中国淡水红藻-新记录属——巴尔比亚藻属

报道中国产的淡水红藻一个新记录属——巴尔比亚藻属(Balbiania Sirodot)。     

中国山芹属一新种的研究

运用多学科综合分类手段,研究了山芹不同产地居群的变异,发现分布于我国东北部的各居群与华东居群不但存在地理分布上的间断,而且在外部形态、果实及叶柄解剖、核型组成和生物学特性等方面也存在显著差异,因而华东的山芹各居群应独立出来完成一新种──华东山芹OstericumhuadongensisZ.H.PanetX.H.L。     

淡水红藻一新种——异孢奥杜藻

淡水红藻一新种———异孢奥杜藻谢树莲凌元洁（山西大学生命科学系太原０３０００６）ＡＮＥＷＳＰＥＣＩＥＳＯＦＦＲＥＳＨＷＡＴＥＲＲＥＤＡＬＧＡＥ———ＡＵＤＯＵＩＮＥＬＬＡＨＥＴＥＲＯＳＰＯＲＡＦＲＯＭＣＨＩＮＡＸＩＥＳｈｕＬｉａｎＬＩＮＧＹｕａｎ...     

表达尾穗苋凝集素基因的转基因烟草对桃蚜(Myzus persicae)繁殖的影响(英文)

To investigate the possible function of the agglutinin from Amaranthus caudatus L. (ACA) in plant defending against insect pests, ACA cDNA was cloned by RT-PCR and the 5‘ and 3‘ sequences were confirmed by rapid amplification of cDNA ends (RACE). The phloem-specific expression vector of ACA gene, pBCACAc, was constructed based on the plant binary vector pBC438 and transfered into tobacco plants via Agrobacterium-mediated transformation method. Results from PCR and Southern blotting analysis showed that AOA gene was integrated into the genomes of transformed plants and the transgene integration varied from one to four estimated copies per genome. Western blotting analysis indicated that ACA gene was transcribed and translated in the transgenic plants. The bioassay of Myzus persicae Sulzer on detached leaves demonstrated that the 78% transgenic tobacco plants displayed an average aphid-resistant rate of more than 75%. Some apterous progeny of M. persicae were found dead on the resistant plants. These results indicate that ACA gene should be an effective aphid-resistant gene and could be valuable for application in crop breeding for aphid resistance.     

薇袖蜡蝉属Vinata Distant 中国种类记述(同翅目: 袖蜡蝉科)

记述中国袖蜡蝉科薇袖蜡蝉属2新种四斑薇袖蜡蝉Vinata quattumaculata sp.nov.及三斑薇袖蜡蝉Vinata trimaculata     

中国一新记录属——小裸囊菌属

<正>INTRODUCTION The genus Gymnascella was established by Peck in 1884 (see Kirk et al. 2008) with the type species G. aurantiaca. As an onygenalean ascomycetes it was unusual because it was mainly isolated from camel skin,     

野螟亚科一新属和二新种记述(鳞翅目,草螟科)

建立了窗野螟属Torulisquama gen.nov.,记述了2新种,即角窗野螟T. ceratophora sp.nov.和椭圆窗野螟T.ovata sP.nov..文中提供了成虫和外生殖器特征图,编制了窗野螟属分种检索表.模式标本保存在南开大学昆虫标本室.     

中国燕山地区地星属2个新种

地星属Geastrum隶属于担子菌门Basidiomycota、伞菌纲Agaricomycetes、地星目Geastrales、地星科Geastraceae,因奇特的外观、生态和医药用价值吸引了国内外真菌工作者的关注.本研究对燕山地区地星种类进行了详细调查,通过形态学观察结合ITS-LSU-rpb1-atp6四基因系统...     

假单胞菌属脂肪酶的分子生物学研究进展

微生物脂肪酶是商品化脂肪酶的主要来源,并广泛应用于诸多工业领域。与其他微生物脂肪酶相比,细菌脂肪酶催化反应的类型更多、活性更高、稳定性更好,其中又以假单胞菌属(Pseudomonas)脂肪酶的性能最为优越。作为性能最为优越、应用最为广泛的一类脂肪酶,假单胞菌属脂肪酶研究一直是脂肪酶领域的热点。就假单胞菌属脂肪酶的分子生物学研究进展进行归纳和述评,包括基因资源挖掘及克隆、基因表达调控及分泌机制、活性过表达策略、蛋白质结晶及3D结构解析、蛋白质工程,并对其未来研究方向做出展望,以期为后续研究提供有益参考。     

条盖盔孢伞子实体及菌丝体中鹅膏毒素检测

条盖盔孢伞(Galerina sulciceps)是一种有毒蘑菇,近年来在中国南方发生了多起因误食该菌引起的中毒事件。在分离获得纯培养物的基础上,采用高效液相色谱(HPLC)法检测分析了条盖盔孢伞子实体和菌丝体中的鹅膏毒素。结果显示野生条盖盔孢伞子实体(干质量)含有α-amanitin和β-amanitin分别为868.32μg/g和406.56μg/g,液体发酵培养的菌丝体中未检测到α-amanitin和β-amanitin。