Relevant bibliographies by topics / Streptomyces population

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Academic literature on the topic 'Streptomyces population'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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Journal articles on the topic "Streptomyces population"

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Keinath, Anthony P., and Rosemary Loria. "Melanin-producing Streptomyces spp. respond to potato plant growth and differentially to potato cultivars." Canadian Journal of Microbiology 36, no. 4 (1990): 279–85. http://dx.doi.org/10.1139/m90-048.

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Population dynamics of Streptomyces spp. producing melanoid pigments were monitored in field plots planted to the potato cultivars 'Chippewa' (susceptible to common scab) or 'Superior' (resistant), and in fallow control plots. Relative frequencies of streptomycetes most commonly isolated from soil, the rhizosphere, and potato tuber surfaces were determined during two growing seasons. Shannon indices of diversity indicated populations in soils planted to potatoes were more diverse than populations in fallow soil. In 1986, S. diastatochromogenes and S. longisporus accounted for ≥38% of all strep
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Neeno-Eckwall, Eric C., Linda L. Kinkel, and Janet L. Schottel. "Competition and antibiosis in the biological control of potato scab." Canadian Journal of Microbiology 47, no. 4 (2001): 332–40. http://dx.doi.org/10.1139/w01-010.

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Nonpathogenic, antibiotic-producing streptomycetes have been shown to reduce potato scab when added to disease-conducive soil. Spontaneous mutants of the pathogenic Streptomyces scabies RB4 that are resistant to at least one antibiotic activity produced by the nonpathogenic suppressive isolates Streptomyces diastatochromogenes strain PonSSII and S. scabies PonR have been isolated. To determine the importance of antibiosis in this biocontrol system, these mutants were investigated for their ability to cause disease in the presence of the two pathogen antagonists in a greenhouse assay. Disease c
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Meng, Qingxiao, Jingfang Yin, Noah Rosenzweig, David Douches, and Jianjun J. Hao. "Culture-Based Assessment of Microbial Communities in Soil Suppressive to Potato Common Scab." Plant Disease 96, no. 5 (2012): 712–17. http://dx.doi.org/10.1094/pdis-05-11-0441.

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A field in East Lansing, MI, showed a decline of potato common scab compared with an adjacent potato field. To confirm that the decline was due to biological factors, the soil was assayed. In the greenhouse, putative common-scab-suppressive soil (SS) was either treated with various temperatures or mixed with autoclaved SS at various ratios. Pathogenic Streptomyces scabies was incorporated into the treated soil at 106 CFU/cm3 of soil, followed by planting of either potato or radish. Disease severity was negatively correlated with the percentage of SS in the mixture and positively correlated wit
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Bowers, John H., Linda L. Kinkel, and Roger K. Jones. "Influence of disease-suppressive strains of Streptomyces on the native Streptomyces community in soil as determined by the analysis of cellular fatty acids." Canadian Journal of Microbiology 42, no. 1 (1996): 27–37. http://dx.doi.org/10.1139/m96-005.

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Analysis of cellular fatty acid profiles was used to distinguish among introduced pathogen- suppressive strains and indigenous strains of Streptomyces spp. isolated from soil of field plots established to test the efficacy of Streptomyces strains PonSSII and PonR in the biological control of potato scab. Reference libraries of fatty acid profiles were developed for a collection of known pathogenic strains and the introduced suppressive strains. Population densities of pathogen-related, suppressive, and saprophytic Streptomyces strains were determined from the relationship of field isolates to
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Nikulina, A. N., N. A. Ryabova, Y. Lu, and A. A. Zimin. "A New Bacteriophage Of The Family Siphoviridae Isolated From The Soddy-Podzolic Soils Of The Prioksko-Terrasny Nature Reserve." GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 16, no. 1 (2023): 111–18. http://dx.doi.org/10.24057/2071-9388-2022-050.

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Bacteria of the genus Streptomyces, one of the main microorganisms of soils, and their bacteriophages are important inhabitants of soil ecosystems. Important though they are, not much is known about their functional patterns and population dynamics. A question of particular interest, which is still to be understood, is how bacteriophages regulate the population dynamics of Streptomyces and how this regulation affects the soil ecosystem as a whole. Isolation and study of new Streptomyces bacteriophages can help to understand these problems. In this paper, we describe isolation of a new bacterio
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Cheng, Kun, Xiaoying Rong, Adrián A. Pinto-Tomás, Marcela Fernández-Villalobos, Catalina Murillo-Cruz, and Ying Huang. "Population Genetic Analysis of Streptomyces albidoflavus Reveals Habitat Barriers to Homologous Recombination in the Diversification of Streptomycetes." Applied and Environmental Microbiology 81, no. 3 (2014): 966–75. http://dx.doi.org/10.1128/aem.02925-14.

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ABSTRACTExamining the population structure and the influence of recombination and ecology on microbial populations makes great sense for understanding microbial evolution and speciation. Streptomycetes are a diverse group of bacteria that are widely distributed in nature and a rich source of useful bioactive compounds; however, they are rarely subjected to population genetic investigations. In this study, we applied a five-gene-based multilocus sequence analysis (MLSA) scheme to 41 strains ofStreptomyces albidoflavusderived from diverse sources, mainly insects, sea, and soil. Frequent recombin
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BOSTUBAEVA, Makpal B., Ainash P. NAUANOVA, and Rıdvan KIZILKAYA. "Influence of inoculating microbes on municipal sewage sludge composting." EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 11, no. 4 (2022): 295–302. http://dx.doi.org/10.18393/ejss.1114772.

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The influence of Ilkompost and Micromix bacterial consortium inoculation during sewage sludge (SS) with wheat straw (WS) composting was assessed. The effect of inoculation on compost quality parameters such as pH, temperature, nutrient contents and C/N, bacterial and fungal population were determined. Compared to the control treatment, the temperature of piles and population of microorganism increased after inoculated bacterial consortiums at the beginning of compost. But, WS addition did not effect on compost quality parameters and microbial population. Fungal and bacterial population, the pea
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Conn, Kenneth L., Edlira Leci, Giora Kritzman, and George Lazarovits. "A Quantitative Method for Determining Soil Populations of Streptomyces and Differentiating Potential Potato Scab-Inducing Strains." Plant Disease 82, no. 6 (1998): 631–38. http://dx.doi.org/10.1094/pdis.1998.82.6.631.

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A procedure is described for estimating Streptomyces populations in soil. Soils are air-dried, 10g quantities are shaken in plastic bags containing 0.1% water agar and homogenized with a Stomacher homogenizer, serial dilutions are plated on a semi-selective culture (STR) medium and incubated for 2 weeks at 22°C, and the Streptomyces colonies are enumerated. Use of STR medium reduced the bacterial and fungal colonies recovered from soil to levels below that of the Streptomyces spp. while not affecting the number of Streptomyces colonies compared with those enumerated on yeast malt extract mediu
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Dolya, B., T. Busche, T. S. Jørgensen, et al. "A database of sequenced genomes of different Streptomyces albus J1074 strains and uses thereof." Visnyk of Lviv University. Biological series, no. 85 (February 25, 2021): 26–34. http://dx.doi.org/10.30970/vlubs.2021.85.03.

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Streptomyces albus J1074 has recently emerged as a powerful chassis strain for natural product research and discovery, as well as model to investigate various aspects of actinobacterial biology. A number of genetic tools have been developed to facilitate the use of this strain for the aforementioned purposes. One of the promising approaches is to introduce into J1074 genome mutations that would improve the antibiotic-producing capacity of J1074. Particularly, we reported a collection of spontaneous and genomically engineered J1074 mutants carrying mutation in genes for ribosomal protein S12, R
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Tomihama, Tsuyoshi, Yatsuka Nishi, Kiyofumi Mori, et al. "Rice Bran Amendment Suppresses Potato Common Scab by Increasing Antagonistic Bacterial Community Levels in the Rhizosphere." Phytopathology® 106, no. 7 (2016): 719–28. http://dx.doi.org/10.1094/phyto-12-15-0322-r.

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Potato common scab (PCS), caused by pathogenic Streptomyces spp., is a serious disease in potato production worldwide. Cultural practices, such as optimizing the soil pH and irrigation, are recommended but it is often difficult to establish stable disease reductions using these methods. Traditionally, local farmers in southwest Japan have amended soils with rice bran (RB) to suppress PCS. However, the scientific mechanism underlying disease suppression by RB has not been elucidated. The present study showed that RB amendment reduced PCS by repressing the pathogenic Streptomyces population in y
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Dissertations / Theses on the topic "Streptomyces population"

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Tidjani, Abdoul-Razak. "Évolution génomique au sein d'une population naturelle de Streptomyces." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0159.

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Les Streptomyces sont des bactéries de la rhizosphère qui contribuent à la fertilité des sols (recyclage de la matière organique), et à la croissance et la santé des plantes. Elles possèdent parmi les plus grands génomes bactériens (12 Mb) et présentent une variabilité génétique importante. Cette variabilité connue au niveau interspécifique n’a jamais été abordée à l’échelle de la population, c’est-à-dire entre individus sympatriques appartenant à la même espèce (souches sœurs) au sein de la même niche écologique. L’objectif de ce travail est de rechercher cette diversité dans les populations
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Tidjani, Abdoul-Razak. "Évolution génomique au sein d'une population naturelle de Streptomyces." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0159.

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Les Streptomyces sont des bactéries de la rhizosphère qui contribuent à la fertilité des sols (recyclage de la matière organique), et à la croissance et la santé des plantes. Elles possèdent parmi les plus grands génomes bactériens (12 Mb) et présentent une variabilité génétique importante. Cette variabilité connue au niveau interspécifique n’a jamais été abordée à l’échelle de la population, c’est-à-dire entre individus sympatriques appartenant à la même espèce (souches sœurs) au sein de la même niche écologique. L’objectif de ce travail est de rechercher cette diversité dans les populations
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Choufa, Caroline. "Transferts d’éléments conjugatifs et mobilisation d’ADN chromosomique dans une population de Streptomyces." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0395.

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Les Streptomyces sont des bactéries ubiquistes des sols où elles interagissent avec les organismes environnants via un large répertoire de métabolites spécialisés. En étudiant une population rhizosphérique de Streptomyces (des souches de même espèce et isolées du même micro-habitat rhizosphérique), il a été montré que les flux de gènes massifs promeuvent une évolution rapide des individus, permettant leur diversification génétique et fonctionnelle dans le sol forestier. L'objectif de la recherche est de déterminer l'ampleur de ces flux de gènes au sein de la population et les mécanismes respon
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Griffiths, Scott Andrew. "Adaptation and population dynamics arising from the bacteriophage-host system ΦC31-Streptomyces coelicolor M145". Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3151/.

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Obligate micro-parasites must enter and compromise a living host cell in order to reproduce. Distinct from symbiosis and commensalism, parasitism results in host mortality or morbidity; the severity of which may be expressed in terms of virulence. Bacteriophage and viruses are ubiquitous in the environment, and localised co-existence of host with parasite is a priori evidence for mechanisms which act to mitigate virulence. When physical separation of host-parasite is not possible, molecular immunity to infection may be selected. The phage growth limitation (Pgl) system of soil bacterium Strept
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Toussaint, Maxime. "Exploitation et exploration de la diversité génétique d’une population naturelle de Streptomyces issue d’un micro-habitat sol." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0027/document.

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Les Streptomyces possédent un large arsenal enzymatique ayant des rôles importants dans le sol. Au cours de cette thèse, nous avons exploré leur diversité génétique, fonctionnelle et écologique à partir de collections provenant de sols forestiers. Ainsi, l’exploration du potentiel cellulolytique et la capacité à détecter des sucres libérés lors de l’attaque du bois par des champignons lignivores a permis de créer un biosenseur dont l’exploitation pourrait constituer un nouvel outil normatif pour la détection de la dégradation du bois. Suite à une approche de génomique comparative réalisée entr
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Egan, Sharon. "Analysis of the distribution and diversity of streptomycin biosynthetic and resistance genes in populations of Streptomyces." Thesis, University of Warwick, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343828.

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Ozaktas, Tugba. "Multiple Antibiotic Resistance Of Surface Mucus Dwelling Bacterial Populations In Freshwater Fish." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609113/index.pdf.

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Surface mucus of a freshwater fish, Alburnus alburnus (bleak), caught from Lake Mogan, situated in south of Ankara, was collected in different seasons. The total cultivable bacteria were enumerated by spread plate method on nine different media. Bacteria were isolated based on colony morphologies and pigmentation. A total of sixty bacterial isolates obtained. The mucus-dwelling bacteria were first tested for resistance against ampicillin and kanamycin<br>then streptomycin and chloramphenicol were added to the experimental set up. The resistance levels of isolates were determined in terms of fo
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Yang, Yi-Jhih, and 楊逸至. "Effects of Streptomyces saraceticus 31 and five microorganisms on the population of Meloidogyne incognita and plant growth." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/92636725863583697654.

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碩士<br>國立中興大學<br>植物病理學系所<br>99<br>Numerous microorganisms have the potential to control disease and to promote plant growth, and most of them are considered rhizosphere microorganisms. Co- inoculation of more than one beneficial microorganisms was attempted in previous studies, tried to induce synergistic interaction and increase promotional ability of plant growth or control more diseases. In this study, Streptomyces saraceticus 31 (SS31) was co- inoculated with Bacillus subtilis, Trichoderma sp., phosphate solubilizing bacteria (PSB), nitrogen fixing bacteria (NFB), and mycorrhizal fungi, res
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Books on the topic "Streptomyces population"

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Egan, Sharon. Analysis of the distribution and diversity of streptomycin biosynthetic and resistance genes in populations of Streptomyces. typescript, 1999.

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Book chapters on the topic "Streptomyces population"

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Noack, Dieter, and Rudolf Geuther. "Population Genetic Processes in Continuously Cultivated Streptomyces Strains Reflect Genetic Instabilities." In Genetics and Product Formation in Streptomyces. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5922-7_35.

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Huang, Tze-Chung, Thomas J. Burr, Charles A. Smith, and Mary C. Matteson. "Managemt of Apple Blister Spot Caused by Streptomycin-Resistant Populations of Pseudomonas Syringae pv. papulans." In Developments in Plant Pathology. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5472-7_107.

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Amyes, Sebastian G. B. "7. Antibiotics." In Bacteria: A Very Short Introduction. Oxford University Press, 2022. http://dx.doi.org/10.1093/actrade/9780192895240.003.0007.

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‘Antibiotics’ begins by presenting a brief history of antibiotics, from the use of antimicrobials by indigenous populations to the discovery of penicillin by Alexander Fleming. By discovering the genus Streptomyces, Selman Waksman had identified the source of what was going to produce two-thirds of all antibiotics. Penicillin, sulphonamides, and streptomycin were all selectively toxic to bacteria without harming the human cells. The other major group of chemical antibacterials has been the quinolones and naphthyridines. We now have new methods of discovering antibiotics, including high-through
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Hopwood, David A. "The Switch to Antibiotic Production." In Streptomyces in Nature and Medicine. Oxford University PressNew York, NY, 2007. http://dx.doi.org/10.1093/oso/9780195150667.003.0008.

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Abstract From a human perspective, the most important biochemical feature of the streptomycetes is their capacity to make antibiotics. From the organism’s point of view, this is an adaptation to competition in the soil, with its teaming populations of microbes and small invertebrates of all kinds. The regulation of antibiotic production is a very sophisticated process, optimized over eons of natural selection to maximize the selective advantage of the organism.
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Conference papers on the topic "Streptomyces population"

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"RejuAgro A: A Novel Metabolite as a Sustainable Strategy for Huanglongbing and Citrus Canker Control." In Plant Health 2024. American Phytopathological Society, 2024. http://dx.doi.org/10.1094/aps-ph24-015.

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The Citrus industry faces significant challenges from Huanglongbing (HLB) and citrus canker, which have led to substantial economic losses in the United States and globally. Despite extensive research effort, effective control measures for HLB are still lacking. While antibiotics have been shown improvement in tree health, they raise concerns about bacterial antibiotic resistance, environmental contamination, antibiotic residues in fruit, and potential health risks to humans. This study investigates the potential of RejuAgro A (RAA), a natural metabolite from Pseudomonas soli strain T3-07, in
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Reports on the topic "Streptomyces population"

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Michel Jr., Frederick C., Harry A. J. Hoitink, Yitzhak Hadar, and Dror Minz. Microbial Communities Active in Soil-Induced Systemic Plant Disease Resistance. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7586476.bard.

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Induced Systemic Resistance (ISR) is a highly variable property that can be induced by compost amendment of potting media and soils. For example, previous studies showed that only 1 of 79 potting mixes prepared with different batches of mature composts produced from several different types of solid wastes were able to suppress the severity of bacterial leaf spot of radish caused by Xanthomonas campestris pv. armoraciae compared with disease on plants produced in a nonamended sphagnum peat mix. In this project, microbial consortia in the rhizosphere of plants grown in ISR-active compost-amended
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Lindow, Steven E., Shulamit Manulis, Dan Zutra, and Dan Gaash. Evaluation of Strategies and Implementation of Biological Control of Fire Blight. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568106.bard.

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The main objective of this study was to develop data that would facilitate a consistently effective method of biological control of fire blight disease to be developed and to enable its implementation for disease control by ensuring its compatibility with variations in the biological, environmental, and chemical conditions present in pear orchards. As considerable information on the pathogen and biological control of fire blight was already gathered from studies in California and elsewhere, an emphasis was placed on investigating the genetics and ecology of Erwinia amylovora, the causal agent
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Jorgensen, Frieda, Andre Charlett, Craig Swift, Anais Painset, and Nicolae Corcionivoschi. A survey of the levels of Campylobacter spp. contamination and prevalence of selected antimicrobial resistance determinants in fresh whole UK-produced chilled chickens at retail sale (non-major retailers). Food Standards Agency, 2021. http://dx.doi.org/10.46756/sci.fsa.xls618.

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Campylobacter spp. are the most common bacterial cause of foodborne illness in the UK, with chicken considered to be the most important vehicle for this organism. The UK Food Standards Agency (FSA) agreed with industry to reduce Campylobacter spp. contamination in raw chicken and issued a target to reduce the prevalence of the most contaminated chickens (those with more than 1000 cfu per g chicken neck skin) to below 10 % at the end of the slaughter process, initially by 2016. To help monitor progress, a series of UK-wide surveys were undertaken to determine the levels of Campylobacter spp. on
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