Scanning electron microscopic image of cells of E. coli type strain DSM 30083T (courtesy of Manfred Rohde, Helmholtz Centre for Infection Research; Christine Rohde, Leibniz Institute DSMZ)
Rhodotorula minuta (pink-coloured), DSM 29047), Cryptococcus albidus (white coloured, DSM 29048), Rhodotorula sp. (orange coloured, DSM 29049)
We are champion - FIFA World Cup 2014
Microsporum canis DSM10708, Propionibacterium acnes DSM 1897, Micrococcus luteus DSM 20030
Desulfotomaculum nigrificans (DSM 574), gram-positive, obligately anaerobic soil bacteria, 55°C , originally described as “Clostridium nigrificans” by Werkman and Weaver (1927), Genbank CP002736 DSMZ/JGI/Wageningen University, SIGS March 2014
DSM 74 Spirosoma linguale, isolated from laboratory waterbath by D. Claus. Genbank accession numbers: CP001769-77 DSMZ/JGI SIGS 2010
Girl's and Boys' Day 2014: E.coli (indicator medium) (@DSMZ/AG Identifizierung)
Propionibacterium acnes DSM 1897 is the relatively slow-frowing, typically aerotolerant anaerobic Gram-positive bacterium (rod), linked to the skin condition acne. (@DSMZ /Rüdiger Pukall)
Thiothrix lacustris DSM 21227 (@DSMZ), filamentous sulfur-oxidizing bacteria. Sulfur is deposited in invaginations within the cell membrane.
Lamprocystis purpurea is, as the name might indicate, a purple sulfur bacteria. They show an unusual aggregation behaviour after sulfide depletion, forming dense cell aggregates (Fig. 1) which can be disintegrated within less than 1s through the addition of sulfide (Fig. 2). (@DSMZ/ Department Microbial Ecology and Diversity Research)
Candida albicans is a dimorphic yeast growing both as yeast-like and filamentous forms. This species is broadly known as a frequent agent of human mycoses, opportunistic oral and genital infections, but also nail infection such as candidal onychomycosis. Candida albicansDSM 1386 is a commonly used test strain for Quality management in medical microbiology (according to DIN standards) and is also used in antibiotics resistance assays.
Microbial Biodiversity! (@DSMZ/S. Thiele)
Bioluminescent Aliivibrio fischeri strain (basonym Vibrio fischeri) cultivated in an Erlenmeyer flask. (@DSMZ/Richard Hahnke)
A bacterium called Lampropedia hyalina grows as two-dimensional square sheets. Each sheet divides into “daughter” sheets. (Catalogue DSMZ 16112, @DSMZ)
Week 51: "Christmas Trees with Snow"
DSMZ 17908 Xenorhabdus mauleonii are motile gram-negative enterobaceria (@DSMZ/Elke Lang)
Bacteriophages are viruses that infect and replicates within bacteria (Achromobacter 90 min after infection with alpha phages)
Boletus edulisDSM 4409, commonly known as penny bun, porcino or cep, is a basidiomycete fungus, and the type species of the genus Boletus.
Verrucomicrobium spinosumDSM 4136 (@DSMZ/M.Rohde) are heterotrophic, gram-negative, nonmotile bacteria with appendages called prosthecae. V. spinosum has been found in eutrophic ponds and lakes.
Gram-positive bacteria belonging to the family Actinomycetaceae, they are facultative anaerobic, straight or bent rods of different size, some strains have branched mycelia. They are found in all warm-blooded vertebrates.
(Image: @DSMZ/AG Rüdiger Pukall)
Campylobacter jejuni (DSM 4688) is a species of bacteria commonly found in animal feces. It is a curved, helical-shaped, non-spore forming, Gram-negative, microaerophilic bacteria. It is one of the most common causes of human gastroenteritis in the world.
Immunofluorescence staining of Clamydia trachomatis, an analysis method used by the medical microorganisms workgroup at the DSMZ.
Bacillus-strain, gram-positive aerobic, endogenous spore former
Bacteriophages, viruses that attack bacteria, are a promising research focus at the DSMZ. By destroying and disintegrating their host bacteria, they create clear plaques on bacterial lawn. The collection of phages at the DSMZ already contains 350 examples, growing steadily. Phages could play a big role as an alternative to antibiotics or in food production.
The aerobic endogenous spore forming organism Bacillus thuringiensis spc. is supervised by Dr. Rüdiger Pukalls workgroup at the DSMZ. (e.g. DSM 6029)
It's the coming of spring - oak and birch are breaking into leaf!
More than 700 plants are living in our laboratories on less than one quare meter as cell cultures. How we do that and what's the great importance of these cell lines for drug research and agriculture you can find out at the DSMZ.
The actinomycete Streptomyces fulvissimusDSM 40593, producing the antibiotic Valinomycin that increases the transport of potassium across cell membranes.
Electron micrograph of Hyphomicrobium zavarziniiDSM 1566.
Isolated by G.A. Zavarzin, this picture shows the cell shape typical for this group of organisms: larger (mother) cells and smaller (buds) cells joined by a filament - hyphae. ©DSMZ/GBF, M. Rohde
Marine bioluminescent Photobacterium kishitaniiDSM 19955. The genus Photobacterium was first coined by Martin Beijerinck, in 1889, and originally referred to all bacteria capable of light production. Species belonging to Photobacterium are gram negative, rod shaped, chemo- organotrophic, facultative aerobes. They have been associated with seawater surfaces, marine sediments, intestinal organs of marine animals, and saline lake water. (@DSMZ)
Human bladder carcinoma, the cell line JMSU-1 (@DSMZ/Corinna Meyer) is taken good care of by the Department of Human and Animal Cell Line at the DSMZ.
Due to gastro-intestinal diseases going around recently, a microscopic picture of the intestinal germ Ruminococcus gauvreauiiDSM 19829. (@DSMZ, AG Dr. Rüdiger Pukall)
Lactobacillus delbrueckii (foto: @DSMZ) is a gram-positive, medium sized rod shaped bacterium. L. delbrueckii subsp. bulgaricusDSM 20081 is used in the production of traditional yoghurt and cheese. Mild yoghurts are produced by Lactobacillus acidophilus instead of L. delbrueckii subsp. bulgaricus.
Epifluorescent picture of the methanogen archaeon Methanosarcina barkeri DSM 800.The blue fluorescence is based on enzymatic cofactors of the methanogenesis. (@Dr. Stefan Spring/DSMZ)
Electron micrograph of the actinomycete Streptosporangium roseumDSM 43021.
With more than 1.500 type strains we nearly have one representative for each described actinomycete species in our collection. It is one of the biggest and most complete subcollections of the DSMZ with its ~4.400 deposited strains. This high number is a result of the great importance of actinomycetes in economy and medicine, 75% of all known antibiotics are produced by them. Source: DSMZ (www.dsmz.de)
The picture shows a cluster of single plant cells in a suspension culture under the microscope at a magnification of 400x. After cell division cells of a suspension culture normally stick together and form such small cell clusters.
Food crops infected with plant viruses - zucchini yellow mosaic virus - do not taste nice and often can not be marketed. (@DSMZ)
More information at http://www.dsmz.de/research/plant-viruses.html
Expression of keratin and desmosomes in carcinoma cell line ACH1P
Plant Callus Cultures (Source: DSMZ)
Boys and Girls day 2012, part 2:
Even more young creativity in microbiological sciences.
Boys and Girls day 2012:
Young creativity in microbiological sciences.
Microbiology Culture Collection of the DSMZ.
The collection houses 20.000 microorganisms - bacteria, archaea, yeasts and fungi, phages and plasmids. About 1000 new strains are deposited in the public collection each year. The whole breadth of culturable microbial diversity - from the physiological and phylogenic point of view - can be found in our archives, carefully checked for authenticity by state-of-the-art molecular methods.
Electron micrograph of Natronobacterium gregoryi, DSM 3393.
This extremely halophilic and alkaliphilic rod shaped organism was isolated by B.J.Tindall (DSMZ) from Lake Magadi, Kenya.
©DSMZ / GBF, Rohde
Fruiting Body of Corallococcus coralloides (©HZI, Reichenbach)
Thousands of bacterial cells gather at one site and build up fruiting bodies of highly complex structures. The fruiting bodies are smaller than 1 millimeter and enclose special cells (myxospores) which survive dryness or other extreme conditions.