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https://www.readbyqxmd.com/read/29692099/-effects-of-spraying-p-and-k-fertilizers-during-panicle-primordium-differentiation-stage-on-cold-resistance-yield-and-physiological-characteristics-of-early-rice
#1
Na Cao, Xiao Rong Chen, Hao Hua He, Chang Lan Zhu, Shuo Cai, Tao Xu, Heng Wang Xie, Fang Ping Liu
Super hybrid early rice variety Ganxin 203 was used as test material, and four foliar spraying treatments were set using clear water as the control group (CK), and 3 concentrations of potassium dihydrogen phosphate (KH2 PO4 ) with 0.1% (P1), 0.3% (P3), 0.5% (P5) and po-tash (MH). The effects of spraying P and K fertilizers on the leaf temperature, yield and physiolo-gical characteristics in double-season early rice under low temperature conditions during panicle primordium differentiation stage were studied...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692095/-effects-of-selenium-valence-states-and-application-concentrations-on-plant-growth-ascorbate-glutathione-cycle-in-citrus-junos-cv-ziyang-xiangcheng
#2
Xie Ping Sun, You Jin Luo, Guang Wen Zhou, Hong Wei Yi, Yuan Ping Chen, Zheng Wu, Yong Hong Xie
Potted Citrus. junos cv. Ziyang Xiangcheng seedlings were used to study the effects of selenium (Se) valence states (Se6+ and Se4+ ) on plant growth and antioxidants and antixodases in ascorbate(AsA)-glutathione (GSH) cycle. The results showed that Se6+ and Se4+ (from 1.0 mg·L-1 to 8.0 mg·L-1 ) stimulated the seedling growth by increasing plant height, leaf areas, and fresh or dry mass. Applying Se6+ significantly increased plant Se levels mainly in leaf, and applying Se4+ slightly increased Se content mainly in root...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692082/-double-ambient-co-2-concentration-affects-the-growth-development-and-sucking-behavior-of-non-target-brown-plant-hopper-nilaparvata-lugens-fed-on-transgenic-bt-rice
#3
Yong Qing Lu, Yang Dai, Xiu Ying Yu, Fu-Lan Yu, Shou Lin Jiang, Zong Yuan Zhou, Fa Jun Chen
In recent years, the two issues of climate change including elevated CO2 etc., and resistance of transgenic Bt crops against non-target insect pests have received widespread attention. Elevated CO2 can affect the herbivorous insects. To date, there is no consensus about the effect of elevated CO2 on the suck-feeding insect pests (non-target insect pests of transgenic Bt crops). Its effects on the suck-feeding behavior have rarely been reported. In this study, CO2 levels were set up in artificial climate chamber to examined the effects of ambient (400 μL·L-1 ) and double-ambient (800 μL·L-1 ) CO2 levels on the suck-feeding behavior, growth, development, and reproduction of the non-target insect pest of transgenic Bt rice, brown planthopper, Nilaparvata lugens...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692073/-effects-of-different-tillage-patterns-on-soil-properties-maize-yield-and-water-use-efficiency-in-weibei-highland-china
#4
Dan Liu, Xia Zhang, Jun Li, Xu-Dong Wang
An eight-year field experiment of straw returning was conducted on dark loessial soil in Weibei Highland to investigate the effects of tillage patterns on soil aggregate, soil organic carbon (SOC), corn yield and soil water use efficiency (WUE). There were six tillage patterns, including conventional tillage (CT/CT), no-tillage (NT/NT), subsoiling tillage (ST/ST), no-tillage/subsoiling tillage (NT/ST), conventional tillage/no-tillage (CT/NT) and conventional tillage/subsoiling tillage (CT/ST). The results showed that compared with CT/CT, the patterns of NT/NT, ST/ST and the rotational tillage patterns (NT/ST, CT/NT and CT/ST) decreased the mean mass diameter of soil mechanical stable aggregate...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692069/-structure-characteristics-of-soil-and-canopy-and-their-relationships-in-wheat-field-under-different-tillage-and-application-of-organic-fertilizer
#5
Dai Jing Zhang, Yan Yan Zhang, Yan Jie Wang, Qian Qing Chen, Hui Li Yang, Jian Hui Ma, Chun Xi Li
With the aim to optimize the structural characteristics of wheat canopy by improving topsoil structure, we examined the effects of three different tillage treatments, deep tillage (DT), shallow tillage (ST), no-tillage (NT) alone, and with application of organic fertilizer, DTF, STF and NTF, on the soil structure and wheat canopy characteristics for five years. Under the same tillage treatment, application of organic fertilizer decreased soil bulk density, the content of soil aggregates with diameter > 5 mm, the mean mass diameter (MWD), and geometric mean diameter (GMD) values of the soil aggregates with diameter >0...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692067/-effects-of-nitrate-nitrogen-supply-on-the-growth-photosynthetic-characteristics-and-15-n-absorption-utilization-of-malus-hupehensis-seedlings
#6
Ling Peng, Jing Jing Liu, Fen Wang, Shun Feng Ge, Yuan Mao Jiang
To explore the effects of different nitrate nitrogen levels (N0 , N1 , N2 , N3 and N4 were equivalent to 0, 2.5, 5, 10, 20 mmol·L-1 15 NO3 - -N, respectively) on the growth, photosynthetic characteristics and 15 N absorption, utilization and distribution, Malus hupehensis seedlings were grown in cultural liquid Hoagland by using the 15 N-labeled tracer method. The results showed that the leaf chlorophyll content, leaf area and dry mass in different organs were the highest in N2 treatment. With the increase of 15 NO3 - -N application rates, the leaf net photosynthetic rate (Pn )significantly increased but tended to decease when the 15 NO3 - -N concentration exceeded N2 treatment...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692061/-the-relative-contributions-of-plant-quality-simulated-rising-temperature-and-habitat-to-litter-decomposition
#7
Hang Wang, Peng Fei Yan, Peng Fei Zhan, Xiao Ning Zhang, Zhen Ya Liu, Yu Jing Guo, De Rong Xiao
With litter bag methods, we examined mass loss rates and different chemical fractions of litters from two wetland plant species, Zizania caduciflora and Hippuris vulgaris. Those two species examined here varied significantly in their initial litter chemical traits. Experiment was performed under simulated rising temperature (1.5-2.0 ℃), and under three different habitats (air, air-water interface and water-soil interface). The results showed that, during one-year decomposition period, the mass resi-dual rates exhibited distinct seasonal dynamics, and there were strong interactive effects between seasonal dynamics and environmental factors...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692038/-interannual-changes-in-fish-community-structure-in-the-northern-part-of-the-coastal-waters-of-jiangsu-province-china-in-spring
#8
Jia Wo, Xiu Xia Mou, Bin Duo Xu, Ying Xue, Chong Liang Zhang, Yi Ping Ren
Based on the data collected from the bottom trawl surveys in the coastal waters of northern Jiangsu Province from 2009 to 2014, multivariate statistical analysis and other integrated indices were used to analyze the variation in the community structure of fish assemblage over time in the waters. The results showed that 68 species had been caught in the coastal waters of northern Jiangsu Province. There were significant fluctuations in the relative density of fish resources. The mean catch mass per site ranged from 0...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692030/-effects-of-diverse-stresses-on-gene-expression-and-enzyme-activity-of-glutathione-reductase-in-brassica-campestris
#9
Teng Guo Zhang, Ting Ting Nie, Wan Cang Sun, Zhong Fei Shi, Juan Wang
A novel glutathione reductase gene (GR2) was isolated from Brassica campestris Longyou 6 by rapid isolation of cDNA ends (RACE). The full-length of cDNA of GR2 was 2073 bp, with an open reading frame (ORF) of 1692 bp. GR2 encoded a protein of 563 amino acids with a deduced molecular mass of about 60.7 kDa and an isoelectric point of 7.9. The real-time quantitative PCR results showed that GR2 was expressed in the roots, stems and leaves in B. campestris, among which the expression of GR2 in leaves was the highest...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692014/-effects-of-altitude-on-the-reproductive-characteristics-of-saussurea-przewalskii-at-the-eastern-margin-of-the-tibetan-plateau-china
#10
Yi Feng Wang, Ru Lin Qi, Ya Jun Yang, Yang Yang, Wei Dong Song, Wan Yi Mao
The paper studied the effects of altitude on reproductive characteristics in 12 populations of Saussurea przewalskii at the eastern Qinhai-Tibetan Plateau, China. The results showed that the size, reproductive organ biomass, vegetative organ biomass, capitulum number, and seed number of individual plant decreased with the increasing altitude, and the capitulum mass and hundred-grain mass increased continuously. S. przewalskii could ensure its reproduction by reducing plant body size to decrease resource consumption, and increasing the allocation of limit resources to flower biomass...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29691989/targeting-of-rna-polymerase-ii-by-a-nuclear-legionella-pneumophila-dot-icm-effector-snpl
#11
Ralf Schuelein, Hugh Spencer, Laura F Dagley, Peng Fei Li, Lin Luo, Jennifer L Stow, Gilu Abraham, Thomas Naderer, Laura Gomez-Valero, Carmen Buchrieser, Chihiro Sugimoto, Junya Yamagishi, Andrew I Webb, Shivani Pasricha, Elizabeth L Hartland
The intracellular pathogen Legionella pneumophila influences numerous eukaryotic cellular processes through the Dot/Icm-dependent translocation of more than 300 effector proteins into the host cell. Although many translocated effectors localize to the Legionella replicative vacuole, other effectors can affect remote intracellular sites. Following infection, a subset of effector proteins localizes to the nucleus where they subvert host cell transcriptional responses to infection. Here we identified Lpg2519 (Lpp2587/Lpw27461), as a new nuclear-localized effector that we have termed SnpL...
April 24, 2018: Cellular Microbiology
https://www.readbyqxmd.com/read/29691969/obesity-and-the-food-system-transformation-in-latin-america
#12
REVIEW
B M Popkin, T Reardon
The Latin America and the Caribbean (LAC) region faces a major diet-related health problem accompanied by enormous economic and social costs. The shifts in diet are profound: major shifts in intake of less-healthful low-nutrient-density foods and sugary beverages, changes in away-from-home eating and snacking and rapid shifts towards very high levels of overweight and obesity among all ages along with, in some countries, high burdens of stunting. Diet changes have occurred in parallel to, and in two-way causality with, changes in the broad food system - the set of supply chains from farms, through midstream segments of processing, wholesale and logistics, to downstream segments of retail and food service (restaurants and fast food chains)...
April 24, 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29691953/circulating-mots-c-levels-are-decreased-in-obese-male-children-and-adolescents-and-associated-with-insulin-resistance
#13
Caiqi Du, Cai Zhang, Wei Wu, Yan Liang, Anru Wang, Shimin Wu, Yue Zhao, Ling Hou, Qin Ning, Xiaoping Luo
BACKGROUND AND AIMS: A novel bioactive peptide, mitochondrial-derived peptide (MOTS-c), has recently attracted attention as a potential prevention or therapeutic option for obesity and type 2 diabetes mellitus (T2DM). MOTS-c profiles have not yet been reported in human obesity and T2DM. We aimed to determine circulating MOTS-c levels in obesity and explore the association between MOTS-c levels and various metabolic parameters. METHODS: In this case-control study, 40 obese children and adolescents (27 males) and 57 controls (40 males) were recruited in the Hubei Province of China in 2017...
April 25, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29691948/lifestyle-factors-and-the-course-of-depression-in-older-adults-a-nesdo-study
#14
REVIEW
Myrthe C Bruin, Hannie C Comijs, Rob M Kok, Roos C Van der Mast, Julia F Van den Berg
OBJECTIVES: To investigate whether lifestyle indicators including physical exercise, sleep duration, alcohol use, body mass index, smoking status, and a composite lifestyle index are associated with the depression course in older adults. METHODS: Data of 283 older adults were used from the Netherlands Study of Depression in Older Persons. Depressive disorders at baseline were assessed with the Composite International Diagnostic Interview. The depression course at 2-year follow-up was assessed with the Inventory of Depressive Symptoms (IDS, score 0-84) every 6 months; physical exercise with the International Physical Activity Questionnaire; alcohol use with the Alcohol Use Disorders Identification Test; body mass index by anthropometry; and sleep duration and smoking status by interview questions...
April 24, 2018: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29691917/an-immunological-age-index-in-bipolar-disorder-a-confirmatory-factor-analysis-of-putative-immunosenescence-markers-and-associations-with-clinical-characteristics
#15
Lucas B Rizzo, Walter Swardfager, Pawan Kumar Maurya, Maiara Zeni Graiff, Mariana Pedrini, Elson Asevedo, Ana Cláudia Cassinelli, Moisés E Bauer, Quirino Cordeiro, Jan Scott, Elisa Brietzke, Hugo Cogo-Moreira
OBJECTIVES: The study aims to generate an immunological age (IA) trait on the basis of immune cell differentiation parameters, and to test whether the IA is related to age and disease characteristics. METHODS: Forty-four euthymic type I bipolar disorder patients were included in this study. Five immunosenescence-related parameters were assessed: proportions of late-differentiated cells (e.g., CD3+CD8+CD28-CD27- and CD3-CD19+IgD-CD27-), and the expression of CD69, CD71, and CD152 after stimulation...
April 25, 2018: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/29691915/statistical-mixture-design-investigation-for-extraction-and-quantitation-of-aporphine-alkaloids-from-the-leaves-of-unonopsis-duckei-r-e-fr-by-hplc-ms-ms
#16
Pablo R N Rocha, Flávio A de Freitas, Célio F F Angolini, Lucas-Smith F Vasconcelos, Alaíde L B da Silva, Emmanoel V Costa, Felipe M A da Silva, Marcos N Eberlin, Giovana A Bataglion, Patrícia K Soares, Hector H F Koolen
INTRODUCTION: Alkaloids-derived drugs are a billionaire world-market and several phytochemical investigations aim the identification of new sources and/or structures. Thus, improving the way of extracting and methods to quantify them are of utmost importance. OBJECTIVE: To quantify isoquinoline-derived alkaloids in Unonopsis duckei R.E. Fr. through a new validated high-performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS) method in combination with a statistical mixture design that aimed a proper direct extraction of these compounds from leaves...
April 24, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29691896/genome-wide-interaction-with-the-insulin-secretion-locus-mtnr1b-reveals-cmip-as-a-novel-type-2-diabetes-susceptibility-gene-in-african-americans
#17
Jacob M Keaton, Chuan Gao, Meijian Guan, Jacklyn N Hellwege, Nicholette D Palmer, James S Pankow, Myriam Fornage, James G Wilson, Adolfo Correa, Laura J Rasmussen-Torvik, Jerome I Rotter, Yii-Der I Chen, Kent D Taylor, Stephen S Rich, Lynne E Wagenknecht, Barry I Freedman, Maggie C Y Ng, Donald W Bowden
Although type 2 diabetes (T2D) results from metabolic defects in insulin secretion and insulin sensitivity, most of the genetic risk loci identified to date relates to insulin secretion. We reported that T2D loci influencing insulin sensitivity may be identified through interactions with insulin secretion loci, thereby leading to T2D. Here, we hypothesize that joint testing of variant main effects and interaction effects with an insulin secretion locus increases power to identify genetic interactions leading to T2D...
April 24, 2018: Genetic Epidemiology
https://www.readbyqxmd.com/read/29691861/the-effect-of-substrate-rearing-on-growth-aerobic-scope-and-physiology-of-larval-white-sturgeon-acipenser-transmontanus
#18
M A Boucher, D W Baker, C J Brauner, J M Shrimpton
The effect of substratum on growth and metabolic rate was assessed in larval white sturgeon Acipenser transmontanus. Yolk-sac larvae (YSL) were reared in bare tanks or tanks with gravel as substratum from hatch until approximately 16 days post hatch (dph). The effect of an artificial substratum was also evaluated on growth alone. Substratum had a significant effect on mass, with larvae reared in gravel and artificial substrata being larger than those reared without substratum. Routine metabolic rates were significantly lower and relative aerobic scope (the difference between maximum and routine metabolic rate) was significantly higher for YSL and feeding larvae (FL) reared in gravel relative to those reared in bare tanks, particularly before fish started feeding exogenously...
April 24, 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/29691799/the-discriminative-power-of-stop-bang-as-a-screening-tool-for-suspected-obstructive-sleep-apnea-in-clinically-referred-patients-considering-gender-differences
#19
Jin Mou, Bethann M Pflugeisen, Brian A Crick, Paul J Amoroso, Kirk T Harmon, Stephen F Tarnoczy, S Shirley Ho, Kimberly A Mebust
PURPOSE: Obstructive sleep apnea (OSA) is the most commonly seen clinical sleep disorder. STOP-Bang, a widely used screening tool, yields a composite score based on eight dichotomized items including male gender. This study was designed to validate STOP-Bang among clinically referred patients and tested alternative scoring designs on tool performance, with a focus on gender differences in OSA. METHOD: STOP-Bang was administered to 403 female and 532 male subjects, followed by comprehensive sleep evaluation that included measurement of apnea-hypopnea indexes...
April 24, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29691790/operation-change-a-new-paradigm-addressing-behavior-change-and-musculoskeletal-health-disparities
#20
Lynne C Jones, Yashika Watkins, Duanny Alva
BACKGROUND: In this study, we examined the implementation and efficacy of Operation Change, a community-based, culturally sensitive program to stimulate behavioral changes in activity level and improve musculoskeletal health in African-American (AA) and Hispanic/Latina (H/L) women with obesity and early-stage osteoarthritis. METHODS: Sixty-two women (32 AA and 30 H/L), 40-75 years old, with nontraumatic knee pain and body mass index values > 30, participated in a 12-week program of presentations, motivational interviewing, goal setting, and physical activities...
April 24, 2018: Journal of Racial and Ethnic Health Disparities
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