10,388 results match your criteria Burkholderia

Isolation, Identification, and Characterization of an Efficient Siderophore Producing Bacterium From Heavy Metal Contaminated Soil.

Curr Microbiol 2022 Jun 25;79(8):227. Epub 2022 Jun 25.

Zhejiang University Water Technology Co., Ltd., Hangzhou, China.

An efficient siderophore producing strain, YQ9, was isolated from heavy metal contaminated soil and identified as Burkholderia vietnamiensis. To the best of our known, the strain owns the highest siderophore producing capacity among genus Burkholderia with 96.6% siderophore unit. Read More

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Progressive dysbiosis of human orodigestive microbiota along the sequence of gastroesophageal reflux, Barrett's esophagus, and esophageal adenocarcinoma.

Int J Cancer 2022 Jun 24. Epub 2022 Jun 24.

Department of Pathology, NYU School of Medicine, New York, New York, USA.

The incidence of esophageal adenocarcinoma (EA) has drastically increased in the United States since 1970s for unclear reasons. We hypothesized that the widespread usage of antibiotics has increased the procarcinogenic potential of the orodigestive microbiota along the sequence of gastroesophageal reflux (GR), Barrett's esophagus (BE), and EA phenotypes. This case control study included normal controls (NC) and three disease phenotypes GR, BE, and EA. Read More

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First report of Burkholderia gladioli causing bacterial panicle blight of rice in Malaysia.

Plant Dis 2022 Jun 24. Epub 2022 Jun 24.

Universiti Putra Malaysia Fakulti Pertanian, 119196, Plant Protection, Faculty of Agriculture, UPM, 43400 Serdang Selangor, MALAYSIA, Serdang, Malaysia, 43400;

Rice (Oryza sativa) is a staple food for most of the world's populations, particularly in Asia (Gumma et al. 2011). The rice sector provides Malaysians with a food supply, food sufficiency, and income for growers (Man et al. Read More

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Alien invasive successfully acquires nutrients by investing in below-ground biomass compared to native in nutrient-amended soils in South Africa.

AoB Plants 2022 Jun 26;14(3):plac026. Epub 2022 May 26.

School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa.

Soils in grasslands and savannas of southern Africa are acidic and nutrient-poor. Legume plants, such as and alien invasive , are a major component of the vegetation there. can establish in drought-prone environments, and is invasive in high rainfall areas. Read More

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Phylogenetic Characterization and Genome Sequence Analysis of Strains Isolated in Thailand as the Causal Agent of Rice Bacterial Panicle Blight.

Pathogens 2022 Jun 11;11(6). Epub 2022 Jun 11.

Department of Plant Pathology, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand.

is one of the most critical rice-pathogenic bacteria, and it causes bacterial panicle blight (BPB) in rice plants. In 2017, BPB symptoms were observed from rice fields in Chiang Rai, Northern Thailand. Sixty-one isolates obtained from the symptomatic panicles of rice were initially identified as by polymerase chain reaction (PCR) using species-specific primers. Read More

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Sequencing-Based Genotyping of Pakistani Strains: A Useful Way for Investigating Glanders Outbreaks.

Pathogens 2022 May 24;11(6). Epub 2022 May 24.

Institute for Bacterial Infections and Zoonoses, Friedrich-Loeffler-Institute, Naumburger Str. 96a, 07743 Jena, Thuringia, Germany.

() is a host-adapted equine pathogen that causes glanders, a re-emerging zoonotic disease, which is endemic in Pakistan and other developing countries and seriously impacts the global equine movement. Due to globalization, the geographical restriction of diseases vanishes and the lack of awareness of and experience with eradicated diseases in industrialized countries also promotes the re-introduction of infections in these regions. Owing to the high equine population, the Pakistani province Punjab is a potential hotspot where several glanders outbreaks have been seen over last two decades. Read More

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Development of Droplet Digital PCR Assay for Detection of Seed-Borne and Causing Bacterial Panicle Blight Disease of Rice.

Microorganisms 2022 Jun 15;10(6). Epub 2022 Jun 15.

State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang Province Key Laboratory of Biology of Crop Pathogens and Insects, Institute of Biotechnology, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China.

Bacterial panicle blight of rice or bacterial grain rot of rice is a worldwide rice disease. and are the causal agents. The early and accurate detection of seed-borne and is critical for domestic and international quarantine and effective control of the disease. Read More

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Specific Detection and Enumeration of Complex by Flow Cytometry Using a Fluorescence-Labeled Oligonucleotide Probe.

Microorganisms 2022 Jun 7;10(6). Epub 2022 Jun 7.

Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA.

complex (BCC) contamination has resulted in recalls of non-sterile pharmaceutical products. The fast, sensitive, and specific detection of BCC is critical for ensuring the quality and safety of pharmaceutical products. In this study, a rapid flow cytometry-based detection method was developed using a fluorescence-labeled oligonucleotide probe that specifically binds a KefB/KefC membrane protein sequence within BCC. Read More

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Assessing the Tsetse Fly Microbiome Composition and the Potential Association of Some Bacteria Taxa with Trypanosome Establishment.

Microorganisms 2022 May 31;10(6). Epub 2022 May 31.

Centre for Research in Infectious Diseases (CRID), Yaoundé P.O. Box 13591, Cameroon.

The tsetse flies, biological vectors of African trypanosomes, harbour a variety of bacteria involved in their vector competence that may help in developing novel vector control tools. This study provides an inventory of tsetse bacterial communities in Cameroon and explores their possible associations with trypanosome establishment in . High throughput sequencing of the V3-V4 hypervariable region of the bacterial 16S rRNA gene, with subsequent metagenomic, multivariate, and association analyses, were used to investigate the levels and patterns of microbial diversity in four tsetse species. Read More

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A Case Study Demonstrates That the Litter of the Rare Species Composed of Different Tissues Can Affect the Chemical Properties and Microbial Community Diversity in Topsoil.

Microorganisms 2022 May 30;10(6). Epub 2022 May 30.

College of Forestry, Guizhou University, Guiyang 550025, China.

The decomposition of litter plays an important role in the return of forest soil nutrients, as well as the growth and productivity of plants. With this study, we aimed to determine the impact of litter mulching on different tissues of , a rare Chinese endemic species. In particular, seeds and pericarp are easily overlooked components of litter. Read More

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A Seed-Borne Bacterium of Rice, BB1, Protects Rice from the Seedling Rot Caused by the Bacterial Pathogen .

Life (Basel) 2022 May 26;12(6). Epub 2022 May 26.

Crop Stress Management Group, Division of Plant Molecular Regulation Research, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba 305-8602, Ibaraki, Japan.

Seedling rot, caused by the bacterial pathogen , is a major disease of rice. It originates from pathogen-contaminated seeds and is thus mainly controlled by pesticide treatments of seeds. We previously demonstrated that the seed-borne bacteria of rice may be a useful and sustainable alternative to pesticides to manage seedling rot, but they are limited in terms of variety. Read More

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Kinetic Modeling, Thermodynamic Approach and Molecular Dynamics Simulation of Thermal Inactivation of Lipases from and .

Int J Mol Sci 2022 Jun 19;23(12). Epub 2022 Jun 19.

Department of Biotechnology and Food Science, Area of Biochemistry and Molecular Biology, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain.

The behavior against temperature and thermal stability of enzymes is a topic of importance for industrial biocatalysis. This study focuses on the kinetics and thermodynamics of the thermal inactivation of Lipase PS from and Palatase from . Thermal inactivation was investigated using eight inactivation models at a temperature range of 40-70 °C. Read More

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Bacterial Resistance to Antibiotics and Clonal Spread in COVID-19-Positive Patients on a Tertiary Hospital Intensive Care Unit, Czech Republic.

Antibiotics (Basel) 2022 Jun 8;11(6). Epub 2022 Jun 8.

Department of Microbiology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, 779 00 Olomouc, Czech Republic.

This observational retrospective study aimed to analyze whether/how the spectrum of bacterial pathogens and their resistance to antibiotics changed during the worst part of the COVID-19 pandemic (1 November 2020 to 30 April 2021) among intensive care patients in University Hospital Olomouc, Czech Republic, as compared with the pre-pandemic period (1 November 2018 to 30 April 2019). A total of 789 clinically important bacterial isolates from 189 patients were cultured during the pre-COVID-19 period. The most frequent etiologic agents causing nosocomial infections were strains of (17%), (11%), (10%), coagulase-negative staphylococci (9%), (8%), (6%), (5%), (5%) and (5%). Read More

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The impact of synthetic musk compounds in biofilms from drinking water bacteria.

J Hazard Mater 2022 Aug 19;436:129185. Epub 2022 May 19.

LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal. Electronic address:

Musk fragrances have been detected in drinking water (DW) at trace concentrations. However, their impact on the microbial quality of DW has been disregarded. This work provides a pioneer evaluation of the effects of two synthetic musks contaminants, tonalide (AHTN) and galaxolide (HHCB), in microbial biofilms formed on two different surfaces, polyvinyl chloride (PVC) and stainless steel AISI 316 (SS316). Read More

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Andrographolide stabilized-silver nanoparticles overcome ceftazidime-resistant Burkholderia pseudomallei: study of antimicrobial activity and mode of action.

Sci Rep 2022 Jun 23;12(1):10701. Epub 2022 Jun 23.

Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.

Burkholderia pseudomallei (B. pseudomallei) is a Gram-negative pathogen that causes melioidosis, a deadly but neglected tropical disease. B. Read More

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Melioidosis: an unusual diagnosis for deep temporal and masticatory space infection following trauma.

BMJ Case Rep 2022 Jun 22;15(6). Epub 2022 Jun 22.

Oral & Maxillofacial Surgery, AB Shetty Memorial Institute of Dental Sciences, Mangalore, Karnataka, India.

We report a patient in his early 70s, with an alleged history of trauma to the right temporal region, following which a swelling developed. A week later, erythematous changes, throbbing pain and occasional fever spikes were noted. A month after the initial trauma, he presented to our institution with necrosed skin over the right temporal region and swelling extending up to the vertex of the skull. Read More

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Genotyping of Burkholderia pseudomallei Isolated From Patients in South-Western Coastal Region of India.

Curr Microbiol 2022 Jun 22;79(8):226. Epub 2022 Jun 22.

Microbiology Division, Defence Research & Development Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India.

Burkholderia pseudomallei is the causative agent of melioidosis. Various tools have been used to determine the genetic diversity in B. pseudomallei isolates. Read More

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[Screening and identification of a strain and optimization of its phosphate solubilizing capacity].

Ying Yong Sheng Tai Xue Bao 2022 Jun;33(6):1669-1678

College of Chemistry and Che-mical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.

In order to solve the problem that soil soluble phosphorus content in most cultivated land in China is insufficient and the plant growth is inhibited, a phosphate solubilizing microorganism (PB) was screened and identified, and its phosphate solubilizing performance was optimized. The results showed that the PB strain was belonged to . It had the ability of nitrogen fixation and indole-3-acetic acid (IAA) secretion, as well as a certain inhibitory effect on . Read More

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Leads and hurdles to sustainable microbial bioplastic production.

Chemosphere 2022 Jun 18;305:135390. Epub 2022 Jun 18.

College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712 100, China. Electronic address:

Indiscriminate usage, disposal and recalcitrance of petroleum-based plastics have led to its accumulation leaving a negative impact on the environment. Bioplastics, particularly microbial bioplastics serve as an ecologically sustainable solution to nullify the negative impacts of plastics. Microbial production of biopolymers like Polyhydroxyalkanoates, Polyhydroxybutyrates and Polylactic acid using renewable feedstocks as well as industrial wastes have gained momentum in the recent years. Read More

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Unveiling the risks and critical mechanisms of polyhexamethylene guanidine on the antibiotic resistance genes propagation during sludge fermentation process.

Bioresour Technol 2022 Jun 17;359:127488. Epub 2022 Jun 17.

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, China. Electronic address:

This study mainly investigated the environmental risks of polyhexamethylene guanidine (PHMG) occurred in waste activated sludge (WAS) on the antibiotic resistance genes (ARGs) spread during anaerobic fermentation, and disclosed the critical mechanisms. The total ARGs abundance was increased by 32.2-46. Read More

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Bioinspired Rhamnolipid Protects Wheat Against Through Mainly Direct Antifungal Activity and Without Major Impact on Leaf Physiology.

Front Plant Sci 2022 3;13:878272. Epub 2022 Jun 3.

Joint Research Unit 1158 BioEcoAgro, Junia, Univ. Lille, Univ. Liège, UPJV, Univ. Artois, ULCO, INRAE, Lille, France.

Rhamnolipids (RLs), glycolipids biosynthesized by the and genera, are known to display various activities against a wide range of pathogens. Most previous studies on RLs focused on their direct antimicrobial activity, while only a few reports described the mechanisms by which RLs induce resistance against phytopathogens and the related fitness cost on plant physiology. Here, we combined transcriptomic and metabolomic approaches to unravel the mechanisms underlying RL-induced resistance in wheat against the hemibiotrophic fungus , a major pathogen of this crop. Read More

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Systemic Melioidosis Presenting as Septic Arthritis.

Cureus 2022 May 15;14(5):e25029. Epub 2022 May 15.

Clinical Medicine, Eastern University, Sri Lanka, Colombo, LKA.

Melioidosis is a pyogenic infection that is potentially fatal, caused by the bacterium , which is commonly a soilborne pathogen.It is endemic in the Indian subcontinent, northern Australia, and Southeast Asia. Melioidosis has a wide spectrum of clinical manifestations that can mimic various diseases. Read More

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Hierarchical regulation of Burkholderia glumae type III secretion system by GluR response regulator and Lon protease.

Mol Plant Pathol 2022 Jun 19. Epub 2022 Jun 19.

Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.

Expression of type III secretion system (T3SS) genes, which are important for the virulence of phytopathogenic bacteria, is induced in the plant apoplastic environment or artificially amended growth conditions. Wild-type Burkholderia glumae BGR1, which causes rice panicle blight, induced a hypersensitive response (HR) in tobacco plants, whereas the T3SS genes were not significantly expressed in the commonly used hrp induction medium. T3SS gene expression in B. Read More

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Cyperus rotundus L. drives arable soil infertile by changing the structure of soil bacteria in the rhizosphere, using a maize field as an example.

Environ Sci Pollut Res Int 2022 Jun 17. Epub 2022 Jun 17.

Guangxi Key Laboratory of Agrio-Environment and Agric-Product Safety, National Demonstration Center for Experimental Plant Science Education, College of Agriculturo, Guangxi University, Nanning, Guangxi, 530004, People's Republic of China.

Rhizosphere microorganisms can greatly affect plant growth, especially the plant growth-promoting rhizobacteria (PGPR), which can improve plant root development and growth because they contain various biological functions including nitrogen fixation, phosphate solubilization, and phytosiderophore production. This study demonstrates that Cyperus rotundus L. is capable of developing and forming complex underground reproductive systems at arbitrary burial depths and cutting modes due to its extremely strong multiplication and regeneration ability. Read More

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Discovery of deoxyribonuclease II-like proteins in bacteria.

Mol Phylogenet Evol 2022 Jun 14;174:107554. Epub 2022 Jun 14.

Department of Biology, Faculty of Sciences, Eskisehir Technical University, Yunus Emre Campus, 26470 Eskisehir, Turkey.

Deoxyribonuclease II (DNase II) is one of the earliest enzymes discovered in the history of biochemistry. Its role in apoptosis and development has been documented with great detail in eukaryotes. Prior in silico analyses showed its complete absence in bacterial genomes, with the exception of single bacterial genus: Burkholderia. Read More

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Impact of disinfectants on the intestinal bacterial symbionts and immunity of silkworm (Bombyx mori L.).

Environ Sci Pollut Res Int 2022 Jun 17. Epub 2022 Jun 17.

Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, Guizhou Province, People's Republic of China.

The insect egg surface can serve as a vehicle for vertical symbiont transmission from the maternal parent to its offspring. Hypochlorite and formaldehyde are two common disinfectants used for insect egg surface sterilization. Here, we explored the intestinal microecology and immune response profile of the silkworm Bombyx mori strain Dazao after disinfectant exposure by using high-throughput sequencing technology and real-time PCR analysis. Read More

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The Effect of Syringic Acid and Phenoxy Herbicide 4-chloro-2-methylphenoxyacetic acid (MCPA) on Soil, Rhizosphere, and Plant Endosphere Microbiome.

Front Plant Sci 2022 31;13:882228. Epub 2022 May 31.

Environmental Biology, Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium.

The integration of phytoremediation and biostimulation can improve pollutant removal from the environment. Plant secondary metabolites (PSMs), which are structurally related to xenobiotics, can stimulate the presence of microbial community members, exhibiting specialized functions toward detoxifying, and thus mitigating soil toxicity. In this study, we evaluated the effects of enrichment of 4-chloro-2-methylphenoxyacetic acid (MCPA) contaminated soil (unplanted and zucchini-planted) with syringic acid (SA) on the bacterial community structure in soil, the rhizosphere, and zucchini endosphere. Read More

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Insecticidal Serralysin of Is Detoxified in M3 Midgut Region of .

Front Microbiol 2022 31;13:913113. Epub 2022 May 31.

Metabolomics Research Center for Functional Materials, Kyungsung University, Busan, South Korea.

insect indiscriminately acquires not only the symbiotic bacterium , but also entomopathogens that are abundant in the soil feeding. However, it is unclear how the host insect survives oral infections of entomopathogens. A previous study suggested that serralysin, a potent virulence factor produced by , suppresses cellular immunity by degrading adhesion molecules, thereby contributing to bacterial pathogenesis. Read More

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Comprehensive approaches for the detection of Burkholderia pseudomallei and diagnosis of melioidosis in human and environmental samples.

Microb Pathog 2022 Jun 13;169:105637. Epub 2022 Jun 13.

Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia. Electronic address:

Melioidosis is endemic in Southeast Asia and northern Australia. The causative agent of melioidosis is a Gram-negative bacterium, Burkholderia pseudomallei. Its invasion can be fatal if melioidosis is not treated promptly. Read More

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A Bacterial Isolate Capable of Quenching Both Diffusible Signal Factor- and -Acylhomoserine Lactone-Family Quorum Sensing Signals Shows Much Enhanced Biocontrol Potencies.

J Agric Food Chem 2022 Jun 16. Epub 2022 Jun 16.

Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China.

-Acylhomoserine lactone (AHL) and diffusible signal factor (DSF) molecules are two families of widely conserved quorum sensing (QS) signals. Quorum quenching (QQ) via enzymatic inactivation of QS signals is a promising strategy of biocontrol. In the search for biocontrol agent quenching both AHL and DSF signals, it has been recently identified that DSF-quenching biocontrol agent sp. Read More

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