genus of peritrich protozoan. It is one of the very first protists seen by Antony van Leeuwenhoek who observed it through the lens of his simple microscope in the late seventeenth century. Vorticella has a bell-shaped body with a ciliated in the oral cavity at one end and a long stalk on the other. Vorticella reproduces asexually by mitotic cell division (Noland and Finley 1931). They are sessile freshwater forms reported from different habitats like moist soil,  mud and plant roots (Neumann and Martinoia 2002).In our previous study, we reported that Vorticella shows the mosquito larvicidal potential( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5186751/ ).  Similarly the infested ostracods, Daphnia showed mortality. These observations similar to Micks 1950 who advocated that  Vorticellids of Vorticella can cause infection in mosquito species at risk. It is necessary to find which Vorticella sp. cause the deadly infestation . Mick 1950, 1955 reported the lethal effect of Vorticella microstoma to Anopheles quadrimaculatus,  Anopheles atroparvus larvae.Attached video from Dr.Satish laboratory, NMU, Jalgaon and Vorticella sp. collected from Jalgaon area, at geographical coordinates of 21°2′54″N, 76°32′3″E, elevation 209