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Two newSalmonella types isolated from patients in the Netherlands are described:S. zuilen (1, 2, 19: i: 1. w) andS. alexanderpolder (8: c: 1. w). 相似文献
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Partha Sarathi Guin Saurabh Das P.C. Mandal 《Journal of inorganic biochemistry》2009,103(12):1702-1710
Copper(II) forms a complex with sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate (sodium quinizarin-2-sulphonate, NaQSH2), an analogue of the core unit of anthracycline antibiotics used in the treatment of cancer. The 1:2 metal-ligand complex is formed in aqueous solution at neutral and acidic pH while in alkaline pH both 1:1 and 1:2 species are formed. The effective stability constant of the 1:2 metal-ligand complex is 9.64 × 1016 while that of the 1:1 metal-ligand complex is 9.4 × 109. The 1:2 complex Cu(NaQSH)2(H2O)2 was synthesized and characterized by different techniques in solid state and in solution. The complex Cu(NaQSH)2(H2O)2 interacts with calf thymus DNA which was studied by fluorescence spectroscopy. The binding constant and site size for the interaction with DNA were determined. 相似文献
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CHARLES‐ANTOINE DEDRYVER JEAN‐FRANÇOIS LE GALLIC FRÉDÉRIQUE MAHÉO NICOLAS PARISEY DENIS TAGU 《Ecological Entomology》2012,37(4):293-299
1. To explore the possible causes of apparent changes in reproductive mode from obligate to cyclical parthenogenesis over time in recombinant clones of the aphid Sitobion avenae Fabricius, all F1 progenies from various crosses were tested for several consecutive years for sexual morph production, after several weeks' exposure to a short photoperiod. 2. Variable proportions of the F1 progenies from selfing and outcrossing holocyclic clones did not produce mating females when induction was attempted in the year of hatching, but only after further induction, the following year or after. This ‘delayed setting of the photoperiodic response’ (DSPR) was much stronger in recombinants from crosses involving only clones from oceanic regions than in those involving one clone from a region with a continental climate. 3. F1 progenies resulting from crosses between one holocyclic and one intermediate clone did not show DSPR. It appeared again in the F2. 4. DSPR preferentially affected the latest hatched clones in a given progeny. 5. This phenomenon is neither an experimental artefact nor as a result of clone contamination. It appears to be because of a genetically controlled quantitative trait affecting the length of the ‘interval timer’, and may represent an adaptation of holocyclic aphid clones from oceanic regions to unpredictable winter climates. 相似文献
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Wiloso Edi Iswanto Sinke Pelle Muryanto Setiawan Arief Ameir Rahman Sari Ajeng Arum Waluyo Joko Putri Ary Mauliva Hada Guinée Jeroen 《The International Journal of Life Cycle Assessment》2019,24(11):1948-1961
The International Journal of Life Cycle Assessment - Tempeh is a traditional Indonesian fermented soybean product, which plays an essential role in its culture and economy and forms an important... 相似文献
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