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891.
Cyclamen somalense
Thulin & Warfa, spec. nova, the first member of the genus known from tropical Africa, is described from the Al Miskat Mts in NE. Somalia. The new species is closely related to the E. MediterraneanC. persicum
Mill. The disjunct Mediterranean element in the mountain flora of northern Somalia, to whichC. somalense belongs, is believed to be largely a relict of Tertiary origin. 相似文献
892.
893.
Enterococcus columbae, a species from pigeon intestines 总被引:7,自引:0,他引:7
Gram-positive cocci which dominate in the intestinal flora of domestic pigeons were found to constitute a new species of the genus Enterococcus. The strains were most closely related to Enterococcus cecorum, originally described as Streptococcus cecorum, a carboxyphilic species from chicken intestines, and to Enterococcus avium. The pigeon strains resemble E. cecorum and also many E. avium strains in their lack of group D antigen and in being more sensitive to NaCl than other enterococci. The type strain is strain STR 345 (= NCIMB 13013). 相似文献
894.
895.
消室叶蝉属Chudania由Distant建立于1908年,张雅林、杨集昆(张雅林,1990)对该属作了订正,将Chudania exposita Jacobi移出本属,报道了8个新种,使本属已知种数目增加到10种。本文报道1新种西藏消室叶蝉Chudania tibeta。正模()保存在西北农业大学昆虫博物馆,副模(1)保存在北京农业大学植物保护系昆虫标本室。 相似文献
896.
Brian W. Coad 《Environmental Biology of Fishes》1988,23(1-2):115-126
Synopsis A new species of tooth-carp, Aphanius vladykovi, is described from the Zagros Mountains of Iran. The new species is uniquely characterised by a high count of lateral line scales and by different pigmentation patterns from its closest, putative relative A. sophiae. It also possesses several meristic and morphometric differences with topotypic A. sophiae. It became separated from a common ancestor with A. sophiae by orogenic events which led to the formation of the Zagros Mountains and the isolation of the upper reaches of the Karun River basin by the development of tangs, narrow passes through the mountains with high water flow and steep gradient which prevent gene flow between lowland and mountain populations of these small fishes. 相似文献
897.
Stefano Ventura Roberto De Philippis Riccardo Materassi Waldemaro Balloni 《Archives of microbiology》1988,149(4):273-279
Two strains belonging to the genus Ectothiorhodospira were isolated from enrichment cultures inoculated with sulfide-containing samples from the saltern of Trapani. Cells are motile short spirilla with internal stacks of membranes. During sulfide utilization they produce external globules of sulfur that are then completely oxidized to sulfate. These halophilic microorganisms need NaCl concentrations of 11% and 18% and a slightly alkaline pH. They are typical photoautotrophic bacteria, utilizing sulfide, sulfur and, only one of them, thiosulfate as photosynthetic electron donors; growth is stimulated by organic compounds. Neither of the two strains is capable of assimilatory sulfate reduction and neither grows in the dark. Pigments of the two strains are bacteriochlorophyll a and carotenoids of the normal spirilloxanthin series subgroup 1B. Quinones are Q8 and MK8 in a strain and Q8 and MK7 in the other one: the latter situation, with quinone side chains of different lengths, is atypical within phototrophic bacteria. For morphological, physiological and biochemical characters, at least one of these strains clearly stays apart from the six Ectothiorhodospira species described until now.List of abbreviations HPLC
high performance liquid chromatography
- TLC
thin layer chromatography
- Qn
ubiquinone—number of isoprenoid units of the side chain
- MKn
menaquinone—number of isoprenoid units of the side chain
- Rt
retention time
- Rf
retention factor
Dedicated to the memory of Professor Gino Florenzano who inspired this work 相似文献
898.
Abstract Taxonomic studies were performed on some Gram-positive asporogeneous rod-shaped bacteria isolated from human skin. On the basis of biochemical and chemical characteristics the cutaneous strains differ from all taxa described to date. It is proposed that these organisms be classified in a new genus Dermabacter , as Dermabacter hominis gen.nov., sp.nov. 相似文献
899.
A new species of Anteon Jurine, 1807 is described from Laos, Houaphanh Province: Anteon
holzschuhi
sp. n. Morphologically the new species is similar to Anteon
semipolitum Olmi, 2008, but it is distinguished by the sculpture of the face partly reticulate rugose and partly with deep punctures similar to areolae; in Anteon
semipolitum the face is completely punctate and unsculptured among punctures. In addition, in the new species the distance from the outer edge of a lateral ocellus to the compound eye (OOL) is about 3.3 times as long as the distance between the inner edges of a lateral ocellus and the median ocellus (OL); in Anteon
semipolitum
OOL is less than twice as long as OL. Published identification keys to the Oriental species of Anteon are modified to include the new species. 相似文献
900.
Richard L. Pyle 《ZooKeys》2016,(550):261-281
For more than 250 years, the taxonomic enterprise has remained almost unchanged. Certainly, the tools of the trade have improved: months-long journeys aboard sailing ships have been reduced to hours aboard jet airplanes; advanced technology allows humans to access environments that were once utterly inaccessible; GPS has replaced crude maps; digital hi-resolution imagery provides far more accurate renderings of organisms that even the best commissioned artists of a century ago; and primitive candle-lit microscopes have been replaced by an array of technologies ranging from scanning electron microscopy to DNA sequencing. But the basic paradigm remains the same. Perhaps the most revolutionary change of all – which we are still in the midst of, and which has not yet been fully realized – is the means by which taxonomists manage and communicate the information of their trade. The rapid evolution in recent decades of computer database management software, and of information dissemination via the Internet, have both dramatically improved the potential for streamlining the entire taxonomic process. Unfortunately, the potential still largely exceeds the reality. The vast majority of taxonomic information is either not yet digitized, or digitized in a form that does not allow direct and easy access. Moreover, the information that is easily accessed in digital form is not yet seamlessly interconnected. In an effort to bring reality closer to potential, a loose affiliation of major taxonomic resources, including GBIF, the Encyclopedia of Life, NBII, Catalog of Life, ITIS, IPNI, ICZN, Index Fungorum, and many others have been crafting a “Global Names Architecture” (GNA). The intention of the GNA is not to replace any of the existing taxonomic data initiatives, but rather to serve as a dynamic index to interconnect them in a way that streamlines the entire taxonomic enterprise: from gathering specimens in the field, to publication of new taxa and related data. 相似文献