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https://www.readbyqxmd.com/read/28549371/theoretical-analysis-of-coupled-effects-of-microbe-and-root-architecture-on-methane-oxidation-in-vegetated-landfill-covers
#1
S Feng, A K Leung, C W W Ng, H W Liu
Reduction of soil moisture by plant root-water uptake could improve soil aeration for microbial aerobic methane oxidation (MAMO) in a landfill cover, but excessive soil moisture removal could suppress microbial activity due to water shortage. Existing models ignore the coupled microbe-vegetation interaction. It is thus not known whether the presence of plants is beneficial or adverse to MAMO. This study proposes a newly-improved theoretical model that couples the effects of root-water uptake and microbial activity for capturing water-gas flow and MAMO in unsaturated soils...
May 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549298/divided-consumption-of-late-night-dinner-improves-glycemic-excursions-in-patients-with-type-2-diabetes-a-randomized-cross-over-clinical-trial
#2
Saeko Imai, Shizuo Kajiyama, Yoshitaka Hashimoto, Chikako Yamane, Takashi Miyawaki, Neiko Ozasa, Muhei Tanaka, Michiaki Fukui
AIMS: To explore the acute effect of late-night-dinner and divided dinner on postprandial glucose levels in patients with type 2 diabetes. METHODS: Sixteen patients were randomly assigned to this cross-over study. Each patient wore a continuous glucose monitor for 5days and consumed identical test meals for 3days. Patients consumed the test meals of dinner at 2100h (D21) or divided dinner (vegetable and rice at 1800h and the vegetable and the main dish at 2100h) on the second or fourth day, and dinner at 1800h (D18) on the third day...
May 16, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28549288/ecological-effects-of-soil-properties-and-metal-concentrations-on-the-composition-and-diversity-of-microbial-communities-associated-with-land-use-patterns-in-an-electronic-waste-recycling-region
#3
Wencheng Wu, Changxun Dong, Jiahui Wu, Xiaowen Liu, Yingxin Wu, Xianbin Chen, Shixiao Yu
Soil microbes play vital roles in ecosystem functions, and soil microbial communities may be strongly structured by land use patterns associated with electronic waste (e-waste) recycling activities, which can increase the heavy metal concentration in soils. In this study, a suite of soils from five land use types (paddy field, vegetable field, dry field, forest field, and e-waste recycling site) were collected in Longtang Town, Guangdong Province, South China. Soil physicochemical properties and heavy metal concentrations were measured, and the indigenous microbial assemblages were profiled using 16S rRNA high-throughput sequencing and clone library analyses...
May 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549286/long-term-heavy-metal-removal-by-a-constructed-wetland-treating-rainfall-runoff-from-a-motorway
#4
Laurence W Gill, Pamela Ring, Brian Casey, Neil M P Higgins, Paul M Johnston
The accumulation of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) in the sediment and plants growing in a constructed wetland used to treat highway runoff in Ireland has been quantified after 6 and 9year periods of operation. The spatial distribution of the metals' deposition showed strong evidence of flow channelling through the wetland with a strong correlation between the spatial accumulation, particularly for Cr, Cu, Pb and Zn with most of these metals deposited towards the front of the wetland in the sediment...
May 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28548831/folate-biofortification-in-hydroponically-cultivated-spinach-by-the-addition-of-phenylalanine
#5
Sho Watanabe, Yuta Ohtani, Yohei Tatsukami, Wataru Aoki, Takashi Amemiya, Yasunori Sukekiyo, Seiichi Kubokawa, Mitsuyoshi Ueda
Folate is an important vitamin mainly ingested from vegetables, and folate deficiency causes various health problems. Recently, several studies demonstrated folate biofortification in plants or food crops by metabolic engineering through genetic modifications. However, genetically modified foods may have adverse effects, and their production and sales are under strict regulation. Here, we developed a new approach to achieve folate biofortification in spinach (Spinacia oleracea) without genetic modification...
May 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28548686/studies-on-the-antibody-response-and-side-effects-after-intramuscular-and-intraperitoneal-injection-of-atlantic-lumpfish-cyclopterus-lumpus-l-with-different-oil-based-vaccines
#6
T Erkinharju, M R Lundberg, E Isdal, I Hordvik, R A Dalmo, T Seternes
Atlantic lumpfish (Cyclopterus lumpus L.) is used as a biological delousing agent for sea lice (Lepeophtheirus salmonis K.) infestations in Norwegian aquaculture. Here, we present a study on the antibody response and vaccine side effects after intramuscular and intraperitoneal injection of lumpfish with two vaccines. Both vaccines contained bacterial antigens from atypical Aeromonas salmonicida A-layer types V and VI, Vibrio anguillarum serotype O1 and Moritella viscosa sp., but one vaccine contained a vegetable oil-based adjuvant, while the other contained a mineral oil-based adjuvant...
May 26, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28548684/origins-of-anterior-posterior-polarity-by-localized-activation-of-disheveled
#7
Jeff Chieh-Fu Peng, Lingyu Wang, Athula H Wikramanayake
Most animal eggs have a primordial polarity, termed the animal-vegetal (AV) axis, that frequently predicts the anterior-posterior (AP) axis of the embryo and adult. Transformation of the AV polarity of the egg to the AP polarity of the embryo in many species is mediated by the localized activation of canonical Wnt (cWnt) signaling in vegetal blastomeres by maternal determinants. In the sea urchin egg, cWnt signal transduction is facilitated by localized "activation" of the Disheveled protein, a central regulator of Wnt signaling...
May 26, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28548549/semantic-verbal-fluency-impairment-is-detectable-in-patients-with-subjective-cognitive-decline
#8
Tomas Nikolai, Ondrej Bezdicek, Hana Markova, Hana Stepankova, Jiri Michalec, Miloslav Kopecek, Monika Dokoupilova, Jakub Hort, Martin Vyhnalek
Patients with subjective cognitive decline (SCD) are at higher risk for conversion to dementia due to Alzheimer's disease (AD). Semantic verbal fluency (SVF) seems to be impaired in the early stages of AD. The goal of the present study was to identify the discriminative potential of verbal fluency (VF) in patients with SCD to show if very early signs of cognitive decline may be detected in SCD. We examined 93 normal controls (NC) and 61 participants with SCD. Each participant was administered a comprehensive neuropsychological battery...
May 26, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28548109/morphometric-convergence-between-proterozoic-and-post-vegetation-rivers
#9
Alessandro Ielpi, Robert H Rainbird, Dario Ventra, Massimiliano Ghinassi
Proterozoic rivers flowed through barren landscapes, and lacked interactions with macroscopic organisms. It is widely held that, in the absence of vegetation, fluvial systems featured barely entrenched channels that promptly widened over floodplains during floods. This hypothesis has never been tested because of an enduring lack of Precambrian fluvial-channel morphometric data. Here we show, through remote sensing and outcrop sedimentology, that deep rivers were developed in the Proterozoic, and that morphometric parameters for large fluvial channels might have remained within a narrow range over almost 2 billion years...
May 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28547775/acidic-electrolyzed-water-delays-browning-by-destroying-conformation-of-polyphenoloxidase
#10
Jiangping Sun, Meng Wang, Haiquan Liu, Jing Xie, Yingjie Pan, Changhua Xu, Yong Zhao
BACKGROUND: Browning frequently occurs at fruits, vegetables and aquatic products during storage, it drastically reduces the consumer's acceptability and considerable financial loss. The objective of this paper was to investigate the effects of acidic electrolyzed water (AEW) technology on polyphenoloxidase (PPO), which is an essential enzyme for browning. RESULTS: AEW ice exhibited a good ability in delaying browning in shrimp. Kinetic study revealed that AEW exhibited the mixed type inhibition of PPO with Ki value of 1...
May 26, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28547343/msmir156-affects-global-gene-expression-and-promotes-root-regenerative-capacity-and-nitrogen-fixation-activity-in-alfalfa
#11
Banyar Aung, Ruimin Gao, Margaret Y Gruber, Ze-Chun Yuan, Mark Sumarah, Abdelali Hannoufa
MicroRNA156 (miR156) regulates a network of downstream genes to affect plant growth and development. We previously generated alfalfa (Medicago sativa) plants that overexpress homologous miR156 (MsmiR156OE), and identified three of its SPL target genes. These plants exhibited increased vegetative yield, delayed flowering and longer roots. In this study, we aimed to elucidate the effect of miR156 on the root system, including effect on nodulation and nitrogen fixation. We found that MsmiR156 overexpression increases root regeneration capacity in alfalfa, but with little effect on root biomass at the early stages of root development...
May 25, 2017: Transgenic Research
https://www.readbyqxmd.com/read/28547294/seasonal-dynamics-of-extraradical-mycelium-and-mycorrhizas-in-a-black-truffle-tuber-melanosporum-plantation
#12
Mikel Queralt, Javier Parladé, Joan Pera, Ana María DE Miguel
Seasonal dynamics of black truffle (Tuber melanosporum) extraradical mycelium as well as the associated mycorrhizal community have been evaluated in a 16-year-old plantation with productive and non-productive trees. Mycelium biomass was seasonally quantified by real-time PCR over two consecutive years and the correlation with environmental variables explored. Extraradical mycelium biomass varied seasonally and between the two consecutive years, being correlated with the precipitation that occurred 1 month before sampling...
May 25, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28546560/potential-decline-in-carbon-carrying-capacity-under-projected-climate-wildfire-interactions-in-the-sierra-nevada
#13
Shuang Liang, Matthew D Hurteau, Anthony LeRoy Westerling
Ecosystem carbon carrying capacity (CCC) is determined by prevailing climate and natural disturbance regimes, conditions that are projected to change significantly. The interaction of changing climate and its effects on disturbance regimes is expected to affect forest regeneration and growth, which may diminish forest carbon (C) stocks and uptake. We modeled landscape C dynamics over 590 years along the latitudinal gradient of the U.S. Sierra Nevada Mountains under climate and area burned by large wildfires projected by late 21(st) century...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28546316/satellites-reveal-contrasting-responses-of-regional-climate-to-the-widespread-greening-of-earth
#14
Giovanni Forzieri, Ramdane Alkama, Diego G Miralles, Alessandro Cescatti
Changes in vegetation cover associated to the observed greening may affect several biophysical processes, whose net effects on climate are unclear. Here, we analyze remotely sensed dynamics in leaf area index (LAI) and energy fluxes to explore the associated variation in local climate. We show that the increasing trend in LAI contributed to the warming of boreal zones through a reduction of surface albedo, and to an evaporation-driven cooling in arid regions. The interplay between LAI and surface biophysics is amplified up to five times under extreme warm-dry and cold-wet years...
May 25, 2017: Science
https://www.readbyqxmd.com/read/28546126/role-of-xyloglucan-in-cotton-gossypium-hirsutum-l-fiber-elongation-of-the-short-fiber-mutant-ligon-lintless-2-li2
#15
Marina Naoumkina, Doug J Hinchliffe, David D Fang, Christopher B Florane, Gregory N Thyssen
Xyloglucan is a matrix polysaccharide found in the cell walls of all land plants. In growing cells, xyloglucan is thought to connect cellulose microfibrils and regulate their separation during wall extension. Ligon lintless-2 (Li2) is a monogenic dominant cotton fiber mutation that causes extreme reduction in lint fiber length with no pleiotropic effects on vegetative growth. Li2 represents an excellent model system to study fiber elongation. To understand the role of xyloglucan in cotton fiber elongation we used the short fiber mutant Li2 and its near isogenic wild type for analysis of xyloglucan content and expression of xyloglucan-related genes in developing fibers...
May 22, 2017: Gene
https://www.readbyqxmd.com/read/28545668/phenethyl-isothiocyanate-suppresses-cancer-stem-cell-properties-in-vitro-and-in-a-xenograft-model
#16
Ji Ho Yun, Kyung-A Kim, Gyhye Yoo, Sun Young Kim, Ji Min Shin, Jung Hoon Kim, Sang Hoon Jung, Jungho Kim, Chu Won Nho
BACKGROUND: Cancer stem cells (CSCs) are a subset of cells within the bulk of a tumor that have the ability to self-renew and differentiate, and are thus associated with cancer invasion, metastasis, and recurrence. Phenethyl isothiocyanate (PEITC) is a natural compound found in cruciferous vegetables such as broccoli and is used as a cancer chemopreventive agent; however, its effects on CSCs are little known. PURPOSE: To evaluate the effect of PEITC on CSCs in this study by examining CSC properties...
July 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28545590/effect-of-climatic-variability-on-malaria-trends-in-baringo-county-kenya
#17
Edwin K Kipruto, Alfred O Ochieng, Douglas N Anyona, Macrae Mbalanya, Edna N Mutua, Daniel Onguru, Isaac K Nyamongo, Benson B A Estambale
BACKGROUND: Malaria transmission in arid and semi-arid regions of Kenya such as Baringo County, is seasonal and often influenced by climatic factors. Unravelling the relationship between climate variables and malaria transmission dynamics is therefore instrumental in developing effective malaria control strategies. The main aim of this study was to describe the effects of variability of rainfall, maximum temperature and vegetation indices on seasonal trends of malaria in selected health facilities within Baringo County, Kenya...
May 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28545533/food-beliefs-and-practices-among-the-kalenjin-pregnant-women-in-rural-uasin-gishu-county-kenya
#18
Roselyter Monchari Riang'a, Jacqueline Broerse, Anne Kisaka Nangulu
BACKGROUND: Understanding food beliefs and practices is critical to the development of dietary recommendations, nutritional programmes, and educational messages. This study aimed to understand the pregnancy food beliefs and practices and the underlying reasons for these among the contemporary rural Kalenjin communities of Uasin Gishu County, Kenya. METHODS: Through semi-structured interviews, data was collected from 154 pregnant and post-natal Kalenjin women about restricted and recommended foods, and why they are restricted or recommended during pregnancy...
May 25, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28545529/lifestyle-factors-and-co-morbidities-associated-with-obesity-and-overweight-in-nkonkobe-municipality-of-the-eastern-cape-south-africa
#19
Wilfred Otang-Mbeng, Gloria Aderonke Otunola, Anthony Jide Afolayan
BACKGROUND: Obesity is a global epidemic that affects 500 million people worldwide and is predicted to increase to one billion people by 2030. The prevalence of obesity is increasing across populations in South Africa. However, questions still remain surrounding the predisposing factors and obesity-related health problems especially in the rural areas. This study evaluated several lifestyle factors such as dietary habits, physical activity, smoking, alcohol intake, co-morbidities and their association with the prevalence of obesity and overweight in Nkonkobe Municipality of the Eastern Cape...
May 25, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/28545355/emerging-trends-on-drug-delivery-strategy-of-momordica-charantia-against-diabetes-and-its-complications
#20
Zar Chi Thent, Srijit Das, Nurul Hannim Zaidun
The incidence of diabetes mellitus has increased drastically over the past few decades. This oxidant-antioxidant imbalance resulting in complication of diabetes mellitus includes macro- and microvascular complications. Resistance to conventional treatment and patient compliance has paved the way to the usage of effective natural products and supplements. Momordica charantia (bitter gourd) is widely consumed in many parts of Malaysia as a vegetable. Momordica charantia (MC) is mainly used in the management of diabetes mellitus...
May 25, 2017: Current Drug Delivery
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