菅属植物的地理分布

菅属(Themeda Forssk.)是禾本科高粱族(Poaceae:Andropogoneae)中佛焰苞物种的代表类群之一,在高粱族占据关键的系统演化位置,具有高度的形态和生态多样性。通过野外调查和查阅标本及文献,菅属约有27种植物,旧世界均有分布,新世界3种隶属于菅组。中国有13种,分布在西南至华南各省(区),云南干热河谷地区有10种。研究表明中国云南及印度北部是菅属的分布中心和多样性中心,中国云南及印度北部是否为菅属的起源地尚需确证。     

C 族GPCRs 的半胱氨酸富集区的研究进展及药学意义

C族GPCRs是体内重要的受体,参与众多重要的生理和病理进程,并具有复杂的结构和激活机制。在体内该族受体形成组成性的二聚体并具有七螺旋跨膜结构(heptahelical transmembrane domain,HD)、捕蝇草模块(venus flytrap domain,VFT)和半胱氨酸富集区(cysteine-rich domain,CRD)。本文系统介绍了近年来CRD单体的序列和结构解析,以及参与受体激活过程的机制研究的历程和进展。同时也展望了这些基础研究成果对于开发新的更具有成药性的以C族GPCRs为靶点的变构剂的指导意义。     

基于二氧化碳共聚物的全生物降解塑料

二氧化碳(CO2) 是主要的温室气体,同时也是一种取之不尽、用之不竭的廉价碳氧资源.以二氧化碳为原料合成可生物降解的脂肪族聚碳酸酯是二氧化碳固定和利用领域的重要课题,其中最受关注的是由二氧化碳和环氧丙烷共聚制备聚丙撑碳酸酯(PPC) .由于其具备良好的生物降解性能,成本相对较低,且大量利用了二氧化碳(聚合物中CO2 的重量超过40%),而受到高度重视.     

中国壁蜂族十新种记述(蜜蜂总科,切叶蜂科,壁蜂族)

记述壁蜂族Osmiini 4属10新种:方角壁蜂Osmia(s.str.)quadricornuta sp.nov.,拟红壁蜂Osmia(s. str.)rufinoides sp.nov.,延边壁蜂Osmia(s.str.)yanbianense sp.nov.,陕西壁蜂Osmia(Helicosmia)shaanxiense sp.nov.,吉林壁蜂Osmia(Melanosmia)jilinense sp.nov.,新疆栉壁蜂Stenosmta xinjiangense sp. nov,脊臀裂爪蜂Chelostoma(s.str.)carinocaudata sp.nov.,长舌裂爪蜂Chelostoma(Ceriaheriades)longilabraris sp.nov.,红角拟孔蜂Hoplitis(Alcidemea)rufoatennails sp. nov.,波氏拟孔蜂Hoplitis(Megalosmia)popovi sp. nov..模式标本均保存于中国科学院动物研究所.     

连唇步甲属记述及一新种描述(鞘翅目,步甲科,壶步甲族)

简要记述了步甲科中国特有属连唇步甲属Sofota Jedlieka 之鉴别特征及地理分布情况,本属原记载2种,即台湾连唇步甲S.chujoi Jedlicka(产于台湾省)和黑连唇步甲S.nigrum Tian et Chen(产于广东省).本文描述采自广东省北部的1新种:南岭连唇步甲S.nanlingense sp.nov.,并提供本属分种检索表.     

中国四川粉蝇族五新种记述(双翅目,丽蝇科,丽蝇亚科)

记述中国粉蝇族Polleniini(丽蝇科,丽蝇亚科)5新种,分别为二郎山粉蝇Pollenia erlangshanna sp.nov.,四川粉蝇Pollenia sichuanensis sp. nov.,伪黑尾金粉蝇Xanthotryxus pseudomelanurus sp.nov.,长阳墨粉蝇Morinia proceripenisa sp.nov.,橙黄瘦粉蝇Dexopollenia aurantifulva sp. nov..模式标本保存于中国科学院上海生命科学研究院植物生理生态研究所.     

前胡族花粉外壁超微结构及其系统学意义(英文)

Transmission electron microscopy (TEM) observation of pollen grains of 18 species belongingto 18 respective genera of the tribe Peucedaneae Drude revealed distinct ultrastructural difference in thepollen exine, including the thickness and features of rectum, columnar layer, foot layer and endexine. Thesystematic position of those 18 species are re-evaluated based on their ultrastructural characteristics ofpollen exine observed in this study. Seven genera related to Angelica L. in Angelicinae Drude have beendeduced to genus Angelica L. For example, Osterfcum grosseserratum (Maxim.) Kitagawa was changed toAngelica L. by some authors, but it differs from Angelica sinensis (Oliv.) Diels in having well developedtectum which is thicker than the columnar layer and foot layer. Its columnar layer is quite well-developedwith long and branched columellae. Besides its surface is tuberculated. Evidently, its development exceedsthat of Angelica sinensis. However, it is only a moderate evolutional species in its genus, and the Angelicasinensis accounts as the most advanced species in Angelica Diels, thus, placing genus Ostencum Hoffm.in Angelica L is not suitable, it may be more appropriate to keep its original position. In addition, Ferulaakitschkensis B. Fedtsch. ex K.-Pol. differs greatly from those of Talassia transiliensis (Herd.) Korov. andSchumannia turcomnnia Kuntze, because of its very well-developed columnar layer, being about four tofive times thicker than the total of tectum and foot layer, tuberculated tectum surface and complicatedstructure of columnellae. As another species Heracleum forrestJ‘iWolff also differs from Semenovia rubtzovii(Schischk.) Monden. in having an even thickness of exine and well-developed columnar layer, it seemssuitable that they should also be treated as two independent genera.     

盅口族线虫分类系统评述(线虫纲:圆线科)

对盅口族Cyathostominea线虫分类系统的研究进行了回顾和讨论,根据各分类学家的意见,笔者提出了盅口族线虫的分类系统,该系统以Lichtenfels等人（1998）的观点为基础,其不同点在于：1）将马线虫属Caballonema Abulasze,1937和柱咽属Cylindropharynx Leiper,1911从盅口族中移出,放入柱咽族Cylindropharyngea Popova,1952;2)Scialdo-Krecek(1984)描述的Cylicodon-tophorus reineckei应归属于副杯口属Parapoteriostomum Hartwich,1986.     

中国丽蝇亚科乌丽蝇族二新种（双翅目：丽蝇科）

记述采自中国四川省丽蝇科乌丽蝇族Melanomyini中的鬃腹丽蝇属Tricy-cleopsis Villeneuve,1927和尼蚓蝇属Nepalonesia Kurahashi et Thapa,1994的2新种：毛角鬃腹丽蝇Tricycleopsis pilantenna,sp.nov;范氏尼蚓蝇Nepalonesia fanzidei,sp.nov,模式标本存中国科学院上海昆虫研究所昆虫标本馆。     

小麦族披碱草属、鹅观草属和猬草属模式种的C带研究

采用改良的Giemsa C带技术,分析了小麦族披碱草属、鹅观草属和猬草属模式种的染色体C带带型。Elymus sibiricus、Roegneria caucasica和Hysrix patula的染色体在Giemsa C带带型上存在明显的差异,显示了这3个属模式种的物种特异性。3个模式种的Giemsa C带核型表明,C带带纹主要分布在染色体的末端和着丝粒附近,而中间带相对较少。对E.sibiricus、R.caucasica和H.patula的St、H、Y染色体组C带带型与其它物种的St、H、Y染色体组C带带型的差异进行了讨论。