Fig. 1: Sampling site and microscopy observation of Vampirococcus cells.
From: Reductive evolution and unique predatory mode in the CPR bacterium Vampirococcus lugosii
a General view of the microbial mat covering the shore of the Salada de Chiprana lake. b Closer view of a microbial mat section. c Natural population of blooming sulfide-dependent anoxygenic photosynthetic bacteria in waters of microbial mat containers after several weeks of growth in the laboratory; note the conspicuous refringent intracellular sulfur inclusions. d–f Closer microscopy view of anoxygenic photosynthetic bacteria infected by epibiotic Vampirococcus cells and few-cell filaments (indicated by yellow arrows). g Scanning electron microscopy image of a host cell infected by two stacking Vampirococcus cells (yellow arrow). h Transmission electron microscopy (TEM) image of a thin section of a host cell infected by Vampirococcus (yellow arrow). i Closer TEM view of a thin section of Vampirococcus cells, notice the fibrous rugose cell surface and the large space separating contiguous cells. Scale bars: 5 cm (b), 5 µm (c), 1 µm (d–h), 0.5 µm (i).
