Figure 2

Selective detection of microbial cells on Asian dust particles (collected on 12 Nov. 2010) by laser scanning microscopy following fluorescent nucleic acid staining.
(a) Microbial cells on Asian dust particles. (b) Asian dust particles. (c) Composite image of a) and b). (d) Microcolony of microbial cells formed on an Asian dust particle. Microbial cells fluoresce green/yellow, while particles fluoresce red.