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Trampe, Erik,Hansen, Per Juel,Kuhl, Michael The Korean Society of Phycology 2015 ALGAE Vol.30 No.2
Photosynthetic rates of the large centric diatom Coscinodiscus granii were measured by means of multicolor variable chlorophyll fluorescence imaging, single cell $^{14}C$ assimilation, and optical $O_2$ sensor measurements during light acclimatization of cultures grown at five different irradiances: 50, 150, 235, 332, and $450{\mu}mol$ photons $m^{-2}\;s^{-1}$. Photo-acclimatization was evident from changes of cellular chlorophyll a content, growth rates, and light response curves. Each of the applied methods evaluates different parts and reactions in the photosynthetic apparatus, which makes a direct quantitative comparison of rates difficult, although a different degree of correlation were found between all three methods. However, when used in combination, they provide information about the internal relationship of photosynthetic pathways as well as the variation in photosynthetic capacity between individual cells within a single algal culture.
Erik Trampe,Per Juel Hansen,Michael Kühl 한국조류학회I 2015 ALGAE Vol.30 No.2
Photosynthetic rates of the large centric diatom Coscinodiscus granii were measured by means of multicolor variable chlorophyll fluorescence imaging, single cell 14C assimilation, and optical O2 sensor measurements during light acclimatization of cultures grown at five different irradiances: 50, 150, 235, 332, and 450 μmol photons m-2 s-1. Photo-acclimatization was evident from changes of cellular chlorophyll a content, growth rates, and light response curves. Each of the applied methods evaluates different parts and reactions in the photosynthetic apparatus, which makes a direct quantitative comparison of rates difficult, although a different degree of correlation were found between all three methods. However, when used in combination, they provide information about the internal relationship of photosynthetic pathways as well as the variation in photosynthetic capacity between individual cells within a single algal culture.
Alexander Mischnik,Marlies Trampe,Stefan Zimmermann 대한진단검사의학회 2015 Annals of Laboratory Medicine Vol.35 No.2
This erratum is being published to correct the printing error on pages 82 and 88 of the article entitled ‘Evaluation of the Impact of Automated Specimen Inoculation, Using Previ Isola, on the Quality of and Technical Time for Stool Cultures’ by Alexander Mischnik, Marlies Trampe, and Stefan Zimmermann in Ann Lab Med 2015;35:82-8, DOI 10.3343/alm.2015.35.1.82 as follows.
Alexander Mischnik,Stefan Zimmermann,Marlies Trampe 대한진단검사의학회 2015 Annals of Laboratory Medicine Vol.35 No.1
Background: This study was designed as a quasi-experiment to evaluate automatic inoculation of fecal specimens, using the automated specimen inoculator Previ Isola (bioMérieux, France). Methods: We evaluated the quality of cultures, recovery rates of enteropathogenic bacteria (Salmonella, Shigella, Campylobacter, and Yersinia species), and cost-effectiveness in terms of technical time. The Previ Isola recovery rates for the two-year period from August 2009 to July 2011 were compared with historical manual inoculation data of the previous two years (August 2007 to July 2009). The regional (Baden-Württemberg) and nationwide (Germany) trends of recovery rates for this four-year period were referred. Results: A total of 5,884 fecal specimens were collected over the study period. Most positive cultures were for Salmonella, followed by Campylobacter. Compared with the historical data, the numbers of Campylobacter-positive specimens for a year between August and July were increased significantly, from 19 in 2007-2008 and 10 in 2008-2009 to 32 in 2009-2010 (P=0.002) and 32 in 2010-2011 (P=0.003), respectively. During the study period, the official data for our region and nationwide did not show this increase in the recovery rate of Campylobacter. For Salmonella, Shigella, and Yersinia, no significant changes were observed. Compared with manual inoculation, the mean hands-on time with Previ Isola inoculation was significantly shortened, from 37:30 min to 8:42 min per 15 fecal specimens. Conclusions: Inoculation by Previ Isola improves the quality of routine culture of fecal specimens, with better sensitivity for Campylobacter and less hands-on time.