排序方式： 共有113条查询结果，搜索用时 15 毫秒
31.
Pedro Romon-Ochoa Jelena Kranjec Orlović Caroline Gorton Alex Lewis Sietse van der Linde Ana Pérez-Sierra 《Plant pathology》2022,71(4):793-804
Cryphonectria parasitica was detected for the first time in the United Kingdom in 2011. A 2017–2018 survey detected the disease at different sites in Berkshire, Derbyshire, Devon, Dorset and London, while the present study comprises the results of the 2019–2020 survey with new findings and additional sites in the United Kingdom (Berkshire, Buckinghamshire, Cornwall, Derbyshire, Devon, London, West Sussex) and in Jersey, reflecting the progressive detection of more infected trees. A total of 189 samples were collected from 52 sites, and 123 samples tested positive both by quantitative real-time PCR and/or isolation from 43 sites. A total of 115 isolates were tested for mating type, vegetative compatibility group (VCG) and Cryphonectria hypovirus 1 (CHV-1). Twelve VCGs were identified, with four of them being first records in United Kingdom. The highest diversity of VCGs was detected in Devon followed by West Sussex while London and Derbyshire presented the lowest. Both mating types were detected (41% MAT-1 and 59% MAT-2), and no heterokaryons were detected. Perithecia of C. parasitica were not observed at any site during this survey. CHV-1 was detected in three isolates in very low concentration from three different locations in London and was always the unmutated subtype I haplotype E-5. A greater diversity of VCGs at outbreak sites compared with previous surveys, combined with their scattered distribution and the slow spread of the pathogen, supports the hypothesis that this disease has been introduced through imports over time from Europe. 相似文献
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Dejan Krcmar Milena Dalmacija Bozo Dalmacija Miljana Prica Jelena Trickovic Elvira Karlovic 《Journal of Soils and Sediments》2013,13(7):1318-1326
Purpose
The objective of this research was to apply the same immobilization (stabilization/solidification) clay-based treatments to sediment contaminated with different metals (Pb, Cd, Ni, Zn, Cu, Cr) with different distributions and availabilities in sediment. We also examined the possibility of using clay as an immobilization agent without the application of thermal treatment, in order to reduce the economic cost of this expensive remediation procedure.Materials and methods
Clay from a canal in Vojvodina, Republic of Serbia, was used as the immobilization agent in a stabilization/solidification treatment to remediate metal-contaminated sediment. Semi-dynamic and toxicity characteristic leaching tests were conducted to assess the effectiveness of the nonthermal and thermal immobilization treatments with clay, and the long-term leaching behavior of these metals was determined using the following parameters: cumulative percentage of metals leached; diffusion coefficients; leachability indices; and toxicity characteristic leaching test concentration.Results and discussion
Based on these parameters, both clay-based treatments were effective in immobilizing metals in the contaminated sediment. Results suggest that both heating temperature and clay proportion in the sediment–clay mixture impact the degree of metal immobilization.Conclusions
Clay-based products are potentially good immobilization materials for metal-contaminated sediments, with the distribution of metals in the original sediment not influencing the efficacy of the treatments. Even without the thermal treatment, the metals were effectively immobilized. The leaching of metals was largely inside the regulatory limits and the treated samples can be regarded as nonhazardous materials. This justifies the choice of not applying the more expensive thermal treatment during remediation, especially when treating sediments containing a mixture of pollutants. 相似文献33.
Novak Adrijana Ćosić Jasenka Vrandečić Karolina Jurković Draženka Plavec Jelena Križanac Ivana Ivić Dario 《植物病害和植物保护杂志》2021,128(4):1041-1049
Journal of Plant Diseases and Protection - Leaf mould (Passalora fulva) has emerged as an important disease of greenhouse-growing tomato crops in Croatia during the last decade. In order to... 相似文献
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Jelena Nikolic Gordana Pantelic Dragana Todorovic Marija Jankovic Maja Eremi? Savkovic 《Water, air, and soil pollution》2012,223(8):4823-4829
After the accident in Fukushima reactors, a daily monitoring programme was initiated in two laboratories in Belgrade, one at the Vin??? Institute for Nuclear Sciences and the other at Institute for Occupational Health Karajovic. Samples of aerosol and fallout, as well as the random samples of food and water, were collected and analysed, using gross alpha/beta and gamma spectrometry, in order to establish the presence of traces of isotopes indicating Fukushima fallout. Gamma spectrometry measurement of these samples showed clear evidence of fission products 131I, 134Cs and 137Cs wtihin 2?weeks after the accident. The activity diminished with time due to dispersion in air and, in case of 131I, short half-life. 相似文献
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The greenhouse trials were conducted to determine the efficacy of environmentally safe insecticides/fungicides with physical
mode of action [Agri-50E (propylene glycol alginate, hydrated) and SB Plant Invigorator] against Trialeurodes
vaporariorum (Westwood). The efficacy of Agri-50E on adults and nymphs (first, second, third, and fourth instars) was compared to the commercially
available standard Boxer 200 SL (imidacloprid) and an untreated control on greenhouse-grown poinsettia. Insecticides were
applied by foliar spraying, Agri-50E (2 or 3 ml/l) two times and Boxer 200 SL (1 ml/l) once. Three and 7 days after first
application (DAFA), imidacloprid was more effective than both concentrations of Agri-50E in controlling T. vaporariorum adults, whereas 10 DAFA there were no differences between insecticides. Twelve DAFA, imidacloprid was more effective than
Agri-50E in controlling first, second and third instars and after 19 days in controlling second, third, and fourth instars.
The results obtained from the poinsettia study, indicated that Agri-50E (2 or 3 ml/l) is successful in controlling T. vaporariorum adults and moderately effective against T. vaporariorum immature stages. In the second experiment, the efficacy of Agri-50E on adults was compared to SB Plant Invigorator (SBPI),
the standard treatment Calypso 480 SC (thiacloprid), and an untreated control on greenhouse-grown tomato. Agri-50E (3 ml/l)
and SBPI (2 ml/l) were applied four times while Calypso 480 SC (0.4 ml/l) was applied twice. The results obtained from tomato
study showed that SBPI was the most effective insecticide against T. vaporariorum adults, followed by Agri-50E and Calypso 480 EC. Beside the ecological benefits, the alternative insecticides Agri-50E and
SBPI might have an important role to play in future pest management programs. 相似文献
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Michaličková Danica Belović Miona Ilić Nebojša Kotur-Stevuljević Jelena Slanař Ondřej Šobajić Sladjana 《Plant foods for human nutrition (Dordrecht, Netherlands)》2019,74(1):122-127
Plant Foods for Human Nutrition - There is a growing body of evidence that tomato consumption reduces the risk of cardiovascular disease, through antioxidative, anti-inflammatory and hypotensive... 相似文献
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Sinisa Djurasevic Svetlana Bojic Biljana Nikolic Ivica Dimkic Zoran Todorovic Jelena Djordjevic Dragana Mitic-Culafic 《Plant foods for human nutrition (Dordrecht, Netherlands)》2018,73(4):295-301
The gut microbiota is composed of a diverse population of obligate and facultative anaerobic microorganisms which are shown to influence host metabolism and immune homeostasis. This study investigated the effects of virgin coconut oil on the weekly fasting glycaemia, daily food and water intake and weekly body mass gain over 16 weeks, as well as the changes in composition of gut microbiota in both non-diabetic and alloxan-induced diabetic rats. Although the intake of virgin coconut oil did not decrease the diabetes-induced hyperglycemia, it affected the secondary parameters, such as food and water intake and average body mass gain. Furthermore, its potential to positively affect the fecal microbiome was proved, since it significantly increased the abundance of probiotic bacteria, such as Lactobacillus, Allobaculum and Bifidobacterium species. 相似文献