170 research outputs found

    Complete Genome Sequences of Six Copper-Resistant Xanthomonas Strains Causing Bacterial Spot of Solaneous Plants, Belonging to X. gardneri, X. euvesicatoria, and X. vesicatoria, Using Long-Read Technology

    Get PDF
    Xanthomonas vesicatoria, Xanthomonas euvesicatoria, and Xanthomonas gardneri cause bacterial spot disease. Copper has been applied since the 1920s as part of integrated management programs. The first copper-resistant strains were reported some decades later. Here, we fully sequenced six Xanthomonas strains pathogenic to tomato and/or pepper and having a copper-resistant phenotype.EEA Bella VistaFil: Richard, Damien. CIRAD, UMR PVBMT; Francia. ANSES, Plant Health Laboratory; Francia. Université de la Réunion; FranciaFil: Boyer, Claudine. CIRAD, UMR PVBMT; FranciaFil: Lefeuvre, Pierre. CIRAD, UMR PVBMT; FranciaFil: Canteros, Blanca Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; ArgentinaFil: Beni-Madhu, Shyam. FAREI; Isla MauricioFil: Portier, Perrine. Institut Nationale de la Recherche Agronomique. Institut de Recherche en Horticulture et Semences; FranciaFil: Pruvost, Olivier. CIRAD, UMR PVBMT; Franci

    Growing Vitis vinifera grapes in New York State. I - Performance of new and interesting varieties

    Full text link
    47 pages, includes color images. Varieties: Bacchus, Cabernet Sauvignon, Cabernet franc, Chardonnay, Clevener Mariafeld, Comtessa, Ehrenfelser, Furmint, Gamay Beaujolais, Gewurztraminer, Melon, Merlot, Metternich, Morio Muscat, Muscat Ottonel, Noblessa, Optima, Ortega, Perle, Petit Sirah, Pinot blanc, Pinot gris, Pinot noir, Portugieser Blau(er), Reichensteiner, Rieslaner, Sauvignon blanc, Scheurebe, Siegerrebe, Spatburgunder (Blauer), Sylvaner, White Riesling, Zinfandel.Issued circa 1990, this publication is a collaborative effort between the New York Wine & Grape Foundation and the Communications Services unit of the New York State Agricultural Experiment Station, Cornell University, Geneva NY. This is the only report in the series (although subsequent titles were originally planned). It describes 33 varieties of Vitis vinifera which were evaluated for potential use in New York State –of those, 11 are recommended. Some history and background information is given as well as regional precipitation and temperature data for grape test sites

    Environmental assessment of the behavior of a BOF steel slag used in road construction : the PRECODD-ECLAIR research program

    Get PDF
    International audienceSteel production generate great amounts of by-products as steel slags. The use of Basic Oxygen Furnace slags (BOF slags) has been restrained due to insufficient volume stability, and due to the lack of environmental regulations. The purpose of the PRECODD-ECLAIR research program is to develop a behavior model based on a multi-scale physico-chemical, mechanical, hydrodynamic and ecotoxicological characterizations of a BOF slag used in a public works scenario. This paper aims at presenting the overall ECLAIR research program, the equipped experimental platform constructed using a BOF steel slag, and the first results of the slag characterization

    Isolation of Escherichia coli O157:H7 from Intact Colon Fecal Samples of Swine1

    Get PDF
    Escherichia coli O157:H7 was recovered from colon fecal samples of pigs. Polymerase chain reaction confirmed two genotypes: isolates harboring the eaeA, stx1, and stx2 genes and isolates harboring the eaeA, stx1, and hly933 genes. We demonstrate that swine in the United States can harbor potentially pathogenic E. coli O157:H7

    Energy Efficient Electrochromic Windows Incorporating Ionic Liquids

    Get PDF
    One approach to increasing the energy efficiency of windows is to control the amount of solar radiation transmitted through a window by using electrochromic technology. What is unique about this project is that the electrochromic is based on the reduction/oxidation reactions of cathodic and anodic organic semi-conducting polymers using room temperature ionic liquids as ion transport electrolytes. It is believed that these types of coatings would be a lower cost alternative to traditional all inorganic thin film based electrochromic technologies. Although there are patents1 based on the proposed technology, it has never been reduced to practice and thoroughly evaluated (i.e. durability and performance) in a window application. We demonstrate that by using organic semi-conductive polymers, specific bands of the solar spectrum (specifically visible and near infrared) can be targeted for electrochemical variable transmittance responsiveness. In addition, when the technology is incorporated into an insulating glass unit, the energy parameters such as the solar heat gain coefficient and the light to solar gain ratio are improved over that of a typical insulating glass unit comprised of glass with a low emissivity coating. A minimum of {approx}0.02 quads of energy savings per year with a reduction of carbon emissions for electricity of {approx}320 MKg/yr benefit is achieved over that of a typical insulating glass unit including a double silver low-E coating. Note that these values include a penalty in the heating season. If this penalty is removed (i.e. in southern climates or commercial structures where cooling is predominate year-round) a maximum energy savings of {approx}0.05 quad per year and {approx}801 MKg/yr can be achieved over that of a typical insulating glass unit including a double silver low-E coating. In its current state, the technology is not durable enough for an exterior window application. The primary downfall is that the redox chemistry fails to recover to a bleached state upon exposure to heat and solar radiation while being cycled over time from the bleached to the dark state. Most likely the polymers are undergoing degradation reactions which are accelerated by heat and solar exposure while in either the reduced or oxidized states and the performance of the polymers is greatly reduced over time. For this technology to succeed in an exterior window application, there needs to be more work done to understand the degradation of the polymers under real-life application conditions such as elevated temperatures and solar exposure so that recommendations for improvements in to the overall system can be made. This will be the key to utilizing this type of technology in any future real-life applications

    Emergence of the cortical encoding of phonetic features in the first year of life.

    Get PDF
    Even prior to producing their first words, infants are developing a sophisticated speech processing system, with robust word recognition present by 4-6 months of age. These emergent linguistic skills, observed with behavioural investigations, are likely to rely on increasingly sophisticated neural underpinnings. The infant brain is known to robustly track the speech envelope, however previous cortical tracking studies were unable to demonstrate the presence of phonetic feature encoding. Here we utilise temporal response functions computed from electrophysiological responses to nursery rhymes to investigate the cortical encoding of phonetic features in a longitudinal cohort of infants when aged 4, 7 and 11 months, as well as adults. The analyses reveal an increasingly detailed and acoustically invariant phonetic encoding emerging over the first year of life, providing neurophysiological evidence that the pre-verbal human cortex learns phonetic categories. By contrast, we found no credible evidence for age-related increases in cortical tracking of the acoustic spectrogram

    A phase 1/2 trial of HQK-1001, an oral fetal globin inducer, in sickle cell disease

    Get PDF
    Therapeutics which reduce the pathology in sickle cell syndromes are needed, particularly non-cytotoxic therapeutics. Fetal hemoglobin (HbF, α2Îł2) is established as a major regulator of disease severity; increased HbF levels correlate with milder clinical courses and improved survival. Accordingly, sodium dimethylbutyrate (HQK-1001), an orally-bioavailable, promoter-targeted fetal globin gene-inducing agent, was evaluated in a randomized, blinded, dose-ranging Phase I/II trial in 24 adult patients with HbSS or S/ÎČ thalassemia, to determine safety and tolerability of three escalating dose levels. The study therapeutic was administered once daily for two 6-week cycles, with a 2-week interim dose holiday. Twenty-one patients completed the study. Five patients received study drug at 10 or 20 mg/kg doses, seven patients received study drug at 30 mg/kg/dose, and 4 patients received placebo. HQK-1001 was well-tolerated with no unexpected drug-related adverse events; a dose-limiting toxicity was not identified. Plasma drug levels were sustained above targeted levels for 24 hours. Increases in HbF above baseline were observed particularly with 30 mg/kg/day doses; in five of seven treated patients, a mean absolute increase in HbF of 0.2 g/dl and a mean increase in total hemoglobin (Hgb) of 0.83 g/dl above baseline were observed, whereas no increases occurred in placebo-treated controls. These findings of favorable PK profiles, tolerability, early rises in HbF and total Hgb indicate that trials of longer duration appear warranted to more definitively evaluate the therapeutic potential of HQK-1001 in sickle cell disease
    • 

    corecore