1
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Karagoz K, Dadasoglu F, Alaylar B, Kotan R. Evaluation of molecular typing methods for some scab-causing Streptomyces strains from Turkey. World J Microbiol Biotechnol 2024; 40:122. [PMID: 38441818 PMCID: PMC10914884 DOI: 10.1007/s11274-024-03914-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/30/2024] [Indexed: 03/07/2024]
Abstract
This study was conducted for identifying phylogenetic relationships between 15 scab-causing Streptomyces species including S. bottropensis, S. europaeiscabiei, S. scabiei, S. stelliscabiei and, other 11 Streptomyces sp. All of the strains were originally isolated from symptomatic potatoes in Erzurum Province, The Eastern Anatolia Region of Turkey. Some morphological and biochemical properties of the strains were defined in our former research. Then, 16 s rRNA regions of them were sequenced. After the sequence data assembly, phylogenetic analyzes were performed. The phylogenetic analyses revealed that the strains are involved in the same major group and, substantially similar to reference strains. Additionally, some subgroup formations were also recorded. Moreover, Repetitive element-based PCR (Rep-PCR), Enterobacterial repetitive intergenic consensus (ERIC-PCR), and BOX-PCR fingerprinting molecular typing methods were used for as molecular typing methods. According to our knowledge, this is the first report on phylogenetic relationships of scab-causing Streptomyces species from Turkey. However, the identification of most pathogenic strains remained at the species level.
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Affiliation(s)
- Kenan Karagoz
- Faculty of Science and Literature, Department of Molecular Biology and Genetics, Agri Ibrahim Cecen University, 04100, Agri, Turkey.
| | - Fatih Dadasoglu
- Agricultural Faculty, Department of Plant Protection, Ataturk University, 25240, Erzurum, Turkey
| | - Burak Alaylar
- Faculty of Science and Literature, Department of Molecular Biology and Genetics, Agri Ibrahim Cecen University, 04100, Agri, Turkey
| | - Recep Kotan
- Agricultural Faculty, Department of Plant Protection, Ataturk University, 25240, Erzurum, Turkey
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2
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Hudec C, Biessy A, Léger G, Albert D, Novinscak A, Filion M. Seasonal Dynamics of Various Scab-Causing Streptomyces Genotypes Among Potato Fields on Prince Edward Island. PHYTOPATHOLOGY 2024; 114:146-154. [PMID: 37366579 DOI: 10.1094/phyto-05-23-0149-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Potato common scab is an important bacterial plant disease caused by numerous Streptomyces species and strains. A better understanding of the genetic diversity and population dynamics of these microorganisms in the field is crucial to develop effective control methods. Our research group previously studied the genetic diversity of scab-causing Streptomyces spp. in Prince Edward Island, one of Canada's most important potato-growing provinces. Fourteen distinct Streptomyces genotypes were identified and displayed contrasting aggressiveness toward potato tubers. To better understand the distribution and occurrence of these genotypes over time under field conditions, the population dynamics were studied in nine commercial potato fields throughout a growing season. A comparative genomic-driven approach was used to design genotype-specific primers and probes, allowing us to quantify, using quantitative polymerase chain reaction, the abundance of each of the 14 genotypes in field soil. Thirteen of the previously identified genotypes were detected in at least one soil sample, with various frequencies and population sizes across the different fields under study. Interestingly, weakly virulent genotypes dominated, independent of time or location. Among them, three genotypes accounted for more than 80% of the genotypes' combined population. Although the highly virulent genotypes were detected in lower relative abundance than the weakly virulent ones, an increase in the highly virulent genotypes' population size was observed over the growing season in most fields. The results will ultimately be useful for the development of targeted common scab control strategies.
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Affiliation(s)
- Cindy Hudec
- Department of Biology, Université de Moncton, Moncton, NB E1A 3E9, Canada
| | - Adrien Biessy
- Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada
| | - Geneviève Léger
- Department of Biology, Université de Moncton, Moncton, NB E1A 3E9, Canada
| | - Daphné Albert
- Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada
| | - Amy Novinscak
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, Agassiz, BC V0M 1A2, Canada
| | - Martin Filion
- Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada
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3
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Zhang X, Wang J, Zhu H, Wang J, Zhang H. Chemical Composition, Antibacterial, Antioxidant and Enzyme Inhibitory Activities of the Essential Oil from Leaves of Psidium guajava L. Chem Biodivers 2022; 19:e202100951. [PMID: 35344272 DOI: 10.1002/cbdv.202100951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/23/2022] [Indexed: 11/05/2022]
Abstract
Guava (Psidium guajava L.) leaf essential oil (GLEO) was extracted by water distillation, and its in vitro antioxidant, antidiabetic, and antibacterial properties were evaluated. Using GC/MS to determine the chemical components of GLEO, 27 constituents were identified, accounting for 74.90 % of the total oil content, among which L-caryophyllene (24.46 %), L-calamenene (10.82 %), (-)-globulol (10.69 %), and α-copaene (8.71 %) were the main components. Subsequently, the antioxidant activity of GLEO was determined by DPPH, ABTS, and β-carotene bleaching tests. The half maximal inhibitory concentration of GLEO for three free radicals were IC50 =17.66±0.07 μg/mL, IC50 =19.28±0.03 μg/mL, and IC50 =3.17±0.01 μg/mL, respectively. Moreover, GLEO exhibited remarkable α-amylase (IC50 =13.99±0.34 μg/mL) and α-glucosidase (IC50 =5.50±1.02 μg/mL) inhibitory activities. It was effective against Streptomyces acidiscabies (MIC=1.25 μg/mL), Ralstonia solanacearum (MIC=5 μg/mL), and Erwinia carotovora subsp carotovora borgey (MIC=2.5 μg/mL), showing significant antibacterial properties. Based on the findings, given the high biological activity of GLEO, it is a biological preservative for food, medicine, and cosmetics and is valuable in natural therapy and crop disease management.
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Affiliation(s)
- Xiaonan Zhang
- Northeast Agricultural University, Harbin, 150030, China.,School of Life Science, Jiaying University, Meizhou, 514015, China
| | - Jiali Wang
- Northeast Agricultural University, Harbin, 150030, China
| | - Hongwei Zhu
- Northeast Agricultural University, Harbin, 150030, China
| | - Jianhao Wang
- Northeast Agricultural University, Harbin, 150030, China
| | - Huajiang Zhang
- Northeast Agricultural University, Harbin, 150030, China
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4
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Nigericin and Geldanamycin Are Phytotoxic Specialized Metabolites Produced by the Plant Pathogen
Streptomyces
sp. 11-1-2. Microbiol Spectr 2022; 10:e0231421. [PMID: 35225656 PMCID: PMC9045263 DOI: 10.1128/spectrum.02314-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Plant pathogens use a variety of mechanisms, including the production of phytotoxic specialized metabolites, to establish an infection of host tissue. Although thaxtomin A is considered the key phytotoxin involved in the development of potato scab disease, there is increasing evidence that other phytotoxins can play a role in disease development in some instances.
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5
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Wei Q, Li J, Yang S, Wang W, Min F, Guo M, Zhang S, Dong X, Hu L, Li Z, Wang X. Streptomyces rhizophilus Causes Potato Common Scab Disease. PLANT DISEASE 2022; 106:266-274. [PMID: 34615364 DOI: 10.1094/pdis-09-20-1902-re] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Common scab (CS) caused by Streptomyces spp. is a significant soilborne potato disease that results in tremendous economic losses globally. Identification of CS-associated species of the genus Streptomyces can enhance understanding of the genetic variation of these bacterial species and is necessary for the control of this epidemic disease. The present study isolated Streptomyces strain 6-2-1(1) from scabby potatoes in Keshan County, Heilongjiang Province, China. PCR analysis confirmed that the strain harbored the characteristic Streptomyces pathogenicity island (PAI) genes (txtA, txtAB, nec1, and tomA). Pathogenicity assays proved that the strain caused typical scab lesions on potato tuber surfaces and necrosis on radish seedlings and potato slices. Subsequently, the strain was systemically characterized at morphological, physiological, biochemical, and phylogenetic levels. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 6-2-1(1) shared 99.86% sequence similarity with Streptomyces rhizophilus JR-41T, isolated initially from bamboo in rhizospheric soil in Korea. PCR amplification followed by Sanger sequencing of the 16S rRNA gene of 164 scabby potato samples collected in Heilongjiang Province from 2019 to 2020 demonstrated that approximately 2% of the tested samples were infected with S. rhizophilus. Taken together, these results demonstrate that S. rhizophilus is capable of causing potato CS disease and may pose a potential challenge to potato production in Heilongjiang Province of China.
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Affiliation(s)
- Qi Wei
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Jie Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Shuai Yang
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Wenzhong Wang
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Fanxiang Min
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Mei Guo
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Shu Zhang
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Xuezhi Dong
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Linshuang Hu
- Potato Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Zhugang Li
- Institute of Tillage and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin 150016, China
| | - Xiaodan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
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6
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Cui L, Yang C, Jin M, Wei L, Yang L, Zhou J. Identification and biological characterization of a new pathogen that causes potato scab in Gansu Province, China. Microb Pathog 2021; 161:105276. [PMID: 34728371 DOI: 10.1016/j.micpath.2021.105276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 10/19/2022]
Abstract
Potato scab caused by pathogenic Streptomyces is a serious soil-borne disease on potato. In this study, a new Streptomyces strain 5A-1 was isolated from potato samples in China. Based on morphological characteristics, 16S rDNA gene sequence analyses, it was identified as Streptomyces griseoplanus (Streptacidiphilus griseoplanus), pathogenicity of which was measured by the methods of small potato chips, radish slices and potato pot trial inoculation. Moreover, the pathogenic genes txtAB and tomA from the Streptomyces pathogenicity island (PAI) were detected. Determination of biological characteristics showed that the optimal temperature for the growth of S. griseoplanus strain 5A-1 was 25 °C, the optimal light condition was darkness, the optimal pH value was 8.5 and the most preferred carbon source and nitrogen source is glucose and aspartate, respectively. To our knowledge, it is the first report for S. griseoplanus, as a new pathogen, to cause potato scab.
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Affiliation(s)
- Lingxiao Cui
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
| | - Chengde Yang
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Mengjun Jin
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
| | - Lijuan Wei
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
| | - Liping Yang
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China
| | - Jingjiang Zhou
- Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, 730070, China; State Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxin District, Guiyang, 550025, China
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7
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Hudec C, Biessy A, Novinscak A, St-Onge R, Lamarre S, Blom J, Filion M. Comparative Genomics of Potato Common Scab-Causing Streptomyces spp. Displaying Varying Virulence. Front Microbiol 2021; 12:716522. [PMID: 34413844 PMCID: PMC8369830 DOI: 10.3389/fmicb.2021.716522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/13/2021] [Indexed: 11/20/2022] Open
Abstract
Common scab of potato causes important economic losses worldwide following the development of necrotic lesions on tubers. In this study, the genomes of 14 prevalent scab-causing Streptomyces spp. isolated from Prince Edward Island, one of the most important Canadian potato production areas, were sequenced and annotated. Their phylogenomic affiliation was determined, their pan-genome was characterized, and pathogenic determinants involved in their virulence, ranging from weak to aggressive, were compared. 13 out of 14 strains clustered with Streptomyces scabiei, while the last strain clustered with Streptomyces acidiscabies. The toxicogenic and colonization genomic regions were compared, and while some atypical gene organizations were observed, no clear correlation with virulence was observed. The production of the phytotoxin thaxtomin A was also quantified and again, contrary to previous reports in the literature, no clear correlation was found between the amount of thaxtomin A secreted, and the virulence observed. Although no significant differences were observed when comparing the presence/absence of the main virulence factors among the strains of S. scabiei, a distinct profile was observed for S. acidiscabies. Several mutations predicted to affect the functionality of some virulence factors were identified, including one in the bldA gene that correlates with the absence of thaxtomin A production despite the presence of the corresponding biosynthetic gene cluster in S. scabiei LBUM 1485. These novel findings obtained using a large number of scab-causing Streptomyces strains are challenging some assumptions made so far on Streptomyces’ virulence and suggest that other factors, yet to be characterized, are also key contributors.
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Affiliation(s)
- Cindy Hudec
- Department of Biology, Université de Moncton, Moncton, NB, Canada
| | - Adrien Biessy
- Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, Canada
| | - Amy Novinscak
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, Agassiz, BC, Canada
| | - Renée St-Onge
- Department of Biology, Université de Moncton, Moncton, NB, Canada
| | - Simon Lamarre
- Department of Biology, Université de Moncton, Moncton, NB, Canada
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-Universität Giessen, Giessen, Germany
| | - Martin Filion
- Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, Canada
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8
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Hudec C, Novinscak A, Filion M. Diversity and Virulence of Streptomyces spp. Causing Potato Common Scab in Prince Edward Island, Canada. PHYTOPATHOLOGY 2021; 111:617-626. [PMID: 32976057 DOI: 10.1094/phyto-08-20-0339-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Common scab (CS) is a potato disease that significantly decreases the market value of potato tubers after the development of necrotic lesions on their surface. Streptomyces scabiei is the main causal agent of CS; however, other closely related species, including S. acidiscabies and S. turgidiscabies, have also been shown to cause the disease. In this study, we characterized the genetic and phenotypic diversity of Streptomyces spp. causing CS in Prince Edward Island, the main potato-producing province in Canada. Two hundred and ninety-six pathogenic Streptomyces spp. isolates were retrieved from diseased tubers harvested from six fields located across a longitudinal geographical gradient. Genome fingerprinting analyses using repetitive elements PCR (ERIC- and BOX-PCR) revealed 14 distinct genetic groups. Thirteen groups were taxonomically affiliated with S. scabiei, whereas the fourteenth group was affiliated with S. acidiscabies. Their geographical distribution was characterized and revealed that on average between six and eight different genetic groups were detected per field, with variable abundance. Virulence assays showed strong differences in virulence between the genetic groups, ranging from low to highly virulent. Interestingly, pathogenic Streptomyces spp. populations in each field seem to be dominated by the most virulent genetic groups. The results obtained will contribute to better understanding of the population dynamic of pathogenic Streptomyces spp. causing CS of potato and promoting the development of more efficient detection and intervention tools to manage this important potato disease.
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Affiliation(s)
- Cindy Hudec
- Department of Biology, Université de Moncton, Moncton, New Brunswick, Canada
| | - Amy Novinscak
- Department of Biology, Université de Moncton, Moncton, New Brunswick, Canada
| | - Martin Filion
- Saint-Jean-sur-Richelieu Research and Development Center, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, Quebec, Canada
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9
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Croce V, López-Radcenco A, Lapaz MI, Pianzzola MJ, Moyna G, Siri MI. An Integrative Approach for the Characterization of Plant-Pathogenic Streptomyces spp. Strains Based on Metabolomic, Bioactivity, and Phylogenetic Analysis. Front Microbiol 2021; 12:643792. [PMID: 33828541 PMCID: PMC8019742 DOI: 10.3389/fmicb.2021.643792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/26/2021] [Indexed: 11/29/2022] Open
Abstract
Actinomycetes are generally recognized as a diverse group of gram-positive, mycelium-forming, soil bacteria that play an important role in mineralization processes and plant health, being Streptomyces the most well-known genus from this group. Although plant pathogenicity is a rare attribute in this genus, some species have significant impact worldwide due to their ability to cause important crop diseases such as potato common scab (CS). In this work, an integrative approach was applied to investigate the pathogenic potential of Streptomyces spp. isolates obtained from a local collection of actinomycetes isolated from potato fields. Secretion of phytotoxic compounds was verified in most pathogenic strains from our collection (27 out of 29), and we followed metabolomic analysis to investigate those phytotoxins. We first evaluated the production of the known phytotoxins thaxtomin A (TXT) and desmethylmensacarcin (DMSN) in phytotoxic Streptomyces spp. by HPLC analysis, resulting in 17 TXT and 6 DMSN producers. In addition, NMR-based metabolomic models were able to classify strains according to their phytotoxicity, and metabolomic data was also used to infer chemotaxonomy within pathogenic species. A correlation between phylogeny and the production of distinct phytotoxins was found, supporting the idea that there are “species specific” metabolites produced by this genus. The recently discovered polyketide DMSN was associated unequivocally with S. niveiscabiei strains and was not produced by other species in the growth conditions employed. Two S. niveiscabiei and two S. puniciscabiei phytotoxic strains that did not produce TXT nor DMSN suggest the production of other kind of metabolites involved in phytotoxicity, and allowed the prioritization of these strains for further chemical studies. Indeed, we found two S. niveiscabiei strains whose supernatants were not phytotoxic in the radish assay, suggesting other pathogenic mechanisms involved. We believe our work will be useful to help understand relations between metabolites and phylogenetic clades within actinomycetes.
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Affiliation(s)
- Valentina Croce
- Laboratorio de Microbiología Molecular, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.,Programa de Posgrado de la Facultad de Química, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Andrés López-Radcenco
- Programa de Posgrado de la Facultad de Química, Facultad de Química, Universidad de la República, Montevideo, Uruguay.,Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Paysandú, Uruguay
| | - María Inés Lapaz
- Laboratorio de Microbiología Molecular, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - María Julia Pianzzola
- Laboratorio de Microbiología Molecular, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Guillermo Moyna
- Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Paysandú, Uruguay
| | - María Inés Siri
- Laboratorio de Microbiología Molecular, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
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10
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Cheng Z, McCann S, Faraone N, Clarke JA, Hudson EA, Cloonan K, Hillier NK, Tahlan K. Production of Plant-Associated Volatiles by Select Model and Industrially Important Streptomyces spp. Microorganisms 2020; 8:microorganisms8111767. [PMID: 33187102 PMCID: PMC7697265 DOI: 10.3390/microorganisms8111767] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/01/2020] [Accepted: 11/09/2020] [Indexed: 01/13/2023] Open
Abstract
The Streptomyces produce a great diversity of specialized metabolites, including highly volatile compounds with potential biological activities. Volatile organic compounds (VOCs) produced by nine Streptomyces spp., some of which are of industrial importance, were collected and identified using gas chromatography–mass spectrometry (GC-MS). Biosynthetic gene clusters (BGCs) present in the genomes of the respective Streptomyces spp. were also predicted to match them with the VOCs detected. Overall, 33 specific VOCs were identified, of which the production of 16 has not been previously reported in the Streptomyces. Among chemical classes, the most abundant VOCs were terpenes, which is consistent with predicted biosynthetic capabilities. In addition, 27 of the identified VOCs were plant-associated, demonstrating that some Streptomyces spp. can also produce such molecules. It is possible that some of the VOCs detected in the current study have roles in the interaction of Streptomyces with plants and other higher organisms, which might provide opportunities for their application in agriculture or industry.
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Affiliation(s)
- Zhenlong Cheng
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL A1B 3X9, Canada; (Z.C.); (J.-A.C.)
| | - Sean McCann
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada; (S.M.); (E.A.H.); (K.C.)
| | - Nicoletta Faraone
- Department of Chemistry, Acadia University, Wolfville, NS B4P 2R6, Canada;
| | - Jody-Ann Clarke
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL A1B 3X9, Canada; (Z.C.); (J.-A.C.)
| | - E. Abbie Hudson
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada; (S.M.); (E.A.H.); (K.C.)
| | - Kevin Cloonan
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada; (S.M.); (E.A.H.); (K.C.)
| | - N. Kirk Hillier
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada; (S.M.); (E.A.H.); (K.C.)
- Correspondence: (N.K.H.); (K.T.)
| | - Kapil Tahlan
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL A1B 3X9, Canada; (Z.C.); (J.-A.C.)
- Correspondence: (N.K.H.); (K.T.)
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11
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Ismail S, Jiang B, Nasimi Z, Inam-ul-Haq M, Yamamoto N, Danso Ofori A, Khan N, Arshad M, Abbas K, Zheng A. Investigation of Streptomyces scabies Causing Potato Scab by Various Detection Techniques, Its Pathogenicity and Determination of Host-Disease Resistance in Potato Germplasm. Pathogens 2020; 9:pathogens9090760. [PMID: 32957549 PMCID: PMC7559370 DOI: 10.3390/pathogens9090760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/10/2020] [Accepted: 09/12/2020] [Indexed: 11/16/2022] Open
Abstract
Streptomyces scabies is a Gram-positive bacterial pathogen that causes common scab disease to several crops, particularly in the potato. It is a soil borne pathogen, a very devastating scab pathogen and difficult to manage in the field. Streptomyces has several species that cause common scab such as S. scabiei, S. acidiscabies, S. europaeiscabiei, S. luridiscabiei, S. niveiscabiei, S. puniciscabiei, S. reticuliscabiei, S. stelliscabiei, S. turgidiscabies, S. ipomoeae. Common scab disease harmfully affects potato economic and market value due to the presence of black spots on the tuber. Owing to its genetic diversity and pathogenicity, the determination of pathogen presence in potato fields is still challenging. In this study, S. scabies genetic diversity was measured by surveying five potato-growing areas of Pakistan during the growing season 2019. A total of 50 Streptomyces isolates, including S. scabies, S. acidiscabies, S. griseoflavus were isolated and identified based on morphologic, biochemical and molecular analysis. Virulent confirmation assays confirmed ten virulent strains of Streptomyces spp. On the potato cultivars Cardinal and Santee. Among the Streptomyces species, S. scabies showed the highest scab index, followed by S. acidiscabies and S. griseoflavus by exhibiting the scab-like lesions on potato tubers. Ten potato cultivars were screened against these virulent isolates of Streptomyces. The Faisalabad white variety showed the highest scab index followed By Cardinal, Tourag, Kuroda, Santee, Lady Rosetta, Asterix, Diamant, Faisalabad red and Sadaf. Moreover, genetic diversity and pathogenicity of Streptomyces spp. on potato tubers were also likely diverse in different geographical regions and also potato cultivars. This study represents a contribution to understanding the local interaction between potatoes and Streptomyces spp. in Pakistan. It will aid in supporting a solution for the management of this pathogen around the world.
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Affiliation(s)
- Sohaib Ismail
- Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China; (S.I.); (Z.N.); (N.Y.); (A.D.O.)
| | - Bo Jiang
- College of Lifescience and Technology, Yangtze Normal University, Chongqing 408100, China;
| | - Zohreh Nasimi
- Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China; (S.I.); (Z.N.); (N.Y.); (A.D.O.)
| | - M. Inam-ul-Haq
- Department of Plant Pathology, PMAS-Arid Agriculture University, Rawalpindi 44000, Pakistan;
| | - Naoki Yamamoto
- Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China; (S.I.); (Z.N.); (N.Y.); (A.D.O.)
| | - Andrews Danso Ofori
- Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China; (S.I.); (Z.N.); (N.Y.); (A.D.O.)
| | - Nawab Khan
- Department of Agricultural Economics, Sichuan Agricultural University, Chengdu 611130, China;
| | - Muhammad Arshad
- Department of Microbiology, Sichuan Agricultural University, Chengdu 611130, China;
| | - Kumail Abbas
- Institute of Horticulture, Sichuan Agricultural University, Chengdu 611130, China;
| | - Aiping Zheng
- Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China; (S.I.); (Z.N.); (N.Y.); (A.D.O.)
- Correspondence:
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Prieto MC, Lapaz MI, Lucini EI, Pianzzola MJ, Grosso NR, Asensio CM. Thyme and suico essential oils: promising natural tools for potato common scab control. PLANT BIOLOGY (STUTTGART, GERMANY) 2020; 22:81-89. [PMID: 31539455 DOI: 10.1111/plb.13048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Potato common scab is a worldwide disease mainly caused by Streptomyces scabiei. It seriously affects potato crops by decreasing tuber quality. Essential oils (EO) are natural products with recognised antimicrobial properties. In this research, the antibacterial activities of thyme, oregano, suico and mint EO against S. scabiei were analysed. Infected tubers and soil samples were used for bacterial isolation; the obtained isolates were genetically identified. The chemical composition of the EO was determined by GC-MS. The broth microdilution method was used to analyse antibacterial properties of EO. Thirty-one bacterial isolates were obtained. The isolate chosen for antibacterial assays was morpho-physiologically and genetically identified as S. scabiei. Thyme EO was mainly composed of thymol and o-cymene; suico EO of dihydrotagetone, trans-tagetone and verbenone; oregano EO of trans-sabinene hydrate, thymol and ɣ-terpinene; and mint EO of menthone and menthol. All the EO tested were effective against S. scabiei, but thyme and suico EO were the most successful, with a minimum inhibitory concentration of 0.068 g·l-1 and 0.147 g·l-1 , respectively, and a minimum bactericidal concentration of 0.137 g·l-1 and 0.147 g·l-1 , respectively. Scanning electron microscopy showed similar damage caused by both thyme and suico EO to the bacterial envelope. Total phenolic content of EO was not related to their antibacterial activity. Thyme and suico EO are effective antibacterial agents against S. scabiei, impeding bacterial viability and disturbing the bacterial cell envelope. These EO are promising tools for control of potato common scab.
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Affiliation(s)
- M C Prieto
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - M I Lapaz
- Área de Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - E I Lucini
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina
| | - M J Pianzzola
- Área de Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - N R Grosso
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina
| | - C M Asensio
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba (UNC), Córdoba, Argentina
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Li Y, Liu J, Díaz-Cruz G, Cheng Z, Bignell DRD. Virulence mechanisms of plant-pathogenic Streptomyces species: an updated review. MICROBIOLOGY-SGM 2019; 165:1025-1040. [PMID: 31162023 DOI: 10.1099/mic.0.000818] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gram-positive Actinobacteria from the genus Streptomyces are best known for their morphological complexity and for their ability to produce numerous bioactive specialized metabolites with useful applications in human and veterinary medicine and in agriculture. In contrast, the ability to infect living plant tissues and to cause diseases of root and tuber crops such as potato common scab (CS) is a rare attribute among members of this genus. Research on the virulence mechanisms of plant-pathogenic Streptomyces spp. has revealed the importance of the thaxtomin phytotoxins as key pathogenicity determinants produced by several species. In addition, other phytotoxic specialized metabolites may contribute to the development or severity of disease caused by Streptomyces spp., along with the production of phytohormones and secreted proteins. A thorough understanding of the molecular mechanisms of plant pathogenicity will enable the development of better management procedures for controlling CS and other plant diseases caused by the Streptomyces.
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Affiliation(s)
- Yuting Li
- Department of Biology, Memorial University of Newfoundland, St John's, NL A1B 3X9, Canada
| | - Jingyu Liu
- Department of Biology, Memorial University of Newfoundland, St John's, NL A1B 3X9, Canada
| | - Gustavo Díaz-Cruz
- Department of Biology, Memorial University of Newfoundland, St John's, NL A1B 3X9, Canada
| | - Zhenlong Cheng
- Department of Biology, Memorial University of Newfoundland, St John's, NL A1B 3X9, Canada
| | - Dawn R D Bignell
- Department of Biology, Memorial University of Newfoundland, St John's, NL A1B 3X9, Canada
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Lapaz MI, López A, Huguet-Tapia JC, Pérez-Baldassari MF, Iglesias C, Loria R, Moyna G, Pianzzola MJ. Isolation and structural characterization of a non-diketopiperazine phytotoxin from a potato pathogenic Streptomyces strain. Nat Prod Res 2018; 33:2951-2957. [PMID: 30304960 DOI: 10.1080/14786419.2018.1511554] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Two Streptomyces spp. strains responsible for potato common scab infections in Uruguay which do not produce diketopiperazines were identified through whole-genome sequencing, and the virulence factor produced by one of them was isolated and characterized. Phylogenetic analysis showed that both pathogenic strains can be identified as S. niveiscabiei, and the structure of the phytotoxin was elucidated as that of the polyketide desmethylmensacarcin using MS and NMR methods. The metabolite is produced in yields of ∼200 mg/L of culture media, induces deep necrotic lesions on potato tubers, stuns root and shoot growth in radish seedlings, and is comparatively more aggressive than thaxtomin A. This is the first time that desmethylmensacarcin, a member of a class of compounds known for their antitumor and antibiotic activity, is associated with phytotoxicity. More importantly, it represents the discovery of a new virulence factor related to potato common scab, an economically-important disease affecting potato production worldwide.
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Affiliation(s)
- María Inés Lapaz
- a Área Microbiología, Departamento de Biociencias, Facultad de Química, UdelaR , Montevideo , Uruguay
| | - Andrés López
- b Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, UdelaR , Paysandú , Uruguay
| | - José Carlos Huguet-Tapia
- c Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida , Gainesville , FL , USA
| | | | - Cesar Iglesias
- a Área Microbiología, Departamento de Biociencias, Facultad de Química, UdelaR , Montevideo , Uruguay
| | - Rosemary Loria
- c Plant Pathology Department, Institute of Food and Agricultural Sciences, University of Florida , Gainesville , FL , USA
| | - Guillermo Moyna
- b Laboratorio de Fisicoquímica Orgánica, Departamento de Química del Litoral, CENUR Litoral Norte, UdelaR , Paysandú , Uruguay
| | - María Julia Pianzzola
- a Área Microbiología, Departamento de Biociencias, Facultad de Química, UdelaR , Montevideo , Uruguay
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