中国顶丝藻科新记录

继续报导中国顶丝藻科新记录６种。渐尖旋体藻Ａｕｄｏｕｉｎｅｌａａｔｅｎｕａｔａ,球状旋体藻Ａ．ｇｌｏｂｏｓａ,纤细旋体藻Ａ．ｇｒａｃｉｌｉｓ,无柄旋体藻Ａ．ｈｙｐｎｅａｅ,偏枝旋体藻Ａ．ｓｅｃｕｎｄａｔａ,连续旋体藻Ａ．ｓｅｒｉａｔａ。     

中国顶丝藻科（Acrochaetiaceae）新记录Ⅱ

继续报导中国顶丝藻科新记录６种。柯狄旋体藻Ａｕｄｏｕｉｎｅｌａｃｏｄｉ,栖松旋体藻Ａ．ｃｏｄｉｃｏｌａ,半露旋体藻Ａ．ｅｍｅｒｇｅｎｓ,紫色旋体藻Ａ．ｐｕｒ－ｐｕｒｅａ,疏枝旋体藻Ａ．ｒｙｕｋｙｕｅｎｓｅ,桑托旋体藻Ａ．ｓａｎｃｔｉ－ｔｈｏｍａｅ。     

异极藻科八个分类单位的分类学问题初探

利用光学显微镜和扫描电镜对东北异极藻科植物３属８个分类单位即：异极藻属２种２变种１变型：细异极藻箭头变处Ｇ．ｓａｂｔｉｌｅ ｖａｒ．ｓａｇｇｉｔａ（Ｓｃｈｕｍ．．）Ｃｌ．Ｋ．,缢缩异极藻头状变种意大利变型Ｇ．ｃｏｎｓｔｒｉｃｔｕｍ ｖａｒ．ｃａｐｉｔａｔｕｍ ｆ．ｉｔａｌｌｉｃａ Ｍａｙｅｒ．,柔弱异极藻Ｇ．ｔｅｎｅｌｌｕｍ Ｋｕｔｚ．,半孔异极藻Ｇ．ｓｅｍｉａｐｅｒｔｕｍ Ｇｒｕｎ．长异极藻延长     

中国附丝壳属研究

本文报道了附丝壳属Ａｐｐｅｎｄｉｃｕｌｅｌｌａ ｖｏｎ Ｈｏｅｈｎｅｌ两个新种。它们是：蕈树附丝壳Ａｐｐｅｎｄｉｃｕｌｅｌｌａ ａｌｔｉｎｇｉａｅ Ｙ．Ｘ．Ｈｕ ｅｔ Ｂ．Ｓｏｎｇ、武夷附丝壳Ａｐｐｅｎｄｉｃｕｌｅｌｌａ ｗｕｙｉｅｎｓｉｓ Ｙ．Ｘ．Ｈｕ ｅｔ Ｂ．Ｓｏｎｇ。新种附有拉丁文、中文描述和显微结构图。模式标本藏于广东省微生物研究所真菌标本室（ＨＭＩＧＤ）。     

叉丝壳属一新种和一新记录种

本文描述了寄生于齿叶白绢梅上的叉丝壳属一新种和寄生于北五味子上的叉丝壳属一中国新记录种,分别是Ｍｉｃｒｏｓｐｈａｅｒａ ｅｘｏｃｈｏｒｄａｅ Ｑ．Ｘ．Ｌｕ ｅｔ Ｇ．Ｚ．ＬＵ和Ｍ．ｓｃｈｉｚａｄｒａｅ Ｓａｗａｄａ。     

中国附丝壳属研究III.

本文报道了中国的附丝壳属Ａｐｐｅｎｄｉｃｕｌｅｌｌａ二个新种,八角附丝壳ＡｐｐｅｎｄｉｃｕｌｅｌｌａｉｌｌｉｃｉｉＢ．Ｓｏｎｇ和新木姜子附丝壳ＡｐｐｅｎｄｉｃｕｌｅｌｌａｎｅｏｌｉｔｓｅａｅＢ．Ｓｏｎｇ新种附有拉丁文,英文描述和显微构图,模式标本保存于广东省微生物研究所标本室（ＨＭＩＧＤ）。     

我国首镒记录的菱形藻属植物

利用透射电你国南近岸水中的微型硅藻时,发现了菱形藻属Ｎｉｔｚｓｃｈｉａ Ｈａｓｓａｌｌ在我国首次记录的５个种,它们是：趋光菱形藻Ｎ．ａｇｎｉｔａ Ｈｕｓｔｅｄｔ,金色菱形Ｎ．ａｕｒａｒｉａｅ Ｃｈｏｌｎｏｋｙ,沟坑菱形藻Ｎｋｌａｃｕｕｍ Ｈ．Ｌａｎｇｅ－Ｂｅｒｔａｌｏｔ,极细菱形藻Ｎ．ｐｅｒｓｐｉｃｕａ Ｃｈｏｌｎｏｋｙ和 毛菱形藻Ｎ．ｐｕｂｅｎｓ Ｃｈｏｌｎｏｋｙ。     

中国顶丝藻科（Acrochaetiaceae）新记录I

中国顶丝藻科新记录６种。密集旋体藻Ａｕｄｏｕｉｎｅｌｌｅｄｅｎｓａ,亮管旋体藻Ａ．ｈｙａｌｏｓｉｐｈｏｎｉａｅ,小旋体藻Ａ．ｐａｒｖｕｌａ,羽状旋体藻Ａ．ｐｌｕｍｏｓａ,顶生旋体藻Ａ．ｔｅｒｍｉｎａｌｉｓ,图氏旋体藻Ａ．ｔｈｕｒｅｔｉｉ。     

发状含珠藻藻殖段的分化及其光合特性的研究

发状念球藻（Ｎｏｓｔｏｃ ｆｌａｇｅｌｌｉｆｏｒｍｅ Ｂｏｒｎ．ｅｔ Ｆｌａｈ．）存在着两个重要而明显的个体发育阶段,即营养藻丝体和藻殖段。采用弱光（铺垫闰遮光）,红光或在白光下向培养基中加入ＤＣＭＵ（３,４－ｄｉｃｈｌｏｒｏｐｈｅｎｙｌ－１,１－ｄｉｍｅｔｈｙｌｕｒｅａ）等藻丝体与藻殖段的光合特性,表明营养营丝体和藻殖段的可见光吸收光变和光合放氧活性表示发状念珠藻藻丝体与藻殖段的光合特性,表明营     

管藻目绿藻叶绿素蛋白复合物特性及比较研究

采用温和的ＰＡＧＥ法从管藻目刺松藻（Ｃｏｄｉｕｍ ｆｒａｇｉｌｅ （Ｓｕｒ．）Ｈａｒｉｏｔ）和假根羽藻（Ｂｒｙｏｐｓｉｓ ｃｏｒｔｉｃｕｌａｎｓ Ｓｅｔｃｈ．）,丝藻目绿藻软丝藻（Ｕｌｏｔｈｒｉｘ ｆｌａｃｃａ （Ｄｉｌｌｗ．）Ｔｈｕｒ．）,及菠菜（Ｓｐｉｎａｃｉａ ｌｏｅｒａｃｅａ Ｍｉｌｌ．）中分别得到１１、１１、７和９种色素蛋白复合物,对复合物的多种特性,包括分子量、Ｃｈｌ ａ／ｂ比值、叶绿     

Four new species of Gyrodactylus von Nordmann, 1832 (Monogenea,Gyrodactylidae) on gobiid fishes: combined DNA and morphological analyses

Four Gyrodactylus species parasitising four closely related gobiid species in European coastal waters were studied and compared with G. arcuatus Bychowsky sensu Bychowsky & Poljansky (1953) from Gasterosteus aculatus . These were G. gondae n. sp. from Pomatoschistus minutus and P. lozanoi , G. flavescensis n. sp. from Gobiusculus flavescens , G. arcuatoides n. sp. from P. minutus and G. branchialis n. sp. from P. microps. Combined molecular and morphological analyses, as well as morphometric and statistical methods, were used. The ssrRNA V4 region and the complete ITS rDNA region were sequenced. Genetically the four new species are clearly distinct from G. arcuatus . From a morphological point of view, the haptoral hard parts of G. gondae n. sp., G. flavescensis n. sp. and G. arcuatoides n. sp. are related to those of G. arcuatus, while these parts of G. branchialis n. sp. are different, but related to those of G. quadratidigitus Longshaw, Pursglove & Shinn, 2003. For the latter two species, a new species group is formed. The V4 and ITS sequence analyses, however, indicate a close relationship between G. branchialis and the three G. arcuatus-like species.     

G1-specific cyclins: in search of an S-phase-promoting factor

In budding yeast, Saccharomyces cerevisiae, the two principal cell cycle transitions, from G1 to S phase and from G2 to M phase, are controlled by the same protein from G2 to M phase, are controlled by the same protein kinase, CDC28, a homolog of the cdc2 protein kinase in fission yeast and other organisms. The G1 to S phase activity of the kinase is associated with accumulation of a novel family of G1 cyclins, distinct from cyclins that are required to activate the kinase for G2 to M phase functions. It remains to be determined whether G1 cyclins with similar functions exist in higher cells.     

中国太宇谷蛾属分类研究(鳞翅目,谷蛾科)(英文)

记述中国太宇谷蛾属Gerontha Walker10种,其中有4新种:拟华太宇谷蛾G.similihoenei sp.nov.,喙太宇谷蛾G.rostriformis sp.nov.,梯缘太宇谷蛾G.trapezia sp.nov.,褶太宇谷蛾G.rugulosa sp.nov.和3新纪录种:暹罗太宇谷蛾G.siamensis Moriuti,1989(图7,17～18)、清迈太宇谷蛾G.nawapuriensis Moriuti,1989(图8,19)、钻太宇谷蛾G.borea Moriuti,1977(图9,20).首次发现和报道了弯茎太宇谷蛾Gerontha flexura Huang et al .(图6,15-16)和暹罗太宇谷蛾G.siamensis Moriuti的雌性个体.文中给出了所有中国种的检索表.研究标本保存于南开大学生命科学学院昆虫标本室.     

A SIBLING NEW SPECIES OF GLYCASPIS TAYLOR (HOMOPTERA: PSYLLIDAE) AND REINSTATEMENT OF THREE SYNONYMS

The first two sibling species recognised in the genus Glycaspis Taylor are recorded from different eucalypt hosts; Glycaspis (Glycaspis) propensa sp.n. is described from the "box" group and is a sibling of G. (G.) dulcieana Moore from the "ironbark" group. The previously synonymised species G. mirabilis Moore, G. vellerosa Moore and G. convallaria Moore are reinstated as valid species.     

台南并脊天牛种团的订正研究(鞘翅目,天牛科,沟胫天牛亚科)(英文)

对Breuning(1956)提出的Glenea fainanensis 种团重新进行了研究,并为G.fainanensis,G.inlineata和G.subregularis指定了选模.两个种的地位得到了订正:G.inlineata Pic star.nov.由种下地位G.fainanensis v.inlineata Pic,1943提升为种级阶元,G.subregularis Pic stat.nov.由种下地位G.internedivisa v.subregularis Pic,1943提升为种级阶元.G.tenuivittata Gressitt,1951被确认为G.subregularis Pic的新异名.编制了上述3个种的检索表、给出了成虫整体彩色照片和外生殖器照片.     

Evidence for the expression of both the hydrolase and translocase components of hepatic glucose-6-phosphatase in murine pancreatic islets

Glucose-6-phosphatase (G6Pase) is a multicomponent enzyme system which regulates the catalysis of glucose-6-phosphate (G6P) to glucose and inorganic phosphate. G6Pase can antagonize glucose phosphorylation, a step prerequisite in the regulation of insulin secretion from pancreatic beta cells, and G6Pase activity is increased in islets isolated from animal models of type II diabetes. Using RT-PCR with hepatic G6Pase catalytic subunit primers, we demonstrate that the sizes of amplified products from ob/ob mouse islets are identical to those from liver cDNA. This was confirmed by PCR-based cloning and sequencing of the hepatic G6Pase catalytic subunit open reading frame from islet cDNA. The expression in islets of the G6P transporter, G6PT1, was also demonstrated, suggesting that all of the identified hepatic G6Pase system genes are expressed in pancreatic islets. Finally, the expression of islet-specific G6Pase-related protein (IGRP) in pancreatic islets was confirmed and its expression in liver was also observed.     

A note on simulating null distributions for G matrix comparisons

Genetic variances and covariances, summarized in G matrices, are key determinants of the course of adaptive evolution. Consequently, understanding how G matrices vary among populations is critical to answering a variety of questions in evolutionary biology. A method has recently been proposed for generating null distributions of statistics pertaining to differences in G matrices among populations. The general approach facilitated by this method is likely to prove to be very important in studies of the evolution of G . We have identified an issue in the method that will cause it to create null distributions of differences in G matrices that are likely to be far too narrow. The issue arises from the fact that the method as currently used generates null distributions of statistics pertaining to differences in G matrices across populations by simulating breeding value vectors based on G matrices estimated from data, randomizing these vectors across populations, and then calculating null values of statistics from G matrices that are calculated directly from the variances and covariances among randomized vectors. This calculation treats breeding values as quantities that are directly measurable, instead of predicted from G matrices that are themselves estimated from patterns of covariance among kin. The existing method thus neglects a major source of uncertainty in G matrices, which renders it anti‐conservative. We first suggest a correction to the method. We then apply the original and modified methods to a very simple instructive scenario. Finally, we demonstrate the use of both methods in the analysis of a real data set.     

New species of <Emphasis Type="Italic">Geonoma</Emphasis> (Palmae) from Ecuador

Five new species of Geonoma from Ecuador, G. awaensis, G. ecuadoriensis, G. hollinensis, G. lanata, and G. skovii, are described and illustrated and are compared to similar species. Their distributions are mapped.