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901.
Nina Springer Wolfgang Ludwig Wincentry Droaski Rudolf Amann Karl Heinz Schleifer 《FEMS microbiology letters》1992,96(2-3):199-202
A 16S rRNA gene of the obligate intracellular bacterial parasite Sarcobium lyticum was amplified using the polymerase chain reaction in combination with site-specific primers. The amplified DNA was cloned, sequenced and compared with other bacterial 16S rRNA sequences. The analysis revealed that S. lyticum belongs to the gamma subclass of the Proteobacteria and shows the closest relationship to an intracellular Legionella species recovered by amoebal enrichment from the sputum of a patient with pneumonia. S. lyticum could be detected in situ with a fluorescent oligonucleotide probe by whole cell hybridization. 相似文献
902.
A potassium channel gene is expressed at neural induction 总被引:2,自引:0,他引:2
A B Ribera 《Neuron》1990,5(5):691-701
903.
904.
Nina M. Boe 《The Western journal of medicine》1994,161(2):160
The Council on Scientific Affairs of the California Medical Association presents the following epitomes of progress in obstetrics and gynecology. Each item, in the judgment of a panel of knowledgeable physicians, has recently become reasonably firmly established, both as to scientific fact and clinical importance. The items are presented in simple epitome, and an authoritative reference, both to the item itself and to the subject as a whole, is generally given for those who may be unfamiliar with a particular item. The purpose is to assist busy practitioners, students, researchers, and scholars to stay abreast of progress in medicine, whether in their own field of special interest or another.The epitomes included here were selected by the Advisory Panel to the Section on Obstetrics and Gynecology of the California Medical Association, and the summaries were prepared under the direction of Dr Chang and the panel. 相似文献
905.
Matiiv Anton B. Trubitsina Nina P. Matveenko Andrew G. Barbitoff Yury A. Zhouravleva Galina A. Bondarev Stanislav A. 《Biochemistry. Biokhimii?a》2022,87(5):450-463
Biochemistry (Moscow) - Amyloids are protein aggregates with the cross-β structure. The interest in amyloids is explained, on the one hand, by their role in the development of socially... 相似文献
906.
Antun Jelinčić Nina Šajna Željka Zgorelec Aleksandra Perčin 《Journal of Plant Ecology》2022,15(4):783
欧洲蕨入侵提高了土壤磷有效性和高磷获取效率
对于欧洲蕨(Pteridium aquilinum)入侵荒地后土壤化学的变化,已经有了相关的研究,但是对于欧洲蕨入侵草地的研究却比较缺乏。本研究探讨了欧洲蕨入侵缺磷草地是否会改变土壤养分资源库,以及与土壤过程和欧洲蕨营养相关的机制。此外,还研究了欧洲蕨入侵前后群落组成对土壤化学差异的反应。在蕨菜生物量高峰期间,我们进行了土壤和植物取样以及植被调查。数据分析包括方差分析(ANOVA)和典型对应分析(CCA)。研究结果表明,欧洲蕨入侵提高了土壤磷有效性、土壤有机碳浓度以及碳氮比、碳硫比和氮硫比,同时降低了铁和钴的浓度。欧洲蕨羽片富含磷,根茎富含钾,而羽片 和根茎的氮磷比很低。典型对应分析(CCA)显示了与磷和钾有效性相关的常见草地植物物种的不同丰度模式。在磷有效性极低的条件下,绒毛草(Holcus lanatus)表现出竞争优势。欧洲蕨通过促进铁和铝的浸出提高了磷有效性。从土壤资源生态位的角度来看,欧洲蕨通过提高自身生长所需的磷有效性并且增加对其他物种的氮限制,从而获得了竞争优势。欧洲蕨提高土壤磷有效性的能力,以及其高磷获取效率背后的生理机制,似乎将欧洲蕨与其他竞争生态策略的物种区分开来,因为其他物种的生长主要局限于营养丰富的环境,因此欧洲蕨更容易入侵缺磷的草地。 相似文献
907.
de Jesus Luís Cláudio Lima de Jesus Sousa Thiago Coelho-Rocha Nina Dias Profeta Rodrigo Barroso Fernanda Alvarenga Lima Drumond Mariana Martins Mancha-Agresti Pamela Ferreira Ênio Brenig Bertram Aburjaile Flávia Figueira Azevedo Vasco 《Probiotics and antimicrobial proteins》2022,14(5):816-829
Probiotics and Antimicrobial Proteins - Lactobacillus delbrueckii subsp. lactis CIDCA is a new potential probiotic strain whose molecular basis attributed to the host’s benefit has been... 相似文献
908.
Carl Brehl Hannah U. C. Brass Clara Lüchtrath Lukas Böckmann Nina Ihling Thomas Classen Jörg Pietruszka Jochen Büchs 《Biotechnology progress》2022,38(3):e3245
The red pigment prodigiosin is of high pharmaceutical interest, due to its potential applications as an antitumor drug and antibiotic agent. As previously demonstrated, Pseudomonas putida KT2440 is a suitable host for prodigiosin production, as it exhibits high tolerance toward the antimicrobial properties of prodigiosin. So far, prodigiosin concentrations of up to 94 mg/L have been achieved in shake flask cultivations. For the characterization and optimization of the prodigiosin production process, the scattered light of P. putida and fluorescence of prodigiosin was measured. The excitation and emission wavelengths for prodigiosin measurement were analyzed by recording 2D fluorescence spectra. The strongest prodigiosin fluorescence was obtained at a wavelength combination of 535/560 nm. By reducing the temperature to 18 °C and using 16 g/L glucose, the prodigiosin concentration was more than doubled compared with the initial cultivation conditions. The obtained results demonstrate the capabilities of parallelized microscale cultivations combined with noninvasive online monitoring of fluorescence for rapid bioprocess development, using prodigiosin as a molecule of current biotechnological interest. 相似文献
909.
910.
Puspitasari Yunita Eka De Bruyne Tess Foubert Kenn Aulanni’am Aulanni’am Pieters Luc Hermans Nina Tuenter Emmy 《Phytochemistry Reviews》2022,21(4):1315-1358
Phytochemistry Reviews - Sea cucumbers or holothurians are marine invertebrates, belonging to the phylum Echinodermata (kingdom Animalia). In Asia, they are commonly used as food, while they are... 相似文献