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Biomarker metaproteomics for relative taxa abundances across soil organismsStarke, Robert ...Soil organisms are often classified using methods targeting individual groups of taxa (e.g., bacteria, fungi and invertebrates), which hampers our ability to directly compare the relative abundance ... of different groups across environmental gradients. We posit that the use of protein biomarkers could help to provide a more real representation of the cross-kingdom soil microbial populations. Here, we tested if the abundant proteins ATP synthase F(0) complex (ATPS), elongation factors (EF), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), GroEL, pyruvate dehydrogenase (PyrDH), RNA polymerase beta chain (RNAP), and translation initiation factor 2 (TIF) could be used to describe the taxonomic composition of microbial communities. As positive control, we used a mock community with different relative abundances of algae, archaea, bacteria, and viruses. We tested this approach on a previously published soil metaproteomes from which we randomly selected samples from forests, grasslands, and shrublands (each n = 10). Unfortunately, the biomarker approach is not feasible for viruses as these organisms do not share single genes. All biomarkers showed decent accuracy to determine the relative abundances of archaea, bacteria, and eukaryota in the mock community. However, false positive hits dominated on phylum level probably due to sequence homology. Archaeal proteins were only detected in the soil samples when EF was used as biomarker at an abundance of 0.7%. Bacteria dominated the EF-metaproteome and were most abundant in shrublands (64.4%) while eukaryotes were more abundant in forests (25.6%). In compliance with previously published results, the correlation analysis revealed the impact of mean annual temperature and pH on both bacteria and eukaryota. Our approach not only shows the potential to use biomarker metaproteomics to unveil the relative taxa abundances across soil organisms but also the need to create mock communities comprising members of all soil taxa.Vir: Soil biology & biochemistry. - ISSN 0038-0717 (Vol. 175, article no. 108861, 2022, 6 str.)Vrsta gradiva - članek, sestavni delLeto - 2022Jezik - angleškiCOBISS.SI-ID - 145144835
Avtor
Starke, Robert |
Fiore-Donno, Anna Maria |
White III, Richard Allen |
Parente Fernandes, Maysa Lima |
Martinović, Tijana |
Bastida, Felipe |
Delgado-Baquerizo, Manuel |
Jehmlich, Nico
Teme
metaproteomika |
biomarkerji |
relativna pojavnost taksonov |
metaproteomics |
biomarker |
relative taxa abundances
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Starke, Robert | ![]() |
Fiore-Donno, Anna Maria | ![]() |
White III, Richard Allen | ![]() |
Parente Fernandes, Maysa Lima | ![]() |
Martinović, Tijana | 37938 |
Bastida, Felipe | ![]() |
Delgado-Baquerizo, Manuel | ![]() |
Jehmlich, Nico | ![]() |
Vir: Osebne bibliografije
in: SICRIS
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