Direct‐geneFISH: a simplified protocol for the simultaneous detection and quantification of genes and rRNA in microorganisms

Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and identify microorganisms, the specific detection of genes in bacteria and archaea, for example by using geneFISH, requires complicated and lengthy...

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Vydáno v:Environmental microbiology Ročník 19; číslo 1; s. 70 - 82
Hlavní autoři: Barrero‐Canosa, Jimena, Moraru, Cristina, Zeugner, Laura, Fuchs, Bernhard M., Amann, Rudolf
Médium: Journal Article
Jazyk:angličtina
Vydáno: England Wiley Subscription Services, Inc 01.01.2017
Témata:
Archaea
bacteria
Croatia
E coli
Escherichia coli
Escherichia coli - genetics
fluorescence in situ hybridization
Gammaproteobacteria - genetics
gene dosage
Gene Dosage - genetics
Genes
In Situ Hybridization, Fluorescence - methods
lakes
Lakes - microbiology
Microorganisms
oligonucleotide probes
Oligonucleotide Probes - genetics
oligonucleotides
Probes
ribosomal RNA
RNA, Ribosomal - genetics
sulfates
MED, Croatia, Rogoznica L
Croatia
ISSN:1462-2912, 1462-2920
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Abstract Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and identify microorganisms, the specific detection of genes in bacteria and archaea, for example by using geneFISH, requires complicated and lengthy (> 30 h) procedures. Here we report a much improved protocol, direct‐geneFISH, which allows specific gene and rRNA detection within less than 6 h. For direct‐geneFISH, catalyzed amplification reporter deposition (CARD) steps are removed and fluorochrome‐labelled polynucleotide gene probes and rRNA‐targeted oligonucleotide probes are hybridized simultaneously. The protocol allows quantification of gene copy numbers per cell and the signal of the directly labelled probes enables a subcellular localization of the rRNA and target gene. The detection efficiencies of direct‐geneFISH were first evaluated on Escherichia coli carrying the target gene on a copy‐control vector. We could show that gene copy numbers correlated to the geneFISH signal within the cells. The new protocol was then applied for the detection of the sulfate thiolhydrolase (soxB) genes in cells of the gammaproteobacterial clade SUP05 in Lake Rogoznica, Croatia. Cell and gene detection efficiencies by direct‐geneFISH were statistically identical to those obtained with the original geneFISH, demonstrating the suitability of the simpler and faster protocol for environmental samples.
AbstractList Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and identify microorganisms, the specific detection of genes in bacteria and archaea, for example by using geneFISH, requires complicated and lengthy (> 30 h) procedures. Here we report a much improved protocol, direct‐geneFISH, which allows specific gene and rRNA detection within less than 6 h. For direct‐geneFISH, catalyzed amplification reporter deposition (CARD) steps are removed and fluorochrome‐labelled polynucleotide gene probes and rRNA‐targeted oligonucleotide probes are hybridized simultaneously. The protocol allows quantification of gene copy numbers per cell and the signal of the directly labelled probes enables a subcellular localization of the rRNA and target gene. The detection efficiencies of direct‐geneFISH were first evaluated on Escherichia coli carrying the target gene on a copy‐control vector. We could show that gene copy numbers correlated to the geneFISH signal within the cells. The new protocol was then applied for the detection of the sulfate thiolhydrolase ( soxB ) genes in cells of the gammaproteobacterial clade SUP05 in Lake Rogoznica, Croatia. Cell and gene detection efficiencies by direct‐geneFISH were statistically identical to those obtained with the original geneFISH, demonstrating the suitability of the simpler and faster protocol for environmental samples.
Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)-targeted oligonucleotides is a standard method to detect and identify microorganisms, the specific detection of genes in bacteria and archaea, for example by using geneFISH, requires complicated and lengthy (> 30 h) procedures. Here we report a much improved protocol, direct-geneFISH, which allows specific gene and rRNA detection within less than 6 h. For direct-geneFISH, catalyzed amplification reporter deposition (CARD) steps are removed and fluorochrome-labelled polynucleotide gene probes and rRNA-targeted oligonucleotide probes are hybridized simultaneously. The protocol allows quantification of gene copy numbers per cell and the signal of the directly labelled probes enables a subcellular localization of the rRNA and target gene. The detection efficiencies of direct-geneFISH were first evaluated on Escherichia coli carrying the target gene on a copy-control vector. We could show that gene copy numbers correlated to the geneFISH signal within the cells. The new protocol was then applied for the detection of the sulfate thiolhydrolase (soxB) genes in cells of the gammaproteobacterial clade SUP05 in Lake Rogoznica, Croatia. Cell and gene detection efficiencies by direct-geneFISH were statistically identical to those obtained with the original geneFISH, demonstrating the suitability of the simpler and faster protocol for environmental samples.
Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and identify microorganisms, the specific detection of genes in bacteria and archaea, for example by using geneFISH, requires complicated and lengthy (> 30 h) procedures. Here we report a much improved protocol, direct‐geneFISH, which allows specific gene and rRNA detection within less than 6 h. For direct‐geneFISH, catalyzed amplification reporter deposition (CARD) steps are removed and fluorochrome‐labelled polynucleotide gene probes and rRNA‐targeted oligonucleotide probes are hybridized simultaneously. The protocol allows quantification of gene copy numbers per cell and the signal of the directly labelled probes enables a subcellular localization of the rRNA and target gene. The detection efficiencies of direct‐geneFISH were first evaluated on Escherichia coli carrying the target gene on a copy‐control vector. We could show that gene copy numbers correlated to the geneFISH signal within the cells. The new protocol was then applied for the detection of the sulfate thiolhydrolase (soxB) genes in cells of the gammaproteobacterial clade SUP05 in Lake Rogoznica, Croatia. Cell and gene detection efficiencies by direct‐geneFISH were statistically identical to those obtained with the original geneFISH, demonstrating the suitability of the simpler and faster protocol for environmental samples.
Author Zeugner, Laura
Barrero‐Canosa, Jimena
Moraru, Cristina
Fuchs, Bernhard M.
Amann, Rudolf
Author_xml – sequence: 1
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  surname: Barrero‐Canosa
  fullname: Barrero‐Canosa, Jimena
  organization: Max Planck Institute for Marine Microbiology
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  givenname: Cristina
  surname: Moraru
  fullname: Moraru, Cristina
  email: liliana.cristina.moraru@uni-oldenburg.de
  organization: Institute for Chemistry and Biology of the Marine environment (ICBM)
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  surname: Zeugner
  fullname: Zeugner, Laura
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  fullname: Amann, Rudolf
  email: ramann@mpi-bremen.de
  organization: Max Planck Institute for Marine Microbiology
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Snippet Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and...
Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)‐targeted oligonucleotides is a standard method to detect and identify...
Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)-targeted oligonucleotides is a standard method to detect and identify...
Summary Although fluorescence in situ hybridization (FISH) with specific ribosomal RNA (rRNA)-targeted oligonucleotides is a standard method to detect and...
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wiley
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StartPage 70
SubjectTerms Archaea
bacteria
Croatia
E coli
Escherichia coli
Escherichia coli - genetics
fluorescence in situ hybridization
Gammaproteobacteria - genetics
gene dosage
Gene Dosage - genetics
Genes
In Situ Hybridization, Fluorescence - methods
lakes
Lakes - microbiology
Microorganisms
oligonucleotide probes
Oligonucleotide Probes - genetics
oligonucleotides
Probes
ribosomal RNA
RNA, Ribosomal - genetics
sulfates
Title Direct‐geneFISH: a simplified protocol for the simultaneous detection and quantification of genes and rRNA in microorganisms
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https://www.ncbi.nlm.nih.gov/pubmed/27348074
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https://www.proquest.com/docview/1826709864
https://www.proquest.com/docview/1868307615
https://www.proquest.com/docview/2020873203
Volume 19
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