Coat protein gene and 3′ non-coding region of tobacco mosaic virus and tomato mosaic virus are associated with viral pathogenesis in Nicotiana tabacum

The camellia isolate of tomato mosaic virus (ToMV-TL) can induce local necrotic lesions on the inoculated leaves in Nicotiana tabacum, whereas the broad bean isolate of tobacco mosaic virus (TMV-B) produces the mosaic symptom on systemic leaves. To examine viral determinant for differential infection phenotype in N. tabacum, the coat protein gene and the 3′ non-coding region of TMV was replaced with that of ToMV, the chimeric virus induced similar local necrotic lesions to that induced by ToMV. The results indicate that the coat protein gene and the 3′ non-coding region of TMV and ToMV influence the virus-induced pathogenesis in N. tabacum.     

新型复合果蔬营养果酱的研制

采用单因子试验找出原料最佳使用范围，在单因子试验的基础上，采用正交试验的方法，筛选出原料的最佳配方：草莓、番茄、红苕、胡萝卜原料的最佳配比为8：4：1：3：1，加等量糖，2‰柠檬酸。     

浙江省玉苍山种子植物区系的初步研究

对浙江省苍南县玉苍山共有的610种种子植物(包括变种，隶属于345属110科)区系作了分析研究，并与邻近地区的植物区系作了比较，表明玉苍山植物区系以泛热带成分、北温带成分和东亚成分为主，处于华南、华东两大区系的过渡地带上，具有中亚热带中部北缘的区系性质，与邻近的井冈山地区关系最为密切。     

采后番茄果皮中抗病相关酶活性的诱导

绿熟番茄经2．4kJ/m^2UV-C照射后，果皮中防御酶活性被诱导升高，POD、PPO活性在处理后第2天分别提高1．3和1．13倍，PAL活性在第4天提高1．69倍，几丁质酶活性下降被延缓，β-1，3-葡聚糖酶活性在第2天提高1．3倍，同时贮期自然发病率和人工接种发病率降低。     

山楂核干馏油抑菌及杀菌作用的研究

测定了山楂核干馏油对5种主要的食物中毒菌：大肠杆菌、伤寒杆菌、痢疾杆菌、金黄色葡萄球菌、绿脓假单胞菌的抑菌、杀菌作用。结果表明：山楂核干馏油对这5种细菌的最小抑菌浓度(CMIC)为0．25％～0．5％，最小杀菌浓度(CMBC)为1．0％～2．0％；其杀菌效果与浓度及作用时间有着密切的关系，而且不同种细菌对山楂核干馏油的敏感性也有一定差异。     

乙肝表面抗原小蛋白S基因导入番茄的遗传转化体系的建立

以丽春番茄无菌苗的子叶为外植体，以农杆菌菌株EHA105(包含质粒pBin438S)为载体，将乙肝表面抗原小蛋白S基因导入番茄组织中，基本培养基采用MS 6—BA1．0mg／L IAA0．2mg／L，在共培养时加入乙酰香酮100μmol／L作为诱导剂，经过组织培养得到转基因植株，对转化植株基因组进行的分子学PCR检测表明，外源基因有可能已整合到番茄基因组中，该转基因遗传体系的建立为利用转基因植物生产乙肝口服疫苗奠定了基础。     

野生线叶野豌豆种子特性实验室测定研究

通过对线叶野豌豆种子进行处理,测定种子千粒重、种子生活力、种子发芽率,并采用不同处理方法对种子发芽率进行了研究,结果表明,用浓硫酸浸种取得的效果最佳,最佳的浸种时间为5～15min.     

降香黄檀荚果和种子生长发育规律研究

降香黄檀(Dalbergia odorifera)为珍稀树种,天然分布的降香黄檀濒临绝迹,为保护现有的降香黄檀种质资源,本研究以广西降香黄檀荚果作为研究对象,观察荚果和种子的生长发育变化情况,并对降香黄檀种子部分生理生化指标及发芽率的变化进行测定,探讨降香黄檀荚果和种子的生长发育规律,为确定其适宜采收期提供理论支撑。结果表明：降香黄檀荚果和种子的颜色由浅绿色逐渐过渡到黄褐色,最终在盛花期后160 d后变为深褐色;荚果和种子体积大小在整个采收期中一直维持不断增长的趋势,且在盛花期后185 d开始缓慢而稳定地增长;种子含水量在盛花期后185 d后降至35%左右并趋于稳定;种子可溶性糖含量呈现先升高后降低的趋势,在盛花期后165 d最高,为45 g·kg^-1左右,直至盛花期后195 d降至42 g·kg^-1左右;种子可溶性蛋白含量呈“双峰”动态变化,盛花期后135 d达到第1个峰值,盛花期后180 d达到第2个峰值,之后开始缓慢下降;种子的发芽势、发芽率在盛花期后140-170 d达到最高,且与170 d后无显著性差异。因此,盛花期后185-200...     

毛白蜡种子药剂浸种催芽试验

对毛白蜡（ＦｒａｘｉｎｕｓｐｅｎｎｓｙｌｖａｎｉｃａＭａｒｓｈ．）种子进行药剂浸种催芽对比试验,结果表明,５０℃始温温水浸种２４ｈ后,用吲哚乙酸（ＩＡＡ）浸种３ｈ和２×１０－４赤霉素（ＧＡ３）浸种２４ｈ置育苗盆催芽２５～２７天,发芽率分别达到６４％和６２％,与层积催芽法发芽率基本相当。     

Instrumental causes and the natural origin of souls in Antonio Ponce Santacruz's theory of animal generation

This article studies the theory of animal seeds as purely material entities in the early seventeenth-century medical writings of Antonio Ponce Santacruz, royal physician to the Spanish king Philipp IV. Santacruz adopts the theory of the eduction of substantial forms from the potentiality of matter, according to which new kinds of causal powers can arise out of material composites of a certain complexity. Santacruz stands out among the late Aristotelian defenders of eduction theory because he applies the concept of an instrument of direction developed by the medieval Avicenna commentator Gentile da Foligno and gives a novel turn to this concept by interpreting animal seeds as separate instruments. The article situates Santacruz's theory in the context of early modern debates about the concept of the eduction of forms, as well as in the context of early modern debates about the concept of separate instruments. Particular attention is paid to Santacruz's responses to the biological views of Julius Caesar Scaliger and Thomas Feyens. Santacruz's response to Scaliger turns out to be central for his explication of the eduction relation, and Santacruz's response to Feyens turns out to be central for his explication of the nature of instrumental causation.