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1.
The species belonging to Tychus rufus group are revised. Eleven species are recognized, described and illustrated and a key to their identification is provided. Nine taxa are new to science: Tychus carpathius n. sp. from Karpathos island (Greece); T. torticornis n. sp. from Lesbos Island (Greece); T. pisidicus n. sp. and T. inermis n. sp. from southwestern Turkey; T. antiocheus n. sp. and T. effeminatus n. sp. from southeastern Turkey; T. artvinensis n. sp. from northeastern Turkey, and T. sidonicus n. sp. and T. libanus n. sp. from Lebanon.  相似文献   

2.
A group of 10 species belonging to the Neotropical tribe Acratini Alonso-Zarazaga, Lyal, Bartolozzi & Sforzi 1999, is shown to be monophyletic by a phylogenetic analysis based on 48 morphological characters. A new genus, Pertusius n. gen., is described, based on three derived characters of external and genital morphology: venter of prorostrum of males with fine median longitudinal carina, base of elytra with deep pit at the place of insertion on mesonotum, and proximal sclerite of endophallus more or less horseshoe-shaped. Eight species were previously known and, according to former authors, belonged to the genera Acratus Lacordaire 1865 [Pertusius apicalis (Sharp 1895), n. comb., P. errabundus (Kleine 1927), n. comb., P. extrarius (Kleine 1927), n. comb., P. fidus (Kleine 1927), n. comb. and P. telesi (Soares & Meyer 1959), n. comb.] and Proteramocerus Kleine 1921 [Pertusius chalcites (Perty 1832), n. comb., P. filum (Sharp 1895), n. comb., and P. laevis (Germar 1824), n. comb.]. Four new synonymies are proposed: Proteramocerus disparilis Soares & Dias 1971, n. syn. for Acratus apicalis Sharp 1895; Teramocerus laevigatus Boheman 1840, n. syn. for Arrhenodes chalcites Perty 1832; Acratus extraordinarius Kleine 1927, n. syn. for Acratus errabundus Kleine 1927; Proteramocerus diringshofeni Soares & Dias 1971, n. syn. for Acratus filum Sharp 1895. Two new species are described: Pertusius guyanensis n. sp. from French Guiana, and P. mexicanus n. sp. from Mexico (Yucatán Peninsula). Pertusius apicalis is newly cited from Bolivia and Peru, P. chalcites from Argentina and Paraguay, P. extrarius from Ecuador, P. fidus from Peru and P. telesi from Trinidad and Tobago and Venezuela. An identification key to species of the genus is provided.  相似文献   

3.
Four new species are described and discussed: from BoliviaM. (sect.Habbasia ser.Setosae)huanchacae; from SE brazilM. (sect.Habbasia ser.Pachycarpae)chiliomera andM. (sect.Mimosa)murex; and from EcuadorM. (sect.Mimosa subser.Polycarpae)Loxensis. The two Brazilian species are illustrated.  相似文献   

4.
Four (14) new and seven known limonoids were isolated from the EtOH extract of the fruits of Melia toosendan. The structures of the new compounds were established on the basis of spectroscopic methods to be 12-O-methyl-1-O-deacetylnimbolinin B (1), 12-O-methy-1-O-tigloyl-1-O-deacetylnimbolinin B (2), 12-O-ethylnimbolinin B (3), and 1-O-cinnamoyl-1-O-debenzoylohchinal (4). Additionally, two new tirucallane-type triterpenoids, named meliasenins S (5) and T (6), were obtained from the same fractions during purification of the limonoids.  相似文献   

5.
Five species of the Catops fuscus species group are reported from China. Three species are newly described: C. hlisnikovskyi n. sp. from the Beijing municipality and Jiangsu province, C. schuelkei n. sp. from Sichuan and Yunnan provinces, and C. smetanai n. sp. from Sichuan and Yunnan provinces. Female of C. sasajii Nishikawa 2007 is described and the species is reported from Hubei, Sichuan and Yunnan provinces for the first time. Catops nigricans (Spence 1813) is reported for the first time from China (Xinjiang Uygur autonomous region). Important morphological characters are illustrated and the distribution of all species in China is mapped. Preliminar phylogenetic analysis separates (C. hlisnikovskyi n. sp.+C. fuscus fuscus Panzer 1794) as a sister clade to C. nigricans+(C. sasajii+(C. schuelkei n. sp.+C. smetanai n. sp.)), with C. paramericanus Peck & Cook 2002 as outgroup.  相似文献   

6.
苦槛蓝叶中的黄酮类化合物   总被引:2,自引:0,他引:2  
为了解苦槛蓝(Myoporum bontioides A.Gray)的化学成分,采用色谱分离技术从苦槛蓝叶片中分离得到11个黄酮类化合物。通过波谱分析,他们的结构分别鉴定为:桔皮素(1)、甜橙素(2)、5,4′-二羟基-6,7,8,3′-四甲氧基黄酮(3)、4′,5,7,8-四甲氧基黄酮(4)、去甲基川陈皮素(5)、5-羟基-6,7,3′,4′-四甲氧基黄酮(6)、3′,4′,5,6,7,8-六甲氧基黄酮(7)、二氢山柰酚(8)、木犀草素(9)、3′,4′,5,7-四羟基-3-甲氧基黄酮(10)和芹黄素(11)。除化合物9之外,其他化合物均为首次从苦槛蓝叶片中分离得到。孢子萌发法测定结果表明,化合物1,2,8和9对香蕉炭疽菌(Colletotrichum musae)具有较好的抑菌活性。这为苦槛蓝叶片中有效成分的利用提供了理论依据。  相似文献   

7.

A new ichnospecies of Arthrophycus Hall 1852, A. minimus , is described from Upper Cambrian-Lower Tremadocian, shallow-marine strata of northwest Argentina. This new ichnospecies consists of small, long, regularly annulated hypichnial elements displaying subcircular to squarish cross-section and a ventral median groove. Side branches are occasionally present, but palmate, fan-like structures and scribbling patterns are absent. We adopt a relatively narrow diagnosis of Arthrophycus , suggesting that roughly annulated, cylindrical structures should not be included in this ichnogenus, unless other diagnostic features (i.e., squarish cross-section, median groove, zipper-like annulations) are also present. Arthrophycus is a common ichnotaxon in Ordovician-Silurian shallow-marine siliciclastic environments. Post-Paleozoic occurrences are removed from Arthrophycus . Arthrophycus has been proposed as a biostratigraphic index fossil in Ordovician-Silurian rocks. The presence of A. minimus in the Santa Rosita Formation of northwest Argentina indicates that Arthrophycus ranges at least from the Upper Cambrian-Lower Tremadocian with probable representatives in the Lower Cambrian and, therefore, its biostratigraphic utility is extended. Arthrophycus minimus represents the first Cambrian occurrence exhibiting not only fine, diagnostic morphologic features, but also the classical Arthrophycus behavioral pattern in dense monoichnospecific assemblages. The exploratory behavioral pattern displayed by A. minimus is simpler than that of the younger ichnospecies, particularly A. brogniartii, A. alleghaniensis, and A. lateralis . This is consistent with the basal position of A. minimus within the arthrophycid lineage.  相似文献   

8.
为了解喙果皂帽花(Dasymaschalon rostratum)根的化学成分,采用多种色谱技术从其根的乙醇提取物中分离得到8个化合物。通过波谱数据分析,分别鉴定为:花旗松素(1)、(+)-儿茶素(2)、毛蕊异黄酮(3)、(-)-丁香树脂酚(4)、(-)-皮树脂醇(5)、lirioresinol A(6)、N-反式肉桂酸酰对羟基苯乙胺(7)和羟基酪醇(8)。所有化合物均为首次从该植物中获得。化合物1~8均无明显抗菌活性。  相似文献   

9.
?????? 目的 探讨非惩罚性报告系统在护士给药错误管理中的应用效果。方法 回顾性分析某三级乙等综合性医院2006—2012年给药错误报告资料,对实施非惩罚性报告系统前后给药错误的报告和管理情况进行系统的总结和分析。结果 自2008年建立了非惩罚性报告系统以来,护士给药错误报告意识增强,漏报率下降,报告及时性提高,报告人群从护士长普及到临床一线护士,同类给药错误事件发生率下降。结论 建立非惩罚性报告系统,增强护士给药错误的报告意识,护理管理人员能够获得真实数据和信息。  相似文献   

10.
11.
Lu  Chunhua  Xie  Fei  Shan  Chuan  Shen  Yuemao 《Applied microbiology and biotechnology》2017,101(6):2273-2279

Two novel cyclic hexapeptides designated actinosynneptides A (1) and B (2), together with three tryptophan containing diketopiperazines, namely cyclo(L-Trp-L-Trp) (3), cyclo(L-Trp-N-MeL-Trp) (4), and cyclo(N-MeL-Trp-N-MeL-Trp) (5), were isolated from the culture of the genetically engineered strain HGF052::asm18 derived from Actinosynnema pretiosum ATCC31565. Their structures were elucidated on the basis of spectroscopic analyses and single-crystal X-ray diffractions. Compound 1 is the first example of 3-amino-6-hydroxy-2-piperidone-containing cyclic peptides, and 1 and 2 showed moderate cytotoxic activities against HeLa and PC3 cell lines.

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12.
It was suggested that the abnormally high N 2 O values found in 130,000–160,000 year-old Vostok ice core samples, characterized by high δ 15 N and low δ 18 O values, resulted from in situ microbial N 2 O production. To substantiate these observations we obtained new geochemical data from the last glacial period and showed the existence of additional small N 2 O anomalies. To test the hypothesis that microbial metabolism could contribute to these anomalies, we developed protocols for examining the ability of Nitrosomonas cryotolerans cells to produce N 2 O at subfreezing temperatures. Our results show that these model, frozen cultures produce N 2 O at temperatures as low as ?32°C.  相似文献   

13.
14.
Twelve morphologically similar species of Acrapex Hampson 1894, (Lepidoptera, Noctuidae, Noctuinae, Apameini, Sesamiina), from Western, Central and Eastern Africa are reviewed. Eight of these species are new to science and are described: Acrapex akunamatata n. sp. and A. incrassata n. sp. from Kenya; A. gracilis n. sp., A. iringa n. sp., A. lukumbura n. sp. and A. rungwe n. sp. from Tanzania; A. soyema n. sp. from Ethiopia; and A. zoutoi n. sp. from Benin. All 12 species belong to a species complex that we hereby define as the Acrapex apicestriata group. Host-plants for three of the new species are recorded: Setaria incrassata (Hochst.) Hack. for Acrapex incrassata; Cymbopogon pospishilii (K. Schum.) C.E. Hubb. for A. rungwe; and Andropogon perligulatus Stapf. for A. zoutoi. We also conducted molecular phylogenetic analyses (using maximum likelihood and Bayesian inference) on a six gene multimarker molecular dataset (four mitochondrial and two nuclear gene fragments; 4581 nucleotides in length) consisting of 15 Acrapex species (including seven species from the apicestriata group) and four outgroups species from the subtribe Sesamiina (from genera Busseola Thurau 1904, Sciomesa Tams & Bowden 1953, Pirateolea Moyal, Le Ru, Conlong, Cugala, Defabachew, Matama-Kauma, Pallangyo & Van den Berg 2010 and Sesamia Boisduval & Guenée 1852). Both maximum likelihood and Bayesian inference analyses yield a similar and well-supported topology, which supports the monophyly of the apicestriata group.  相似文献   

15.
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17.

During a research on gill ectoparasites of callichthyids fishes from the Peruvian Amazonia, the following monogenoideans were found: Philocorydoras peruensis n. sp. from Corydoras splendens (Castelnau); Philocorydoras multiradiatus n. sp. and Philocorydoras jumboi n. sp. from Brochis multiradiatus (Orcés, V.). All new species described herein are mainly differentiated from their congeners based on the morphology of the copulatory complex. In P. peruensis n. sp. the cirrus is “J”-like shaped tube slightly tilted to one side, while in P. jumboi n. sp. is “J”-like shaped tube in a straight position and in P. multiradiatus n. sp. the cirrus is an arced tube with inflated base and distally narrow. Brochis (Orcés, V.) represents a new genus hosting species of Philocorydoras. All new species presented in this work represent the first species of Philocorydoras reported for Peru.

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18.
【目的】研究一株西北太平洋深海沉积物来源真菌Aspergillus jensenii LW128的次级代谢产物及其抗菌活性。【方法】利用硅胶柱色谱(silica gel column chromatography)、凝胶柱色谱(Sephadex LH-20 column chromatography)和反相高效液相色谱(reversed-phase high-performance liquid chromatography, RP-HPLC)等方法对菌株的发酵粗提物进行分离纯化得到单体化合物;将核磁共振波谱(nuclear magnetic resonance, NMR)、质谱(mass spectrometry, MS)数据与相关文献报道数据进行比对后确定化合物结构;采用肉汤微量稀释法测定化合物的抗菌活性。【结果】从海洋真菌Aspergillus jensenii LW128中分离并鉴定了10个已知化合物,分别为diorcinol D(1)、diorcinol K(2)、diorcinol I(3)、(+)-(7S)-7-O-methylsydonic acid (4)、(+)-s...  相似文献   

19.
Abstract

Jutta Ash (from a Crimm tale), RAPUNZEL, Holt, Rinehart & Winston: New York, 1982, unpaged, $10.95

Lorinda B. Cauley, THE GOOSE AND THE GOLDEN COINS, Harcourt Brace Jovanovich: New York, 1981, unpaged, $11.95 ($5.95 paper). Reviewed by Kenneth Marantz.

Graham Percy (adapted from Perrault), SLEEPING BEAUTY, Knopf: New York, 1980, unpaged, $1.75 (boards). Reviewed by Kenneth Marantz.

George Overlie (story by Pamela Espeland), THE STORY OF BAUCIS AND PHILOMON, Carolrhoda Books: Minneapolis, 1981, unpaged, n.p.i. Reviewed by Kenneth Marantz.

Michael Hague (retold by K. & M. Hague), THE MAN WHO KEPT HOUSE, Harcourt Brace Jovanovich: New York, 1981, unpaged, $11.95. Reviewed by Kenneth Marantz.

Donald Carrick, HARALD AND THE GIANT KNIGHT, Clarion Books: New York, 1982, unpaged, $10.95. Reviewed by Kenneth Marantz.

Annie Gusman (written by Arthur Crowley), THE WAGON MAN, Houghton Mifflin: Boston, 1981, unpaged, $8.95. Reviewed by Kenneth Marantz.

Diane Good (story by Louise Moeri), THE UNICORN AND THE PLOW, Dutton: New York, 1982, unpaged, $8.95. Reviewed by Kenneth Marantz.

Victoria Chess (story by Larry Bograd), LOST IN THE STORE, Macmillan: New York, 1981, unpaged, $8.95. Reviewed by Kenneth Marantz.

Edward Gorey (story by Florence P. Heide), TREEHORN'S TREASURE, Holiday House: New York, 1981, unpaged, $7.95. Reviewed by Kenneth Marantz.

Ernest Goldstein, EDWARD HICKS: THE PEACEABLE KINGDOM and WINSLOW HOMER: THE GULF STREAM, Garrard Publishers: Champaign, Illinois, 1982, 48 pages, $8.95 (each) from the “Let's Get Lost in a Painting” series. Reviewed by Kenneth Marantz.  相似文献   

20.
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