keyword
MENU ▼
Read by QxMD icon Read
search

microbes

keyword
https://www.readbyqxmd.com/read/28737492/asm-microbe-2017
#1
John McConnell
No abstract text is available yet for this article.
July 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28736901/food-waste-conversion-to-microbial-polyhydroxyalkanoates
#2
REVIEW
Chad Nielsen, Asif Rahman, Asad Ur Rehman, Marie K Walsh, Charles D Miller
Polyhydroxyalkanoates (PHAs) are biopolymers with desirable material properties similar to petrochemically derived plastics. PHAs are naturally produced by a wide range of microorganisms as a carbon storage mechanism and can accumulate to significantly high levels. PHAs are an environmentally friendly alternative to their petroleum counterparts because they can be easily degraded, potentially reducing the burden on municipal waste systems. Nevertheless, widespread use of PHAs is not currently realistic due to a variety of factors...
July 24, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28736695/comparative-evaluation-of-wastewater-treatment-microbial-fuel-cells-in-terms-of-organics-removal-waste-sludge-production-and-electricity-generation
#3
Yusuke Asai, Morio Miyahara, Atsushi Kouzuma, Kazuya Watanabe
Microbial fuel cells (MFCs) are devices that exploit living microbes for electricity generation coupled to organics degradation. MFCs are expected to be applied to energy-saving wastewater treatment (WWT) as alternatives to activated-sludge reactors (ASRs). Although extensive laboratory studies have been performed to develop technologies for WWT-MFCs, limited information is available for comparative evaluation of MFCs and ASRs in terms of organics removal and waste-sludge production. In the present study, laboratory WWT experiments were performed using cassette-electrode MFCs and ASRs that were continuously supplied either with artificial domestic wastewater (ADW) containing starch and peptone or with artificial industrial wastewater (AIW) containing methanol as the major organic matter...
2017: Bioresources and Bioprocessing
https://www.readbyqxmd.com/read/28736159/a-novel-ccr-2-tlr-2-triggered-signaling-in-murine-peritoneal-macrophages-intensifies-bacterial-staphylococcus-aureus-killing-by-reactive-oxygen-species-through-tnf-r1
#4
Ajeya Nandi, Biswadev Bishayi
Macrophages are remarkably versatile in their ability to recognize and respond to a wide range of stimuli by expressing a variety of surface and intracellular receptors and triggering multiple signal transduction pathways. The onset of microbial infection is primarily determined by the initial contacts made by the microbes with the host macrophages. Although there prevail a relationship between the chemokine receptor and Toll like receptors during disease, particularly TLR-2 and CCR-2 signaling interdependence on each other has not been yet investigated during acute staphylococcal infection...
July 20, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28736087/sphingomonads-in-microbe-assisted-phytoremediation-tackling-soil-pollution
#5
REVIEW
Michael Gatheru Waigi, Kai Sun, Yanzheng Gao
Soil pollution has become a major concern in various terrestrial ecosystems worldwide. One in situ soil bioremediation strategy that has gained popularity recently is microbe-assisted phytoremediation, which is promising for remediating pollutants. Sphingomonads, a versatile bacteria group comprising four well-known genera, are ubiquitous in vegetation grown in contaminated soils. These Gram-negative microbes have been investigated for their ability to induce innate plant growth-promoting (PGP) traits, including the formation of phytohormones, siderophores, and chelators, in addition to their evolutionary adaptations enabling biodegradation and microbe-assisted removal of contaminants...
July 20, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/28735961/binding-of-pmclipsp2-to-microbial-cell-wall-components-and-activation-of-the-propo-activating-system-in-the-black-tiger-shrimp-penaeus-monodon
#6
Narach Khoratanakulchai, Piti Amparyup, Anchalee Tassanakajon
Clip domain serine proteinases (ClipSPs) play an important role in the prophenoloxidase-activating (proPO) system. In the shrimp Penaeus monodon, the ClipSP PmClipSP2 has been previously shown to bind to microbial polysaccharides (LPS and β-1,3-glucan) and likely activates the proPO system. To reveal the binding site of the PmClipSP2 protein, the N-terminal clip domain (Clip-PmClipSP) and C-terminal SP domain (SP-PmClipSP2) were separately cloned. The recombinant proteins were then assayed for their binding properties and involvement in proPO activation...
July 20, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28735426/diet-versus-phylogeny-a-comparison-of-gut-microbiota-in-captive-colobine-monkey-species
#7
Vanessa L Hale, Chia L Tan, Kefeng Niu, Yeqin Yang, Rob Knight, Qikun Zhang, Duoying Cui, Katherine R Amato
Both diet and host phylogeny shape the gut microbial community, and separating out the effects of these variables can be challenging. In this study, high-throughput sequencing was used to evaluate the impact of diet and phylogeny on the gut microbiota of nine colobine monkey species (N = 64 individuals). Colobines are leaf-eating monkeys that fare poorly in captivity-often exhibiting gastrointestinal (GI) problems. This study included eight Asian colobines (Rhinopithecus brelichi, Rhinopithecus roxellana, Rhinopithecus bieti, Pygathrix nemaeus, Nasalis larvatus, Trachypithecus francoisi, Trachypithecus auratus, and Trachypithecus vetulus) and one African colobine (Colobus guereza)...
July 22, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28735410/rhizosphere-sampling-protocols-for-microbiome-16s-18s-its-rrna-library-preparation-and-enrichment-for-the-isolation-of-drought-tolerance-promoting-microbes
#8
Venkatachalam Lakshmanan, Prasun Ray, Kelly D Craven
Natural plant microbiomes are abundant and have a remarkably robust composition, both as epiphytes on the plant surface and as endophytes within plant tissues. Microbes in the former "habitat" face limited nutrients and harsh environmental conditions, while those in the latter likely lead a more sheltered existence. The most populous and diverse of these microbiomes are associated with the zone around the plant roots, commonly referred to as the rhizosphere. A majority of recent studies characterize these plant-associated microbiomes by community profiling of bacteria and fungi, using amplicon-based marker genes and next-generation sequencing (NGS)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735391/toward-a-resilient-functional-microbiome-drought-tolerance-alleviating-microbes-for-sustainable-agriculture
#9
Venkatachalam Lakshmanan, Prasun Ray, Kelly D Craven
In recent years, the utilization of novel sequencing techniques opened a new field of research into plant microbiota and was used to explore a wide diversity of microorganisms both inside and outside of plant host tissues, i.e., the endosphere and rhizosphere, respectively. An early realization from such research was that species richness and diversity of the plant microbiome are both greater than believed even a few years ago, and soil is likely home to the most abundant and diverse microbial habitats known...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735356/evaluation-of-anthelmintic-antimicrobial-and-antioxidant-activity-of-chenopodium-album
#10
Bashir A Lone, M Z Chishti, Fayaz Ahmad Bhat, Hidayatullah Tak, Suhaib A Bandh, Abida Khan
The objective of this study was to evaluate the anthelmintic, antimicrobial and antioxidant activities of Chenopodium album against gastrointestinal nematodes of sheep and some pathogenic microbes. A worm motility inhibition assay was used for in vitro study, and a faecal egg count reduction assay was used for an in vivo study. Various concentrations ranging from 100 to 500 μg/ml of the extract were subjected to antimicrobial screening by disc diffusion method against four selected bacterial (Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas multocida and Escherichia coli) and two fungal (Aspergillus flavus and Candida albicans) strains in order to estimate the medicinal potential of the herb...
July 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28734589/phosphorus-and-cu-2-removal-by-periphytic-biofilm-stimulated-by-upconversion-phosphors-doped-with-pr-3-li
#11
Yan Zhu, Jianhong Zhang, Ningyuan Zhu, Jun Tang, Junzhuo Liu, Pengfei Sun, Yonghong Wu, Po Keung Wong
Upconversion phosphors (UCPs) can convert visible light into luminescence, such as UV, which can regulate the growth of microbes. Based on these fundamentals, the community composition of periphytic biofilms stimulated by UCPs doped with Pr(3+)-Li(+) was proposed to augment the removal of phosphorus (P) and copper (Cu). Results showed that the biofilms with community composition optimized by UCPs doped with Pr(3+)-Li(+) had high P and Cu(2+) removal rates. This was partly due to overall bacterial and algal abundance and biomass increases...
July 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28733762/reconsidering-betaine-as-a-natural-anti-heat-stress-agent-in-poultry-industry-a-review
#12
REVIEW
Muhammad Saeed, Daryoush Babazadeh, Muhammad Naveed, Muhammad Asif Arain, Faiz Ul Hassan, Sun Chao
Betaine is found ubiquitously in plants, animals, microorganisms, and rich dietary sources including seafood, spinach, and wheat bran. The chief physiological role of betaine is to function as a methyl donor and an osmolyte. Betaine also acts as an osmolyte, to maintain the avian's cellular water and ion balance to improve the avian's capacity against heat stress via preventing dehydration and osmotic inactivation. It helps in maintaining the protective osmolytic activity, especially in heat-stressed birds...
July 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28733289/an-enterotoxin-like-binary-protein-from-pseudomonas-protegens-with-potent-nematicidal-activity
#13
Jun-Zhi Wei, Daniel L Siehl, Zhenglin Hou, Barbara Rosen, Jarred Oral, Christopher G Taylor, Gusui Wu
Soil microbes are a major food source for free-living soil nematodes. It is known that certain soil bacteria have evolved systems to combat predation. We identified the nematode-antagonistic Pseudomonas protegens strain 15G2 from screening of microbes. Through protein purification we identified a binary protein, designated as Pp-ANP, that is responsible for the nematicidal activity. This binary protein inhibits Caenorhabditis elegans growth and development by arresting larvae at L1 stage and killing older staged worms...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28733280/construction-and-optimization-of-a-heterologous-pathway-for-protocatechuate-catabolism-in-escherichia-coli-enables-bioconversion-of-model-aromatic-compounds
#14
Sonya M Clarkson, Richard J Giannone, Donna M Kridelbaugh, James G Elkins, Adam M Guss, Joshua K Michener
The production of biofuels from lignocellulose yields a substantial lignin byproduct stream that currently has few applications. Biological conversion of lignin-derived compounds into chemicals and fuels has the potential to improve the economics of lignocellulose-derived biofuels, but few microbes are able both to catabolize lignin-derived aromatic compounds and generate valuable products. While Escherichia coli has been engineered to produce a variety of fuels and chemicals, it is incapable of catabolizing most aromatic compounds...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28733133/navigating-the-gut-buffet-control-of-polysaccharide-utilization-in-bacteroides-spp
#15
REVIEW
Nathan D Schwalm, Eduardo A Groisman
Bacteroides spp. are members of the human gut microbiota that confer myriad benefits on their hosts. Among them is the provision of energy from otherwise indigestible polysaccharides comprising part of the host diet, lining the intestinal mucosal layer, and decorating the surface of other microbes. Bacteroides spp. devote ∼20% of their genomes to the transport and breakdown of a wide variety of polysaccharides, and to the regulation of these processes. Bacteroides spp. rely on different families of transcriptional regulators to ensure that carbohydrate utilization genes are expressed under specific conditions...
July 18, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28733089/a-computational-protocol-for-the-discovery-of-lead-molecules-targeting-dna-unique-to-pathogens
#16
Akhilesh Mishra, Pradeep Pant, Nirotpal Mrinal, B Jayaram
With the rapid emergence of drug resistant pathogens, it has become imperative to develop alternative medications as well as find new drug targets to overcome this crisis. Hence, this has become prime focus of several academic laboratories and pharmaceutical companies. Here, we report a computational protocol for identifying unique DNA sequence(s) in the pathogen which is absent in human and related non-pathogenic strains of the microbe. In order to use the unique sequence as drug target, the protocol, in the second step, uses virtual screening against a million compound library to identify candidate small molecules which can bind to these unique DNA targets in the pathogen only...
July 18, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28732571/examining-the-gut-bacteriome-virome-and-mycobiome-in-glucose-metabolism-disorders-are-we-on-the-right-track
#17
REVIEW
Charikleia Stefanaki, Melpomeni Peppa, George Mastorakos, George P Chrousos
Human gut microbiome is defined as the gene complement of the gut microbial community, measured via laboratory metagenomic techniques. It includes bacteriome, virome and mycobiome, which represent, respectively, the assemblages of bacteria, viruses and fungi, living in the human gut. Gut microbiota function as a living "organ" that interacts with the gastro-intestinal environment, provides nutrients and vitamins to the organism and transduces hormonal messages, essentially influencing the main metabolic pathways, including drug metabolism...
August 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28732267/understanding-the-holobiont-the-interdependence-of-plants-and-their-microbiome
#18
REVIEW
Carmen Sánchez-Cañizares, Beatriz Jorrín, Philip S Poole, Andrzej Tkacz
The holobiont is composed by the plant and its microbiome. In a similar way to ecological systems of higher organisms, the holobiont shows interdependent and complex dynamics [1,2]. While plants originate from seeds, the microbiome has a multitude of sources. The assemblage of these communities depends on the interaction between the emerging seedling and its surrounding environment, with soil being the main source. These microbial communities are controlled by the plant through different strategies, such as the specific profile of root exudates and its immune system...
July 18, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28732056/inferring-microbial-interactions-in-thermophilic-and-mesophilic-anaerobic-digestion-of-hog-waste
#19
Grace Tzun-Wen Shaw, An-Chi Liu, Chieh-Yin Weng, Chu-Yang Chou, Daryi Wang
Anaerobic digestion (AnD) is a microbiological process that converts organic waste materials into biogas. Because of its high methane content, biogas is a combustible energy source and serves as an important environmental technology commonly used in the management of animal waste generated on large animal farms. Much work has been done on hardware design and process engineering for the generation of biogas. However, little is known about the complexity of the microbiology in this process. In particular, how microbes interact in the digester and eventually breakdown and convert organic matter into biogas is still regarded as a "black box...
2017: PloS One
https://www.readbyqxmd.com/read/28731847/the-colorful-world-of-extracellular-electron-shuttles
#20
Nathaniel R Glasser, Scott H Saunders, Dianne K Newman
Descriptions of the changeable, striking colors associated with secreted natural products date back well over a century. These molecules can serve as extracellular electron shuttles (EESs) that permit microbes to access substrates at a distance. In this review, we argue that the colorful world of EESs has been too long neglected. Rather than simply serving as a diagnostic attribute of a particular microbial strain, redox-active natural products likely play fundamental, underappreciated roles in the biology of their producers, particularly those that inhabit biofilms...
July 21, 2017: Annual Review of Microbiology
keyword
keyword
121165
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"