Pre‐ and Post‐Transfusion Alloimmunization in Dogs Characterized by 2 Antiglobulin‐Enhanced Cross‐match Tests          下载免费PDF全文

I. Goy‐Thollot  U. Giger  C. Boisvineau  R. Perrin  M. Guidetti  B. Chaprier  A. Barthélemy  C. Pouzot‐Nevoret  B. Canard 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2017,31(5):1420-1429

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Damage by Neonectria neomacrospora and Adelges piceae in provenance trials of subalpine fir (Abies lasiocarpa) in Denmark          下载免费PDF全文

B. Skulason  O. K. Hansen  I. M. Thomsen  V. Talgø  U. B. Nielsen 《Forest Pathology》2017,47(3)

Field trials of Abies lasiocarpa were undertaken with the aim of assessing the potential for Christmas tree production in Denmark. Twenty‐six provenances originating from Alaska to New Mexico were tested. Damage by the insect Adelges piceae and the fungus Neonectria neomacrospora was recorded for the first time 8 and 12 years after the initial planting. Damage from N. neomacrospora increased rapidly in the period 12–15 years after planting. Trees from the northern provenances and humid climates exhibited less damage than those from southern ones. Previous attack by A. piceae had a minor effect on N. neomacrospora infection. Greenhouse tests showed that detached shoots from healthy Abies lasiocarpa can be used to rank provenances for resistance to N. neomacrospora, but results varied according to host subspecies.  相似文献   

盐碱地土壤：氧化亚氮和二氧化碳排放的潜在来源？   总被引：2，自引：1，他引：1  

U. GHOSH  R. THAPA  T. DESUTTER  HE Yang-Bo  A. CHATTERJEE 《土壤圈》2017,27(1):65-75

Increasing salt-affected agricultural land due to low precipitation,high surface evaporation,irrigation with saline water,and poor cultural practices has triggered the interest to understand the influence of salt on nitrous oxide(N_2O) and carbon dioxide(CO_2)emissions from soil.Three soils with varying electrical conductivity of saturated paste extract(EC_e)(0.44-7.20 dS m~(-1)) and sodium adsorption ratio of saturated paste extract(SARe)(1.0-27.7),two saline-sodic soils(S2 and S3) and a non-saline,non-sodic soil(S1),were incubated at moisture levels of 40%,60%,and 80%water-filled pore space(WFPS) for 30 d,with or without nitrogen(N)fertilizer addition(urea at 525 μg g~(-1) soil).Evolving CO_2 and N2 O were estimated by analyzing the collected gas samples during the incubation period.Across all moisture and N levels,the cumulative N_2O emissions increased significantly by 39.8%and 42.4%in S2 and S3,respectively,compared to S1.The cumulative CO_2 emission from the three soils did not differ significantly as a result of the complex interactions of salinity and sodicity.Moisture had no significant effect on N_2O emissions,but cumulative CO_2 emissions increased significantly with an increase in moisture.Addition of N significantly increased cumulative N_2O and CO_2 emissions.These showed that saline-sodic soils can be a significant contributor of N_2O to the environment compared to non-saline,non-sodic soils.The application of N fertilizer,irrigation,and precipitation may potentially increase greenhouse gas(N2O and CO_2) releases from saline-sodic soils.  相似文献   

Effectiveness of Zinc and Gypsum Application Against Cadmium Toxicity and Accumulation in Wheat (Triticum aestivum L.)     

M. S. Abbas  M. Akmal  Saif Ullah  M. U. Hassan  S. Farooq 《Communications in Soil Science and Plant Analysis》2017,48(14):1659-1668

Cadmium (Cd) is a nonessential and toxic element because it inhibits the growth and development of plants and is dangerous for end consumer. It enters in the human food chain through food crops. Application of plant nutrients such as zinc (Zn) and gypsum is a viable and cheap strategy to minimize its accumulation in edible plant portions. Therefore, this investigation was conducted to determine the effectiveness of Zn and gypsum against Cd accumulation in wheat. The results showed that Cd toxicity considerably decreased the plant growth, physiological activities, and yield attributes and increased the Cd accumulation in root, shoot, and grain, while application of Zn and gypsum remarkably increased the growth and yield and decreased the Cd accumulation in plant parts in Cd-contaminated soil. The results also depicted that application of Zn showed better results as compared to gypsum. In conclusion, we can say that application of Zn and gypsum remarkably ameliorated the Cd toxicity and decreased its accumulation in wheat, grown in Cd-contaminated soil.  相似文献   

Seroprevalence of <Emphasis Type="Italic">Brucella</Emphasis> antibodies in camels in Katsina State,Nigeria     

U.S Salisu  C.A Kudi  J.O.O. Bale  M Babashani  B.Y Kaltungo  S.N.A Saidu  A Asambe  A.Y Baba 《Tropical animal health and production》2017,49(5):1041-1046

A cross-sectional study was carried out to determine the status of Brucella infection in one-humped (Dromedary) camels in the North and Central senatorial districts of Katsina State, Nigeria. Nine hundred and eighty serum samples from live and slaughtered camels were tested. Modified Rose Bengal plate test (RBPT) and serum agglutination test (SAT) with ethylenediaminetetraacetic acid, (EDTA) were used as screening and standard tests, respectively. The prevalence of Brucella antibodies were 110 (11.2%) and 103 (10.5%) for RBPT and SAT, respectively. Of the 472 and 508 serum samples tested from the herds and abattoirs, respectively, 63 (13.3%) and 47 (9.3%) were positive by RBPT while 62 (13.1%) and 41 (8.1%) were positive by SAT, respectively. Based on the results, it was concluded that Brucella antibodies were present in camels in the study area. Poor management practices and mixing of camels with other species of livestock as well as unrestricted movement of camels were proposed to be the reasons for the prevalence of the disease in the study area. In view of the public health importance of the disease, it is recommended that there is the need to develop a strategic plan to decrease spread of brucellosis in the study area.  相似文献   

A novel approach to brachycephalic syndrome. 3. Isolated laser‐assisted turbinectomy of caudal aberrant turbinates (CAT LATE)          下载免费PDF全文

Riccarda Schuenemann  Sabine Pohl  Gerhard U. Oechtering 《Veterinary surgery : VS》2017,46(1):32-38

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Morphological Variation of Donax spp. from Five Beaches in Prachaupkhirikhan,Thailand     

S.  Manatrinon  O.  U.  Thonglor A. Boonyapakdee 《农业科学与技术》2011,(8):1109-1111

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Inheritance and chromosome location of leaf rust resistance in durum wheat cultivar Wollaroi     

B. Singh  U. K. Bansal  K. L. Forrest  M. J. Hayden  R. A. Hare  H. S. Bariana 《Euphytica》2010,175(3):351-355

The Australian durum cultivar Wollaroi produced low leaf rust responses in the field since its release in 1993. A recombinant inbred line population was developed from a cross of Wollaroi with a susceptible landrace Bansi. Monogenic inheritance of low seedling leaf rust response against the Puccinia triticina pathotype 104-1,2,3,6,(7),(11),13 was observed. This gene was temporarily designated as LrWo. A DArT based map of Wollaroi/Bansi was used to determine the genomic location of LrWo and it was mapped in chromosome 5BS. Following enrichment of the DArT map of chromosome 5BS with SSR markers, LrWo was flanked by gwm234 (7.2 cM) and wPt-1420 (20.3 cM) distally and proximally, respectively. A previously characterised gene Lr52 was also located on the chromosome arm 5BS, proximal to gwm234. Based on genetic association with the marker gwm234 at a similar distance, we concluded that LrWo could be either Lr52 or is another allele of this locus. Based on infection type comparison the latter argument seems more plausible.  相似文献   

Assessment of genetic divergence in salt tolerance of soybean (<Emphasis Type="Italic">Glycine max</Emphasis> L.) genotypes     

M. A. Mannan  M. A. Karim  Q. A. Khaliq  M. M. Haque  M. A. K. Mian  J. U. Ahmed 《Journal of Crop Science and Biotechnology》2010,13(1):33-37

A large number of soybean (Glycine max L.) genotypes of diverse growth habit and adaptive characters were used in the experiment. Soil salinity-induced changes in nine morpho-physiological characters of 30-day-old seedlings of 170 soybean genotypes were compared in the study. The first and second principal components (PC) of principal component analysis (PCA) results accounted for 97 and 2.5%, respectively, of the total variations of soybean genotypes. The variation for the first PC was composed mainly of relative total dry weight (DW), relative shoot dry weight, as well as petiole dry weight. There were four clusters distinguished in the cluster analysis. The genotypes in cluster IV performed better in respect to relative total dry weight and relative shoot dry weight and hence having salt tolerance. The genotypes clusters III performed very poorly and those of clusters II and I were moderate to poor. D2 analysis indicated that the clusters differed significantly from each other. Discriminant function analysis (DFA) again asserts strongly that more than 92% of the genotypes were correctly assigned to clusters. Both PCA and DFA confirmed that the relative total DW followed by shoot and petiole DW were the major discriminatory variables, and the root DW were the secondary important variables to distinguish genotypes into groups. In this study, multivariate analyses were used in identifying the soybean genotypes of desirable traits for salt tolerance.  相似文献   

Winter nitrate uptake by the temperate deciduous tree <Emphasis Type="Italic">Quercus serrata</Emphasis>     

Miki U. Ueda  Eri Mizumachi  Naoko Tokuchi 《Journal of Forest Research》2010,15(6):411-414

Winter nitrogen use in deciduous species is largely uncharacterized. We investigated nitrate uptake in the fine roots of a deciduous oak (Quercus serrata Thunb. ex. Murray). We conducted a ¹⁵N-labeling experiment using saplings of Q. serrata in the winter. During three weeks of labeled nitrate application, the concentration of ¹⁵N in the fine roots increased significantly. The amount of nitrogen absorbed, as nitrate, was 1.16 ± 1.02 mg N g DW⁻¹, equivalent to 7.6 ± 5.8% of the total nitrogen content. Our results indicate that Q. serrata saplings have significant potential for nitrate uptake in the fine roots in midwinter (i.e., in the absence of leaves). Although a significant amount of nitrogen applied as nitrate was accumulated, nitrate concentration in the fine roots remained low during the labeling period. Furthermore, significant nitrate reductase activity was detected. These data suggest that Q. serrata saplings can assimilate nitrate in the fine roots in midwinter.  相似文献