keyword
MENU ▼
Read by QxMD icon Read
search

Microorganism quality

keyword
https://www.readbyqxmd.com/read/28813469/phytoplasma-infection-of-a-tropical-root-crop-triggers-bottom-up-cascades-by-favoring-generalist-over-specialist-herbivores
#1
Kris A G Wyckhuys, Ignazio Graziosi, Dharani Dhar Burra, Abigail Jan Walter
Global interest on plant-microbe-insect interactions is rapidly growing, revealing the multiple ways in which microorganisms mediate plant-herbivore interactions. Phytopathogens regularly alter whole repertoires of plant phenotypic traits, and bring about shifts in key chemical or morphological characteristics of plant hosts. Pathogens can also cause cascading effects on higher trophic levels, and eventually shape entire plant-associated arthropod communities. We tested the hypothesis that a Candidatus Phytoplasma causing cassava witches' broom (CWB) on cassava (Manihot esculenta Grantz) is altering species composition of invasive herbivores and their associated parasitic hymenopterans...
2017: PloS One
https://www.readbyqxmd.com/read/28812996/reliable-detection-of-herpes-simplex-virus-sequence-variation-by-high-throughput-resequencing
#2
Alison M Morse, Kaitlyn R Calabro, Justin M Fear, David C Bloom, Lauren M McIntyre
High-throughput sequencing (HTS) has resulted in data for a number of herpes simplex virus (HSV) laboratory strains and clinical isolates. The knowledge of these sequences has been critical for investigating viral pathogenicity. However, the assembly of complete herpesviral genomes, including HSV, is complicated due to the existence of large repeat regions and arrays of smaller reiterated sequences that are commonly found in these genomes. In addition, the inherent genetic variation in populations of isolates for viruses and other microorganisms presents an additional challenge to many existing HTS sequence assembly pipelines...
August 16, 2017: Viruses
https://www.readbyqxmd.com/read/28805737/effects-of-short-term-set-aside-management-practices-on-soil-microorganism-and-enzyme-activity-in-china
#3
Guangyu Li, Cifang Wu
Set-aside farmland can effectively improve the self-rehabilitation of arable soil. Long-term set-asides however cannot satisfy provisionment, therefore the use of short-term set-asides to restore cultivated soil is a better option. Few studies have compared short-term set-aside patterns, and the effects of set-asides on soil microbial community and enzyme enzymes. We analyzed the bacterial structure, microbial biomass carbon/nitrogen and enzyme activity of farmland soil under different set-aside regimes in the Yellow River Delta of China...
August 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28803570/decontamination-of-an-extracorporeal-membrane-oxygenator-contaminated-with-mycobacterium-chimaera
#4
Mark I Garvey, Natalie Phillips, Craig W Bradley, Elisabeth Holden
Water samples taken from extracorporeal membrane oxygenator (ECMO) devices used at University Hospitals Birmingham yielded high total viable counts (TVCs) containing a variety of microorganisms, including M. chimaera. Disinfection resulted in the reduction of TVCs and eradication of Mycobacterium chimaera. Weekly disinfection and water sampling are required to manage the water quality in these devices. Infect Control Hosp Epidemiol 2017;1-3.
August 14, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28802993/microbial-community-structure-and-activity-in-trace-element-contaminated-soils-phytomanaged-by-gentle-remediation-options-gro
#5
M Touceda-González, Á Prieto-Fernández, G Renella, L Giagnoni, A Sessitsch, G Brader, J Kumpiene, I Dimitriou, J Eriksson, W Friesl-Hanl, R Galazka, J Janssen, M Mench, I Müller, S Neu, M Puschenreiter, G Siebielec, J Vangronsveld, P S Kidd
Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe...
August 10, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28800823/detection-and-quantification-of-alicyclobacillus-acidoterrestris-by-electrical-impedance-in-apple-juice
#6
Pilar Fernández, José Antonio Gabaldón, Mª Jesús Periago
Alicyclobacillus acidoterrestris is a thermotolerant bacterium able to grow in fruit juices and drinks, as the spoilage by Alicyclobacillus in the final product does not product any gas, but leads to a "medicine flavor" due to the formation of guaicol. Also, its detection is a challenge for the quality control departments, because it takes several days to get the results of traditional microbiology methods. This study aimed at developing a more accurate electrical impedance technique for the detection of A...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28800692/does-the-developmental-stage-and-composition-of-riparian-forest-stand-affect-ecosystem-functioning-in-streams
#7
Sahadevan Seena, Francisco Carvalho, Fernanda Cássio, Cláudia Pascoal
A common watershed restoration practice to improve water quality and stream ecosystem functions and services is replanting riparian corridors with plant species that may differ from those of natural communities. This restoration practice may have consequences on the aquatic ecosystem processes because organisms obtain energy from leaf litter inputs of the riparian zones. Leaf litter decomposition in streams is a vital ecosystem-level process, which depends on the activity of microorganisms and invertebrates...
August 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28800555/simultaneous-nitrogen-and-organics-removal-using-membrane-aeration-and-effluent-ultrafiltration-in-an-anaerobic-fluidized-membrane-bioreactor
#8
Yaoli Ye, Pascal E Saikaly, B E Logan
Dissolved methane and a lack of nutrient removal are two concerns for treatment of wastewater using anaerobic fluidized bed membrane bioreactors (AFMBRs). Membrane aerators were integrated into an AFMBR to form an aeration membrane fluidized bed membrane bioreactor (AeMFMBR) capable of simultaneous removal of organic matter and ammonia without production of dissolved methane. Good effluent quality was obtained with no detectable suspended solids, 93±5% of chemical oxygen demand (COD) removal to 14±11mg/L, and 74±8% of total ammonia (TA) removal to 12±3mg-N/L for domestic wastewater (COD of 193±23mg/L and TA of 49±5mg-N/L) treatment...
August 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28796186/maldi-tof-ms-for-the-identification-of-cultivable-organic-degrading-bacteria-in-contaminated-groundwater-near-unconventional-natural-gas-extraction-sites
#9
Inês C Santos, Misty S Martin, Doug D Carlton, Catarina L Amorim, Paula M L Castro, Zacariah L Hildenbrand, Kevin A Schug
Groundwater quality and quantity is of extreme importance as it is a source of drinking water in the United States. One major concern has emerged due to the possible contamination of groundwater from unconventional oil and natural gas extraction activities. Recent studies have been performed to understand if these activities are causing groundwater contamination, particularly with respect to exogenous hydrocarbons and volatile organic compounds. The impact of contaminants on microbial ecology is an area to be explored as alternatives for water treatment are necessary...
August 10, 2017: Microorganisms
https://www.readbyqxmd.com/read/28783790/wheat-growth-in-soils-treated-by-ex-situ-thermal-desorption
#10
Peter L O'Brien, Thomas M DeSutter, Francis X M Casey, Abbey F Wick, E Khan
Successful remediation of oil-contaminated agricultural land may include the goal of returning the land to prespill levels of agricultural productivity. This productivity may be measured by crop yield, quality, and safety, all of which are influenced by soil characteristics. This research was conducted to determine if these metrics are affected in hard red spring wheat ( L. cultivar Barlow) when grown in soils treated by ex situ thermal desorption (TD) compared with wheat grown in native topsoil (TS). Additionally, TD soils were mixed with TS at various ratios to assess the effectiveness of soil mixing as a procedure for enhancing productivity...
July 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28780416/application-of-tragacanth-gum-impregnated-with-satureja-khuzistanica-essential-oil-as-a-natural-coating-for-enhancement-of-postharvest-quality-and-shelf-life-of-button-mushroom-agaricus-bisporus
#11
M Nasiri, M Barzegar, M A Sahari, M Niakousari
The effect of Tragacanth gum (TG) coating incorporated with 100, 500 and 1000ppm Satureja khuzistanica essential oil (SEO) on the postharvest quality and shelf life of button mushroom (Agaricus bisporus) stored at 4±1°C for 16days was investigated. Weight loss, firmness, browning index (BI), total phenolics, ascorbic acid, microbial and sensory quality were measured. The results indicated that treatment with TG containing SEO (TGSEO) maintained 92.4% tissue firmness, and reduced microorganism counts, such as yeasts and molds and Pseudomonas, compared to uncoated samples...
August 2, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28772274/a-review-of-conventional-pcr-assays-for-the-detection-of-selected-phytopathogens-of-wheat
#12
Adam Kuzdraliński, Anna Kot, Hubert Szczerba, Michał Nowak, Marta Muszyńska
Infection of phyllosphere (stems, leaves, husks, and grains) by pathogenic fungi reduces the wheat yield and grain quality. Detection of the main wheat pathogenic fungi provides information about species composition and allows effective and targeted plant treatment. Since conventional procedures for the detection of these organisms are unreliable and time consuming, diagnostic DNA-based methods are required. Nucleic acid amplification technologies are independent of the morphological and biochemical characteristics of fungi...
August 4, 2017: Journal of Molecular Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28771825/mercury-bioavailability-transformations-and-effects-to-freshwater-biofilms
#13
REVIEW
Perrine Dranguet, Séverine Le Faucheur, Vera I Slaveykova
Mercury (Hg) compounds represent an important risk to aquatic ecosystems due to their persistence, bioaccumulation and biomagnification potential. In the present review, we critically examine the state-of-the-art studies concerning the interactions of Hg compounds with freshwater biofilms with emphasis on Hg accumulation, transformations and effects. Freshwater biofilms contain both primary producers (e.g. algae) and decomposers (e.g bacteria and fungi), which contribute to both aquatic food webs and microbial loop...
August 3, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28769888/unraveling-core-functional-microbiota-in-traditional-solid-state-fermentation-by-high-throughput-amplicons-and-metatranscriptomics-sequencing
#14
Zhewei Song, Hai Du, Yan Zhang, Yan Xu
Fermentation microbiota is specific microorganisms that generate different types of metabolites in many productions. In traditional solid-state fermentation, the structural composition and functional capacity of the core microbiota determine the quality and quantity of products. As a typical example of food fermentation, Chinese Maotai-flavor liquor production involves a complex of various microorganisms and a wide variety of metabolites. However, the microbial succession and functional shift of the core microbiota in this traditional food fermentation remain unclear...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28763662/effects-of-hexaconazole-application-on-soil-microbes-community-and-nitrogen-transformations-in-paddy-soils
#15
Chao Ju, Jun Xu, Xiaohu Wu, Fengshou Dong, Xingang Liu, Chunyan Tian, Yongquan Zheng
The ecological risks of widely used hexaconazole on soil microbes remain obscure. Thus, a 3-month-long experiment using two typical paddy soils in China (red soil and black soil) was conducted to assess the effects of hexaconazole (0.6 (T1) and 6 (T10) mgkg(-1) soil) on the overall microbial biomass, respiratory activity, bacterial abundance and community structure, and nitrogen transformations. Soil was sampled after 7, 15, 30, 60, and 90days of incubation. The half-lives of the two doses of hexaconazole varied from 122 to 135d in the black soil and from 270 to 845d in the red soil...
July 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28763335/validation-of-digital-pathology-for-primary-histopathological-diagnosis-of-routine-inflammatory-dermatopathology-cases
#16
Jonathan J Lee, Jaroslaw Jedrych, Liron Pantanowitz, Jonhan Ho
BACKGROUND: Digital pathology (DP) systems have been validated for routine, histopathological diagnosis by several investigators. The diagnostic matter in previous studies is composed mostly of neoplasms. However, in dermatopathology, inflammatory diseases constitute a greater proportion of cases and have been under-represented in this literature. Herein, we report the results of a prospective, DP side-by-side validation study comparing the histologic assessment of routine, clinical inflammatory dermatopathology cases by whole slide imaging (WSI) and traditional light microscopy (LM)...
July 28, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28762696/probiotics-for-gastrointestinal-conditions-a-summary-of-the-evidence
#17
REVIEW
Thad Wilkins, Jacqueline Sequoia
Probiotics contain microorganisms, most of which are bacteria similar to the beneficial bacteria that occur naturally in the human gut. Probiotics have been widely studied in a variety of gastrointestinal diseases. The most-studied species include Lactobacillus, Bifidobacterium, and Saccharomyces. However, a lack of clear guidelines on when to use probiotics and the most effective probiotic for different gastrointestinal conditions may be confusing for family physicians and their patients. Probiotics have an important role in the maintenance of immunologic equilibrium in the gastrointestinal tract through the direct interaction with immune cells...
August 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28758980/effects-of-pla-film-incorporated-with-zno-nanoparticle-on-the-quality-attributes-of-fresh-cut-apple
#18
Wenhui Li, Lin Li, Yun Cao, Tianqing Lan, Haiyan Chen, Yuyue Qin
A novel nanopackaging film was synthesized by incorporating ZnO nanoparticles into a poly-lactic acid (PLA) matrix, and its effect on the quality of fresh-cut apple during the period of preservation was investigated at 4 ± 1 °C for 14 days. Six wt % cinnamaldehyde was added into the nano-blend film. Scanning electron microscope (SEM) analysis showed a rougher cross-section of the nano-blend films and an X-ray diffraction (XRD) was carried out to determine the structure of the ZnO nanoparticles. Compared to the pure PLA film, the nano-blend film had a higher water vapor permeability (WVP) and lower oxygen permeability...
July 31, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28757560/microorganisms-in-fermented-apple-beverages-current-knowledge-and-future-directions
#19
REVIEW
Fabien J Cousin, Rozenn Le Guellec, Margot Schlusselhuber, Marion Dalmasso, Jean-Marie Laplace, Marina Cretenet
Production of fermented apple beverages is spread all around the world with specificities in each country. 'French ciders' refer to fermented apple juice mainly produced in the northwest of France and often associated with short periods of consumption. Research articles on this kind of product are scarce compared to wine, especially on phenomena associated with microbial activities. The wine fermentation microbiome and its dynamics, organoleptic improvement for healthy and pleasant products and development of starters are now widely studied...
July 25, 2017: Microorganisms
https://www.readbyqxmd.com/read/28753939/using-iron-manganese-co-oxide-filter-film-to-remove-ammonium-from-surface-water
#20
Ruifeng Zhang, Tinglin Huang, Gang Wen, Yongpan Chen, Xin Cao, Beibei Zhang
An iron-manganese co-oxide filter film (MeOx) has been proven to be a good catalyst for the chemical catalytic oxidation of ammonium in groundwater. Compared with groundwater, surface water is generally used more widely and has characteristics that make ammonium removal more difficult. In this study, MeOx was used to remove ammonium from surface water. It indicated that the average ammonium removal efficiency of MeOx was greater than 90%, even though the water quality changed dramatically and the water temperature was reduced to about 6-8 °C...
July 19, 2017: International Journal of Environmental Research and Public Health
keyword
keyword
96824
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"