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1.
本文记述叶蝉科拟隐脉叶蝉属3新种,即肛突拟隐叶蝉Sophonia anusuhamata sp.nov,弧纹所隐脉叶蝉Sophonia arcuata sp.nov.和黑线拟隐脉叶蝉Spphonianigrilineata sp.nov。模式标本积存在贵州农学院。  相似文献   

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河南伏牛山缘脊叶蝉亚科种类记述:同翅目:叶蝉科   总被引:3,自引:0,他引:3  
本文论述河南省伏牛山缘脊叶蝉亚科3属5种,其中包括1新属:管茎叶蝉属Fistulatus gen.nov.和3新种:中华管茎叶蝉Fistulatus sinensis sp.nov.河南胫槽叶蝉Drabescus henanensis sp.nov.细茎胫槽叶蝉Drabescus minipenis sp.nov。此外还厘订新异2个。新种模式标本分别保存在中国农业大学,中国科学院动物研究所,中山大  相似文献   

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记述脊额叶蝉属Carinata4新种,即:周氏脊额叶蝉C.choui,sp.nov.;短地蝉C.brachy furcata,sp。nov.;倒钩脊额叶蝉C.barbulata,sp.nov.及双突脊额叶蝉C.bifurca,sp。nov.模式标本分别保存在西北农业大学昆虫博物馆,中国科学院动物研究所和中山大学。  相似文献   

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脊额叶蝉属三新种:同翅目:叶蝉科:横脊叶蝉亚科   总被引:1,自引:1,他引:0  
本文记述脊额叶蝉属Carinata3新种,即枝茎脊额叶蝉C.branchera Wang et Li。sp.nov,弯突脊额叶蝉C.recurvana Wang et Li,sp.nov.一点脊额叶蝉C.unipuncta Wang etLi,sp,nov.模式标本保存在贵州农学院  相似文献   

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记述我国叶蝉科耳叶蝉亚科片头叶蝉属2新种:赤缘片头叶蝉Petalocephala rufa Cen et Cai,sp.nov.、单色片头叶蝉Petalocephala unicolor Cen et Cai,sp.nov.。新种模式标本保存在安徽农业大学昆虫标本室。  相似文献   

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记述大叶科1中国新记录属-长冠叶蝉属Stenatkina Young及1新种-双斑长冠叶蝉Stenatkina bimaculata,sp,nov.和1新种组合-角突长冠叶蝉Stenatkina angustata,comb,nov.模式标本保存在贵州大学昆虫研究所。  相似文献   

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贵州圆痕叶蝉亚科二新种(同翅目:叶蝉科)   总被引:1,自引:0,他引:1  
本文记述贵州圆痕叶蝉亚科2新种,即钩淡脉叶蝉Japanagalliahamatasp.nov.和梵净锥茎叶蝉Onukigalliafanjingensissp.nov模式标本保存在贵州农学院植物保护系。  相似文献   

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本文记述横脊叶蝉科Evacanthidae1新属,凸冠叶蝉属Convexanagen.nov.,3新种:黑额凸冠叶蝉Convexananigrifrontasp.nov.;白脊凸冠叶蝉Convexanaalbicarinatasp.nov.;红色凸冠叶蝉Convexanarufasp.nov.。详细描述新属的外部形态及雄性外生殖器特征,并与近似属OnukiaMatsumura1912相比较。  相似文献   

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本文记述微螗蝉属Gudaba一新种,长尾微螗蝉Gudabalongicaudasp.nov和中国一新纪录种gudaamaculataDistant。  相似文献   

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汪廉敏  李子忠 《昆虫分类学报》1999,21(2):105-106,110
本文记述弯头叶蝉属1新种:黑色弯头叶蝉Vangamapiceasp.nov模式标保存在贵州农学院。  相似文献   

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Replacement of two to four guanines by adenines in the human telomere DNA repeat dG3(TTAG3)3 did not hinder the formation of quadruplexes if the substitutions took place in the terminal tetrad bridged by the diagonal loop of the intramolecular antiparallel three‐tetrad scaffold, as proved by CD and PAGE in both Na+ and K+ solutions. Thermodynamic data showed that, in Na+ solution, the dG3(TTAG3)3 quadruplex was destabilized, the least by the two G:A:G:A tetrads, the most by the G:G:A:A tetrad in which the adenosines replaced syn‐guanosines. In physiological K+ solution, the highest destabilization was caused by the 4A tetrad. In K+, only the unmodified dG3(TTAG3)3 quadruplex rearranged into a K+‐dependent quadruplex form, none of the multiple adenine‐modified structures did so. This may imply biological consequences for nonrepaired A‐for‐G mutations. © 2010 Wiley Periodicals, Inc. Biopolymers 93: 880–886, 2010.  相似文献   

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Oka: Behind the Barricades. 1998. 312 minutes. For more information contact the National Film Board of Canada, 3155 Côte de Lisse Rd., St. Laurent, Quebec H4N 2N4. Series of four videos:
Kanehsatake: 270 Years of Resistance. 1993. 120 minutes. Directed by Alanis Obomsawin .
Spudwrench: Kahnawake Man. 1997. 58 minutes. Directed by Alanis Obomsawin .
My Name is Kahentiiosta. 1995. 30 minutes. Directed by Alanis Obomsawin .
Acts of Defiance. 1992. 104 minutes. Directed by Alec MacLeod .  相似文献   

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Webba da Silva M 《Biochemistry》2005,44(10):3754-3764
A template-based approach was used to design unprecedented architectural motifs into a known DNA framework. The structure formed by the sequence d(GCGGTTGGAT) in 0.1 M Na(+) solution has been determined using molecular dynamics simulations constrained by distance and dihedral restraints derived from NMR experiments. The molecular topology has been previously observed for the sequence d(GCGGTGGAT) (Webba da Silva, M. (2003) Biochemistry 42, 14356-65). Insertion of a single thymine into the double chain reversal formed by the segment GGTGG results in the unprecedented experimental demonstration of a T:(G:G:G:G):T hexad. The bi-stranded hexad results from the pairing alignment of two G(T-G) triads. Each triad results from recognition of the sheared edge of a guanine by the Watson-Crick edge of a thymine of the segment GGTTGG. The alignment is stabilized by base-stacking of the thymine to the sugar pucker of the preceding thymine. The latter is involved in formation of the T:A:A:T tetrad alignment by forming a hydrogen bond with the free amino proton of a Watson-Crick aligned A:A mispair. We have thus established that residues in double chain reversal loops linking juxtaposed tetrads of a quadruplex stem may facilitate formation of yet unknown hydrogen bond alignments. By employing a systematic approach analysis of sequence motifs appearing in double chain reversals, bridging tetrad layers should allow for the prediction of topologies and architectural motifs appearing in biologically relevant genomic regions.  相似文献   

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The putative pea PINOID homolog, PsPK2, is expressed in all growing plant parts and is positively regulated by auxin, gibberellin, and cytokinin. Here, we studied hormonal regulation of PsPK2::GUS expression compared with DR5::GUS and PID::GUS in Arabidopsis. PsPK2::GUS, DR5::GUS, and PID::GUS expression in Arabidopsis shoots is mainly localized in the stipules, hydathodes, veins, developing leaves, and cotyledons. Unlike DR5::GUS, PsPK2::GUS, and PID::GUS are weakly expressed in root tips. Both DR5::GUS and PsPK2::GUS are induced by different auxins and are more sensitive to methyl indole acetic acid, 4-chloro-indole acetic acid, and α-naphthalene acetic acid than others. GA(3) has no significant effect on GUS activity in DR5::GUS-transformed seedlings compared to the control, but induction by auxin and gibberellin in combination is synergistic. Cytokinin increases auxin transport in Arabidopsis seedlings. Auxin, gibberellin, and cytokinin all increase GUS activity in shoots of PsPK2::GUS transformed plants compared to the control. However, only auxin and gibberellin increase GUS activity in PID::GUS shoots. In conclusion, auxin, gibberellin, and cytokinin positively regulate PsPK2 expression in shoots, but not in roots. Auxin and gibberellin also upregulate AtPIN1 and LEAFY expression, which is similar to PsPIN1 and Uni in pea. With minor exceptions, the orthologous genes from both species are regulated similarly.  相似文献   

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