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https://www.readbyqxmd.com/read/27926813/perturbation-of-h3k27me3-associated-epigenetic-processes-increases-agrobacterium-mediated-transformation
#1
Hidekazu Iwakawa, Benjamin C Carter, Brett C Bishop, Joe Ogas, Stanton B Gelvin
Agrobacterium-mediated transformation is a core technology for basic plant science and agricultural biotechnology. Improving transformation frequency is a major goal for plant transgenesis. We previously showed that T-DNA insertions in some histone genes decreased transformation susceptibility, whereas overexpression of several Arabidopsis H2A and H4 isoforms increased transformation. Overexpression of several histone H2B and H3 isoforms had little effect on transformation frequency. However, overexpression of histone H3-11 (HTR11) enhanced transformation...
December 7, 2016: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/27925068/occurrence-of-neospora-caninum-and-toxoplasma-gondii-antibodies-in-dogs-from-rural-properties-surrounding-a-biological-reserve-espirito-santo-brasil
#2
Igor da Cunha Lima Acosta, Luana D'Avila Centoducatte, Herbert Sousa Soares, Arlei Marcili, Maria Fernanda Naegeli Gondim, João Luiz Rossi, Solange Maria Gennari
The aim of this study was to determine the presence of antibodies to Neospora caninum and Toxoplasma gondii in serum samples of 187 dogs from 30 rural properties surrounding Córrego do Veado Biological Reserve, Espírito Santo State, Brazil. The Reserve is one of the last lowland Atlantic Forest remnants of the region, surrounded by agriculture farms and cattle pastures. The presence of IgG antibodies was determined by the Indirect Fluorescent Antibody Test for T. gondii (cut-off 1:16) and N. caninum (cut-off 1:50)...
December 1, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27924528/mycotoxins-an-underhand-food-problem
#3
Antonio Moretti, Antonio F Logrieco, Antonia Susca
Among the food safety issues, the occurrence of fungal species able to produce toxic metabolites on the agro-food products has acquired a general attention. These compounds, the mycotoxins, generally provided of low molecular weight, are the result of the secondary metabolism of the toxigenic fungi. They may have toxic activity toward the plants, but mostly represent a serious risk for human and animal health worldwide, since they can be accumulated on many final crop products and they have a broad range of toxic biological activities...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27920773/glucose-metabolism-via-the-entner-doudoroff-pathway-in-campylobacter-a-rare-trait-that-enhances-survival-and-promotes-biofilm-formation-in-some-isolates
#4
Christina S Vegge, Melissa J Jansen van Rensburg, Janus J Rasmussen, Martin C J Maiden, Lea G Johnsen, Morten Danielsen, Sheila MacIntyre, Hanne Ingmer, David J Kelly
Isolates of the zoonotic pathogen Campylobacter are generally considered to be unable to metabolize glucose due to lack of key glycolytic enzymes. However, the Entner-Doudoroff (ED) pathway has been identified in Campylobacter jejuni subsp. doylei and a few C. coli isolates. A systematic search for ED pathway genes in a wide range of Campylobacter isolates and in the C. jejuni/coli PubMLST database revealed that 1.7% of >6,000 genomes encoded a complete ED pathway, including both C. jejuni and C. coli from diverse clinical, environmental and animal sources...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27919305/a-new-model-for-parent-of-origin-effect-analyses-applied-to-brown-swiss-cattle-slaughterhouse-data
#5
I Blunk, M Mayer, H Hamann, N Reinsch
Genomic imprinting is a phenomenon that arises when the expression of genes depends on the parental origin of alleles. Epigenetic mechanisms may induce the full or partial suppression of maternal or paternal alleles, thereby leading to different types of imprinting. However, imprinting effects have received little consideration in animal breeding programmes, although their relevance to some agricultural important traits has been demonstrated. A recently proposed model (imprinting model) with two path-of-transmission (male and female)-specific breeding values for each animal accounts for all types of imprinting simultaneously (paternal, maternal, full and partial)...
December 6, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27918485/somatic-cell-nuclear-transfer-followed-by-cripsr-cas9-microinjection-results-in-highly-efficient-genome-editing-in-cloned-pigs
#6
Timothy P Sheets, Chi-Hun Park, Ki-Eun Park, Anne Powell, David M Donovan, Bhanu P Telugu
The domestic pig is an ideal "dual purpose" animal model for agricultural and biomedical research. With the availability of genome editing tools such as clustered regularly interspaced short palindromic repeat (CRISPR) and associated nuclease Cas9 (CRISPR/Cas9), it is now possible to perform site-specific alterations with relative ease, and will likely help realize the potential of this valuable model. In this article, we investigated for the first time a combination of somatic cell nuclear transfer (SCNT) and direct injection of CRISPR/Cas ribonucleoprotein complex targeting GRB10 into the reconstituted oocytes to generate GRB10 ablated Ossabaw fetuses...
December 3, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27917987/the-future-of-pastoralism-an-introduction
#7
J Zinsstag, E Schelling, B Bonfoh, L Crump, S KrÄtli
Two-thirds of the agricultural land on planet Earth is grassland on which no other crops can be grown, either because of limited rainfall, high altitude or mountainous conditions. Most of these semi-arid and high-altitude pastoral ecosystems are used by livestock husbandry systems with various forms of mobility and are not in competition with crop production for human nutrition. By devoting an issue of its Scientific and Technical Review to pastoralism, the World Organisation for Animal Health (OIE) is encouraging debate on this important topic and helping to shape the future of pastoralists and their livestock...
November 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/27916585/perinatal-exposure-to-glyphosate-based-herbicide-alters-the-thyrotrophic-axis-and-causes-thyroid-hormone-homeostasis-imbalance-in-male-rats
#8
Janaina Sena de Souza, Marina Malta Letro Kizys, Rodrigo Rodrigues da Conceição, Gabriel Glebocki, Renata Marino Romano, Tania Maria Ortiga-Carvalho, Gisele Giannocco, Ismael Dale Cotrim Guerreiro da Silva, Magnus Regios Dias da Silva, Marco Aurélio Romano, Maria Izabel Chiamolera
Glyphosate-based herbicides (GBHs) are widely used in agriculture. Recently, several animal and epidemiological studies have been conducted to understand the effects of these chemicals as an endocrine disruptor for the gonadal system. The aim of the present study was to determine whether GBHs could also disrupt the hypothalamic-pituitary-thyroid (HPT) axis. Female pregnant Wistar rats were exposed to a solution containing GBH Roundup(®)Transorb (Monsanto). The animals were divided into three groups (control, 5mg/kg/day or 50mg/kg/day) and exposed from gestation day 18 (GD18) to post-natal day 5 (PND5)...
December 1, 2016: Toxicology
https://www.readbyqxmd.com/read/27914350/phosphorus-flows-in-a-peri-urban-region-with-intensive-food-production-a-case-study
#9
S Bittman, S C Sheppard, D Poon, D E Hunt
Excess phosphorus (P) in peri-urban regions is an emerging issue, whereas there is global depletion of quality mined supplies of P. The flow of P across the landscape leading to regional surpluses and deficits is not well understood. We computed a regional P budget with internal P flows in a fairly discreet peri-urban region (Lower Fraser Valley, BC) with closely juxtaposed agricultural and non-agricultural urban ecosystems, in order to clarify the relationship between food production, food consumption and other activities involving use of P (e...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27912244/environmental-sustainability-analysis-and-nutritional-strategies-of-animal-production-in-china
#10
Bie Tan, Yulong Yin
Animal production in China has achieved considerable progress and contributes to46%of the total agriculture output value of the country. However, this fast expansion of animal production has led to environmental pollution. In this article, we review the status of soil, water, and air pollution associated with animal production in China and analyze the main sources of the pollutants. The government has promulgated regulations and standards, and effective models and technologies have been developed to control pollution during the last 10 years...
November 21, 2016: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/27912029/how-to-establish-a-bioregenerative-life-support-system-for-long-term-crewed-missions-to-the-moon-or-mars
#11
Yuming Fu, Leyuan Li, Beizhen Xie, Chen Dong, Mingjuan Wang, Boyang Jia, Lingzhi Shao, Yingying Dong, Shengda Deng, Hui Liu, Guanghui Liu, Bojie Liu, Dawei Hu, Hong Liu
To conduct crewed simulation experiments of bioregenerative life support systems on the ground is a critical step for human life support in deep-space exploration. An artificial closed ecosystem named Lunar Palace 1 was built through integrating efficient higher plant cultivation, animal protein production, urine nitrogen recycling, and bioconversion of solid waste. Subsequently, a 105-day, multicrew, closed integrative bioregenerative life support systems experiment in Lunar Palace 1 was carried out from February through May 2014...
December 2, 2016: Astrobiology
https://www.readbyqxmd.com/read/27909941/degradation-and-half-life-of-dna-present-in-biomass-from-a-genetically-modified-organism-during-land-application
#12
Mathew C Halter, James A Zahn
White biotechnology has made a positive impact on the chemical industry by providing safer, more efficient chemical manufacturing processes that have reduced the use of toxic chemicals, harsh reaction conditions, and expensive metal catalysts, which has improved alignment with the principles of Green Chemistry. The genetically-modified (GM) biocatalysts that are utilized in these processes are typically separated from high-value products and then recycled, or eliminated. Elimination routes include disposal in sanitary landfills, incineration, use as a fuel, animal feed, or reuse as an agricultural soil amendment or other value-added products...
December 1, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27908773/does-the-effect-of-a-metarhizium-anisopliae-isolate-on-rhipicephalus-microplus-depend-on-the-tick-population-evaluated
#13
Anelise Webster, Endrigo Pradel, Ugo Araújo Souza, João Ricardo Martins, José Reck, Augusto Schrank, Guilherme Klafke
The filamentous fungus Metarhizium anisopliae is an arthropod pathogen used in the biological control of pests in agriculture and livestock. The effect of the fungus M. anisopliae on ticks has been shown in experiments in vitro. The aim of the present study was to compare the susceptibility of different field isolates of Rhipicephalus microplus to M. anisopliae. A total of 67 field isolates were evaluated. Rhipicephalus microplus larvae were immersed in an M. anisopliae suspension (10(8) conidia/mL) for 5min...
November 24, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27907920/aneuploidy-detection-and-mtdna-quantification-in-bovine-embryos-with-different-cleavage-onset-using-a-next-generation-sequencing-based-protocol
#14
Miroslav Hornak, David Kubicek, Petr Broz, Pavlina Hulinska, Katerina Hanzalova, Darren Griffin, Marie Machatkova, Jiri Rubes
Bovine embryos are now routinely used in agricultural systems as a means of disseminating superior genetics worldwide, ultimately with the aim of feeding an ever-growing population. Further investigations, common for human IVF embryos, thus have priority to improve cattle IVF, as has screening for aneuploidy (abnormal chromosome number). Although the incidence and consequences of aneuploidy are well documented in human preimplantation embryos, they are less well known for the embryos of other animals. To address this, we assessed aneuploidy levels in thirty-one 2-cell bovine embryos derived from early- and late-cleaving zygotes...
December 2, 2016: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/27905924/current-knowledge-and-perspectives-of-paenibacillus-a-review
#15
REVIEW
Elliot Nicholas Grady, Jacqueline MacDonald, Linda Liu, Alex Richman, Ze-Chun Yuan
Isolated from a wide range of sources, the genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment. Many Paenibacillus species can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition. They can also offer protection against insect herbivores and phytopathogens, including bacteria, fungi, nematodes, and viruses...
December 1, 2016: Microbial Cell Factories
https://www.readbyqxmd.com/read/27903326/characterizing-areas-of-potential-human-exposure-to-eastern-equine-encephalitis-virus-using-serological-and-clinical-data-from-horses
#16
J-P Rocheleau, J Arsenault, N H Ogden, L R Lindsay, M Drebot, P Michel
Eastern equine encephalitis (EEE) is a rare but severe emerging vector-borne disease affecting human and animal populations in the northeastern United States where it is endemic. Key knowledge gaps remain about the epidemiology of EEE virus (EEEV) in areas where its emergence has more recently been reported. In Eastern Canada, viral activity has been recorded in mosquitoes and horses throughout the 2000s but cases of EEEV in humans have not been reported so far. This study was designed to provide an assessment of possible EEEV human exposure by modelling environmental risk factors for EEEV in horses, identifying high-risk environments and mapping risk in the province of Quebec, Canada...
December 1, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27902787/effects-of-a-possible-pollinator-crisis-on-food-crop-production-in-brazil
#17
Samuel M A Novais, Cássio A Nunes, Natália B Santos, Ana R D Amico, G Wilson Fernandes, Maurício Quesada, Rodrigo F Braga, Ana Carolina O Neves
Animal pollinators contribute to human food production and security thereby ensuring an important component of human well-being. The recent decline of these agents in Europe and North America has aroused the concern of a potential global pollinator crisis. In order to prioritize efforts for pollinator conservation, we evaluated the extent to which food production depends on animal pollinators in Brazil-one of the world's agriculture leaders-by comparing cultivated area, produced volume and yield value of major food crops that are pollinator dependent with those that are pollinator non-dependent...
2016: PloS One
https://www.readbyqxmd.com/read/27902329/abundance-of-antibiotic-resistance-genes-in-environmental-bacteriophages
#18
Taruna Anand, Bidhan Ch Bera, Rajesh K Vaid, Sanjay Barua, Thachamvally Riyesh, Nitin Virmani, Mubarik Hussain, Raj K Singh, Bhupendra N Tripathi
The ecosystem is continuously exposed to a wide variety of antimicrobials through waste effluents, agricultural runoffs, animal related and anthropogenic activities, which contribute to spread of antibiotic resistance genes (ARGs). The contamination of ecosystems with ARGs may create increased opportunities for their transfer to naive microbes and eventually lead to entry into the human food chain. Transduction is a significant mechanism of horizontal gene transfer in natural environments, which has traditionally been underestimated as compared to transformation...
October 21, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27900889/campylobacter-jejuni-strains-coresistant-to-tetracycline-and-ciprofloxacin-in-patients-with-gastroenteritis-in-croatia
#19
Merica Carev, Ana Kovačić, Anita Novak, Marija Tonkić, Ana Jerončić
BACKGROUND: Antibiotic-resistant Campylobacter jejuni strains are rapidly emerging worldwide. Here, we aimed to determine the antibiotic-resistance patterns and genetic structure of C. jejuni from stool samples of symptomatic patients in Dalmatia, the largest Croatian county. METHODS: In a population-based laboratory surveillance programme for campylobacteriosis in Dalmatia from May 2012 to May 2013, C. jejuni (n = 76) were collected from stool samples of all the patients hospitalized with gastroenteritis and matched positive outpatients (n = 77)...
November 30, 2016: Infectious Diseases
https://www.readbyqxmd.com/read/27899156/echinococcus-multilocularis-in-foxes-and-raccoon-dogs-an-increasing-concern-for-baltic-countries
#20
Guna Bagrade, Gunita Deksne, Zanda Ozoliņa, Samantha Jane Howlett, Maria Interisano, Adriano Casulli, Edoardo Pozio
BACKGROUND: In Europe, the life-cycle of Echinococcus multilocularis is predominantly sylvatic, involving red foxes (Vulpes vulpes) as the main definitive hosts and rodents such as muskrats and arvicolids as intermediate hosts. The parasite is the etiological agent of human alveolar echinococcosis, a malignant zoonotic disease caused by the accidental ingestion of eggs shed by definitive hosts in their faeces. The aims of this study were to investigate the prevalence of E. multilocularis in red foxes and raccoon dogs (Nyctereutes procyonoides) and to study the environmental factors favouring the perpetuation of the parasite in Latvia...
November 29, 2016: Parasites & Vectors
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