PMID- 18571259 OWN - NLM STAT- MEDLINE DCOM- 20081021 LR - 20191210 IS - 0167-7012 (Print) IS - 0167-7012 (Linking) VI - 75 IP - 1 DP - 2008 Sep TI - In situ detection of bacteria in calcified biofilms using FISH and CARD-FISH. PG - 103-8 LID - 10.1016/j.mimet.2008.05.015 [doi] AB - Modified protocols of fluorescence in situ hybridization (FISH) and catalyze reporter deposition fluorescence in situ hybridization (CARD-FISH) were developed in order to detect bacteria in situ in calcified stromatolite biofilms. Smooth, well-preserved thin sections of calcified biofilms (approximately 5 microm thin, vertical sectioning of approximately 1 cm deep) were obtained by cryo-sectioning using the adhesive tape-stabilization technique. A modified hybridization buffer was applied during hybridization to prevent calcite dissolution as well as false binding of oligonucleotide probes to the charged mineral surfaces. Particularly, bright and specific CARD-FISH signals allowed the detection of bacteria in intensively calcified biofilms even at low magnification, which is suitable for investigating millimeter- to centimeter-scale vertical distribution patterns of bacteria. FAU - Shiraishi, Fumito AU - Shiraishi F AD - Geoscience Centre, University of Gottingen, Goldschmidtstrasse 3, D-37077 Gottingen, Germany. fshirai@gwdg.de FAU - Zippel, Barbara AU - Zippel B FAU - Neu, Thomas R AU - Neu TR FAU - Arp, Gernot AU - Arp G LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080520 PL - Netherlands TA - J Microbiol Methods JT - Journal of microbiological methods JID - 8306883 RN - 0 (Oligonucleotide Probes) SB - IM MH - Bacteria/*genetics/isolation & purification MH - *Bacteriological Techniques MH - *Biofilms MH - Fresh Water/microbiology MH - Geologic Sediments/*microbiology MH - In Situ Hybridization, Fluorescence/*methods MH - Nucleic Acid Hybridization/*methods MH - Oligonucleotide Probes/genetics EDAT- 2008/06/24 09:00 MHDA- 2008/10/22 09:00 CRDT- 2008/06/24 09:00 PHST- 2008/03/27 00:00 [received] PHST- 2008/05/02 00:00 [revised] PHST- 2008/05/13 00:00 [accepted] PHST- 2008/06/24 09:00 [pubmed] PHST- 2008/10/22 09:00 [medline] PHST- 2008/06/24 09:00 [entrez] AID - S0167-7012(08)00195-4 [pii] AID - 10.1016/j.mimet.2008.05.015 [doi] PST - ppublish SO - J Microbiol Methods. 2008 Sep;75(1):103-8. doi: 10.1016/j.mimet.2008.05.015. Epub 2008 May 20.