Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling

(1) Background: <i>Bacillus velezensis</i> and <i>Bacillus amyloliquefaciens</i> are closely related members of the “operational group <i>B. amyloliquefaciens</i>”, a taxonomical unit above species level within the ”<i>Bacillus subtilis</i> species com...

Full description

Bibliographic Details
Main Authors: Thu Huynh, Mónika Vörös, Orsolya Kedves, Adiyadolgor Turbat, György Sipos, Balázs Leitgeb, László Kredics, Csaba Vágvölgyi, András Szekeres
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/10/2/418
_version_ 1797477815422025728
author Thu Huynh
Mónika Vörös
Orsolya Kedves
Adiyadolgor Turbat
György Sipos
Balázs Leitgeb
László Kredics
Csaba Vágvölgyi
András Szekeres
author_facet Thu Huynh
Mónika Vörös
Orsolya Kedves
Adiyadolgor Turbat
György Sipos
Balázs Leitgeb
László Kredics
Csaba Vágvölgyi
András Szekeres
author_sort Thu Huynh
collection DOAJ
description (1) Background: <i>Bacillus velezensis</i> and <i>Bacillus amyloliquefaciens</i> are closely related members of the “operational group <i>B. amyloliquefaciens</i>”, a taxonomical unit above species level within the ”<i>Bacillus subtilis</i> species complex”. They have similar morphological, physiological, biochemical, phenotypic, and phylogenetic characteristics. Thus, separating these two taxa from each another has proven to be difficult to implement and could not be pushed easily into the line of routine analyses. (2) Methods: The aim of this study was to determine whether whole FAME profiling could be used to distinguish between these two species, using both type strains and environmental isolates. Initially, the classification was determined by partial sequences of the <i>gyrA</i> and <i>rpoB</i> genes and the classified isolates and type strains were considered as samples to develop the identification method, based on FAME profiles. (3) Results: The dissimilarities in 16:0, 17:0 iso, and 17:0 FA components have drawn a distinction between the two species and minor differences in FA 14:0, 15:0 iso, and 16:0 iso were also visible. The statistical analysis of the FA profiles confirmed that the two taxa can be distinguished into two separate groups, where the isolates are identified without misreading. (4) Conclusions: Our study proposes that the developed easy and fast-automated identification tool based on cellular FA profiles can be routinely applied to distinguish <i>B. velezensis</i> and <i>B. amyloliquefaciens</i>.
first_indexed 2024-03-09T21:23:06Z
format Article
id doaj.art-c8ca9d8ea7f24d4b923696d252abb24f
institution Directory Open Access Journal
issn 2076-2607
language English
last_indexed 2024-03-09T21:23:06Z
publishDate 2022-02-01
publisher MDPI AG
record_format Article
series Microorganisms
spelling doaj.art-c8ca9d8ea7f24d4b923696d252abb24f2023-11-23T21:15:53ZengMDPI AGMicroorganisms2076-26072022-02-0110241810.3390/microorganisms10020418Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid ProfilingThu Huynh0Mónika Vörös1Orsolya Kedves2Adiyadolgor Turbat3György Sipos4Balázs Leitgeb5László Kredics6Csaba Vágvölgyi7András Szekeres8Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryFunctional Genomics and Bioinformatics Group, Research Center for Forestry and Wood Industry, University of Sopron, Bajcsy-Zsilinszky Str. 4, H-9400 Sopron, HungaryInstitute of Biophysics, Biological Research Centre, Eötvös Loránd Research Network, Temesvári Krt. 62, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, HungaryDepartment of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary(1) Background: <i>Bacillus velezensis</i> and <i>Bacillus amyloliquefaciens</i> are closely related members of the “operational group <i>B. amyloliquefaciens</i>”, a taxonomical unit above species level within the ”<i>Bacillus subtilis</i> species complex”. They have similar morphological, physiological, biochemical, phenotypic, and phylogenetic characteristics. Thus, separating these two taxa from each another has proven to be difficult to implement and could not be pushed easily into the line of routine analyses. (2) Methods: The aim of this study was to determine whether whole FAME profiling could be used to distinguish between these two species, using both type strains and environmental isolates. Initially, the classification was determined by partial sequences of the <i>gyrA</i> and <i>rpoB</i> genes and the classified isolates and type strains were considered as samples to develop the identification method, based on FAME profiles. (3) Results: The dissimilarities in 16:0, 17:0 iso, and 17:0 FA components have drawn a distinction between the two species and minor differences in FA 14:0, 15:0 iso, and 16:0 iso were also visible. The statistical analysis of the FA profiles confirmed that the two taxa can be distinguished into two separate groups, where the isolates are identified without misreading. (4) Conclusions: Our study proposes that the developed easy and fast-automated identification tool based on cellular FA profiles can be routinely applied to distinguish <i>B. velezensis</i> and <i>B. amyloliquefaciens</i>.https://www.mdpi.com/2076-2607/10/2/418<i>Bacillus</i> taxonomy<i>Bacillus velezensis</i><i>Bacillus amyloliquefaciens</i>fatty acid profilingchemotaxonomy
spellingShingle Thu Huynh
Mónika Vörös
Orsolya Kedves
Adiyadolgor Turbat
György Sipos
Balázs Leitgeb
László Kredics
Csaba Vágvölgyi
András Szekeres
Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
Microorganisms
<i>Bacillus</i> taxonomy
<i>Bacillus velezensis</i>
<i>Bacillus amyloliquefaciens</i>
fatty acid profiling
chemotaxonomy
title Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
title_full Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
title_fullStr Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
title_full_unstemmed Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
title_short Discrimination between the Two Closely Related Species of the Operational Group <i>B. amyloliquefaciens</i> Based on Whole-Cell Fatty Acid Profiling
title_sort discrimination between the two closely related species of the operational group i b amyloliquefaciens i based on whole cell fatty acid profiling
topic <i>Bacillus</i> taxonomy
<i>Bacillus velezensis</i>
<i>Bacillus amyloliquefaciens</i>
fatty acid profiling
chemotaxonomy
url https://www.mdpi.com/2076-2607/10/2/418
work_keys_str_mv AT thuhuynh discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT monikavoros discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT orsolyakedves discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT adiyadolgorturbat discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT gyorgysipos discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT balazsleitgeb discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT laszlokredics discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT csabavagvolgyi discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling
AT andrasszekeres discriminationbetweenthetwocloselyrelatedspeciesoftheoperationalgroupibamyloliquefaciensibasedonwholecellfattyacidprofiling