Prevalence of Babesia canis, Borrelia afzelii, and Anaplasma phagocytophilum infection in hard ticks removed from dogs in Warsaw (central Poland)     

Zygner W  Jaros S  Wedrychowicz H 《Veterinary parasitology》2008,153(1-2):139-142

The purposes of this study were to specify the occurrence and prevalence of Babesia canis, Borrelia burgdorferi sensu lato, and Anaplasma phagocytophilum in ticks removed from dogs in Warsaw, and to determine the Borrelia species occurring in Ixodes ricinus ticks. Among 590 collected ticks, 209 were identified as I. ricinus, and 381 as Dermacentor reticulatus. DNA of B. canis was detected in 11% of D. reticulatus ticks. We found that 6.2% of I. ricinus ticks harbored B. burgdorferi s.l. specific DNA and 2.9% harbored A. phagocytophilum DNA. In these samples sequencing of the detected Borrelia amplicon confirmed infection with Borrelia afzelii genospecies. New sequences were submitted to the GenBank database (accession no. EU152128, EU152127, EU152126). This work is the first detection of B. afzelii and A. phagocytophilum in ticks from Warsaw, and the first survey for the prevalence of B. canis, B. afzelii, and A. phagocytophilum in ticks in central Poland.  相似文献   

Feline hip joint anatomy in magnetic resonance images     

Joanna G&#x;odek  Kamila Milewska  Angelika Tobolska  &#x;ukasz Grabarczyk  Wojciech Maksymowicz  Isaac Bada  Zbigniew Adamiak 《Anatomia, histologia, embryologia》2019,48(5):449-454

The aim of this study was to develop an anatomical model of the feline hip joint for low‐field magnetic resonance imaging (LF‐MRI) based on high‐field magnetic resonance imaging (HF‐MRI). The study was performed on six adult clinically healthy European shorthair cats, aged 1–3 years, with body weight of 2.8–4.4 kg. The animals were examined with the use of the Vet‐MRI Grande Esaote LF (0.25 T) scanner and high‐field Siemens Magnetom TRIO (3 T) MRI scanner. In the LF‐MRI, most satisfactory results in T1‐weighted images were obtained when TE was 26 ms in all three planes and when TR was 350–950 ms in the transverse plane, 950–1150 ms in the sagittal plane and 520–750 ms in the dorsal plane. In T2‐weighted images, TE was 90 ms in the transverse and dorsal plane and 120 ms in the sagittal plane. The results were presented as images acquired with LF‐MRI scanners in three planes. The slice thickness was 3 mm for each plane. In LF‐MRI, muscles in the hip joint region and round ligament were well visualized. Unlike in LF‐MRI, the cross section of the femoral nerve was identified in HF‐MRI scans. In examinations of the feline hip joint, the main limitations of LF‐MRI were a lack of reliable contrast between articular cartilage and synovial fluid as well as longer scan time. Despite the above, LF‐MRI images were characterized by good contrast between bones and the surrounding soft tissues.  相似文献   

Phosphorus toxicity in the Proteaceae: A problem in post-agricultural lands     

Heidi-Jayne Hawkins  Hans Hettasch  Jolanta Mesjasz-Przybylowicz  Wojciech Przybylowicz  Michael D. Cramer 《Scientia Horticulturae》2008,117(4):357-365

South African Proteaceae are adapted to the low soil phosphorus (P) concentrations of the Cape Floristic Region. The efficient P uptake by Proteaceae means that these plants experience phosphorus (P) toxicity at lower rhizosphere [P] than crop plants. This is only problematic when cultivating Proteaceae (and many plants from this region) on previously agricultural land with high residual soil [P]. In this study we hypothesize that P toxicity will result in element imbalances in leaves of Proteaceae and information from this study aims to facilitate ameliorative treatments. Phosphorus toxicity was induced on-farm in Leucadendron ‘Safari Sunset’ (Proteaceae) with subsequent mapping of element distribution in non-necrotic leaf tissue using micro particle-induced X-ray emission spectrometry. Phosphate supply up to 0.01 mM in a fertigation solution resulted in increased stem length of Leucadendron ‘Safari Sunset’ while P concentrations in excess of this resulted in decreased stem length, increased leaf [P] up to 0.25% (w/w) and, between 1 mM and 5 mM P supply, typical P toxicity symptoms were observed. High P supply (5 mM P) resulted in increased leaf [P] in most leaf tissues including the epidermis, where calculations from an equilibrium speciation model indicated that there was 30% more dissolved PO₄³⁻ in the epidermis compared to leaves at low P supply (0 mM added P on soil with 34 mg P kg⁻¹). Concomitantly, bundle sheath and epidermal [Ca] were reduced and 10% more Ca was predicted to be adsorbed and precipitated as hydrapatite at high P supply. High P supply resulted in increased leaf [Cl] and [Mn] in all tissues studied; decreased total leaf [Fe], bundle sheath, xylem, phloem and epidermal [Fe] and decreased total leaf [Zn] and xylem and phloem [Zn]. The observed symptoms of P toxicity in Leucadendron ‘Safari Sunset’ (necrosis in some plants, chlorosis and leaf rosetting) co-occurred with (1) excess PO₄³⁻, which may bind Ca in the epidermis (leading eventually to necrosis); (2) reduced [Fe] and increased [Mn] (leading to chlorosis) and (3) reduced total and vascular [Zn] (leading to leaf rosetting).  相似文献   

Measures for interoperability of phenotypic data: minimum information requirements and formatting     

Hanna??wiek-Kupczyńska  Thomas?Altmann  Daniel?Arend  Elizabeth?Arnaud  Dijun?Chen  Guillaume?Cornut  Fabio?Fiorani  Wojciech?Frohmberg  Astrid?Junker  Christian?Klukas  Matthias?Lange  Cezary?Mazurek  Anahita?Nafissi  Pascal?Neveu  Jan?van?Oeveren  Cyril?Pommier  Hendrik?Poorter  Philippe?Rocca-Serra  Susanna-Assunta?Sansone  Uwe?Scholz  Marco?van?Schriek  ümit?Seren  Bj?rn?Usadel  Stephan?Weise  Paul?Kersey  Pawe??KrajewskiEmail author 《Plant methods》2016,12(1):44

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Yersinia ruckeri—A threat not only to rainbow trout     

Joanna Pajdak‐Czaus  Aleksandra Platt‐Samoraj  Wojciech Szweda  Andrzej Krzysztof Siwicki  Elbieta Terech‐Majewska 《Aquaculture Research》2019,50(11):3083-3096

Yersinia ruckeri (Y. ruckeri) can cause mortalities that are contributing to substantial economic losses in the rainbow trout (Oncorhynchus mykiss) aquaculture sector. Because of its most characteristic clinical signs, the disease in rainbow trout caused by this pathogen is called enteric redmouth disease. Although it is considered to affect mainly salmonids, there are reports in the available literature of isolating this bacterium from other fish species, both clinically healthy and diseased. The aim of this study was to analyse the available data concerning yersiniosis in non‐salmonid fish. The analysed data indicate that Y. ruckeri is a threat not only to rainbow trout. Some of the affected species have high commercial importance and mortalities may contribute to high economic losses. The disease symptoms may not be specific and can be different from those characteristic for enteric redmouth in trout, which may lead to misdiagnosis. Collected information indicates that infection with Y. ruckeri should be taken into account in the diagnostic procedures not only in salmonids.  相似文献   

The importance of the riparian ecotone and river hydraulics for sustainable basin-scale restoration scenarios     

Maciej Zalewski  Barbara Bis  Ma&#x;zgorzata &#x;api&#x;ska  Piotr Frankiewicz  Wojciech Puchalski 《水产资源保护:海洋与淡水生态系统》1998,8(2):287-307

1. The effect of riparian ecotone functional complexity and stream hydraulics on an upland river ecosystem has been analysed. 2. The amount of nutrients retained by bottom sediment was lowest on a sandy substrate (range: 26–104 mg m⁻² P-PO₄) and highest in wetland bays (range: 558–5368 mg m⁻² P-PO₄). A stream bed covered by Berula erecta had about three times higher retentive nutrient capacity ( x̄ = 584 mg m⁻² day⁻¹) than did a sandy substrate( x̄ = 205 mg m⁻² day⁻¹). 3. The amount of allochthonous organic matter (CPOM) deposited on the stream bed decreased with current velocity. The trophic potential of CPOM, measured as total protein, was significantly correlated with the amount of deposited CPOM (r = 0.863; p<0.00001) and depended on stream order. 4. Both invertebrate and fish biomass in the upland river were significantly correlated with calcium/bicarbonate (benthos: r = 0.858; p<0.006; fish: r = 0.918; p<0.001). 5. Fish biomass, diversity and species richness were highest in pools, lower in riffles and lowest in the run/transition zone. 6. Macroinvertebrate biomass was highest at an intermediate riparian ecotone complexity with an adequate supply of organic matter and incident light. Fish biomass followed the same trend, being lowest in heavily shaded areas and in open channels without riparian vegetation (range: 1–4.5 g m⁻²), but highest in ecotones of intermediate complexity (range: 1.6–92.8 g m⁻²). The ‘cascading effect’ of invertebrate density depletion, which was inversely related to fish biomass, was observed seasonally. 7. The above results indicate that riparian ecotone structure and the heterogeneity of the stream channel may regulate biodiversity, productivity and nutrient retention in the fluvial corridor. These quantitative data help to create alternative scenarios for sustainable river basin management. © 1998 John Wiley & Sons, Ltd.  相似文献   

How the deadwood of different tree species in various stages of decomposition affected nutrient dynamics?     

Jarosław Lasota  Ewa Błońska  Wojciech Piaszczyk  Małgorzata Wiecheć 《Journal of Soils and Sediments》2018,18(8):2759-2769

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Application of reactive UV-absorbers for increasing protective properties of cellulose fabrics during standard laundering process     

Wojciech Czajkowski  Justyna Mamnicka  Wies?awa Lota  Joanna Lewartowska 《Fibers and Polymers》2012,13(7):948-953

A number of water-soluble colourless fibre-reactive UV-absorbers derivatives of symmetrical triazine were used as additives during commercial laundering process. UV-protection factor (UPF) of such treated cotton tricot samples was measured. Changes in protection properties of modified textiles after repeated standard laundering process were determined. Carried-out experiments gave evidence of covalent bond formation between applied absorbers and cellulose fibre during standard washing process at 40 °C or 60 °C. Textiles modified by this method have provided UV-protective properties for prolonged time.  相似文献   

Changes in ide Leuciscus idus (L.) females’ reproductive parameters after stimulation with carp pituitary homogenate (CPH) and Ovopel: the effect of domestication?     

Mirosław Cieśla  Robert Jończyk  Dariusz Gozdowski  Jerzy Śliwiński  Jacek Rechulicz  Wojciech Andrzejewski 《Aquaculture International》2014,22(1):77-88

Three groups (wild—WS, semi-pond—SPS, and pond-cultured—PS) of ide Leuciscus idus (L.) were examined. Each group consisted of 30 females and 10 males, aged 5–8 years. All groups were stimulated with two agents: carp pituitary homogenate (CPH) and a synthetic hormonal preparation Ovopel. The amount of ovulating females decreased in conjunction with females’ domestication level, mainly because of very low efficacy of CPH for pond-reared ide stimulation. The percentage of ovulating females stimulated with Ovopel (97.0 %) was significantly higher comparing to CPH (63.0 %). No significant differences were found in latency time between the groups but spawning synchronization increased in conjunction with ide domestication. The positive correlation between domestication level and latency time, i.e., the higher the domestication level, the higher the latency time, was stated. No significant differences were found in PGSI as well as in total volume of obtained eggs, but groups differed significantly in the number of dry eggs and in number of swollen egg. Significant negative correlation between domestication level and number of swollen eggs, i.e., the higher the domestication level, the lower the number of eggs, was detected. The survival rate at the eyed stage was the highest in WS group (60.4 %) and PS group (57.7 %), and was significantly higher than in SPS group (51.8 %). Eggs obtained after CPH stimulation had higher survival rate at the eyed-egg stage (60.3 %) than eggs obtained from the fish stimulated with Ovopel (53.0 %). The data suggest that some form of domestication appeared in ide cultivated for several generations in carp pond.  相似文献   

Influence of redox processes on clay mineral transformation in Retisols in the Carpathian Foothills in Poland. Is a ferrolysis process present?     

Wojciech Szymański  Michał Skiba  Artur Błachowski 《Journal of Soils and Sediments》2017,17(2):453-470

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