Expression and secretion of barley α-amylase and A.niger glucoamylase in Saccharomyces cerevisiae

Ｓａｃｃｈａｒｏｍｙｃｅｓｃｅｒｅｖｉｓｉａｅｉｓａｎｉｎｄｕｓｔｒｉａｌｓｔｒａｉｎｗｉｄｅｌｙｕｓｅｄｉｎｔｈｅｐｒｏｄｕｃｔｉｏｎｏｆｅｔｈａｎｏｌ,ｂｒｅｗｅｒｙａｎｄｓｉｎｇｌｅｃｅｌｌｐｒｏｔｅｉｎ(ＳＣＰ).Ｂｕｔｉｔｉｓｕｎａｂｌｅｔｏｆｅｒｍｅｎｔｓｔａｒｃｈｄｕｅｔｏｔｈｅｌａｃｋｏｆａｍｙｌｏｌｙｔｉｃｅｎｚｙｍｅｓ.Ｔｈｅｓｔａｒｃｈｍｕｓｔｆｉｒｓｔｂｅｃｏｏｋｅｄ,ｌｉｑｕｉｆｉｅｄａｎｄｃｏｎｖｅｒｔｅｄｉｎｔｏｇｌｕｃｏｓｅａｎｄｔｈｅｎｕｔｉｌｉｚｅｄｉｎｃｏｍｍｅｒ…     

TBP的联结因子TAFs的结构与功能

ＴＢＰ的联结因子ＴＡＦｓ的结构与功能潘建伟赵章杏朱睦元（杭州大学生命科学学院,杭州３１００１２）潘伟槐黄承才（绍兴文理学院生化系,绍兴３１２００）ＳｔｒｕｃｔｕｒｅｓａｎｄＦｕｎｃｔｉｏｎｓｏｆＴＢＰ－ａｓｏｃｉａｔｅｄＦａｃｔｏｒｓＴＡＦｓＰＡＮＪ...     

Activation and conformational changes of adenylate kinase in urea solution

Ａｄｅｎｙｌａｔｅｋｉｎａｓｅ(ＥＣ2.7.4.3)ｃａｔａｌｙｚｅｓｔｈｅｉｎｔｅｒｃｏｎｖｅｒｓｉｏｎｏｆａｄｅｎｉｎｅｎｕｃｌｅｏｔｉｄｅｓａｃｃｏｒｄｉｎｇｔｏ:ＡＤＰ+ＭｇＡＤＰＡＭＰ+ＭｇＡＴＰ.Ｉｔｉｓｕｂｉｑｕｉｔｏｕｓａｎｄｐａｒｔｉｃｕｌａｒｌｙａｂｕｎｄａｎｔｉｎｔｉｓｓｕｅｓｗｉｔｈｈｉｇｈｅｎｅｒｇｙｔｕｒｎｏｖｅｒ.Ｒａｂｂｉｔｍｕｓｃｌｅａｄｅｎｙｌａｔｅｋｉｎａｓｅｉｓａｍｏｎｏｍｅｒｅｎｚｙｍｅｗｉｔｈｔｗｏｓｔｒｕｃｔｕｒｅｄｏｍａｉｎｓｃｏｍｐｏｓｅｄｏｆ194ａｍｉｎｏａ…     

稀土离子对烟草RuBPcase的激活作用及EXFAS研究

研究了稀土离子（Ｌｎ３ ＋） 对烟草（Ｎｉｃｏｔｉａｎａ ｔａｂａｃｕｍ）１ ,５ － 二磷酸核酮糖羧化酶（ＲｕＢＰｃａｓｅ）活力的影响。结果表明,在该酶的反应体系中,用Ｌｎ３ ＋ 替代Ｍｇ２ ＋ ,烟草ＲｕＢＰｃａｓｅ 的活力随Ｌｎ３ ＋ 浓度的变化曲线呈双相效应, 即在高浓度时, Ｌｎ３ ＋ 抑制该酶活性; 低浓度的Ｌｎ３ ＋ 提高ＲｕＢＰｃａｓｅ 活性。其活化效应为轻稀土离子大于重稀土离子,但Ｌｎ３ ＋ 的活化效应低于Ｍｇ２ ＋ 。在有Ｍｇ２ ＋ 的反应体系中,Ｌｎ３ ＋ 在低浓度时也有提高ＲｕＢＰｃａｓｅ 活性的能力,提高幅度较低;而高浓度的Ｌｎ３ ＋ 显著地抑制酶活性。进一步对ＲｕＢＰｃａｓｅ － Ｌａ 二元复合物的ＥＸＦＡＳ 研究,证实Ｌａ３ ＋ 与ＲｕＢＰｃａｓｅ 氨基酸残基的Ｏ 原子键合,键长为２ ．５１?;Ｌａ３ ＋ 还与Ｓ 原子结合。最后对Ｌｎ３ ＋ 和ＲｕＢＰｃａｓｅ 相互作用的分子机制进行讨论     

滇东南大围山地区远志科一新种

肉茎远志　新种　图 1ＰｏｌｙｇａｌａｃａｒｎｏｓｉｃａｕｌｉｓＷ .Ｈ .Ｃｈｅｎ＆Ｙ .Ｍ .Ｓｈｕｉ,ｓｐ .ｎｏｖ .Ｆｉｇ .1(Ｓｅｃｔ .ＰｓｅｕｄｏｓｅｎｅｉｏｃａｒｄｉｕｍＡｄｅｍａ)ＳｐｅｃｉｅｓＰ ｌａｃｅｉＣｒａｉｂｅｔＰ ｉｓｏｃａｒｐａｅＣｈｏｄａｔａｆｆｉｎｉｓ ,ｓｅｄｃａｕｌｅｃａｒｎｏｓｏ ,4 - 6ｍｍｄｉａｍ ,ｓｅｍｉｎｕｍｔｅｓｔｉｓｌａｅｖｉｂｕｓ ,ｐｕｎｃｔａｔｉｓｎｏｎｖｅｒｒｕｃａｔｉｓｄｉｆｆｅｒｔ.Ｈｅｒｂａａｎｎｕａ ,10 - 30ｃｍａｌｔａ .Ｒａｄｉｘｌｉｇｎｏｓａ .Ｃａｕ…     

广东滩涂经济鱼类寄生吸虫Ⅵ.独睾科二新种记述(复殖目)

本文对广东滩涂经济鱼类寄生复殖吸虫独睾科ＭｏｎｏｒｃｈｉｉｄａｅＯｄｈｎｅｒ,１９１１中的两新种分别进行详细的描述,其中细长椭囊吸虫Ｅｌｌｉｐｔｏｂｕｒｓａａｔｔｅｎｕａｔｕｓｓｐ．ｎｏｖ作为拟原穴亚科ＰｓｅｕｄｏｐｒｏｃｔｏｔｒｅｍａｔｉｎａｅＥｌｌｉｐｔｏｂｕｒｓａ属的新种,巨穴孤睾吸虫Ｌａｓｉｏｔｏｃｕｓｍａｒｏｔｒｅｍａｓｐ．ｎｏｖ作为孤睾亚科ＬａｓｉｏｔｏｃｉｎａｅＬａｓｉｏｔｏｃｕｓ属     

镰羽水龙骨——水龙骨属一新种

镰羽水龙骨　新种　图1ＰｏｌｙｐｏｄｉｏｄｅｓｆａｌｃｉｐｉｎｎｕｌａＳ.Ｋ.ＷｕｅｔＪ.Ｍｕｒａｔａ,ｓｐ.ｎｏｖ.Ｆｉｇ.1ＳｐｅｃｉｅｓｎｏｖａａｄｓｐｅｃｔｕａｒｃｔｅａｆｆｉｎｉｓＰ.ｗａｔｉｉ(Ｂｅｄｄ.)Ｃｈｉｎｇ,ｓｅｄｄｉｆｆｅｒｔｐｌａｎｔａｍａｊｏｒｅ,100～120ｃｍｌｏｎｇａ,ｐｅｎｄｕｌａ,ｒｈｉｚｏｍａｔｅｎｉｇｒｏ,ｇｌａｂｒｏ,ｎｏｎｐｒｕｉｎａｔｏ,ｆｒｏｎｄｉｂｕｓｕｔｒｉｎｑｕｅｉｎｄｕｍｅｎｔｉｓｆｕｒｆｕｒａｃｅｉｓｂｒｕｎｎｅｉｓｖｅｌｎｉｇｒｉｓ(ｎｅｃｐｉｌｏｓｉｓ),ａ…     

广东金丝桃属一新种和一新亚种

1　ＨｙｐｅｒｉｃｕｍｌｉａｎｚｈｏｕｅｎｓｅＬ .Ｈ .ＷｕｅｔＤ .Ｐ .Ｙａｎｇ ,ｓｐ .ｎｏｖ.Ｆｉｇ 11ａ　ｓｕｂｓｐ .ｌｉａｎｚｈｏｕｅｎｓｅＳｐｅｃｉｅｓａｆｆｉｎｉｓＨ ａｔｔｅｎｕａｔｏＣｈｏｉｓｙ,ａｑｕａｆｏｌｉｉｓｃａｕｌｉｎｉｓｍａｊｏｒｉｂｕｓ,ｏｂｌｏｎｇｏ ｌａｎｃｅｏｌａｔｉｓ,ｐａｐｉｌｌｉｓｍｉｎｏｒｉｂｕｓｄｅｎｓｅｏｂｔｅｃ ｔｉｓ;ｃａｕｌｉｂｕｓｎｅｃｐｏｒｃａｔｉｓｎｅｃｎｉｇｒｏ ｇｌａｎｄｕｌｏｓｉｓ;ｓｔｙｌｉｓｏｖａｒｉｏｓｅｍｐｅｒ 4 ｐｌｏｌｏｎｇｉｏｒｉｂ…     

发育和早萌中花生胚胚轴一子叶内BAPAase活性的差异

花生胚发育过程中,子叶和胚轴中都出现ＢＡＰＡａｓｅ活性,花生种子明发时,子叶和胚轴中的ＢＡＰＡａｓｅ活性迅速上升,子叶中无新的ＢＡＰＡａｓｅ合成,胚轴中能重新合成ＢＡＰＡａｓｅ。ＡＢＡ抑制子叶和胚轴中ＢＡＰＡａｓｅ的活性,抑制胚轴中ＢＡＰＡａｓｅ活性所需的外源ＡＢＡ浓度更高,Ａｃｔ＝Ｄ和ＣＨＭ不能逆ＡＢＡ对ＢＡＰＡａｓｅ活性的抑制作用。     

横断山地区的伏绕眼果蝇亚属及三新种

本文记述分布在中国樱花断山地区绕眼果蝇属伏绕眼果蝇亚属「Ａｍｉｏｔａ（Ｐｈｏｒｔｉｃａ）」的１１个物种,其中包括３个新种,不对称绕眼果蝇Ａ．（Ｐ．）ａｃｏｎｇｒｕｅｎｓ ｓｐ．ｎ．、突绕眼果蝇Ａ．（Ｐ．）ｐｒｏｔｒｕｓａ ｓｐ．ｎ．、韩氏绕眼果蝇Ａ．（Ｐ．）ｈａｎｉ ｓｐ．ｎ。     

Scomberomorocotyle munroi n. g., n. sp. (Scomberomorocotylinae n. subf.), a thoracocotylid monogenean from Scomberomorus munroi (Scombridae) off Australia and Papua New Guinea

Scomberomorocotyle munroi n. g., n. sp. is described from the gills of Scomberomorus munroi, a Spanish mackerel from the coasts of northern Australia and southern Papua New Guinea. The genus belongs to the suborder Gastrocotylinea because a pair of basal accessory sclerites is present in the clamps. However, the worm does not belong to any of the eight gastrocotylinean families as they are currently recognised. The worm appears to be a member of the Thoracocotylidae, in that the male copulatory organ has relatively weakly developed spines, and that the haptor is one-sided with two rows of clamps. However, the worm differs from all thoracocotylids in that the clamps lack the characteristic lateral rib-like thickenings. To accommodate the new genus and species, the diagnosis of the Thoracocotylidae Price is amended to include worms lacking ribs in their clamps, and a new subfamily, the Scomberomorocotylinae n. subfam., is erected; a key to the four subfamilies which we recognise as valid is provided.     

Cardicola beveridgei n. sp. (Digenea: Aporocotylidae) from the mangrove jack,Lutjanus argentimaculatus (Perciformes: Lutjanidae), and C. bullardi n. sp. from the Australian spotted mackerel,Scomberomorus munroi (Perciformes: Scombridae), from the northern Great Barrier Reef

Cardicola Short, 1953 is a genus of the Aporocotylidae Odhner, 1912 (Digenea), with 25 currently recognised species described from 32 species of Perciformes and Mugiliformes fishes around the world, including eight species from the Great Barrier Reef. Here, we describe two new species from this region, namely Cardicola beveridgei n. sp. from the ventricle and atrium of the mangrove jack, Lutjanus argentimaculatus (Forsskål) (Perciformes: Lutjanidae), and Cardicola bullardi n. sp. from the ventricle of the Australian spotted mackerel, Scomberomorus munroi Collette & Russo (Perciformes: Scombridae), from off Lizard Island, Queensland, Australia. These two new species are most easily distinguished from the 25 current members of Cardicola in having the combination of i) a spinous oral sucker, ii) an anteriorly intercaecal ovary, iii) a uterus that extends anteriorly from the oötype, iv) the number of spines per ventrolateral transverse row, and in v) body size and the length/width ratio, vi) the oesophagus and caecal length(s) relative to body total length, vii) the length of the posterior caeca relative to the anterior pair, viii) the testis length/width ratio and its total size relative to that of the body, ix) the postovarian field as a percentage of body length, and x) egg size. In addition, C. beveridgei n. sp. is further differentiated by possessing a female genital pore that opens anterodextral to the male pore while C. bullardi n. sp. differs further in possessing a testis that is almost entirely intercaecal and does not extend anteriorly to the level of the intestinal bifurcation. Employing genetic analysis of ITS2 rDNA sequence data, representing these species and a further 13 recognised and three putative species of Cardicola, we were able to unequivocally confirm these specimens as distinct (9–22% different over 420 nucleotide positions). Distance analysis of ITS2 showed that i) species of Cardicola from the Siganidae formed a monophyletic clade, to the exclusion of other Cardicola species reported from the Scombridae, Sparidae, Lutjanidae and Chaetodontidae, ii) a general phylogenetic isolation exists between the species of Cardicola reported from scombrid fishes, and iii) C. beveridgei n. sp. and Cardicola milleri Nolan & Cribb, 2006 from lutjanids and Cardicola chaetodontis Yamaguti, 1970 from chaetodontids are phylogenetically close, despite the evolutionary remoteness between the host groups and their highly disparate biology. Given the likelihood of many additional species being attributed to Cardicola, we predict that continued molecular analyses will indicate that this genus will prove to incorporate a series of radiations in association with particular fish taxa as well as evidence of host-switching. (Nucleotide sequences reported in this paper are available in the GenBank database under accession no. KF752497).     

Brachyptera Group. Sp.32. C. Brachyptera. Sp.33. C.c RUFA. Sp.34. C. Troglodytes. Sp.35. C. Fulvicapilla.

A part from considerations as to where it is best wedged into the linear sequence, the brachyptera group is defined in general terms as a compact group of four small or very small species which resemble one another in many important specific characters and the other thirty-six species classified here as Cisticola in so many ways of form, coloration and behaviour as to make them best understood by classifying them also under that generic name.     

Robusta-Natalensis Pair. Sp. 30. C. Robusta. Sp.31. C. Natalensis.

T he two giants of the genus-that is so far as the cock birds are concerned, but, as with chiniana and a few others, their hens are so much smaller that even when in the field the two sexes are seen in company one may often doubt their being a pair of the same species.