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https://www.readbyqxmd.com/read/29166289/a-statistical-method-for-analysing-cospeciation-in-tritrophic-ecology-using-electrical-circuit-theory
#1
Colleen Nooney, Stuart Barber, Arief Gusnanto, Walter R Gilks
We introduce a new method to test efficiently for cospeciation in tritrophic systems. Our method utilises an analogy with electrical circuit theory to reduce higher order systems into bitrophic data sets that retain the information of the original system. We use a sophisticated permutation scheme that weights interactions between two trophic layers based on their connection to the third layer in the system. Our method has several advantages compared to the method of Mramba et al. [Mramba, L. K., S. Barber, K...
November 22, 2017: Statistical Applications in Genetics and Molecular Biology
https://www.readbyqxmd.com/read/29165808/mdwrky9-overexpression-confers-intensive-dwarfing-in-the-m26-rootstock-of-apple-by-directly-inhibiting-brassinosteroid-synthetase-mddwf4-expression
#2
Xiaodong Zheng, Yu Zhao, Dongqian Shan, Kun Shi, Lin Wang, Qingtian Li, Na Wang, Jingzhe Zhou, Junzhu Yao, Yuan Xue, Shuang Fang, Jinfang Chu, Yan Guo, Jin Kong
Dwarfing rootstocks enable high-density planting and are therefore highly desirable in modern apple (Malus domestica) production. M26 is a semi-dwarfing rootstock that is used worldwide, but identifying intensive dwarfing rootstock is a major goal of apple breeding programs. Herein, we show that MdWRKY9 mediates dwarfing by directly inhibiting the transcription of the brassinosteroid (BR) rate-limiting synthetase MdDWF4 and reducing BR production. We found that the transcriptional factor MdWRKY9 is highly expressed in all tested dwarfing rootstocks...
November 22, 2017: New Phytologist
https://www.readbyqxmd.com/read/29163590/multiple-copies-of-a-simple-myb-binding-site-confers-trans-regulation-by-specific-flavonoid-related-r2r3-mybs-in-diverse-species
#3
Cyril Brendolise, Richard V Espley, Kui Lin-Wang, William Laing, Yongyan Peng, Tony McGhie, Supinya Dejnoprat, Sumathi Tomes, Roger P Hellens, Andrew C Allan
In apple, the MYB transcription factor MYB10 controls the accumulation of anthocyanins. MYB10 is able to auto-activate its expression by binding its own promoter at a specific motif, the R1 motif. In some apple accessions a natural mutation, termed R6, has more copies of this motif within the MYB10 promoter resulting in stronger auto-activation and elevated anthocyanins. Here we show that other anthocyanin-related MYBs selected from apple, pear, strawberry, petunia, kiwifruit and Arabidopsis are able to activate promoters containing the R6 motif...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29163556/identification-of-mshsp20-gene-family-in-malus-sieversii-and-functional-characterization-of-mshsp16-9-in-heat-tolerance
#4
Meiling Yang, Yunxiu Zhang, Huanhuan Zhang, Hongbin Wang, Tao Wei, Shiyou Che, Lipeng Zhang, Baoquan Hu, Hong Long, Wenqin Song, Weiwei Yu, Guorong Yan
Heat shock proteins (Hsps) are common molecular chaperones present in all plants that accumulate in response to abiotic stress. Small heat shock proteins (sHsps) play important roles in alleviating diverse abiotic stresses, especially heat stress. However, very little is known about the MsHsp20 gene family in the wild apple Malus sieversii, a precious germplasm resource with excellent resistance characteristics. In this study, 12 putative M. sieversii Hsp20 genes were identified from RNA-Seq data and analyzed in terms of gene structure and phylogenetic relationships...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29160608/apple-fruit-superficial-scald-resistance-mediated-by-ethylene-inhibition-is-associated-with-diverse-metabolic-processes
#5
Nicola Busatto, Brian Farneti, Mauro Commisso, Martino Bianconi, Barbara Iadarola, Elisa Zago, Benedetto Ruperti, Francesco Spinelli, Angelo Zanella, Riccardo Velasco, Alberto Ferrarini, Giulia Chitarrini, Urska Vrhovsek, Massimo Delledonne, Flavia Guzzo, Guglielmo Costa, Fabrizio Costa
Fruits stored at low temperature can exhibit different types of chilling injury. In apple, one of the most serious physiological disorders is superficial scald, which is characterized by discoloration and brown necrotic patches on the fruit exocarp. Although this phenomenon is widely ascribed to the oxidation of α-farnesene, its physiology is not yet fully understood. To elucidate the mechanism of superficial scald development and possible means of prevention, we performed an integrated metabolite screen, including an analysis of volatiles, phenols and lipids, together with a large-scale transcriptome study...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29156563/wnt-inhibitory-activity-of-malus-pumila-miller-cv-annurca-and-malus-domestica-cv-limoncella-apple-extracts-on-human-colon-rectal-cells-carrying-familial-adenomatous-polyposis-mutations
#6
Gennaro Riccio, Maria Maisto, Sara Bottone, Nadia Badolati, Giovanni Battista Rossi, Gian Carlo Tenore, Mariano Stornaiuolo, Ettore Novellino
Inhibitors of the Wingless-related Integration site (WNT)/β-catenin pathway have recently been under consideration as potential chemopreventive agents against Familial Adenomatous Polyposis (FAP). This autosomal-dominant syndrome is caused by germline mutations in the gene coding for the protein APC and leads to hyperactivation of the WNT/β-catenin signaling pathway, uncontrolled intestinal cell proliferation and formation of adenocarcinomas. The aim of the present work was to: (i) test, on in vitro cultures of cells carrying FAP mutations and on ex vivo biopsies of FAP patients, the WNT inhibitory activity of extracts from two common southern Italian apples, Malus pumila Miller cv...
November 18, 2017: Nutrients
https://www.readbyqxmd.com/read/29155570/chemistry-antimicrobial-mechanisms-and-antibiotic-activities-of-cinnamaldehyde-against-pathogenic-bacteria-in-animal-feeds-and-human-foods
#7
Mendel Friedman
Cinnamaldehyde is a major constituent of cinnamon essential oils produced by aromatic cinnamon plants. This compound has been reported to exhibit antimicrobial properties in vitro in laboratory media and in animal feeds and human foods contaminated with disease-causing bacteria including Bacillus cereus, Campylobacter jejuni, Clostridium perfringens, Escherichia coli, Listeria monocytogenes, and Salmonella enterica. This integrated review surveys and interprets our current knowledge of the chemistry, analysis, safety, mechanism of action, and antibiotic activities of cinnamaldehyde in food animal (cattle, lambs, calves, pigs, poultry) diets and in widely consumed liquid (apple, carrot, tomato, and watermelon juices, milk) and solid foods...
November 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29155376/smartphone-apps-meet-evidence-based-medicine-the-future-of-medicine-may-or-may-not-be-in-your-smartphone
#8
Kenneth R Foster, David J Callans
"The future of medicine is in your smartphone," proclaimed an eminent medical researcher in a 2015 Wall Street Journal essay. In a sense, that future has already arrived, judging from the proliferation of apps and medical devices now connected to smartphones. One 2015 industry study identified more than 165,000 health-related smartphone apps available from the Google Play Store and Apple iTunes. But to what extent does this technology lead to improved patient outcomes? That question is one for evidence-based medicine, to be answered by clinical trials and systematic reviews by medical experts...
November 2017: IEEE Pulse
https://www.readbyqxmd.com/read/29154226/short-term-exposures-to-pm2-5-and-cause-specific-mortality-of-cardiovascular-health-in-china
#9
Chen Chen, Pengfei Zhu, Li Lan, Lian Zhou, Ruicong Liu, Qinghua Sun, Jie Ban, Wentao Wang, Dandan Xu, Tiantian Li
BACKGROUND: Many multi-center epidemiological studies have robustly examined the acute health effects of exposure to low concentrations of fine particulate matter (PM2.5) on cardiovascular mortality in developed counties. However, data limitations have resulted in few related studies being conducted in developing counties with high levels of PM2.5 exposure. In recent years, people in China with a heavy cardiovascular disease burden have been exposed to particularly high levels of PM2...
November 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/29154127/lateral-orbitofrontal-inactivation-dissociates-devaluation-sensitive-behavior-and-economic-choice
#10
Matthew P H Gardner, Jessica S Conroy, Michael H Shaham, Clay V Styer, Geoffrey Schoenbaum
How do we choose between goods that have different subjective values, like apples and oranges? Neuroeconomics proposes that this is done by reducing complex goods to a single unitary value to allow comparison. This value is computed "on the fly" from the underlying model of the goods space, allowing decisions to meet current needs. This is termed "model-based" behavior to distinguish it from pre-determined, habitual, or "model-free" behavior. The lateral orbitofrontal cortex (OFC) supports model-based behavior in rats and primates, but whether the OFC is necessary for economic choice is less clear...
November 15, 2017: Neuron
https://www.readbyqxmd.com/read/29153340/impacts-of-delayed-addition-of-n-rich-and-acidic-substrates-on-nitrogen-loss-and-compost-quality-during-pig-manure-composting
#11
Jishao Jiang, Kang Kang, Dan Chen, Ningning Liu
Delayed addition of Nitrogen (N)-rich and acidic substrates was investigated to evaluate its effects on N loss and compost quality during the composting process. Three different delayed adding methods of N-rich (pig manure) and acidic substrates (phosphate fertilizer and rotten apples) were tested during the pig manure and wheat straw is composting. The results showed that delayed addition of pig manure and acidic materials led two temperature peaks, and the durations of two separate thermophilic phase were closely related to the amount of pig manure...
November 16, 2017: Waste Management
https://www.readbyqxmd.com/read/29152118/sensitization-of-neuroblastoma-for-vincristine-induced-apoptosis-by-smac-mimetic-lcl161-is-attended-by-g2-cell-cycle-arrest-but-is-independent-of-nf%C3%AE%C2%BAb-rip1-and-tnf-%C3%AE
#12
Doerte Langemann, Magdalena Trochimiuk, Birgit Appl, Patrick Hundsdoerfer, Konrad Reinshagen, Georg Eschenburg
We demonstrated sensitization for chemotherapy by Smac mimetic (SM) LCL161, a potent antagonist of inhibitor of apoptosis proteins (IAP), in neuroblastoma (NB). Vinca alkaloids, particularly vincristine (VCR), displayed the strongest impact on inhibition of proliferation and apoptosis induction in combination with LCL161. The underlying signaling pathways remain elusive, though. LCL161 induces a quick degradation of cellular IAP 1 (cIAP-1). Combination of LCL161 with VCR had only marginal effects on X-linked IAP (XIAP) protein expression...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151915/phloretin-induces-apoptosis-of-human-esophageal-cancer-via-a-mitochondria-dependent-pathway
#13
Hongtao Duan, Ruixuan Wang, Xiaolong Yan, Honggang Liu, Yong Zhang, Deguang Mu, Jing Han, Xiaofei Li
2,4,6-trihydroxy-3-(4-hydroxyphenyl)-propiophenone (phloretin) is found in apple tree leaves and the Manchurian apricot, and is a potent compound that exhibits anti-inflammatory, antioxidant and antitumor activities. However, the effect of phloretin on esophageal cancer cells is not well-defined. The present study aimed to examine whether and how phloretin induced apoptosis in human esophageal cancer cells. EC-109 cells were cultured in Dulbecco's modified Eagle's medium and incubated with 60, 70, 80, 90 and 100 µg/ml phloretin for 6, 12, 24 and 48 h...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29151025/a-meta-analysis-of-positive-airway-pressure-treatment-for-cardiovascular-prevention-why-mix-apples-and-pears
#14
REVIEW
Yüksel Peker, Patrick J Strollo
No abstract text is available yet for this article.
November 18, 2017: Evidence-based Medicine
https://www.readbyqxmd.com/read/29150632/mucoadhesive-functionality-of-cell-wall-structures-from-fruits-and-grains-electrostatic-and-polymer-network-interactions-mediated-by-soluble-dietary-polysaccharides
#15
Oliver W Meldrum, Gleb E Yakubov, Ghanendra Gartaula, Michael A McGuckin, Michael J Gidley
We demonstrate the enhancement of intestinal mucin (Muc2) binding to plant cell wall structures from fruit (parenchymal apple tissue) and grain (wheat endosperm) mediated by soluble dietary fibers embedded within cellulose networks. Mucin binding occurs through two distinct mechanisms; for pectin polysaccharides characteristic of fruits and vegetables, it is governed by molecular mucoadhesive interactions, while for neutral polysaccharides, arabinoxylan and β-glucan characteristic of cereal grains, the interaction stems from the properties of their polymer network...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149487/fabrication-of-chelate-setting-%C3%AE-tricalcium-phosphate-cement-using-sodium-citrate-and-sodium-alginate-as-mixing-solution-and-its-in-vivo-osteoconductivity
#16
Toshiisa Konishi, Poon Nian Lim, Michiyo Honda, Masaki Nagaya, Hiroshi Nagashima, Eng San Thian, Mamoru Aizawa
Moldable and injectable calcium-phosphate cements (CPCs) are material candidates for bone replacement applications. In the present study, we examined the effectiveness of sodium alginate and sodium citrate additives to the liquid phase of CPC, in improving its handling property as well as mechanical strength. The use of these additives enhanced the handling property significantly, in terms of consistency as compared to CPC without additives due to the liquefying effect caused by the adsorption of citrate ions on the cement particles...
November 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29149190/improved-capture-of-drosophila-suzukii-by-a-trap-baited-with-two-attractants-in-the-same-device
#17
Rodrigo Lasa, Eduardo Tadeo, Ricardo A Toledo-Hérnandez, Lino Carmona, Itzel Lima, Trevor Williams
The improvement of trap-lure combinations is an important part of integrated pest management programs that involve monitoring pests for timely insecticide applications, or for their use in control strategies such as mass trapping or bait stations. In this study improvements in the capture of Drosophila suzukii were not observed following the inclusion of different color stimuli with respect to a red-black stripe cup trap. This red-black stripe trap with a hemispherical dome-shaped lid had a significantly improved physical retention of flies compared to traps fitted with a flat lid...
2017: PloS One
https://www.readbyqxmd.com/read/29148613/ambrosia-artemisiifolia-as-a-potential-resource-for-management-of-golden-apple-snails-pomacea-canaliculata-lamarck
#18
Wenbing Ding, Rui Huang, Zhongshi Zhou, Hualiang He, Youzhi Li
BACKGROUND: Ambrosia artemisiifolia, an invasive weed in Europe and Asia, is highly toxic to the golden apple snail (GAS; Pomacea canaliculata) in laboratory test. However, little is known about the chemical components of A. artemisiifolia associated with the molluscicidal activity or about its potential application for GAS control in rice fields. This study evaluated the molluscicidal activities of powders, methanol extracts, and individual compounds from A. artemisiifolia against GAS in rice fields and under laboratory conditions...
November 17, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29148167/monitoring-resistance-of-cydia-pomonella-l-spanish-field-populations-to-new-chemical-insecticides-and-the-mechanisms-involved
#19
Dolors Bosch, Marcela A Rodríguez, Jesús Avilla
BACKGROUND: A widespread resistance of Cydia pomonella to organophosphates was demonstrated in populations from the Spanish Ebro Valley area that showed high levels of enzymatic detoxification. To determine the efficacy of new insecticides, neonate larvae bioassays were carried out on twenty field codling moth populations collected from three different Spanish apple production areas. Synergist bioassays were performed to detect the enzymatic mechanisms involved. RESULTS: The least active ingredients were methoxyfenozide, with 100% of the populations showing significantly lower mortality than the susceptible strain, and lambda-cyhalothrin, with very high resistant ratios (872...
November 16, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29148054/transcriptome-analysis-unravels-an-ethylene-response-factor-involved-in-regulating-fruit-ripening-in-pear
#20
Ping-Ping Hao, Guo-Ming Wang, Hai-Yan Cheng, Ya-Qi Ke, Kai-Jie Qi, Chao Gu, Shao-Ling Zhang
Ethylene response factor (ERF) has been widely studied in regulating fruit ripening in tomato, apple, banana and kiwifruit, but little is known in pear. In this study 1-methylcyclopropene (1-MCP) treatment, an inhibitor of ethylene perception, was conducted at approximately 30 days before harvest to delay fruit ripening in a climacteric white pear cultivar Yali. Transcriptome libraries were constructed and sequenced in pre-ripening, ripening, and 1-MCP treated fruits. Data analysis showed that 73 candidate genes related to fruit ripening were induced by 1-MCP, among which two were positively related, namely 1-aminocyclopropane-1-carboxyla oxidase and an ERF gene (designated as ACO54 and ERF24)...
November 16, 2017: Physiologia Plantarum
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