Figure 6
From: Bio-cleaning of nitrate salt efflorescence on stone samples using extremophilic bacteria
Typical photomicrographs of: (a) NYT samples after nitrate enrichment; (b) NYT samples before nitrate enrichment; (c) NYT samples surface supplemented with agar disc untreated; (d) NYT samples surface supplemented with agar disc treated with Halomonas campaniensis; (e) NYT sample outdoor exposed supplemented with agar disc untreated; (f) NYT sample outdoor exposed supplemented with agar disc treated with Halomonas campaniensis; (f) NYT sample treated surface after removal of Halomonas campaniensis specimen by spatula; (g) NYT sample treated surface after removal of Halomonas campaniensis specimen by spatula and subsequent water washing by sponge.
