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https://www.readbyqxmd.com/read/28740750/herbicide-injury-induces-dna-methylome-alterations-in-arabidopsis
#1
Gunjune Kim, Christopher R Clarke, Hailey Larose, Hong T Tran, David C Haak, Liqing Zhang, Shawn Askew, Jacob Barney, James H Westwood
The emergence of herbicide-resistant weeds is a major threat facing modern agriculture. Over 470 weedy-plant populations have developed resistance to herbicides. Traditional evolutionary mechanisms are not always sufficient to explain the rapidity with which certain weed populations adapt in response to herbicide exposure. Stress-induced epigenetic changes, such as alterations in DNA methylation, are potential additional adaptive mechanisms for herbicide resistance. We performed methylC sequencing of Arabidopsis thaliana leaves that developed after either mock treatment or two different sub-lethal doses of the herbicide glyphosate, the most-used herbicide in the history of agriculture...
2017: PeerJ
https://www.readbyqxmd.com/read/28740503/interaction-of-2-4-d-or-dicamba-with-glufosinate-for-control-of-glyphosate-resistant-giant-ragweed-ambrosia-trifida-l-in-glufosinate-resistant-maize-zea-mays-l
#2
Zahoor A Ganie, Amit J Jhala
Glyphosate-resistant (GR) giant ragweed is a problematic broadleaf weed in crops including maize and soybean in the Midwestern United States. Commercialization of crops with 2,4-D or dicamba and glufosinate resistance will allow post-emergence (POST) applications of these herbicides. Therefore, information is needed on how 2,4-D/dicamba will interact with glufosinate in various rate combinations. The objectives of this study were to evaluate the interaction of glufosinate plus 2,4-D and/or dicamba for control of GR giant ragweed, and to determine their effect on GR giant ragweed density, biomass, maize injury, and yield...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28735910/prevalence-of-obstructive-sleep-apnea-in-patients-with-posttraumatic-stress-disorder-and-its-impact-on-adherence-to-continuous-positive-airway-pressure-therapy-a-meta-analysis
#3
REVIEW
Ye Zhang, Jason G Weed, Rong Ren, Xiangdong Tang, Wei Zhang
OBJECTIVE: Although some authors have recently investigated the co-occurrence of posttraumatic stress disorder (PTSD) and obstructive sleep apnea (OSA), the topic remains insufficiently studied. The aim of this meta-analysis was to detect the pooled prevalence of OSA in PTSD and its impact on adherence to continuous positive airway pressure (CPAP) therapy. METHODS: We conducted a search for articles published until August 20, 2016, in PubMed, Embase, the Cochrane Library, and PsycINFO...
August 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28734097/first-report-of-ser653-asn-mutation-endowing-high-level-resistance-to-imazamox-in-downy-brome-bromus-tectorum-l
#4
Vipan Kumar, Prashant Jha
BACKGROUND: Bromus tectorum L. is one of the most troublesome grass weed species in cropland and non-cropland areas of the northwestern United States. In summer 2016, a B. tectroum accession (R) that survived imazamox at the field-use rate (44 g ha(-1) ) in an imidazolinone-tolerant (IMI-tolerant or Clearfield(™) ) winter wheat field was collected near Hammond, Carter County, MT, USA. The aim of this study was to determine the resistance profile of the B. tectroum R accession to imazamox and other ALS inhibitors, and investigate the mechanism of resistance to imazamox...
July 22, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28731230/effects-of-spray-drift-of-glyphosate-on-non-target-terrestrial-plants-a-critical-review
#5
REVIEW
Harald Cederlund
Glyphosate is a widely used broad-spectrum post-emergent herbicide used for weed control in both agricultural and non-agricultural settings. Spray drift of glyphosate can pose a risk to non-target terrestrial plants and plant communities outside the intended area of application, but the lack of a well-established predicted no-effect drift rate makes properly assessing such risk difficult. For this reason, a literature review and meta-analysis was carried out with the aim to determine which level of drift that is likely to cause harm to plants and to explore what spray-reducing targets that would be sufficiently protective...
July 21, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28729676/proteomic-profiling-of-the-weed-feverfew-a-neglected-pollen-allergen-source
#6
Isabel Pablos, Stephanie Eichhorn, Peter Briza, Claudia Asam, Ulrike Gartner, Martin Wolf, Christof Ebner, Barbara Bohle, Naveen Arora, Stefan Vieths, Fatima Ferreira, Gabriele Gadermaier
Feverfew (Parthenium hysterophorus), an invasive weed from the Asteraceae family, has been reported as allergen source. Despite its relevance, knowledge of allergens is restricted to a partial sequence of a hydroxyproline-rich glycoprotein. We aimed to obtain the entire sequence for recombinant production and characterize feverfew pollen using proteomics and immunological assays. Par h 1, a defensin-proline fusion allergen was obtained by cDNA cloning and recombinantly produced in E. coli. Using two complementary proteomic strategies, a total of 258 proteins were identified in feverfew pollen among those 47 proteins belonging to allergenic families...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728236/-epidemiological-investigation-of-allergic-rhinitis-in-ningxia
#7
X L Shen, D Zhao, X H Yan, P Yang, N Y Feng, W L Wen, H Y Ha, Z C Yang, L L Di, H Q Guo, H T Liu, R X Ma
Objective: To investigate the epidemiological characteristics of allergic rhinitis (AR) in Ningxia and to analyze its related factors. Methods: From March to September of 2013, a multi-stage and cluster sampling method was used to investigate the diagnosis and treatment of AR in Ningxia Area (3 years and above). Guidelines for diagnosis and treatment of allergic rhinitis (2009, Wuyishan) was used as the basis for the diagnosis of adult AR, while Guidelines for diagnosis and treatment of pediatric allergic rhinitis (2010, Chongqing) was used as the basis for children...
July 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28725364/interspecific-variation-in-persistence-of-buried-weed-seeds-follows-trade-offs-among-physiological-chemical-and-physical-seed-defenses
#8
Adam S Davis, Xianhui Fu, Brian J Schutte, Mark A Berhow, James W Dalling
Soil seedbanks drive infestations of annual weeds, yet weed management focuses largely on seedling mortality. As weed seedbanks increasingly become reservoirs of herbicide resistance, species-specific seedbank management approaches will be essential to weed control. However, the development of seedbank management strategies can only develop from an understanding of how seed traits affect persistence.We quantified interspecific trade-offs among physiological, chemical, and physical traits of weed seeds and their persistence in the soil seedbank in a common garden study...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28724094/temperature-impacts-on-soil-microbial-communities-and-potential-implications-for-the-biodegradation-of-turfgrass-pesticides
#9
Lisa M Reedich, Michael D Millican, Paul L Koch
Maintaining healthy turfgrass often results in the use of pesticides to manage weed, insect, and disease pests. To identify and understand potential nontarget impacts of pesticide usage while still maintaining attractive and functional turfgrass sites, it is important to improve our understanding of how pesticides degrade in various environments throughout the growing season. Temperature heavily influences microbial community composition and activity, and the microbial community often heavily influences pesticide degradation in soil ecosystems...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28722254/determination-of-irritant-threshold-concentrations-of-multiple-tree-grass-weed-and-mould-allergens-for-intradermal-testing-of-horses-residing-in-the-southern-usa
#10
Martha J Lane, Cherie M Pucheu-Haston, Michael T Kearney, Michelle Woodward
BACKGROUND: Appropriate allergen threshold concentrations (TCs) for intradermal testing (IDT) have not been established in horses for many pollen and mould allergens. OBJECTIVES: To determine the TCs in non-allergic horses and describe the frequency of late phase reactions for 26 allergens, including trees, grasses, weeds and moulds in horses residing in the southern Unites States. ANIMALS: Twenty four clinically normal horses in the southern United States...
July 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28718779/a-review-and-experimental-study-on-application-of-classifiers-and-evolutionary-algorithms-in-eeg-based-brain-machine-interface-systems
#11
Farajollah Tahernezhad-Javazm, Vahid Azimirad, Maryam Shoaran
OBJECTIVE: Considering the importance and the near future development of noninvasive Brain-Machine Interface (BMI) systems, this paper presents a comprehensive theoretical-experimental survey on the classification and evolutionary methods for BMI-based systems in which EEG signals are used. APPROACH: The paper is divided into two main parts. In the first part a wide range of different types of the base and combinatorial classifiers including boosting and bagging classifiers and also evolutionary algorithms are reviewed and investigated...
July 18, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28718021/evidence-for-photolytic-and-microbial-degradation-processes-in-the-dissipation-of-leptospermone-a-natural-%C3%AE-triketone-herbicide
#12
Sana Romdhane, Marion Devers-Lamrani, Fabrice Martin-Laurent, Amani Ben Jrad, Delphine Raviglione, Marie-Virginie Salvia, Pascale Besse-Hoggan, Franck E Dayan, Cédric Bertrand, Lise Barthelmebs
Bioherbicides appear as an ecofriendly alternative to synthetic herbicides, generally used for weed management, because they are supposed to have low side on human health and ecosystems. In this context, our work aims to study abiotic (i.e., photolysis) and biotic (i.e,. biodegradation) processes involved in the fate of leptospermone, a natural β-triketone herbicide, by combining chemical and microbiological approaches. Under controlled conditions, the photolysis of leptospermone was sensitive to pH. Leptospermone has a half-life of 72 h under simulated solar light irradiations...
July 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28716422/development-of-imidazolinone-herbicide-tolerant-borage-borago-officinalis-l
#13
Dongyan Song, Guohai Wu, Patricia Vrinten, Xiao Qiu
Borage (Borago officinalis) is an annual herb that produces a high level of gamma-linolenic acid (GLA) in its seed oil. Due to the recognized health benefits of GLA, borage is now commercially cultivated worldwide. However, an herbicide-tolerant variety for effective weed management has not yet been developed. Here we report the generation and characterization of ethyl methanesulfonate (EMS) induced borage mutant lines tolerant to the herbicide imidazolinone. An EMS-mutagenized borage population was generated by using a series of concentrations of EMS to treat mature borage seeds...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28715824/preoperative-geriatric-assessment-reduced-hospital-stay-and-complications-in-patients-%C3%A2-%C3%A2-65-y-having-vascular-surgery
#14
Harrison G Weed
No abstract text is available yet for this article.
July 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28714890/cardamom-cumin-and-dill-weed-essential-oils-chemical-compositions-antimicrobial-activities-and-mechanisms-of-action-against-campylobacter-spp
#15
Aysegul Mutlu-Ingok, Funda Karbancioglu-Guler
Natural antimicrobials as well as essential oils (EOs) have gained interest to inhibit pathogenic microorganisms and to control food borne diseases. Campylobacter spp. are one of the most common causative agents of gastroenteritis. In this study, cardamom, cumin, and dill weed EOs were evaluated for their antibacterial activities against Campylobacter jejuni and Campylobacter coli by using agar-well diffusion and broth microdilution methods, along with the mechanisms of antimicrobial action. Chemical compositions of EOs were also tested by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS)...
July 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28713519/common-solvents-for-making-extraction-of-allergenic-proteins-from-plants-pollens-for-prick-tests-and-related-factors-a-technical-review
#16
REVIEW
Hassan Mansouritorghabeh, Farahzad Jabbari-Azad, Abdolreza Varasteh, Mojtaba Sankian, Reza Farid-Hosseini
Collecting information on influencing factors in developing consistent and high-quality extracts results in accurate diagnosis and effective treatment of type I allergy (IgE mediated). Furthermore, considering that a large number of allergens are currently in practice, any attempt to develop a more effective procedure for preparing extract may be useful. Nowadays, different saline solvents, temperature, incubation time, and PH are being incorporated for preparing allergen extracts. The objective of the current study was to clear and address the commonest of solvent buffers and allied conditions for making extracts of pollens of grasses, trees, and weeds...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28713397/fitness-outcomes-related-to-glyphosate-resistance-in-kochia-kochia-scoparia-what-life-history-stage-to-examine
#17
Omobolanle Adewale Osipitan, Johanna Anita Dille
A fast-spreading weed, kochia (Kochia scoparia), has developed resistance to the widely-used herbicide, glyphosate. Understanding the relationship between the occurrence of glyphosate resistance caused by multiple EPSPS gene copies and kochia fitness may suggest a more effective way of controlling kochia. A study was conducted to assess fitness cost of glyphosate resistance compared to susceptibility in kochia populations at different life history stages, that is rate of seed germination, increase in plant height, days to flowering, biomass accumulation at maturity, and fecundity...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28712501/gene-editing-in-polyploid-crops-wheat-camelina-canola-potato-cotton-peanut-sugar-cane-and-citrus
#18
Donald P Weeks
Polyploid crops make up a significant portion of the major food and fiber crops of the world and include wheat, potato, cotton, apple, peanut, citrus, and brassica oilseeds such as rape, canola, and Camelina. The presence of three sets of chromosomes in triploids, four sets in tetraploids, and six sets in hexaploids present significant challenges to conventional plant breeding and, potentially, to efficient use of rapidly emerging gene and genome-editing systems such as zinc finger nucleases, single-stranded oligonucleotides, TALE effector nucleases, and clustered regularly interspaced short palindromic repeats (CRISPR/Cas9)...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28711978/the-activity-of-the-antioxidant-defense-system-of-the-weed-species-senna-obtusifolia-l-and-its-resistance-to-allelochemical-stress
#19
Érica Marusa Pergo Coelho, Mauro Cezar Barbosa, Márcio Shigueaki Mito, Gislaine Cristiane Mantovanelli, Rubem Silvério Oliveira, Emy Luiza Ishii-Iwamoto
Senna obtusifolia L., a common weed in the tropical and subtropical regions of the world, is able to germinate under adverse environmental conditions, suggesting that this species has efficient stress-adaptation strategies. The aims of the present work were to examine the energy metabolism and the antioxidant defense system of the Senna obtusifolia L. during seed germination and initial growth, and the responses to allelochemical-induced stress. Respiratory activity, the activities of alcohol dehydrogenase (ADH), superoxide dismutase (SOD), catalase (CAT),guaicol peroxidase (POD), ascorbate peroxidase (APX), glutathione reductase (GR), lipoxygenase (LOX) and the content of malondialdehyde (MDA) and glutathione (GSSG and GSH) were measured...
July 15, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28708416/subchronic-exposure-to-kalach-360-sl-induced-endocrine-disruption-and-ovary-damage-in-female-rats
#20
Latifa Hamdaoui, Manel Naifar, Fatma Rahmouni, Bahira Harrabi, Fatma Ayadi, Zouheir Sahnoun, Tarek Rebai
Kalach 360 SL (KL), glyphosate (G) surfactant-based herbicides, is a systemic herbicide effective against weeds. It was applied in agriculture in Tunisia and throughout the world, which can represent a risk to non-target organisms. The aim of this study was to investigate the morphological and biochemical aspects of ovary injury after exposure to KL. Female Wistar rats were divided into three groups: group 1 was used as a control; group 2 orally received 0.07 ml of KL, (126 mg of G/kg) and group 3 orally received 0...
July 14, 2017: Archives of Physiology and Biochemistry
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