keyword
MENU ▼
Read by QxMD icon Read
search

microbial interactions

keyword
https://www.readbyqxmd.com/read/28430946/forgotten-fungi-the-gut-mycobiome-in-human-health-and-disease
#1
Chloe E Huseyin, Paul W O'Toole, Paul D Cotter, Pauline D Scanlan
The human body is home to a complex and diverse microbial ecosystem that plays a central role in host health. This includes a diversity of fungal species that is collectively referred to as our 'mycobiome'. Although research into the mycobiome is still in its infancy, its potential role in human disease is increasingly recognised. Here we review the existing literature available on the human mycobiota with an emphasis on the gut mycobiome, including how fungi interact with the human host and other microbes...
April 18, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28430942/short-term-responses-and-resistance-of-soil-microbial-community-structure-to-elevated-co2-and-n-addition-in-grassland-mesocosms
#2
Marie Simonin, Naoise Nunan, Juliette M G Bloor, Valérie Pouteau, Audrey Niboyet
Nitrogen (N) addition is known to affect soil microbial communities, but the interactive effects of N addition with other drivers of global change remain unclear. The impacts of multiple global changes on the structure of microbial communities may be mediated by specific microbial groups with different life-history strategies. Here, we investigated the combined effects of elevated CO2 and N addition on soil microbial communities using PLFA profiling in a short-term grassland mesocosm experiment. We also examined the linkages between the relative abundance of r- and K-strategist microorganisms and resistance of the microbial community structure to experimental treatments...
April 18, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28430077/host-pathogen-interactions-modulated-by-small-rnas
#3
Waqar Islam, Zujian Wu, Saif Ul Islam
Biological processes such as defense mechanisms and microbial offence strategies are regulated through RNA induced interference in eukaryotes. Genetic mutations are modulated through biogenesis of small RNAs which directly impacts upon host development. Plant defense mechanisms are regulated and supported by a diversified group of small RNAs which are involved in streamlining several RNA interference pathways leading towards the initiation of pathogen gene silencing mechanisms. In the similar context, pathogens also utilize the support of small RNAs to launch their offensive attacks...
April 21, 2017: RNA Biology
https://www.readbyqxmd.com/read/28429993/interactive-effects-of-protein-and-carbohydrates-on-production-of-microbial-metabolites-in-the-large-intestine-of-growing-pigs
#4
Marcin Taciak, Marcin Barszcz, Ewa Święch, Anna Tuśnio, Ilona Bachanek
The study aimed at determining the effect of protein type and indigestible carbohydrates on the concentration of microbial metabolites in the large intestine of pigs. The experiment involved 36 pigs (15 kg initial body weight) divided into six groups, fed cereal-based diets with highly digestible casein (CAS) or potato protein concentrate (PPC) of lower ileal digestibility. Each diet was supplemented with cellulose, raw potato starch or pectin. After 2 weeks of feeding, pigs were sacrificed and samples of caecal and ascending, transverse and descending colon digesta were collected for analyses of microbial metabolites...
June 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28429584/dna-metabarcoding-of-unfractionated-water-samples-relates-phyto-zoo-and-bacterioplankton-dynamics-and-reveals-a-single-taxon-bacterial-bloom
#5
Christian Wurzbacher, Katrin Attermeyer, Marie Therese Kettner, Clara Flintrop, Norman Warthmann, Sabine Hilt, Hans-Peter Grossart, Michael T Monaghan
Most studies of aquatic plankton focus on either macroscopic or microbial communities, and on either eukaryotes or prokaryotes. This separation is primarily for methodological reasons, but can overlook potential interactions among groups. We tested whether DNA metabarcoding of unfractionated water samples with universal primers could be used to qualitatively and quantitatively study the temporal dynamics of the total plankton community in a shallow temperate lake. We found significant changes in the relative proportions of normalized sequence reads of eukaryotic and prokaryotic plankton communities over a three-month period in spring...
April 21, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28427282/biofouling-in-photobioreactors-for-marine-microalgae
#6
Ouassim Zeriouh, José Vicente Reinoso-Moreno, Lorenzo López-Rosales, María Del Carmen Cerón-García, Asterio Sánchez-Mirón, Francisco García-Camacho, Emilio Molina-Grima
The economic and/or energetic feasibility of processes based on using microalgae biomass requires an efficient cultivation system. In photobioreactors (PBRs), the adhesion of microalgae to the transparent PBR surfaces leads to biofouling and reduces the solar radiation penetrating the PBR. Light reduction within the PBR decreases biomass productivity and, therefore, the photosynthetic efficiency of the cultivation system. Additionally, PBR biofouling leads to a series of further undesirable events including changes in cell pigmentation, culture degradation, and contamination by invasive microorganisms; all of which can result in the cultivation process having to be stopped...
April 20, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28425543/in-situ-nuclear-magnetic-resonance-microimaging-of-live-biofilms-in-a-microchannel
#7
R S Renslow, M J Marshall, A E Tucker, W B Chrisler, X-Y Yu
Biofilms are comprised of microbial cells and an extracellular polymeric substance (EPS) matrix that supports interactions between community members and with the local environment. The highly hydrated EPS matrix makes the application of many biofilm visualization techniques difficult. Hence, to better visualize how biofilms interact with their environment, there is a need for imaging techniques to monitor hydrated state biofilm dynamics. We employed an in situ dynamic approach to construct label-free images of biofilms...
April 20, 2017: Analyst
https://www.readbyqxmd.com/read/28425179/resilience-of-the-prokaryotic-microbial-community-of-acropora-digitifera-to-elevated-temperature
#8
Andrian P Gajigan, Leomir A Diaz, Cecilia Conaco
The coral is a holobiont formed by the close interaction between the coral animal and a diverse community of microorganisms, including dinoflagellates, bacteria, archaea, fungi, and viruses. The prokaryotic symbionts of corals are important for host fitness but are also highly sensitive to changes in the environment. In this study, we used 16S ribosomal RNA (rRNA) sequencing to examine the response of the microbial community associated with the coral, Acropora digitifera, to elevated temperature. The A. digitifera microbial community is dominated by operational taxonomic unit (OTUs) affiliated with classes Alphaproteobacteria and Gammaproteobacteria...
April 20, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28424672/isolation-and-identification-of-the-indigenous-yeast-population-during-spontaneous-fermentation-of-isabella-vitis-labrusca-l-grape-must
#9
María L Raymond Eder, Cristina Reynoso, Santiago C Lauret, Alberto L Rosa
Grape must harbors a complex community of yeast species responsible for spontaneous alcoholic fermentation. Although there are detailed studies on the microbiota of Vitis vinifera L. grapes, less is known about the diversity and behavior of yeast communities present on fermenting grape must from other species of Vitis. In this work, we used a culture-dependent method to study the identity and dynamics of the indigenous yeast population present during the spontaneous fermentation of Isabella (Vitis labrusca L...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28424669/inferring-microbial-interactions-in-the-gut-of-the-hong-kong-whipping-frog-polypedates-megacephalus-and-a-validation-using-probiotics
#10
Francis Cheng-Hsuan Weng, Grace Tzun-Wen Shaw, Chieh-Yin Weng, Yi-Ju Yang, Daryi Wang
The concerted activity of intestinal microbes is crucial to the health and development of their host organisms. Investigation of microbial interactions in the gut should deepen our understanding of how these micro-ecosystems function. Due to advances in Next Generation Sequencing (NGS) technologies, various bioinformatic strategies have been proposed to investigate these microbial interactions. However, due to the complexity of the intestinal microbial community and difficulties in monitoring their interactions, at present there is a gap between the theory and biological application...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28423970/recent-advances-on-topical-antimicrobials-for-skin-and-soft-tissue-infections-and-their-safety-concerns
#11
P L Lam, K K H Lee, R S M Wong, G Y M Cheng, Z X Bian, C H Chui, R Gambari
Antimicrobial resistance of disease-related microorganisms is considered a worldwide prevalent and serious issue which increases the failure of treatment outcomes and leads to high mortality. Considering that the increased resistance to systemic antimicrobial therapy often needs of the use of more toxic agents, topical antimicrobial therapy emerges as an attractive route for the treatment of infectious diseases. The topical antimicrobial therapy is based on the absorption of high drug doses in a readily accessible skin surface, resulting in a reduction of microbial proliferation at infected skin sites...
April 19, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28423946/tween-80-surfactant-enhanced-bioremediation-toward-a-solution-to-the-soil-contamination-by-hydrophobic-organic-compounds
#12
Min Cheng, Guangming Zeng, Danlian Huang, Chunping Yang, Cui Lai, Chen Zhang, Yang Liu
The occurrence of hydrophobic organic compounds (HOCs) in the soil has become a highly significant environmental issue. This problem has been exacerbated by the strong sorption of HOCs to the soils, which makes them unavailable for most remediation processes. More and more works show that surfactant-enhanced biological technologies offer a great potential to clear up HOCs-contaminated soils. This article is a critical review of HOCs removal from soils using Tween 80 (one of the mostly used nonionic surfactants) aided biological remediation technologies...
April 20, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28421522/individual-and-combined-inhibition-of-phenol-and-thiocyanate-on-microbial-activity-of-partial-nitritation
#13
Qiong Guo, Zhi-Jian Shi, Chen-Chen Yang, Mei Huang, Jia-Li Xu, Yi-Qun Xu, Wei-Min Ni, Ren-Cun Jin
This study evaluated the individual and interactive effect of phenol and thiocyanate (SCN(-)) on partial nitritation (PN) activity using batch test and response surface methodology. The IC50 of phenol and SCN(-) on PN sludge were 5.6 and 351 mg L(-1), respectively. The PN sludge was insensitive to phenol and SCN(-) at levels lower than 1.77 and 43.3 mg L(-1), respectively. A regression model equation was developed and validated to predict the relative specific respiration rate (RSRR) of PN sludge exposed to different phenol and SCN(-) concentrations...
April 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28421061/comparative-analysis-of-the-gut-microbial-communities-in-forest-and-alpine-musk-deer-using-high-throughput-sequencing
#14
Xiaolong Hu, Gang Liu, Aaron B A Shafer, Yuting Wei, Juntong Zhou, Shaobi Lin, Haibin Wu, Mi Zhou, Defu Hu, Shuqiang Liu
The gut ecosystem is characterized by dynamic and reciprocal interactions between the host and bacteria. Although characterizing microbiota for herbivores has become recognized as important tool for gauging species health, no study to date has investigated the bacterial communities and evaluated the age-related bacterial dynamics of musk deer. Moreover, gastrointestinal diseases have been hypothesized to be a limiting factor of population growth in captive musk deer. Here, high-throughput sequencing of the bacterial 16S rRNA gene was used to profile the fecal bacterial communities in juvenile and adult alpine and forest musk deer...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28421057/gut-microbiota-modulation-and-its-relationship-with-obesity-using-prebiotic-fibers-and-probiotics-a-review
#15
REVIEW
Dinesh K Dahiya, Renuka, Monica Puniya, Umesh K Shandilya, Tejpal Dhewa, Nikhil Kumar, Sanjeev Kumar, Anil K Puniya, Pratyoosh Shukla
In the present world scenario, obesity has almost attained the level of a pandemic and is progressing at a rapid rate. This disease is the mother of all other metabolic disorders, which apart from placing an added financial burden on the concerned patient also has a negative impact on his/her well-being and health in the society. Among the various plausible factors for the development of obesity, the role of gut microbiota is very crucial. In general, the gut of an individual is inhabited by trillions of microbes that play a significant role in host energy homeostasis by their symbiotic interactions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420790/honeybee-gut-microbiota-promotes-host-weight-gain-via-bacterial-metabolism-and-hormonal-signaling
#16
Hao Zheng, J Elijah Powell, Margaret I Steele, Carsten Dietrich, Nancy A Moran
Social bees harbor a simple and specialized microbiota that is spatially organized into different gut compartments. Recent results on the potential involvement of bee gut communities in pathogen protection and nutritional function have drawn attention to the impact of the microbiota on bee health. However, the contributions of gut microbiota to host physiology have yet to be investigated. Here we show that the gut microbiota promotes weight gain of both whole body and the gut in individual honey bees. This effect is likely mediated by changes in host vitellogenin, insulin signaling, and gustatory response...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28419372/nutrient-and-fiber-utilization-responses-of-supplemental-xylanase-in-broiler-chickens-fed-wheat-based-diets-are-independent-of-the-adaptation-period-to-test-diets2
#17
E Kiarie, M C Walsh, L F Romero, S Arent, V Ravindran
The effects of adaptation (AD) to xylanase-supplemented diets on nutrient and fiber utilization in 21-d-old broilers were investigated. Six treatments, arranged in two levels of AD (starting at d 0 or d 14 of age) and three levels of xylanase (0 or 2,500 or 5,000 xylanase units/kg feed) were used. All diets had 500 phytase U/kg and 0.3% TiO2 as indigestible marker. A total of 384 d old male broiler (Ross 308) chicks were divided into two groups. The first group was assigned on weight basis to 24 cages (8 chicks per cage) and randomly allocated to the diets from d 0...
April 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28419180/impact-of-gestational-nicotine-exposure-on-intrauterine-and-fetal-infection-in-a-rodent-model1
#18
Maria von Chamier, Leticia Reyes, Linda F Hayward, Mary B Brown
We investigated the interaction between prenatal nicotine exposure and intrauterine infection using established rat models. Beginning at gestation day (GD) 6, dams were continuously infused with either saline or 6 mg/kg/day nicotine (Nic). At GD 14, dams received either sterile broth or 105 CFU Mycoplasma pulmonis (MP), resulting in 4 treatment groups: Control (4 dams, 33 fetal units); MP only (5 dams, 55 fetal units); Nic only (5 dams, 61 fetal units) and Nic + MP (7 dams, 82 fetal units). At GD 18, nicotine exposure significantly increased (P ≤ 0...
April 17, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28418713/defence-factors-of-vaginal-lactobacilli
#19
S Kovachev
Accurate knowledge of the composition and ecology of the vaginal microbial environment in healthy women is necessary for understanding lactobacilli-dominated normal microbiota and the mechanisms by which it reduces disease risk. The vagina and its microbiota form a balanced ecosystem; any movement outside the normal range for this ecosystem of obligate and/or facultative microbes, termed dysbacteriosis, can lead to infection and disease. This review summarizes recent research on the vaginal ecosystem, the Lactobacillus species that dominate it, and the means by which they suppress the growth, development, and/or proliferation of pathogenic microbial species...
April 18, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28418589/a-distinct-cutaneous-microbiota-pofile-in-autoimmune-bullous-disease-patients
#20
Mor Miodovnik, Axel Künstner, Ewan A Langan, Detlef Zillikens, Regine Gläser, Eli Sprecher, John F Baines, Enno Schmidt, Saleh M Ibrahim
Bullous Pemphigoid (BP) is the most common autoimmune blistering disease in Europe. As both the incidence of the disease and the relative proportion of the elderly population continue to rise, it represents a significant medical burden. Whereas some progress has been achieved in defining genetic risk factors for autoimmune blistering diseases, no environmental agent has been conclusively identified. Emerging evidence suggests that host immunity may influence the skin microbiota while the latter modulates cutaneous immunity...
April 18, 2017: Experimental Dermatology
keyword
keyword
62975
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"