辣椒细菌性斑点病病原的鉴定及药剂防治试验

１９８８～１９９０年从石河子辣椒病叶上分离到１７个菌株，经形态学特征、染色反应、培养性状、生理生化特性、致病性等测定，确定这１７个菌株为油菜黄单胞菌疱斑致病变种即Ｘａｎｔｈｏｍｏｎａｓｃａｍｐｅｓｔｒｉｓｐｖ．ｖｅｓｉｃａｔｏｒｉａ（Ｄｏｉｄｇｅ）Ｄｏｗｓｏｎ。选用５种药剂分１０个浓度，经室内药效测定和田间药剂喷洒试验，其中以硫酸链霉素和ＣＴ效果最好。     

毛竹基腐病病原的研究

毛竹基腐病是于１９７５年在江苏省常熟市首次发现的新病害，现已知浙江，安徽，江西、湖北和四川均有分布，国外至今未见报道，经多年的分离培养试验，从病株组织内获得４种真菌和１种细菌的纯培养，通过竹笋期的室内，室外和有伤，无伤的多次反复接种和再分离试验，结果表明：这种细菌对毛竹不有任何致病力，茁芽短梗霉和交链孢对毛竹只有很轻微的致病力，仅造成局部组织的坏死，暗孢节菱孢和异孢镰刀菌对毛竹有极强的致病力，并能     

Overinhibition of Mitogen-Activated Protein Kinase Inducing Tau Hyperphosphorylation

To reveal the relationship between mitogen-activated protein kinase (MAPK) and tau phosphorylation, we used different concentration of PD98059, an inhibitor of MEK (MAPK kinase), to treat mice neuroblastma (N2a) cell line for 6 h. It showed that the activity of MAPK decreased in a dose-dependent manner. But Western blot and immunofluorescence revealed that just when the cells were treated with 16μmol/L PD98059, tau was hyperphosphorylated at Ser396/404 and Ser199/202 sites. We obtained the conclusion that overinhibited MAPK induced tau hyperphosphorylation at Ser396/404 and Ser199/202 sites.     

Two virus-encoded RNA silencing suppressors, P14 of Beet necrotic yellow vein virus and S6 of Rice black streak dwarf virus

Functional analysis for gene silencing suppressor of P14 gene of Beet necrotic yellow vein virus and S6 gene of Rice black streak dwarf virus was carried out by agro- infiltration with recombinant vectors of Potato virus X. The phenotype observation of green fluorescent protein (GFP)expression and Northern blot showed that the gene silencing of gfp transgenic Nicotiana benthamiana induced by homologous sequence was strongly suppressed by the immixture infiltration of either the P14 or the $6. In the suppressed plants, the gfp mRNA accumulation was higher than that in the non-suppressed controls and the symptoms caused by PVX infection became more severe, especially the gfp DNA methylation of plant genome was significantly inhabited when co-infiltrated with RBSDV S6 gene. These results suggested that these two virus genes were potentially to encode for proteins as RNA silencing suppressors.     

双向电泳联用质谱技术研究水稻明恢63对细菌性条斑病侵染的应答

水稻细菌性条斑病是由细条病菌Xanthomonas oryzae pv. oryzicola (Xooc)引起的一种细菌性病害,是我国南方稻区的主要病害.为了探明水稻对细条病的应答机制,我们应用双向电泳联用质谱技术,研究了水稻品种明恢63在水稻细条病病菌侵染后不同时期的全蛋白变化,并对差异蛋白进行了鉴定以及分析归类.共鉴定出17种表达上调的蛋白和10种表达下调的蛋白,这些蛋白参与了水稻对细条病侵染的信号识别及防卫应答,其中包括信号转导类蛋白、防卫相关蛋白、代谢相关蛋白和参与蛋白质合成的蛋白等.     

安康试验点精神发育迟滞遗传方式的探讨

目的探讨安康试验点精神发育迟滞的遗传方式,为该试验点精神发育迟滞儿童的综合防治提供依据。方法运用分离分析法和多基因阈值理论进行遗传流行病学分析。结果在安康试验点人群中,由非特异性精神发育迟滞和神经型亚克汀病所致精神发育迟滞的遗传率分别为86.61 11.10%和81.80 9.76%,最大似然法和理论子女总数法计算结果表明,不同婚配类型子女的患病率与理论患病率均无显著性差异。结论安康试验点存在两种精神发育迟滞,它们的遗传方式可能均为具有主效基因的多基因遗传。     

他汀类药物对心血管疾病的多重保护作用

他汀类药物对心血管痰病具有多重保护作用,包括修复受损血管、恢复血管内皮完整、减轻炎症反应、稳定斑块、扩张血管、抗氧化等,这些作用与降胆固醇作用相辅相成.他汀类药物在心血管疾病的治疗中起着越来越重要的作用.     

浅谈蛋鸭大肠杆菌病的诊治

本文结合一养殖场鸭群发病情况,剖析其临床症状,通过实验室检验研究,进一步提出针对性的防冶措施。     

番茄筋腐病的发生与防治

本文详细介绍了棚室番茄筋腐病的易发因素以及防治措施。对指导我省当前棚室番茄生产具有重要意义。     

53.8%可杀得可湿性粉剂防治茶芽枯病的药效试验

试验结果表明，用53.8%可杀得可湿性粉剂防治茶芽枯病效果显著，用53.8%可杀得可湿性粉剂1000倍液灌根，防效达88.2%，用53.8%可湿性粉剂3kg/hm^2于发病初期喷雾，二次同剂量施药，防效达86.94%。