Interactions between Paramecium bursaria (Protozoa, Ciliophora, Hymenostomatida) and their nuclear symbionts

Professor Hans-Dieter Görtz (1945–2019). In memory of my close friend and colleague

“…The second half of the 1980s, and especially the 1990s and the beginning of the 2000s was the time of the most intensive scientific activity of Hans-Dieter and his colleagues in the field of symbiontology (Görtz, 1983(Görtz, , 1986(Görtz, , 1987(Görtz, , 1988(Görtz, , 1996(Görtz, , 1998(Görtz, , 2008(Görtz, , 2010(Görtz, , 2014Görtz and Wiemann, 1989;Fujishima et al, 1990Fujishima et al, , 1991Fujishima et al, , 1997Heckmann and Görtz, 1991;Fokin and Skovorodkin, 1991a, 1991bFokin, 1993;2004a;Ossipov et al, 1993;Fokin et al, 1996Fokin et al, , 2003bFokin et al, , 2005Fokin et al, , 2006Skoblo et al, 1996;Görtz and Brigge, 1998;Görtz et al, 1990Görtz et al, , 1993Görtz et al, , 2009Skovorodkin et al, 2001;Görtz and Michel, 2003;Nakamura et al, 2004;Görtz and Schmidt, 2005;Iwatani et al, 2005;Lang et al, 2005;Sabaneyeva et al, 2005Sabaneyeva et al, , 2007Schrallhammer at al., 2006;Fema et al, 2008;Görtz and Fokin, 2009;Fokin and Görtz, 2009;Schrallhammer and Schweikert, 2009, and many others). A number of his students have ...…”