PMID- 16420624 OWN - NLM STAT- MEDLINE DCOM- 20060417 LR - 20061115 IS - 0168-6496 (Print) IS - 0168-6496 (Linking) VI - 55 IP - 1 DP - 2006 Jan TI - A digital imaging procedure for seven-probe-labeling FISH (Rainbow-FISH) and its application to estuarine microbial communities. PG - 159-66 AB - For multi-probe-labeling fluorescence in situ hybridization (FISH), a digital imaging procedure was developed consisting of systematic background noise reduction and target signal equalization using a hue, saturation, value color partitioning technique. By the combined application of seven DNA probes, each labeled with three fluorochromes at maximum, seven kinds of cultured type strains were distinguished in a microscopic field simultaneously. Using this seven-probe-labeling FISH (Rainbow-FISH), several phylogenetic groups of microbes that occur frequently in aquatic environments, such as Alpha-, Beta- and Gammaproteobacteria, Cytophaga-Flavobacterium and Actinobacteria, were identified and quantified. The total counts of cells specified by Rainbow-FISH were in the range of 96-108% of those of general FISH, showing that the method is highly reliable for quantitative population analysis. Analyzing samples obtained at points along a river to a sea, we found a reverse population change in two groups: apparent decreases in Betaproteobacteria but gradual increases in Gammaproteobacteria. This method provides a platform toward the improvement of semiautomatic analysis of aquatic microbes under various metabolic conditions. FAU - Sunamura, Michinari AU - Sunamura M AD - Biological Resources and Functions, National Institute of Advanced and Industrial Science and Technology, AIST, Tsukuba, Ibaraki, Japan. FAU - Maruyama, Akihiko AU - Maruyama A LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - FEMS Microbiol Ecol JT - FEMS microbiology ecology JID - 8901229 RN - 0 (Oligonucleotide Probes) SB - IM MH - Actinobacteria/genetics/isolation & purification MH - Archaea/genetics MH - Colony Count, Microbial/methods MH - Computers MH - Cytophaga/genetics/isolation & purification MH - Fresh Water/microbiology MH - In Situ Hybridization, Fluorescence/*methods MH - Japan MH - Marine Biology/*methods MH - Oligonucleotide Probes MH - Proteobacteria/genetics/isolation & purification MH - *Water Microbiology EDAT- 2006/01/20 09:00 MHDA- 2006/04/18 09:00 CRDT- 2006/01/20 09:00 PHST- 2006/01/20 09:00 [pubmed] PHST- 2006/04/18 09:00 [medline] PHST- 2006/01/20 09:00 [entrez] AID - FEM013 [pii] AID - 10.1111/j.1574-6941.2005.00013.x [doi] PST - ppublish SO - FEMS Microbiol Ecol. 2006 Jan;55(1):159-66. doi: 10.1111/j.1574-6941.2005.00013.x.