Biotechnology in europe

The countries of the European Economic Community have recently mounted considerable efforts to commercialize biotechnology. Together, these efforts approach the same number of companies and level of government spending as those in the United States. In Europe there is more government emphasis on support for industry-university collaborations and industrial projects than in the United States, where basic research is emphasized. European efforts are often not easily delineated from those in the United States; many European companies have extensive U.S. operations and many U.S. companies have involvement in Europe. Strategies and efforts in European biotechnology are examined and compared to those in the United States.     

生物技术在植物病虫草害防治中的应用及展望

植物病虫草害是造成农作物减产的主要因素.使用生物技术手段培育抗病虫草害作物品种是农业发展的一个方向,将抗病虫草害基因导入到农作物的细胞中并使其在寄主细胞内稳定的遗传和表达,从而形成新的抗病虫草害品种.近年来,生物技术在病虫草害防治中的应用研究取得了一系列令人瞩目的进展,并成为应用分子生物学的研究热点.就植物抗病虫草害基因的分离、遗传转化和抗性分子机理,抗病虫草害基因工程在农业上的应用以及发展现状等国内外研究状况作一综述.     

Biotechnology. Perseverance leads to cloned pig in Japan

Low success rates and unpredictable results have plagued cloning researchers, particularly those trying to clone pigs. Now, on page 1188, Japanese researchers offer the first scientific report of a cloned pig, named Xena, raising hopes that pigs could one day provide an unlimited supply of organs for transplantation thanks to their close physiological relationship to humans. But this week those hopes were dealt a blow by more evidence suggesting that pig retroviruses can infect human cells.     

农业生物技术研究进展概况

农业生物技术在农业中的应用十分广泛,通过生物的方法来改善生产,使得生态能够得到更好地平衡,从而促进农业能够更好地可持续发展。     

生物技术在林业上的应用

生物技术被越来越多的利用到林业生产和研究中,笔者从基因工程、营养繁殖技术、分子标记等方面叙述了现代生物技术在林业中的应用。     

番木瓜生物技术研究进展

综述了国内外番木瓜生物技术及其应用的研究进展，内容涉及番木瓜愈伤组织、体细胞胚、芽、根的诱导等组织培养技术以及在快繁育苗、人工种子制作、抗病毒转基因、木瓜蛋白酶生产等方面的应用。