Correlations of oil and protein with isoflavone concentration in soybean [Glycine max (L.) Merr.

Twelve isoflavones were detected by high-performance liquid chromatography in seeds of 17 soybean [Glycine max (L.) Merrill] cultivars grown at three locations. 6' '-O-Malonyldaidzin and 6' '-O-malonylgenistin together constituted 71-81% of total isoflavones, which ranged in concentration from 2038 to 9514 microg/g and averaged 5644 microg/g across locations and cultivars. The total as well as several individual isoflavones had a moderate negative correlation with oil across locations and cultivars. Six cultivars had a moderate or strong negative correlation of total isoflavones with oil. Five cultivars had a moderate or strong positive correlation of total isoflavones with protein. These results suggest that judicious selection of germplasm for soybean breeding may facilitate development of soybean lines with desirable isoflavone concentrations.     

Markers of feline leukaemia virus infection or exposure in cats from a region of low seroprevalence

Molecular techniques have demonstrated that cats may harbour feline leukaemia virus (FeLV) provirus in the absence of antigenaemia. Using quantitative real-time polymerase chain reaction (qPCR), p27 enzyme-linked immunosorbent assay (ELISA), anti-feline oncornavirus-associated cell-membrane-antigen (FOCMA) antibody testing and virus isolation (VI) we investigated three groups of cats. Among cats with cytopenias or lymphoma, 2/75 were transiently positive for provirus and anti-FOCMA antibodies were the only evidence of exposure in another. In 169 young, healthy cats, all tests were negative. In contrast, 3/4 cats from a closed household where FeLV was confirmed by isolation, had evidence of infection. Our results support a role for factors other than FeLV in the pathogenesis of cytopenias and lymphoma. There was no evidence of exposure in young cats. In regions of low prevalence, where the positive predictive value of antigen testing is low, qPCR may assist with diagnosis.     

我国杨梅种质资源研究进展

概述了我国杨梅属植物种、变种的分类 ,杨梅栽培种的资源整理、分布、分类 ,以及生物技术在杨梅分类遗传研究中的应用等三方面的研究现状 ,并提出开发利用意见     

Feline pyothorax: a retrospective study of 27 cases in Australia

Pyothorax was diagnosed in 27 cats between 1983 and 2002. In 21 (78%) of the cases, pleural fluid culture and/or cytology was consistent with a mixed anaerobic bacterial infection of oropharyngeal origin. In six cases (22%), infection was caused by unusual pathogens or pathogens of non-oropharyngeal origin, including a Mycoplasma species, Cryptococcus gattii, Escherichia coli, Salmonella typhimurium and Staphylococcus aureus. The overall mortality rate was 22%. Treatment was successful in 18 of 19 cases (95%) where closed thoracostomy tubes were inserted. One case resolved only after thoracotomy. Actinomyces species were isolated in three cases and in contrast to dogs where thoracotomy is recommended, they were resolved with tube thoracostomy. Mechanical complications occurred in 58% of the cats with indwelling chest tubes. Probable mechanisms of pleural space infection were identified in 18 cats (67%) including haematogenous infection (n=1), direct inoculation of bacteria into the pleural space (n=1), intrathoracic oesophageal rupture (n=1) and parapneumonic extension of infection (n=15; 56%). Of the latter, perioperative aspiration was suspected in two cats, parasitic migration in two and antecedent upper respiratory tract infection was implicated in seven. Parapneumonic spread of infection after colonisation and invasion of lung tissue by oropharyngeal flora appears to be the most frequent cause of feline anaerobic polymicrobial pyothorax and contests the widespread belief that direct inoculation of pleural cavity by bite wounds is more common.     

Prevalence, biology, pathology, and public health importance of linguatulosis of camel in Iran

Linguatula serrata is a cosmopolitan zoonotic parasite with its adult form occurring in the nasal and respiratory passages of canids as the definitive hosts, while its immature stages localize in the mesenteric lymph nodes, liver, spleen, lungs, and, rarely, in other organs, such as the ocular region of herbivorous intermediate hosts. Humans can behave as both intermediate and final host and are infected by visceral and nasopharyngeal linguatulosis. Consumption of infected, improperly cooked viscera of the intermediate hosts, including sheep, goats, cattle, camels, or other herbivores containing the larval stages of this parasite is a potential source of infection of human beings with the nasopharyngeal form of linguatulosis. However, nasopharyngeal secretions or feces of carnivores containing eggs of Linguatula are the main sources for infecting human beings with the visceral form of this infection. In the present study, the prevalence of infection by nymphs of L. serrata in 101 camels in Yazd Province, central Iran, was estimated based on histopathological studies of samples from two, apparently enlarged, mesenteric lymph nodes (MLN), together with one sample from a whitish pinpoint spot on the liver and spleen of each animal. Thirteen camels (12.9%) were infected with the nymphal stage of L. serrata. Age and sex did not play a significant role in the prevalence of this parasitic infection. The number of parasites in each MLN ranged from one to six larvae. In view of the consumption of raw or undercooked liver and visceral organs of camel by humans of this region, the importance of careful inspection at slaughter needs to be emphasized.     

龙眼采后生理及贮藏保鲜

龙眼采后生理及贮藏保鲜潘一山（福建省漳州市农业科学研究所３６３０００）果树科学１９９６，（１）．－１９～２２１９９２～１９９３年用１５年生福眼品种为试材，将成熟度九成以上的果实的用３０±２℃常温贮藏，３～４℃冷藏贮藏和—１８℃低温速冻贮藏３种方式进行...     

麻竹和绿竹的栽培技术

麻竹(Sinocalamus latiflorus McClure)和绿竹(Sinocalamus oldhami McClure)在分类学上属禾本科竹亚科慈竹属;是我省特别是闽南地区主要的笋用竹种,其产笋盛期均在夏季,有夏季竹笋之称.一、概述麻竹和绿竹均为丛生型竹种,无竹鞭,竹秆丛生.其地上部与地下部的关系为:芽生笋,笋成竹,竹养芽.要多产笋,也须具备繁茂枝叶和粗壮的芽.麻竹和绿竹的竹笋是山母竹杠基部的大芽萌发而成.竹秆基部节上有4-10个互生大芽,排成相对的两列笋目.靠基部的一对笋目称头目,往上依次称二日、三目至尾目.一般头目前发成笋后,再往上依次萌发.     

台湾麻豆文旦生长发育生理及主要栽培技术

本文介绍了台湾麻豆文旦果实基本特性 ,认为台湾麻豆文旦是采收于 8月下旬至 9月上旬的早熟优良品种。同时从根的生长、枝梢、花果的发育等方面介绍了台湾麻豆文旦的生长发育生理 ,并根据台湾麻豆文旦的生长发育习性提出了土肥管理、整形修剪、疏花疏果等关键栽培技术措施。     

漳州市花卉业发展的思路与对策

1995年,省、市领导决定在漳州建立"闽南花卉中心",项目区规划从龙海九湖至漳浦长桥沿324国道建成一条长50公里,两侧各延伸300米、总面积666公顷的百里花卉长廊.花卉中心进行了高科技、集约化生产和经营,已成为全省花卉品种最齐全、规模最大的花卉生产基地和花卉市场.多年来由于种种因素限制,形成"三缺一"的局面.本文针对漳州市花卉业发展的现状与问题,提出"十五"期间发展思路与对策.