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Leica M205 FCA & Leica M205 FA Research stereos

Fluorescence stereo microscopes Leica M205 FCA & Leica M205 FA

Real Time Observation of Neutrophil White Blood Cell Recruitment to Bacterial Infection In Vivo

The zebrafish (Danio rerio) is an emerging vertebrate model organism to study infection. The transparent larva comprises a fully functional innate immune system and enables live imaging of fluorescent immune cells in transgenic animals. Zebrafish infection models have been developed for both the human bacterial pathogen Shigella flexneri and the natural fish bacterial pathogen Mycobacterium marinum. Importantly, whilst S. flexneri causes acute infection and is typically used as an inflammatory paradigm, M. marinum causes a chronic disease similar to tuberculosis in humans. Here, we use real time fluorescence microscopy to image transgenic zebrafish larvae with neutrophils (granulocyte white blood cells) expressing the green fluorescent protein eGFP.

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Work More Efficiently in Developmental Biology With Stereo Microscopy: Zebrafish, Medaka, and Xenopus

Among the aquatic model organisms used in molecular and developmental biology the most prominent are the zebrafish (genus species: Danio rerio), medaka or japanese rice fish (genus species: Oryzias latipes), and african clawed frog (genus species: Xenopus laevis). This report gives useful information to scientists and technicians which can help improve their daily laboratory work by making the steps of transgenesis, fluorescent screening, and functional imaging more efficient.

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How to Correct Aberration in Stereo Microscopy by Using the Right Objective Lenses

For samples/specimens immersed in a liquid or embedded in a polymer, high quality microscopic observation can be hindered as a result of spherical aberration. An objective which can correct for refractive index mismatch allows images with greatly reduced spherical aberration and sharper focus to be obtained.

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C. Elegans

Work Efficiently in Developmental Biology with Stereo and Confocal Microscopy: C. elegans

For scientists, technicians, and teachers working with the worm C. elegans in the research lab or classroom, this report is intended to give useful information to help improve their daly work. The aim is to make the work steps of worm picking, transgenesis, RNA interference, screening, and functional imaging efficient. It also details the various possibilities for equipping a research worm lab or biology classroom/teaching lab explaining worm methods.

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Work More Efficiently In Developmental Biology With Stereo Microscopy: Fruit Flies (Drosophila Melanogaster)

For scientists and technicians working with fruit flies, most often genus Drosophila, this report is intended to give useful information to help improve daily laboratory work by making the steps of fly pushing, fluorescent screening, dissection, and documentation/imaging more efficient. It also details various possibilities for properly equipping or stocking a fly lab.

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