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排序方式: 共有71条查询结果,搜索用时 312 毫秒
31.
Marco Parolini Andrea Binelli Valerio Matozzo Maria Gabriella Marin 《Journal of Soils and Sediments》2010,10(7):1362-1379
Purpose
The Lagoon of Venice is a well-known Italian environment characterized by heavy chemical pollution. Few studies have been carried out to evaluate the probable hazards of the chemical mixtures toward the biocoenosis. This is the first comprehensive study aimed at the evaluation of the possible adverse effects for benthic organisms from the Lagoon of Venice due to some persistent organic pollutants by using three different sediment quality guidelines (SQGs). 相似文献32.
Ugolini L Della Noce I Trincia P Borzatta V Palmieri S 《Journal of agricultural and food chemistry》2005,53(19):7494-7501
Previous work demonstrated that a commercial formulation of piperonyl butoxide (PBO) did inhibit the activity of some plant proteolytic enzymes. In this paper, the effect of pure PBO and nine pure PBO homologues (PBOH) appropriately synthesized toward bromelain and papain was studied in hydrocarbon solution using the bis(2-ethylhexyl)sodium sulfosuccinate (AOT) reverse micellar system. This study establishes that the majority of these compounds show, in vitro, interesting protease inhibition activities. The benzodioxole and dihydrobenzofuran structures, in particular, 5-[2-(2-butoxyethoxy)ethoxymethyl]-benzo[1,3]dioxole (EN 1-40) and 6-[2-(2-butoxyethoxy)ethoxymethyl]-5-propyl-2,3-dihydrobenzofuran (EN 16-5), respectively, appear to be responsible for protease inhibition. Measures of octanol/water partition coefficients on PBO and PBOH have demonstrated that water solubility plays a fundamental role in the expression of protease inhibition activity. 相似文献
33.
Landscape Ecology - Nestedness is a common pattern of species assemblages in fragmented landscapes. The spatial pattern and ecological drivers of nested communities have been widely explored, but... 相似文献
34.
Fusco Valeria Pasciuta Vittorio Lumia Valentina Matere Antonio Battaglia Valerio Bertinelli Giorgia Sansone Domenico Brunetti Angela Pilotti Massimo 《European journal of plant pathology / European Foundation for Plant Pathology》2022,163(1):71-96
European Journal of Plant Pathology - Lethal wilting was observed on young olive trees cv Favolosa in a grove in central Italy. White mycelial strands wrapped the basal portion of the stems that... 相似文献
35.
Garcia MV Monteiro AC Szabó MP Mochi DA Simi LD Carvalho WM Tsuruta SA Barbosa JC 《Veterinary parasitology》2011,181(2-4):267-273
This work aimed to assess the effect of the fungus Metarhizium anisopliae on off-host Rhipicephalus (Boophilus) microplus from tick-infested Brachiaria decumbens pasture undergoing cattle grazing. For this purpose a naturally tick-infested Brachiaria decumbens pasture of 60 m × 100 m with twelve grazing Holstein Friesian-Nelore (Bos indicus) cross breed bovines was sprayed 12 times, 21 days apart with an aqueous conidial suspension of the E9 isolate of M. anisopliae fungus. Control pasture was treated with conidial suspension vehicle only. Efficacy of treatment was evaluated by tick larvae counts on the pasture and that of engorged female ticks on grazing cattle. Fungus persistence on grass stems as well as soil pasture was assessed after each spray. Efficacy of fungus against ticks was also measured by an in vitro immersion test. Whereas in vitro test showed a clear pathogenic effect of the fungus on ticks, no pathogenic effect over R. (B.) microplus ticks was detected in the field trial by spraying pasture with fungal suspension. Fungus from the suspension could be recovered from both the grass stem as well as the soil of sprayed pasture, even though the numbers obtained varied distinctly and could only be recovered shortly after spray. Pasture environments with exposure to sun and rain, seem to be very detrimental to the fungus, thus suspensions which provide fungus with protection or more resistant isolates to these should be looked for. In order to achieve high fungal efficacy against tick under field conditions, accurate laboratory assays, optimization of application strategy and knowledge of interactions between fungal strains and environmental factors are warranted. 相似文献
36.
The effects of collection time, cutting age, indole-3-butyric acid (IBA) and putrescine application on the rooting of cuttings of Italian hazelnut cultivars ‘Tonda Gentile Romana’, ‘Tonda di Giffoni’ and ‘Nocchione’ were investigated. Samples collected during late June, late July and early September from newly formed and 1-year old part of twigs to be utilized to produce leafy cuttings, after being treated with 1000 and 2000 ppm IBA, respectively. In addition, the September cuttings were also treated, respectively, with 1000 and 2000 ppm IBA and 1600 ppm putrescine. Rooting ability was evaluated 2 months after planting for each treatment and collection time. Satisfactory rooting of hazelnut leafy cuttings was observed when collection time occurred in June and September, whereas leafy cuttings collected in July showed a limited capacity of rooting in all cultivars tested. On average, the rooting of the newly formed leafy cuttings was more than the 1-year old cuttings. Rooting was also promoted by IBA treatments, mainly in ‘Nocchione’ and ‘Tonda di Giffoni’. In contrast, young cuttings collected from ‘Tonda Gentile Romana’ in early September rooted poorly when treated with IBA alone, but showed the best rooting (∼80%) after the application of a combination of 1000 ppm IBA and 1600 ppm putrescine. The current findings confirm that putrescine can be a useful substance for increasing rooting percentage and root quality in cuttings of some hazelnut cultivars as obtained from ‘Tonda Gentile Romana’ cultivar. 相似文献
37.
38.
Silvestre García de Jalón Paul J. Burgess Anil Graves Gerardo Moreno Jim McAdam Eric Pottier Sandra Novak Valerio Bondesan Rosa Mosquera-Losada Josep Crous-Durán Joao H. N. Palma Joana A. Paulo Tania S. Oliveira Eric Cirou Yousri Hannachi Anastasia Pantera Régis Wartelle Sonja Kay Nina Malignier Philippe Van Lerberghe Penka Tsonkova Jaconette Mirck Mercedes Rois Anne Grete Kongsted Claudine Thenail Boki Luske Staffan Berg Marie Gosme Andrea Vityi 《Agroforestry Systems》2018,92(4):829-848
Whilst the benefits of agroforestry are widely recognised in tropical latitudes few studies have assessed how agroforestry is perceived in temperate latitudes. This study evaluates how stakeholders and key actors including farmers, landowners, agricultural advisors, researchers and environmentalists perceive the implementation and expansion of agroforestry in Europe. Meetings were held with 30 stakeholder groups covering different agroforestry systems in 2014 in eleven EU countries (Denmark, France, Germany, Greece, Hungary, Italy, Netherlands, Portugal, Spain, Sweden and the United Kingdom). In total 344 valid responses were received to a questionnaire where stakeholders were asked to rank the positive and negative aspects of implementing agroforestry in their region. Improved biodiversity and wildlife habitats, animal health and welfare, and landscape aesthetics were seen as the main positive aspects of agroforestry. By contrast, increased labour, complexity of work, management costs and administrative burden were seen as the most important negative aspects. Overall, improving the environmental value of agriculture was seen as the main benefit of agroforestry, whilst management and socio-economic issues were seen as the greatest barriers. The great variability in the opportunities and barriers of the systems suggests enhanced adoption of agroforestry across Europe will be most likely to occur with specific initiatives for each type of system. 相似文献
39.
40.
Valerio Leoni Carlo Cremisini Alessandra Casuccio Antonio Gullotti 《Pest management science》1991,31(2):209-220
Multi-residue analyses of pesticides and related compounds generally require clean-up procedures for the elimination of interfering substances. An analytical procedure for use in the recovery and determination of pesticides and other pollutants in water samples is described, in which the purification of the extracts is improved by the separation of pesticides into four groups. The separation of pesticides by silica-gel microcolumn chromatography is explained in detail. 相似文献