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Original Paper | 09-March-2018

A Low-Tech Bioreactor System for the Enrichment and Production of Ureolytic Microbes

Ureolysis-driven microbially induced carbonate precipitation (MICP) has recently received attention for its potential biotechnological applications. However, information on the enrichment and production of ureolytic microbes by using bioreactor systems is limited. Here, we report a low-tech down-flow hanging sponge (DHS) bioreactor system for the enrichment and production of ureolytic microbes. Using this bioreactor system and a yeast extract-based medium containing 0.17 M urea, ureolytic

Masataka Aoki, Takuya Noma, Hiroshi Yonemitsu, Nobuo Araki, Takashi Yamaguchi, Kazuyuki Hayashi

Polish Journal of Microbiology, Volume 67 , ISSUE 1, 59–65

Research Article | 22-May-2019

DEADLY MICROBES – MICROBES USED AS A BIOLOGICAL WEAPON

Karol Abramczyk, Anna Gałązka

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 4, 395–404

mini-review | 27-December-2020

Biofloc Technology: Emerging Microbial Biotechnology for the Improvement of Aquaculture Productivity

condition, which replaced the conventional external biofilter or high water exchange systems in aquaculture (Hopkins et al. 1993; Avnimelech et al. 1994). In BFT, the microbes work for regulation of water quality through the control of nitrogen, resulting in the enhancement of the microbial proteins, which functions as a source of nutrition for aquaculture species. Moreover, the microbes in BFT play a vital role in biosecurity by inhibiting the pathogenic microorganisms’ growth (Emerenciano et al. 2017

MAMDOH T. JAMAL, MOHAMMED BROOM, BANDAR A. AL-MUR, MAMDOUH AL HARBI, MOHAMMED GHANDOURAH, AHMED AL OTAIBI, MD FAZLUL HAQUE

Polish Journal of Microbiology, Volume 69 , ISSUE 4, 401–409

Research Article | 26-September-2018

Modeling Host-Microbiome Interactions in Caenorhabditis elegans

The microbiome influences host processes including nutritional availability, development, immunity, and behavioral responses. Caenorhabditis elegans is a powerful model to study molecular mechanisms of host–microbial interactions. Recent efforts have been made to profile the natural microbiome of C. elegans, laying a foundation for mechanistic studies of host–microbiome interactions in this genetically tractable model system. Studies using single-species microbes, multi-microbial systems, and

TEKLU K. GERBABA, LUKE GREEN-HARRISON, ANDRE G. BURET

Journal of Nematology, Volume 49 , ISSUE 4, 348–356

Original Paper | 04-September-2018

The Emergence of Different Functionally Equivalent PAH Degrading Microbial Communities from a Single Soil in Liquid PAH Enrichment Cultures and Soil Microcosms Receiving PAHs with and without Bioaugmentation

Polycyclic aromatic hydrocarbon (PAHs) are common soil contaminants of concern due to their toxicity toward plants, animals and microorganisms. The use of indigenous or added microbes (bioaugmentation) is commonly used for bioremediation of PAHs. In this work, the biodegradation rates and changes in the bacterial community structure were evaluated. The enrichment culture was useful for unambiguously identifying members of the soil bacterial community associated with PAH degradation and yielded

FRANCINE AMARAL PIUBELI, LIGIA GIBBI DOS SANTOS, EMILIA NARANJO FERNÁNDEZ, FLÁVIO HENRIQUE DA SILVA, LUCIA REGINA DURRANT, MATTHEW JAMES GROSSMAN

Polish Journal of Microbiology, Volume 67 , ISSUE 3, 365–375

Research Article | 21-May-2019

SPECIES DIVERSITY OF BACTERIA ASSOCIATED WITH FUNGI OF THE GENUS TUBER (TRUFFLES)

aestivum, are getting more popular and are widely cultivated, little is still known about their biology, composition and the role of their associative microbes. The aim of this study was to present the current knowledge about the bacterial communities associated with black truffles and their potential influence on the truffle life cycle and maturation.

Marta Siebyła, Dorota Hilszczańska

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 1, 28–32

Original Paper | 30-March-2017

Screening and Identification of Yeasts Antagonistic to Pathogenic Fungi Show a Narrow Optimal pH Range for Antagonistic Activity

Microbes have evolved ways of interference competition to gain advantage over their ecological competitors. The use of secreted antagonistic compounds by yeast cells is one of the prominent examples. Although this killer behavior has been thoroughly studied in laboratory yeast strains, our knowledge of the antagonistic specificity of killer effects in nature remains limited. In this study, yeast strains were collected from various niches and screened for antagonistic activity against one toxin

Pei-Hua Chen, Jui-Yu Chou

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 101–106

research-article | 30-November-2020

Entomopathogenic nematode-gastropod interactions

. Nematode interactions with insects and gastropods Nematodes associate with insects and gastropods in a variety of ways. These interactions include phoresy, necromeny, and parasitism, among others (Sudhaus, 2008). Animal-parasitic nematodes almost invariably evolved from free-living ancestors, which fed on bacteria and other microbes (Blaxter and Koutsovoulos, 2015). Many of these free-living nematodes rely on ephemeral environments such as rotting fruits or decomposing plant material. One way in which

Jacob Schurkman, Adler R. Dillman

Journal of Nematology, Volume 53 , 1–10

Mini Review | 26-August-2016

Microbial Products and Biofertilizers in Improving Growth and Productivity of Apple – a Review

The excessive use of mineral fertilizers causes many negative consequences for the environment as well as potentially dangerous effects of chemical residues in plant tissues on the health of human and animal consumers. Bio-fertilizers are formulations of beneficial micro­organisms, which upon application can increase the availability of nutrients by their biological activity and help to improve soil health. Microbes involved in the formulation of bio-fertilizers not only mobilize N and P

Walid Fediala Abd El-Gleel Mosa, Lidia Sas-Paszt, Mateusz Frąc, Paweł Trzciński

Polish Journal of Microbiology, Volume 65 , ISSUE 3, 243–251

original-paper | 27-December-2020

Benefits of Soleris® over the Conventional Method for Enumeration of Microbial Load in Salacia Herbal Extract

, and up to four instruments can be connected to a single PC, allowing any combination of 32 and 128 sample units. The Soleris® instrument with a temperature-controlled incubator is equipped with a photodiode-based optical detection system that allows the growth of microorganisms when inoculated in incubation vials containing selective growth media, supplements, and substrates specific to the microbial species to be detected. The carbon dioxide produced metabolically by the growing microbes results

SADANAND YEWALE, ZEBA FARASH, SANMAN KOLHE, SASIDHARAN SAKKAN, SHRINIVAS BHOPE, PRADNYA AMBEKAR, SRIRAM PADMANABHAN

Polish Journal of Microbiology, Volume 69 , ISSUE 4, 453–462

Research Article | 26-September-2018

A Model for Evolutionary Ecology of Disease: The Case for Caenorhabditis Nematodes and Their Natural Parasites

, cryopreservation, behavioral assays, and genomic tools. Throughout, we present avenues of research that are interesting and feasible to address with caenorhabditid nematodes and their natural parasites, ranging from the maintenance of outcrossing to the community dynamics of host-associated microbes. In combining natural relevance with the experimental power of a laboratory supermodel, these fledgling host–parasite systems can take on fundamental questions in evolutionary ecology of disease.

AMANDA K. GIBSON, LEVI T. MORRAN

Journal of Nematology, Volume 49 , ISSUE 4, 357–372

original-paper | 05-December-2019

Diversity, Virulence Factors, and Antifungal Susceptibility Patterns of Pathogenic and Opportunistic Yeast Species in Rock Pigeon (Columba livia) Fecal Droppings in Western Saudi Arabia

HUSSEIN H. ABULREESH, SAMEER R. ORGANJI, KHALED ELBANNA, GAMAL E.H. OSMAN, MESHAL H.K. ALMALKI, AHMED Y. ABDEL-MALEK, ABDULLAH A.K. GHYATHUDDIN, IQBAL AHMAD

Polish Journal of Microbiology, Volume 68 , ISSUE 4, 493–504

Original Paper | 09-March-2018

Natural Attenuation Potential of Polychlorinated Biphenyl-Polluted Marine Sediments

The marine environment in Kuwait is polluted with various hazardous chemicals of industrial origin. These include petroleum hydrocarbons, halogenated compounds and heavy metals. Bioremediation with dedicated microorganisms can be effectively applied for reclamation of the polluted marine sediments. However, information on the autochthonous microbes and their ecophysiology is largely lacking. We analyzed sediments from Shuwaikh harbor to detect polychlorinated biphenyls (PCBs) and total

Sarah Aldhafiri, Huda Mahmoud, Mohammed Al-Sarawi, Wael A. Ismail

Polish Journal of Microbiology, Volume 67 , ISSUE 1, 37–48

Research Article | 26-September-2018

Secondary Metabolites Produced by Heterorhabditis Symbionts and Their Application in Agriculture: What We Know and What to Do Next

the maintenance of a monoxenic infection in the insect host and are also known to prevent contamination of the cadaver from soil microbes and/or predation by arthropods. A few of the SM this bacteria produce have been isolated and identified, and their biological activities have also been tested in laboratory assays. Over the past two decades, analyses of the genomes of several Photorhabdus spp. have revealed the presence of SM numerous gene clusters that comprise more than 6% of these bacteria

S. PATRICIA STOCK, AYAKO KUSAKABE, ROUSEL A. OROZCO

Journal of Nematology, Volume 49 , ISSUE 4, 373–383

Research Article | 23-May-2019

PREDICTIVE MICROBIOLOGY OF FOOD

reactions. There are several main conceptual models (empirical vs. mechanistic, stochastic vs. deterministic, dynamic vs. static), in which there are model divisions depending on the type of examined microorganism or the nature of the problems caused by microbes (kinetic vs. probabilistic), described variables (first, secondary and tertiary) or the influence of environmental factors on microbial populations (growth, survival, inactivation). The new generations of models include molecular and genomic

Elżbieta Rosiak, Katarzyna Kajak-Siemaszko, Monika Trząskowska, Danuta Kołożyn-Krajewska

Postępy Mikrobiologii - Advancements of Microbiology, Volume 57 , ISSUE 3, 229–243

Article | 05-December-2017

Influence of Root Exudates and Soil on Attachment of Pasteuria penetrans to Meloidogyne arenaria

to influence the lipophilicity of the nematode surface coat, auxins and kinetins did not affect spore attachment compared with PBS. Root exudates reduced spore attachment more in sterilized soil than in natural soil. Sterilization may have eliminated microbes that consume root exudates, or altered the chemical components of the soil solution or root exudates. Root exudates caused a greater decrease in spore attachment in loamy sand than in a sandy loam soil. The sandy loam had higher clay content

CHANG LIU, PATRICIA TIMPER, PINGSHENG JI, TESFAMARIAM MEKETE, SOUMI JOSEPH

Journal of Nematology, Volume 49 , ISSUE 3, 304–310

Article | 30-November-2018

ANTIBACTERIAL EFFECT OF NATURAL OILS – AN OPPORTUNITY TO SOLVE THE PROBLEM OF ANTIBIOTIC RESISTANCE ON THE EXAMPLE OF PSEUDOMONAS SPP.

as by a combination of these methods [11–12]. They have antimicrobial activity against many pathogenic microorganisms, including food pathogens and microbes responsible for the spoilage of food products. It is believed that due to differences in the cell wall structures of Gram-positive and Gram-negative bacteria, EOs have a weaker effect against Gram-negative bacteria, but oils containing thymol and carvacrol, for example, show comparable activity in both cases. Some EOs have a comparable or

Katarzyna Leja, Kamila Szudera-Kończal, Kamila Myszka, Katarzyna Czaczyk

Postępy Mikrobiologii - Advancements of Microbiology, Volume 58 , ISSUE 2, 177–190

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