Fig. 1
From: Microenvironments on individual sand grains enhance nitrogen loss in coastal sediments
Micrographs showing the colonization of single sand grains by microorganisms. (A) dsDNA staining (SYBR Green I, green, exc.:469/35 nm, em.: 510/42 nm) overlaid with RGB image of sand grains revealing the heterogeneous microbial colonization on individual sand grains, (B) autofluorescence image (red) showing colonization of chlorophyll-a containing phototrophic microorganisms (exc.: 469/35 nm, em.: > 590 nm), (C) overlay of dsDNA staining (green) and autofluorescence image (red) reveals co-colonization of photo- and non-phototrophic microorganisms on the sand grains. (D) Conceptual view of the acrylic microfluidic device filled with sand grains to conduct the incubations. See also Table S1. Scalebars denote 250 μm.