QTLs for the vascular bundle system of the uppermost internode using a doubled haploid population of two elite Chinese wheat cultivars     

Y. Sang  Z. Y. Deng  L. Zhao  K. P. Zhang  J. C. Tian  B. X. Ye 《Plant Breeding》2010,129(6):605-610

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Actinobacillus equuli as a primary pathogen in breeding sows and piglets     

Thompson AB  Postey RC  Snider T  Pasma T 《The Canadian veterinary journal. La revue veterinaire canadienne》2010,51(11):1223-1225

The death of over 300 sows in 2 months on a 3000 sow farrow-to-isowean operation in Manitoba was attributed to infection with Actinobacillus equuli. This pathogen commonly infects foals, and is rarely reported in swine. Our report is the second recently published case of this pathogen in North American swine.  相似文献   

西藏牦牛遗传资源保护与利用     

信金伟  张成福  钟金城  张强  姬秋梅  洛桑  阚向东  达娃央拉  顿珠平措  巴贵  索朗达 《中国牛业科学》2010,36(6):59-61

牦牛是我国丰富多样的畜种资源中重要的畜种之一,在遗传上是一个极为宝贵的基因库。本文阐述了西藏牦牛遗传资源的保种方法和利用途径,有助于西藏畜牧业的可持续发展。  相似文献   

白朗县白雪试验站春油菜品比试验   总被引：1，自引：0，他引：1  

尹中江  刘启勇  桑布  魏迎春  冬梅 《西藏农业科技》2010,32(2):10-14

参试材料川油13号生育期、分枝性状等其它性状上综合,均优于对照,是试验最优品种(系)。年河主要农区,适合选育生育期为110～130天的甘蓝型春油菜品种。建议油菜育种,能够提供生育期较为早熟的甘蓝型品种,提供给生产上使用。  相似文献   

64-Channel multi-detector row CT angiographic evaluation of the micropigs for potential living donor lung transplantation     

Woong Yoon  Jung Min Ryu  Min Young Lee  Yong Ju Moon  Sang Hun Lee  Jae Hong Park  Seung Pil Yun  Min Woo Jang  Sung Su Park  Ho Jae Han 《Journal of veterinary science (Suw?n-si, Korea)》2010,11(3):185-189

Micropigs are the most likely source animals for xenotransplantation. However, an appropriate method for evaluating the lung of micropigs had not been established. Therefore, this study was performed to evaluate the feasibility of 64-channel multi-detector row computed tomography (MDCT) to measure the diameter of the pulmonary arteries and the lung volume in micropigs. The mean diameters of the trachea, and left and right bronchi were 1.6 ± 0.17, 1.18 ± 0.14, and 1.1 ± 0.11 cm, respectively. The mean diameters of the main, right, and left pulmonary arteries were 1.38 ± 0.09, 1.07 ± 0.26, and 0.98 ± 0.13 cm and the diameters of right, left, and common inferior pulmonary veins were 0.97 ± 0.20, 0.76 ± 0.20, and 1.99 ± 0.26 cm, respectively. The mean lung volume was 820.3 ± 77.11 mL. The data presented in this study suggest that the MDCT may be a noninvasive, rapid, and accurate investigational method for pulmonary anatomy in living lung donors.  相似文献   

2007年—2011年中国引文分析研究论文的计量分析     

郭桑  贾建瑞 《农业图书情报学刊》2013,25(6):57-60

对CNKI中国学术期刊网络出版总库所收录的2007年—2011年中国引文分析研究领域的918篇论文进行了文献计量分析,利用布拉德福定律、普赖斯指数、齐普夫定律、h指数等文献计量学相关定律进行分析,旨在了解今年中国引文分析研究的现状和发展趋势,以期为后续研究提供参考。  相似文献   

Methanol fixation of plant tissue for Scanning Electron Microscopy improves preservation of tissue morphology and dimensions     

Mark?J?TalbotEmail author  Rosemary?G?White 《Plant methods》2013,9(1):36

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Metabolic Profiling of Glucosinolates, Anthocyanins, Carotenoids, and Other Secondary Metabolites in Kohlrabi (Brassica oleracea var. gongylodes)     

Park WT  Kim JK  Park S  Lee SW  Li X  Kim YB  Uddin MR  Park NI  Kim SJ  Park SU 《Journal of agricultural and food chemistry》2012,60(33):8111-8116

We profiled and quantified glucosinolates, anthocyanins, carotenoids, and other secondary metabolites in the skin and flesh of pale green and purple kohlrabis. Analysis of these distinct kohlrabis revealed the presence of 8 glucosinolates, 12 anthocyanins, 2 carotenoids, and 7 phenylpropanoids. Glucosinolate contents varied among the different parts and types of kohlrabi. Glucoerucin contents were 4-fold higher in the flesh of purple kohlrabi than those in the skin. Among the 12 anthocyanins, cyanidin 3-(feruloyl)(sinapoyl) diglucoside-5-glucoside levels were the highest. Carotenoid levels were much higher in the skins than the flesh of both types of kohlrabi. The levels of most phenylpropanoids were higher in purple kohlrabi than in pale green ones. trans-Cinnamic acid content was 12.7-fold higher in the flesh of purple kohlrabi than that in the pale green ones. Thus, the amounts of glucosinolates, anthocyanins, carotenoids, and phenylpropanoids varied widely, and the variations in these compounds between the two types of kohlrabi were significant.  相似文献   

Synthesis and Inhibitory Activities against Colon Cancer Cell Growth and Proteasome of Alkylresorcinols     

Y Zhu  DN Soroka  S Sang 《Journal of agricultural and food chemistry》2012,60(35):8624-8631

We have identified alkylresorcinols (ARs) as the major active components in wheat bran against human colon cancer cell growth (HCT-116 and HT-29) using a bioassay-guided approach. To further study the structure-activity relationships, 15 ARs and their intermediates (1-15) were synthesized expediently by the modified Wittig reaction in aqueous media, and six 5-alkylpyrogallols and their analogues (16-21) were prepared by the general Grignard reaction. The synthetic AR analogues were evaluated for activities against the growth of human colon cancer cells HCT-116 and HT-29 and the chymotrypsin-like activity of the human 20S proteasome. Our results found that (1) AR C13:0 and C15:0 (13 and 14) had the greatest inhibitory effects in human colon cancer cells HCT-116 and HT-29, while decreasing or increasing the side chain lengths diminished the activities; (2) two free meta-hydroxyl groups at C-1 and C-3 on the aromatic ring of the AR analogues greatly contributed to their antitumor activity; (3) the introduction of a third hydroxyl group at C-2 (20 and 21) into the aromatic ring of the AR analogues yielded no significant enhancement in activity against HCT-116 cells and decimated the effects against HT-29 cells, but dramatically increased the activity against the chymotrypsin-like activity of the human 20S proteasome; and (4) AR C11:0 (12) was found to have the greatest effect in a series of AR C9:0-C17:0 against the chymotrypsin-like activity of the human 20S proteasome.  相似文献   

Different response of silicate fertilizer having electron acceptors on methane emission in rice paddy soil under green manuring     

Chang?Hoon?Lee  Sang?Yoon?Kim  Maria?B.?Villamil  Prabhat?Pramanik  Chang?Ok?Hong  Pil?Joo?KimEmail author 《Biology and Fertility of Soils》2012,48(4):435-442

Cultivation of green manure plants during the fallow season in rice paddy soil has been strongly recommended to improve soil properties. However, green manuring may impact greenhouse gas emission, methane (hereafter, CH₄) in particular, under the flooded rice cultivation and thus, application of chemical amendments being electron acceptors can be an effective mitigation strategy to reduce CH₄ emissions in irrigated rice (Oryza sativa L.) field amended with green manure. To investigate the effect of iron (Fe) slag silicate fertilizer (hereafter, silicate fertilizer), which was effective in reducing CH₄ emission and increasing rice productivity, in green manure-amended paddy soil, the aboveground biomass of Chinese milk vetch (hereafter, vetch) was added at rates of 0, 10, 20, and 40 Mg (fresh weight) ha⁻¹ before the application of silicate fertilizer, which was added at rates of 0 and 2.3 Mg ha⁻¹. Silicate fertilization reduced the seasonal CH₄ flux by ca. 14.5% and increased rice yield by ca. 15.7% in the control (no vetch application) treatment. However, CH₄ production was increased by silicate fertilization in vetch-treated soil particularly at the initial rice growing stage, which was probably due to the enhanced decomposition of added organic matters by the silicate liming effect. In conclusion, silicate fertilization is not effective in reducing CH₄ production in green manure-amended rice paddy soils and its use should be properly controlled.  相似文献