Single Celled Collection

Acrosphaera radiolarian, SEM
Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of the Arachnoidiscus sp. diatom. The diatoms are a group of photosynthetic, single- celled algae containing about 10, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Stephanopyxis sp. diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium morlandii diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Dividing yeast cells, SEM
Dividing yeast cells. Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast cells dividing. S. pombe is a single-celled fungus that is studied widely as a model organism for

Dividing yeast cells, SEM
Dividing yeast cells. Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast cells dividing. S. pombe is a single-celled fungus that is studied widely as a model organism for

Trypanosome protozoan, artwork
Trypanosome protozoan. Artwork of a section through a Trypanosoma congolense protozoan. This parasite is a cause of the disease nagana in cattle and other livestock in Africa

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of the surface of the mineralised cell wall (frustule) of an unidentified diatom. This is a planktonic unicellular alga

Protozoa, a single-celled organism that feeds by scavenging for particles and other microorganisms, such as bacteria, or by absorbing nutrients from their environment

Fossilised diatoms, SEM

Dinoflagellate plankton, SEM
Dinoflagellate plankton. Coloured scanning electron micrograph (SEM) of the calcareous (calcium-based) test (shell) of a dinoflagellate Calciodinellum sp

Diatom frustule, SEM
Diatom frustule. Coloured scanning electron micrograph (SEM) of the frustule of a Pinnularia sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 10

Oxytricha ciliate protozoan, SEM C019 / 0253
Oxytricha sp. ciliate protozoan, coloured scanning electron micrograph (SEM). Oxytricha is a tiny single-celled aquatic organism

Diatom alga, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Biddulphia sp. diatom. This is a marine planktonic unicellular alga. It has a mineralised cell wall (frustule) divided into two halves

Paramecium bursaria protozoan, micrograph
Paramecium bursaria protozoan, light micrograph. This ciliate protozoan inhabits freshwater, where it feeds mainly on bacteria

Yeast protein interaction map
Yeast protein map showing relationships between proteins in the yeast Saccharomyces cerevisiae. Each dot represents one of the proteins found in this single-celled fungus

Paramecium protozoa, light micrograph
Paramecium bursaria protozoa, light micrograph. These ciliate protozoa inhabit freshwater, where they feed mainly on bacteria

Trichodina parasite, light micrograph
Trichodina parasite. Differential interference contrast micrograph of Trichodina pediculus. This ciliate parasite lives on the skin, gills and mucous membranes of many aquatic animals

Yeast cells, TEM
Yeast cells, coloured transmission electron micrograph (TEM). The cell wall is shown in blue, cytoplasm in red, and vacuole in green. Yeast is a single-celled fungus that reproduces asexually

Desmids and spirogyra, light micrograph C016 / 9595
Desmids and spirogyra. Polarised light micrograph of two Micrasterias rotata desmids (round) and a single filament of Spirogyra sp. green alga (lower right)

Netrium desmid, light micrograph C016 / 9591
Netrium desmid. Polarised light micrograph of a Netrium sp. desmid (oval, centre) among peat moss (Sphagnum sp.) leaves (green)

Hartmannella vermiformis protozoa cysts C016 / 9402
Hartmannella vermiformis protozoa cysts. Transmission electron micrograph (TEM) of a section through cysts (round) containing Hartmannella vermiformis protozoa. H

Legionella infected protozoan, TEM C016 / 9412
Legionella infected protozoan. Transmission electron micrograph (TEM) of a section through a single-celled Tetrahymena pyriformis protozoan, infected with Legionella pneumophila bacteria (yellow)

Micrasterias desmids, light micrograph C016 / 9596
Micrasterias desmids. Rheinberg illuminated light micrograph of Micrasterias rotata desmid green algae. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Giardia protozoan, SEM C016 / 9398
Giardia protozoan. Coloured scanning electron micrograph (SEM) of a Giardia sp. trophozoite protozoan (yellow) attached to the lining of a human intestine

Ciliate protozoan ingesting algae. Darkfield illuminated light micrograph of a ciliate protozoan ingesting green algae (green)

Desmid, light micrograph
Desmid. Darkfield illuminated light micrograph of a desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Euastrum desmid, light micrograph
Euastrum desmid. Darkfield illuminated light micrograph of a Euastrum oblongum desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Xanthidium desmids, light micrograph
Xanthidium desmids. Polarised light micrograph of a Xanthidium sp. desmid green algae. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Desmids, light micrograph
Desmids. Phase contrast light micrograph of Micrasterias sp. and Hyalotheca sp. desmid green algae. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Closterium desmid, light micrograph
Closterium desmid. Differential interference contrast (DIC) micrograph of a Closterium sp. desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell

Ciliate protozoan, light micrograph
Ciliate protozoan. Darkfield illuminated light micrograph of a ciliate protozoan, showing green algae (green) that it has ingested

Bambusina desmids, light micrograph
Bambusina desmids. Polarised light micrograph of a colony of Bambusina sp. desmid green algae. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Prokaryote cell, artwork C016 / 6263
Prokaryote cell. Computer artwork showing the internal structure of a typical prokaryotic cell. Prokaryotes are organisms whose cells lack a membrane-bound nucleus (karyon)

Prokaryote and eukaryote cells, artwork C016 / 6259
Prokaryote and eukaryote cells. Computer artwork comparing typical prokaryotic (top) and eukaryotic (bottom) cells. Prokaryotes are organisms whose cells lack a membrane-bound nucleus (karyon)

Yeast cells, illustration C018 / 0750
Yeast cells. Illustration of cells of brewer s, or baker s, yeast (Saccharomyces cerevisiae). This fungus consists of single vegetative cells

Yeast cells, illustration C018 / 0752
Yeast cells. Illustration of cells of brewer s, or baker s, yeast (Saccharomyces cerevisiae). This fungus consists of single vegetative cells. S

Spirostomum ciliate protozoan, SEM C019 / 0308
Spirostomum sp. ciliate protozoan, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats

Blepharisma ciliate protozoan, SEM C019 / 0228
Blepharisma ciliate protozoan, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats

Spirostomum ciliate protozoan, SEM C019 / 0307
Spirostomum sp. ciliate protozoan, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats

Climacostomum protozoan, SEM C019 / 0243
Climacostomum sp. ciliate protozoan, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats

Pediastrum green algae, micrograph
Pediastrum green algae. Differential interference contrast light micrograph of a circular colony of Pediastrum sp. green algae (Chlorophyte). Pediastrum is a type of freshwater colonial algae

Closterium desmid, light micrograph C016 / 8608
Closterium desmid. Interphase contrast micrograph of a Closterium sp. desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Evolution, conceptual image. Computer artwork representing the development of life on earth from single-celled organisms (upper left) through to complex lifeforms such as dinosaurs (centre)

Netrium desmids, light micrograph
Netrium desmids. Polarised light micrograph of Netrium sp. desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell walls

Vorticella protozoan, light micrograph
Vorticella protozoan. Rheinberg illuminated light micrograph of a Vorticella sp. ciliate protozoan. This single-celled organism consists of a bell-shaped head

Cosmarium desmids, light micrograph
Phase contrast, magnification: 200 X on APS-C sensor

Golden algae, light micrograph
Golden algae. Polarised light micrograph of a colony of Dinobryon sp. golden algae (chrysophytes). Magnification: x200 when printed 10 centimetres wide

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"Unveiling the Microscopic World: Captivating Single-Celled Organisms Under the SEM" Delicate and intricate, diatoms reveal their mesmerizing beauty under the scanning electron microscope (SEM). Their symmetrical frustules showcase nature's artistry at its finest. Witness the fascinating process of cell division in yeast cells as they multiply and propagate. The SEM captures this microscopic dance with remarkable detail. Behold the captivating artwork of Trypanosome protozoan, a single-celled organism that evokes both awe and curiosity. Its unique form is brought to life through artistic interpretation. Diatom alga, another marvel of nature, showcases its stunning structure when examined under the SEM lens. These tiny organisms play a crucial role in aquatic ecosystems worldwide. Protozoa, scavengers extraordinaire. Discover these single-celled wonders as they scavenge for particles and microorganisms or absorb nutrients from their environment – truly masters of survival. Acrosphaera radiolarian takes center stage with its intricate skeletal structure captured by SEM imaging techniques. Marvel at this ancient marine creature frozen in time. Journey back millions of years as fossilized diatoms come into focus under the SEM lens, offering glimpses into Earth's past and providing valuable insights for scientific research today. Diatom frustule - an architectural masterpiece on a microscopic scale. Explore these silica-based shells that protect diatoms while showcasing an array of breathtaking patterns through SEM imagery. Oxytricha ciliate protozoan reveals its astonishing complexity when observed using advanced microscopy techniques like SEM C019 / 0253 – unlocking secrets hidden within this enigmatic world. Exploring single-celled organisms through scanning electron microscopy opens up a whole new dimension where beauty meets science; revealing intricacies unseen by our naked eyes but essential to understanding life's diversity on our planet.