“…Some authors (Yamaguchi et al, 1994;Schupp & Erlandsen, 1987;Yamaguchi & Nasu, 1997) Another interesting application of FCM to microbiology requires the use of fluorochromes conjugated to antibodies or oligonucleotides for the detection of microbial antigens or DNA and RNA sequences to directly (Vives-Rego et al, 2000;Amann et al, 1990a;Marx et al, 2003;Temmerman et al, 2004) identify micro-organisms in natural ecosystems (Amann et al, 1990b;Wallner et al, 1997;Biegala et al, 2003).…”