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Rosić I, Nikolić I, Ranković T, Anteljević M, Medić O, Berić T, Stanković S. Genotyping-driven diversity assessment of biocontrol potent Bacillus spp. strain collection as a potential method for the development of strain-specific biomarkers. Arch Microbiol 2023; 205:114. [PMID: 36907935 DOI: 10.1007/s00203-023-03460-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 02/01/2023] [Accepted: 03/01/2023] [Indexed: 03/14/2023]
Abstract
Bacillus species are among the most researched and frequently applied biocontrol agents. To estimate their potential as environmentally friendly microbial-based products, reliable and rapid plant colonization monitoring methods are essential. We evaluated repetitive element-based (rep) and Random Amplified Polymorphic DNA (RAPD) PCR (Polymerase Chain Reaction) genotyping in a diversity assessment of 251 strains from bulk soil, straw, and manure samples across Serbia, highlighting their discriminative force and the presence of unique bands. RAPD 272, OPG 5, and (GTG)5 primers were most potent in revealing the high diversity of a sizable environmental Bacillus spp. collection. RAPD 272 also amplified a unique band for a proven biocontrol strain, opening the possibility of Sequence Characterized Amplified Region (SCAR) marker design. That will enable colonization studies using the SCAR marker for its specific detection. This study provides a guide for primer selection for diversity and monitoring studies of environmental Bacillus spp. isolates.
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Affiliation(s)
- Iva Rosić
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia.
| | - Ivan Nikolić
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
| | - Tamara Ranković
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
| | - Marina Anteljević
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
| | - Olja Medić
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
| | - Tanja Berić
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
| | - Slaviša Stanković
- University of Belgrade - Faculty of Biology, Center for Biological Control and Plant Growth Promotion, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia
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Zhao L, Zhang D, Liu Y, Zhang YN, Meng DQ, Xu Q, Zhong J, Jiang QY, Zhao Y, Wang SJ. Quantitative PCR Assays for the Strain-Specific Identification and Enumeration of Probiotic Strain Lacticaseibacillus rhamnosus X253. Foods 2022; 11:foods11152282. [PMID: 35954048 PMCID: PMC9367767 DOI: 10.3390/foods11152282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 11/20/2022] Open
Abstract
Probiotics are universally recognized for their health benefits, despite the fact that their effects depend on the strain. Identification and enumeration of probiotic strains are required prior to evaluating their effectiveness. Lacticaseibacillus rhamnosus X253 is a potential probiotic strain with antioxidant capacity. Comparative genomics and single nucleotide polymorphisms (SNPs) were used to identify a strain-specific locus within the holA gene for strain X253 that was distinct in 30 different L. rhamnosus strains. Using quantitative PCR, the primers and probe designed for the locus were able to distinguish L. rhamnosus X253 from the other 20 probiotic strains. The chosen locus remained stable over 19 generations. The sensitivity of the assay was 0.2 pg genomic DNA of L. rhamnosus X253, or 103 cfu/mL bacteria of this strain. In terms of repeatability and reproducibility, relative standard deviations (RSD) were less than 1% and 3%, respectively. Additionally, this assay achieved accurate enumerations of L. rhamnosus X253 in spiked milk and complex powder samples. The strain-specific assay could be used for quality control and compliance assessment of dairy products.
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Affiliation(s)
- Lei Zhao
- Key Laboratory of Milk and Dairy Products Detection and Monitoring Technology for State Market Regulation, Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China; (L.Z.); (Y.-N.Z.); (Q.X.)
- Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai 200438, China; (J.Z.); (Q.-Y.J.)
| | - Dong Zhang
- Junlebao Dairy Group, Shijiazhuang 050221, China;
| | - Yang Liu
- Key Laboratory of Milk and Dairy Products Detection and Monitoring Technology for State Market Regulation, Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China; (L.Z.); (Y.-N.Z.); (Q.X.)
- Correspondence: (Y.L.); (S.-J.W.); Tel.: +86-021-54263408 (Y.L.); +86-0311-86266225 (S.-J.W.)
| | - Yi-Nan Zhang
- Key Laboratory of Milk and Dairy Products Detection and Monitoring Technology for State Market Regulation, Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China; (L.Z.); (Y.-N.Z.); (Q.X.)
| | - Dong-Qing Meng
- College of Life Sciences, Shanghai Normal University, Shanghai 200234, China; (D.-Q.M.); (Y.Z.)
| | - Qiong Xu
- Key Laboratory of Milk and Dairy Products Detection and Monitoring Technology for State Market Regulation, Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China; (L.Z.); (Y.-N.Z.); (Q.X.)
| | - Jiang Zhong
- Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai 200438, China; (J.Z.); (Q.-Y.J.)
| | - Qiu-Yue Jiang
- Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai 200438, China; (J.Z.); (Q.-Y.J.)
| | - Yu Zhao
- College of Life Sciences, Shanghai Normal University, Shanghai 200234, China; (D.-Q.M.); (Y.Z.)
| | - Shi-Jie Wang
- Junlebao Dairy Group, Shijiazhuang 050221, China;
- Correspondence: (Y.L.); (S.-J.W.); Tel.: +86-021-54263408 (Y.L.); +86-0311-86266225 (S.-J.W.)
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Grujović MŽ, Mladenović KG, Semedo-Lemsaddek T, Laranjo M, Stefanović OD, Kocić-Tanackov SD. Advantages and disadvantages of non-starter lactic acid bacteria from traditional fermented foods: Potential use as starters or probiotics. Compr Rev Food Sci Food Saf 2022; 21:1537-1567. [PMID: 35029033 DOI: 10.1111/1541-4337.12897] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022]
Abstract
Traditional fermented foods are a significant source of starter and/or non-starter lactic acid bacteria (nsLAB). Moreover, these microorganisms are also known for their role as probiotics. The potential of nsLAB is huge; however, there are still challenges to be overcome with respect to characterization and application. In the present review, the most important steps that autochthonous lactic acid bacteria isolated from fermented foods need to overcome, to qualify as novel starter cultures, or as probiotics, in food technology and biotechnology, are considered. These different characterization steps include precise identification, detection of health-promoting properties, and safety evaluation. Each of these features is strain specific and needs to be accurately determined. This review highlights the advantages and disadvantages of nsLAB, isolated from traditional fermented foods, discussing safety aspects and sensory impact.
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Affiliation(s)
- Mirjana Ž Grujović
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Republic of Serbia.,Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Kragujevac, Republic of Serbia
| | - Katarina G Mladenović
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Republic of Serbia.,Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Kragujevac, Republic of Serbia
| | - Teresa Semedo-Lemsaddek
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisboa, Portugal
| | - Marta Laranjo
- MED-Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Olgica D Stefanović
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Kragujevac, Republic of Serbia
| | - Sunčica D Kocić-Tanackov
- Department of Food Preservation Engineering, Faculty of Technology, University of Novi Sad, Novi Sad, Republic of Serbia
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Real-time PCR method for qualitative and quantitative detection of Lactobacillus sakei group species targeting novel markers based on bioinformatics analysis. Int J Food Microbiol 2021; 355:109335. [PMID: 34343716 DOI: 10.1016/j.ijfoodmicro.2021.109335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 06/06/2021] [Accepted: 07/17/2021] [Indexed: 11/21/2022]
Abstract
Latilactobacillus sakei group comprises four closely related species, making it difficult to accurately distinguish them with standard markers such as the 16S rRNA gene. The objective of our study was to mine novel markers for PCR detection and discrimination of L. sakei group species and L. sakei subspecies by comparative pan-genomic analysis. A total of 63 genome sequences of L. sakei group species consisted of 119,899 coding genes, yielding 5741 pan-genomes, 831 core-genomes, 3347 accessory-genomes, and 1563 unique-genomes. The accessory-genome was compared to extract unique candidate genes common only to genomes of the same species. The candidate genes were then aligned with the other bacterial genomes to select marker genes present in all genomes of a given species, but not in the genomes of other species. We identified the arginine/ornithine antiporter, putative cell surface protein precursor, sodium:solute symporter, PRD domain protein, PTS sugar transporter subunit IIC, and phosphoenolpyruvate-dependent sugar phosphotransferase system EIIC as marker genes for L. sakei, L. sakei subsp. sakei, L. sakei subsp. carnosus, L. curvatus, L. graminis, and L. fuchuensis, respectively. Primer pairs were designed for each marker and showed 100% specificity for 48 lactic acid bacterial reference strains. The PCR method developed in this study was used to evaluate 106 strains isolated from fermented foods to demonstrate that the marker genes provided a viable alternative to the 16S rRNA gene. We also applied the method to the monitoring of kimchi samples to quantify L. sakei group species or subspecies. Our PCR method based on novel markers can rapidly identify L. sakei group with high accuracy and high throughput.
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Zhang C, Yu X, Wang D, Gui Y, Wang C, Li Q, Wang J, Yin B, Pan Z, Gu R. Rapid strain-specific identification of two Lactobacillus rhamnosus strains using PCR based on gene family analysis. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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SCAR marker for identification and discrimination of specific medicinal Lycium chinense Miller from Lycium species from ramp-PCR RAPD fragments. 3 Biotech 2020; 10:334. [PMID: 32656067 DOI: 10.1007/s13205-020-02325-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 06/29/2020] [Indexed: 12/19/2022] Open
Abstract
In the current study, ramp-PCR fragments from improved RAPD (random amplified polymorphic DNA) amplification of Lycium (Goji) species or cultivars were cut and cloned into the vector of pGEM-T. A positive clone 10-5 was screened by PCR amplification, enzymatic digestion, and Sanger sequencing. A SCAR (sequence-characterized amplified region) marker, named Goji 10-5, with 949 nucleotides in length, was identified. Goji 10-5 is specific to Goji species Lycium chinense Miller from Jiangxi in China and Texas in the USA. A BLAST search of this nucleotide sequence in the GenBank database indicated that it shows no identity with any other species, including no any other Lycium species. As a new sequence, we have deposited it in the GenBank database with accession No. MN862323. PCR assays were developed and converted the nucleotide sequence to become a novel molecular marker for Lycium chinense Miller, named Goji 10-5. This marker may be used for the genetic identification of other samples. This study has successfully developed Goji 10-5, a specific SCAR marker to identify L. chinense and distinguish it from other species, including other Lycium species from different locations.
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Kim E, Yang SM, Lim B, Park SH, Rackerby B, Kim HY. Design of PCR assays to specifically detect and identify 37 Lactobacillus species in a single 96 well plate. BMC Microbiol 2020; 20:96. [PMID: 32295530 PMCID: PMC7160897 DOI: 10.1186/s12866-020-01781-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 04/02/2020] [Indexed: 02/06/2023] Open
Abstract
Background Lactobacillus species are used as probiotics and play an important role in fermented food production. However, use of 16S rRNA gene sequences as standard markers for the differentiation of Lactobacillus species offers a very limited scope, as several species of Lactobacillus share similar 16S rRNA gene sequences. In this study, we developed a rapid and accurate method based on comparative genomic analysis for the identification of 37 Lactobacillus species that are commonly used in probiotics and fermented foods. Results To select species-specific sequences or genes, a total of 180 Lactobacillus genome sequences were compared using Python scripts. In 14 out of 37 species, species-specific sequences could not be found due to the similarity of the 16S–23S rRNA gene. Selected unique genes were obtained using comparative genomic analysis and all genes were confirmed to be specific for 52,478,804 genomes via in silico analysis; they were found not to be strain-specific, but to exist in all strains of the same species. Species-specific primer pairs were designed from the selected 16S–23S rRNA gene sequences or unique genes of species. The specificity of the species-specific primer pairs was confirmed using reference strains, and the accuracy and efficiency of the polymerase chain reaction (PCR) with the standard curve were confirmed. The PCR method developed in this study is able to accurately differentiate species that were not distinguishable using the 16S rRNA gene alone. This PCR assays were designed to detect and identify 37 Lactobacillus species. The developed method was then applied in the monitoring of 19 probiotics and 12 dairy products. The applied tests confirmed that the species detected in 17 products matched those indicated on their labels, whereas the remaining products contained species other than those appearing on the label. Conclusions The method developed in this study is able to rapidly and accurately distinguish different species of Lactobacillus, and can be used to monitor specific Lactobacillus species in foods such as probiotics and dairy products.
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Affiliation(s)
- Eiseul Kim
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104, South Korea
| | - Seung-Min Yang
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104, South Korea
| | - Bora Lim
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104, South Korea
| | - Si Hong Park
- Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Bryna Rackerby
- Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Hae-Yeong Kim
- Institute of Life Sciences & Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104, South Korea.
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