蛇床子素对植物病原菌抑制效果的测定   总被引：3，自引：0，他引：3  

黄昌华杨天武  肖凤平林开舂 《华中农业大学学报》2005,24(3):258-260

采用含毒介质法和牛津杯法测定了蛇床子素对8种植物病原真菌和7种病原细菌的抑制效果。结果表明：当浓度在400～800μg／mL时,蛇床子素对8种病原真菌都有不同程度的抑制作用,其中对水稻纹枯病菌和小麦赤霉病菌的抑制作用最佳,抑制率在95％～100％,其EC50分别为37．71μg／mL和47．06μg／mL,但对蕃茄叶霉病菌和玉米小斑病菌抑制作用较差;蛇床子素对7种病原细菌抑制作用最强的是水稻细菌性褐条病和甜豌豆带化病菌,浓度在1000μg／mL时,其抑菌圈直径分别为37mm和36mm,但对兰花褐腐病菌抑制力很低,只有8mm。  相似文献   

Erratum to: Safe application of reclaimed water reuse for agriculture in Korea     

Taeil Jang  Sae-Bom Lee  Choung-Hyun Sung  Han-Pil Rhee  Seung-Woo Park 《Paddy and Water Environment》2010,8(4):393-393

  相似文献   

Corrigendum to “Protein solubility is related to myosin isoforms,muscle fiber types,meat quality traits,and postmortem protein changes in porcine longissimus dorsi muscle” [Livestock Science. 127 (2010) 183–191]     

Y.M. Choi  S.H. Lee  J.H. Choe  M.S. Rhee  S.K. Lee  S.T. Joo  B.C. Kim 《Livestock Science》2010,131(1):148

  相似文献   

Nutritional myopathy in goats   总被引：1，自引：0，他引：1  

AD. ROSS  CO. GEE†  ARB. JACKSON‡  E. HALL  PL. GREENTREE 《Australian veterinary journal》1989,66(11):361-363

A nutritional myopathy in unweaned fibre goats aged 2 to 4 mths is described in 3 flocks from the tablelands of New South Wales. Clinically affected animals were illthrifty and in circulatory failure prior to being found dead. At necropsy, there was pronounced ascites, pulmonary congestion and marked mottling of the liver. Chalky white streaks and patches were obvious in the myocardium, particularly in the right ventricular wall. Skeletal muscles varied from grossly normal to generally pale. Histologically, the myocardium exhibited areas of severe acute myonecrosis with mineralisation and adjoining areas of phagocytosis and fibrosis. In 2 of 3 flocks, some skeletal muscles showed a mild subacute myopathy. Marked hepatic congestion extended to periacinar haemorrhage and necrosis in some areas. Dietary imbalances of selenium, vitamin E and polyunsatured fatty acids were probable factors in the pathogenesis of the condition.  相似文献   

Reverse effects of tetraarsenic oxide on the angiogenesis induced by nerve growth factor in the rat cornea     

Yoo MH  Kim JT  Rhee CH  Park MJ  Bae IJ  Yi NY  Jeong MB  Jeong SM  Nam TC  Seo KM 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(9):1091-1095

To compare the antiangiogenic effects of tetraarsenic oxide (As4O6) with those of diarsenic oxide (As2O3) in the rat cornea, rat cornea micropocket assay was conducted to induce angiogenesis by implantation of the pellet contained 1.0 ng of nerve growth factor (NGF). Ten of thirty eyes of Sprague-Dawley rats were randomly assigned to one of three groups, namely, control group (no medication), As2O3 group (50 mg/kg As2O3, PO, s.i.d.), and As4O6 group (50 mg/kg As4O6, PO, s.i.d.). After implantation, the number of new vessels, vessel length and clock hour of neovascularization were examined under the microscope from day 3 to day 7. The area of neovascularization was calculated using a mathematical formula. Although new vessels in control and As2O3 groups were first noticed at day 3, whereas those of As4O6 group were first observed on day 5. The number, length, clock hour of neovascularization and areas of the vessels in As4O6 group showed more significant inhibition than those of control and As2O3 groups from day 5 (P<0.05). However, there were no differences in all parameters between control group and As2O3 group during the entire study period. These results showed that As4O6 had antiangiogenic effects on the new vessels induced by NGF in the rat cornea.  相似文献   

Variation in palatability and biochemical traits within and among eleven beef muscles   总被引：12，自引：0，他引：12  

Rhee MS  Wheeler TL  Shackelford SD  Koohmaraie M 《Journal of animal science》2004,82(2):534-550

The objective of this study was to determine the extent of variation in, and relationships among, biochemical and palatability traits within and among 11 major beef muscles. Longissimus thoracis et lumborum (LD), psoas major (PM), gluteus medius (GM), semimembranosus (SM), adductor (AD), biceps femoris (BF), semitendinosus (ST), rectus femoris (RF), triceps brachii (TB), infraspinatus (IS), and supraspinatus (SS) from one side of 31 Charolais x MARC III steer carcasses were vacuum-packaged, stored at 2 degrees C until 14 d postmortem, and then frozen at -30 degrees C. The 2.54-cm-thick steaks were obtained from two or three locations within muscles in order to assess biochemical traits and Warner-Bratzler shear force, and from near the center for sensory trait evaluation. The PM was most tender and was followed by IS in both shear force and tenderness rating (P < 0.05). The other muscles were not ranked the same by shear force and tenderness rating. The BF had the lowest (P < 0.05) tenderness rating. The PM, GM, and LD had lower (P < 0.05) collagen concentration (2.7 to 4.5 mg/g muscle) than muscles from the chuck and round (5.9 to 9.0 mg/g), except for the AD (4.9 mg/g). Desmin proteolysis was highest (P < 0.05) for BF and LD (60.7 and 60.1% degraded), and was lowest (P < 0.05) for PM (20.2%). The PM, TB, IS, RF, and ST had relatively long sarcomere lengths (> 2.1 microm), whereas the GM had the shortest (P < 0.05) sarcomere length (1.7 microm). Cooking loss was lowest (P < 0.05) for BF (18.7%) and was followed by LD and IS (20.7%); it was highest (P < 0.05) for ST (27.4%). Across all muscles, tenderness rating was highly correlated (r > 0.60) with shear force, connective tissue rating, sarcomere length, and collagen content. Within a muscle, correlations among all traits were generally highest in LD and lowest in AD. Within muscle, location effects were detected (P < 0.05) for shear force (PM, ST, BF, SM, and RF), sarcomere length (PM, ST, BF, LD, SS, IS, SM, and RF), collagen concentration (PM, BF, SS, IS, SM. AD, TB, and RF), desmin degradation (PM, GM, BF, SM, AD, and, RF), and cooking loss (all muscles except SS and AD). There is a large amount of variation within and among muscles for tenderness traits and tenderness-related biochemical traits. These results increase our understanding of the sources of variation in tenderness in different muscles and provide a basis for the development of muscle-specific strategies for improving the quality and value of muscles.  相似文献   

Further analysis of bile crystals from sheep grazing Panicum schinzii (sweet grass)     

CO MILES  SC MUNDAY  PT HOLLAND  MJ LANCASTER  AL WILKINS 《Australian veterinary journal》1992,69(2):34-34

  相似文献   

MIAME/Plant – adding value to plant microarrray experiments     

Philip Zimmermann  Beatrice Schildknecht  David Craigon  Margarita Garcia-Hernandez  Wilhelm Gruissem  Sean May  Gaurab Mukherjee  Helen Parkinson  Seung Rhee  Ulrich Wagner  Lars Hennig 《Plant methods》2006,2(1):1-3

  相似文献   

Hepatic steroid inactivating enzymes,hepatic portal blood flow and corpus luteum blood perfusion in cattle          下载免费PDF全文

CG Hart  BE Voelz  KE Brockus  CO Lemley 《Reproduction in domestic animals》2018,53(3):751-758

Production from the corpus luteum (CL) and/or hepatic steroid inactivation impacts peripheral concentrations of P4, which can alter reproductive performance. Our primary objective was to examine hepatic steroid inactivating enzymes, portal blood flow, and luteal blood perfusion at 10 days post‐insemination in pregnant versus non‐pregnant beef and dairy cows. Twenty early lactation Holstein cows and 20 lactating commercial beef cows were utilized for this study. At day 10 post‐insemination, hepatic portal blood flow and CL blood perfusion were measured via Doppler ultrasonography. Liver biopsies were collected and frozen for later determination of cytochrome P450 1A (CYP1A), 2C (CYP2C), 3A (CYP3A), uridine diphosphate‐glucuronosyltransferase (UGT) and aldo‐keto reductase 1C (AKR1C) activities. Pregnancy was determined at day 30 post‐insemination and treatment groups were retrospectively assigned as pregnant or non‐pregnant. Data were analyzed using the mixed procedure of SAS. Steroid metabolizing enzyme activity was not different (p > .10) between pregnant versus non‐pregnant beef or dairy cows. Hepatic portal blood flow tended (p < .10) to be increased in pregnant versus non‐pregnant dairy cows. Luteal blood perfusion was increased (p < .05) in pregnant versus non‐pregnant dairy cows. Pregnant dairy cows appear to have an increased rate of hepatic clearance of P4 in combination with increased synthesis from the CL. This could account for the lack of difference in peripheral P4 concentrations between pregnant and non‐pregnant dairy cows. This study highlights the relevance of further investigation into steroid secretion and inactivation and their impact on the maintenance of pregnancy in cattle.  相似文献   

Molecular characteristics of granulosa and cumulus cells and oocyte competence in Nelore cows with low and high numbers of antral follicles          下载免费PDF全文

CO Rosa  LSR Marinho  PRA da Rosa  MP De Cesaro  PA Lunardelli  KC Silva‐Santos  AC Basso  V Bordignon  MM Seneda 《Reproduction in domestic animals》2018,53(4):921-929

  相似文献