 |
Anabaena affinis, 640X
| ||
 |
Anabaena circinalis - Measurement unavailable. probably 400x
| ||
 | |||
 |
Anabaena flos-aquae enlarged 2500X
| ||
 |
Anabaena "laxa" - ID for this complex is of course tenuous--see next entry. Measurement unavailable. probably 400x
| ||
 |
Anabaena "laxa" - From the same sample as above, a few weeks later. Note that the akinete is now adjacent the heterocyst. It now keys out to Anabaena "cylindrica". 400x
| ||
 |
Anabaena scheremetievi - 400x phase contrast
| ||
 |
Anabaena scheremetievi - A slight hint of a sheath is visible. 400x
| ||
 |
Anabaena scheremetievi - 400x
| ||
 |
Anabaena sperica, 1600X
| ||
 |
Anabaena spherica - 400x
| ||
 |
Anabaena spiroides - The line is 20 microns. 200x
| ||
 |
Anabaena torulosa - 400x
| ||
 |
Anabaena torulosa - Is it Synecococcus? No, it is Anabaena torulosa akinetes. 400x
| ||
 | |||
 |
Anabaena sp. - (Unidentified) No speculations upon the species. 400x
| ||
 |
Anabaena sp. - (Unidentified) No speculations upon the species. 400x
| ||
 |
Anabaena sp. - (Unidentified) No speculations upon the species. 400x
| ||
 |
Anabaena sp. - (Unusual and contorted) Akinetes are round, so it is probably not A. circinalis. Could be A. spiroides in an unusual state. 200x.
| ||
 |
Anabaena sp. - (Unusual and contorted) The same specimen as above at 100x.
| ||
 |
Anabaena sp. - Probably A. scheremetievi, but akinetes were absent. A hint of a sheath is barely visible. 400x
| ||
 |
Anabaena sp. - Probably A. circinalis, but akinetes were absent. 1000x
| ||
 |
Anabaena sp. - Possibly A. viguieri, but the akinetes are too broad. 400x.
| ||
 |
Anabaena sp., from freshwater lake in Oregon, 100X
| ||
 |
Anabaena sp., from freshwater lake in Oregon, 100X
| ||
 |
Anabaena sp., from freshwater lake in Oregon, 200X
| ||
 |
Anabaena sp., from freshwater lake in Oregon, 100X. Note the fabulous germinating akinetes.
| ||
 | |||
 | |||
 | |||
 | |||
 |
Anabaena sp. with symbiont bacteria (possibly Zoogloea) around heterocysts
| ||
 |
Anabaenopsis circularis - The central pair of heterocysts is clearly visible. 200x
| ||
 |
Anabaenopsis circularis - A developing pair of heterocysts is visible in the center of the trichome. Note the bacteria attached to it. 400x (phase contrast)
| ||
 |
Anabaenopsis circularis - Same as above without phase contrast. 400x
| ||
 |
Anabaenopsis sp. bloom in Bedetti Lake, Santo Tome, Santa Fe, Argentina
| ||
 |
Anabaenopsis sp. bloom in Bedetti Lake, Santo Tome, Santa Fe, Argentina
| ||
 |
Anabaenopsis sp. bloom in Bedetti Lake, Santo Tome, Santa Fe, Argentina
| ||
 |
Anacystis nidulans TEM of semi-thin section (200 nm). See protocol.
| ||
 |
Anacystis nidulans TEM of semi-thin section (200 nm) See protocol.
| ||
 |
Anacystis nidulans TEM of semi-thin section (300 nm) See protocol.
| ||
 |
Anacystis nidulans TEM of semi-thin section (300 nm) See protocol.
| ||
 |
Anacystis nidulans TEM of semi-thin section (500 nm) See protocol.
| ||
 |
Anacystis nidulans TEM of semi-thin section (500 nm) See protocol.
| ||
 |
Aphanizomenon flos-aquae - Akinetes and heterocyst clearly visible. Measurement unavailable. probably 400x
| ||
 |
Aphanizomenon flos-aquae - Colony. Measurement unavailable. probably 100x
| ||
 |
Aphanizomenon flos-aquae - Colony. Akinetes absent. 400x
| ||
 |
Aphanizomenon flos-aquae strain 1401/5. Autofluorescence image.
| ||
 |
Aphanizomenon flos-aquae strain 1401/5. Autofluorescence image.
| ||
 |
Aphanizomenon flos-aquae strain 1401/5. Autofluorescence image.
| ||
 |
Arthrospira jenneri - Cross-walls obscured by cytoplasmic granules (sorry). 400x
| ||
 |
Beggiatoa alba - 400x
| ||
 |
Beggiatoa alba - Cropped portion of image above at higher resolution.
| ||
 |
Bloom in waters at the Hartebeespoort dam in South Africa
| ||
 |
Bloom of Microcystis aeruginosa and Anabaena circinalis on the St. Johns River, FL
| ||
 |
Bloom of Aphanizomenon flos aquae in a lake in Surrey, UK
| ||
 | |||
 |
Bloom of Microcystis in Crescent Lake, FL
| ||
 |
Bloom in Doctor's Lake
| ||
 |
Bloom in Lake Ponchartrain, LA, an oligohaline estuary
| ||
 |
Bloom of Microcystis aeruginosa and Anabaena circinaliscontaminated by a boat on the St. Johns River, FL
| ||
 |
Bloom in agricultural setting in Missouri
| ||
 |
Bloom in agricultural setting in Missouri
| ||
 |
Bloom in agricultural setting in Missouri
| ||
 |
Bloom in agricultural setting in Missouri
| ||
 |
Bloom in agricultural setting in Missouri
| ||
 |
Anabaena and Aphanizomenon - decaying scum in a Scottish freshwater lake
| ||
 |
Anabaena and Microcystis - bloom in a Scottish freshwater lake
| ||
 | |||
 | |||
 | |||
 |
Calothrix sp. showing terminal heterocysts
| ||
 | |||
 | |||
 | |||
 | |||
 |
Chloroflexus sp. - Unknown phytoplankton from a fish pond. Speculation: Chloroflexus. 400x
| ||
 |
Chloroflexus sp. - Wider view higher resolution image of specimen above.
| ||
 | |||
 |
Collecting cyanobacteria from a large bloom
| ||
 |
Cryptozoon proliferum - from Quebec
| ||
 |
Cryptozoon proliferum - from Quebec
| ||
 | |||
 |
Cyanosarcina sp. from a pulp and paper waste-treatment system in Brazil
| ||
 |
Cylindrospermopsis raciborskii - Heterocysts and akinetes visible. 400x
| ||
 |
Very old laboratory culture of Cyanothece sp. forms solid roof to retain moisture.
| ||
 |
Cyanothece sp. - electron micrograph showing carbohydrate granules
| ||
 |
Cylindrospermopsis raciborskii - 400x phase contrast
| ||
 |
Cylindrospermopsis raciborskii - Heterocyst visible. 400x
| ||
 |
Cylindrospermopsis raciborskii - Akinetes (only) visible. 400x phase contrast
| ||
 |
Cylindrospermopsis raciborskii - Heterocyst visible. 400x phase contrast
| ||
 |
Cylindrospermum muscicola - 400x
| ||
 |
Cylindrospermum muscicola - Surprise! It is notPseudanabaena, but C. muscicola, without akinetes, but with a developing heterocyst. 400x phase contrast
| ||
 | |||
 | |||
 |
Cylindrospermum sp., 1600X
| ||
 |
Cylindrospermum sp., 1600X
| ||
 |
Eubacterium - Unidentified bacterium pays Euglena a visit. 1000x
| ||
 | |||
 | |||
 |
Geitlerinema sp. from a pulp and paper waste-treatment system in Idaho
| ||
 |
Girvanella sp. in algae oncolites from the Lower Cambrian Mule Spring Limestone, Waucoba Spring, Death Valley National Park
| ||
 | |||
 | |||
 |
Gloeocapsa sp. together with two algae
| ||
 |
"Gloeotrichia" - Akinete and heterocyst clearly visible. Measurement unavailable. 400x
| ||
 |
"Gloeotrichia" - Colony. Measurement unavailable. 100x
| ||
 |
Gloeotrichia echinulata - pinhead-size colonies in a Scottish freshwater lake
| ||
 | |||
 | |||
 | |||
 | |||
 | |||
 | |||
 | |||
 | |||
 |
Lyngbya sp. showing classical sheath and terminal differentiation in the lower filament
| ||
 |
Lyngbya sp. showing formation of a coil at the end of a "hairpin" formation
| ||
 |
Lyngbya sp. - (Unidentified) No speculations upon the species. 200x
| ||
 |
Lyngbya sp. - (Unidentified) No speculations upon the species. Note that one has no visible sheath. 200x
| ||
 |
Lyngbya sp. - Same specimen as above. 400x phase contrast
| ||
 |
Lyngbya sp. - (Unidentified) Possibly birgei. 200x
| ||
 |
Lyngbya sp. - Social gathering of the above species. 200x
| ||
 | |||
 | |||
 |
Lyngbya sp., two cells are leaving the shell
| ||
 | |||
 |
Lyngbya sp. at 100 X.
| ||
 |
Mat Community Knit strings of cyanobacteria from green layer of a microbial mat from Great Sippewissett Saltmarsh, Falmouth, MA
| ||
 |
Mat Community Cross-section of a microbial mat from Great Sippewissett Saltmarsh, Falmouth, MA
| ||
 |
Merismopedia - Colony of Merismopedia (Agmenellum [Drouet],Synechocystis Low GC cluster [Waterbury and Rippka]). 200x
| ||
 |
Merismopedia elegans, 640X
| ||
 | |||
 | |||
 | |||
 |
Microcoleus sp. - One of those in the anomalousMicrocoleus/Symploca/Lyngbya/Take-a-guess range. 400x
| ||
 | |||
 |
Microcystis aeruginosa enlarged 2500X
| ||
 |
Microcystis aeruginosa strain PCC 7806. Autofluorescence image.
| ||
 |
Microcystis aeruginosa strain PCC 7806. Autofluorescence image.
| ||
 |
Microcystis aeruginosa strain PCC 7806. Autofluorescence image.
| ||
 |
Microcystis aeruginosa strain PCC 7806. Autofluorescence image.
| ||
 |
Microcystis aeruginosa strain PCC 7806. Autofluorescence image.
| ||
 |
Microcystis aerogenosa strain 1450/10 in very old (6 month) stationary phase cultures imaged with autofluoresence. 1000X
| ||
 |
Microcystis aerogenosa strain 7806 in very old stationary phase cultures imaged with autofluoresence. Note transient "bright strike" feature. 1000X
| ||
 |
Microcystis aerogenosa strain 7806 in very old (100 d) stationary phase cultures imaged with phase contrast. Note multi-planar division. 1000X
| ||
 |
Microcystis aerogenosa strain 7806 in very old (100 d) stationary phase cultures imaged with phase contrast. Note narrow sheath. 1000X
| ||
 |
Microcystis aerogenosa. 100X
| ||
 |
Microcystis sp. bloom
| ||
 |
Microcystis sp. - Becoming confluent. 200x
| ||
 |
Microcystis sp. bloom from bird's eye view
| ||
 |
Microcystis aeruginosa bloom, Lake Mokoan, Victoria, Australia.
| ||
 | |||
 |
Microcystis sp. - Separate colonies. 200x
| ||
 |
Microcystis sp., bloom, Grandview Garden Park, Beijing
| ||
 |
Mixture - Oscillatoria cf. chalybea, Planktothrix agardhii, andAnabaena spiroides. 200x
| ||
 |
Mixture - Oscillatoria cf. chalybea, Planktothrix agardhii, andArthrospira jenneri. 200x
| ||
 |
Mixture, including Thiothrix and Oscillatoria sp.
| ||
 |
Mixture, including Spirulina and Microcoleus sp. and diatoms together with Thiopediasp.
| ||
 |
Mixture of cyanobacteria from microbial mat community
| ||
 |
Mystery Bug - Truly strange. Spirulina major inside a bundle. 400x
| ||
 |
Mystery Bug - Unidentified filament. Is it made of diatoms, desmids, cyanobacteria, or the unknown? 400x
| ||
 |
Mystery Bug A - Planktothrix agardhii with a swollen terminal cell. 200x. For Mystery Bugs A through E, it has been suggested that the swollen terminal cells are fungal (chytrid) fruiting bodies (sporangia) as hyphae have been observed running the length of similar trichomes.
| ||
 |
Mystery Bug B - Planktothrix agardhii with a double swollen terminal cell. 200x. See Mystery Bug A.
| ||
 |
Mystery Bug C - Another odd Planktothrix agardhii. 400x phase contrast. See Mystery Bug A.
| ||
 |
Mystery Bug D - Another odd Planktothrix agardhii. 400x phase contrast. See Mystery Bug A.
| ||
 |
Mystery Bug E - Same as above without phase contrast. 400x. See Mystery Bug A.
| ||
 |
Mystery wavy cyanobacteria
| ||
 |
Mystery cyanobacteria in a colony
| ||
 |
Mystery cyanobacteria showing vessicles
| ||
 | |||
 | |||
 | |||
 | |||
 |
Nodularia spumigena enlarged 1250X
| ||
 |
Nodularia sp. bloom in situ from an undersea porthole in the Baltic Proper
| ||
 |
Nostoc (Anabaena) azollae - Heterocyst clearly visible. 400x
| ||
 |
Nostoc (Anabaena) azollae - Numerous akinetes visible. 400x
| ||
 |
Nostoc sp. - Possible germling. 400x
| ||
 |
Nostoc sp. - Possible colony or is it a strange type of Anabaena spherica?. The only thing for sure is that nothing is for sure. 200x
| ||
 |
Nostoc sp., 130X
| ||
 |
Nostoc sp. at 10X
| ||
 | |||
 | |||
 | |||
 | |||
 | |||
 |
Nostochopsis sp., cell and branching
| ||
 |
Nostochopsis sp., gross structure
| ||
 |
Nostochopsis sp., detailed image
| ||
 |
Nostochopsis sp., pediellate heterocyst
| ||
 |
Nostochopsis sp., intercalary heterocyst
| ||
 |
Oscillatoria agardhii - Autofluorescence image.
| ||
 |
Oscillatoria cf. chalybea - With Planktothrix agardhii, and possible Raphidiopsis sp. 200x
| ||
 |
Oscillatoria "chlorina" - Quotes represent the contributor's resentment at identifying cyanobacteria using color. 400x
| ||
 |
Oscillatoria geminata - 400x
| ||
 | |||
 |
Oscillatoria limosa, 640X
| ||
 | |||
 |
Oscillatoria princeps - 200x
| ||
 |
Oscillatoria princeps - 100x
| ||
 |
Oscillatoria princeps - Social gathering with some friends. 200x
| ||
 |
Oscillatoria splendida - 400x phase contrast
| ||
 | |||
 |
Oscillatoria sp. - The famous "big Oscillatoria". Species not known. It may be undescribed. 200x
| ||
 |
Oscillatoria sp. - Note the granules in the terminal cell, along with its thickened membrane. 400x
| ||
 |
Oscillatoria sp. - With the bright light rendering its striking granules more visible. Note the spiral arrangement of the granules. 100x
| ||
 |
Oscillatoria sp. - The same specimen as above. 200x
| ||
 |
Oscillatoria sp. - At low magnification. 40x
| ||
 |
Oscillatoria sp. together with a Synechocystis microcolony. Note the numerous bacteria in the background.
| ||
 | |||
 |
Oscillatoria sp., 640X
| ||
 |
Oscillatoria sp., likely a hormogonium, from a pulp and paper waste-treatment system in Brazil
| ||
 | |||
 |
Phormidium retzii - Tentative identification. 200x
| ||
 | |||
 | |||
 |
Phormidium uncinatum - Tentative identification. 400x phase contrast
| ||
 |
Phormidium uncinatum - Same as above without phase contrast. 200x
| ||
 |
Phycobilisome diagram Each disk in the phycobilisome structure represents a hexameric aggregate, (alpha-beta)66, of a phycobiliprotein complexed with a linker protein: Phycoerythrin = red, Phycocyanin = blue, Allophycocyanin = light blue. The green elements are the two PSII reaction centers that associate with each phycobilisome.
| ||
 |
Planktothrix (Oscillatoria) agardhii - With visible pseudovacuoles. 400x phase contrast
| ||
 |
Planktothrix rubescens. 100x.
| ||
 |
Plankothrix agardhii - microcystin-containing bloom in a Scottish freshwater lake
| ||
 |
Plankothrix agardhii - shoreline deposit of a microcystin-containing bloom in a Scottish freshwater lake
| ||
 | |||
 |
Raphidiopsis curvata - Mixed with some straight chains that are either more Raphidiopsis or Cylndrospermopsis raciborskiiwithout akinetes or heterocysts. 400x
| ||
 |
Raphidiopsis curvata - Same as above with phase contrast
| ||
 |
Raphidiopsis cf. mediterranea - Could be R. brookii. 400x
| ||
 | |||
 |
Raphidiopsis curvata - 200x
| ||
 |
Raphidiopsis cf. mediterranea - Pseudovacuoles clearly visible. 400x phase contrast
| ||
 | |||
 | |||
 | |||
 |
Spirulina major - 400x phase contrast
| ||
 | |||
 | |||
 | |||
 | |||
 | |||
 | |||
 |
Spirulina sp. (Arthrospira) culture contaminated by brown swans in South Bend, IN.
| ||
 | |||
 | |||
 | |||
 | |||
 |
Columnar Stromatolites and Thrombolites from tidal channel at Lee Stocking Island, Bahamas
| ||
 |
Stromatolite Cross-section, columnar procaryotic stromatolite grown on Calianassa burrow. Bar = 1 cm.
| ||
 |
Stromatolite Photomicrograph, thin section of prokaryotic stromatolite showing alternating layers of dense micrite and coarse detritus.
| ||
 |
Stromatolite Photomicrograph, thin section of eukaryotic stromatolite showing undulose laminations formed by a combination of eukaryotic algal and cyanobacterial activities.
| ||
 |
Stromatolites found in Middle Proterozoic formations of the Hakatai Shale in Grand Canyon National Park.
| ||
 |
Stromatolites found in Middle Proterozoic formations of the Hakatai Shale in Grand Canyon National Park. Lens cap is 55 mm.
| ||
 |
Stromatolites found in Middle Proterozoic formations of the Hakatai Shale in Grand Canyon National Park. Lens cap is 55 mm.
| ||
 |
Stromatolites found in Middle Proterozoic formations of the Hakatai Shale in Grand Canyon National Park.
| ||
 | |||
 |
Frozen Stromatolites, Shark's Bay, Australia
| ||
 |
Frozen Stromatolites, Shark's Bay, Australia
| ||
 |
Frozen Stromatolite Mat, Shark's Bay, Australia
| ||
 |
Frozen Stromatolite, Shark's Bay, Australia
| ||
 |
Frozen Stromatolites, Shark's Bay, Australia
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Living Stromatolites, Salda Lake, Turkey
| ||
 |
Stromatoids, dry lake bed near Agaean Sea
| ||
 |
Stromatoids, dry lake bed near Agaean Sea
| ||
 |
Stromatoids, dry lake bed near Agaean Sea
| ||
 | |||
 | |||
 |
Thrombolite Heads heavily overgrown by Lee Stocking Island, Bahamas
| ||
 |
Thrombolite of modern origin from Lee Stocking Channel, Bahamas. Bar = 1 cm.
| ||
 |
Thrombolite Photomicrograph, thin section showing boundary between micritic clot and detritus-rich sediment pocket
| ||
 | |||
 | |||
 |
Trichodesmium sp., Nomarski optics, 1000x
| ||
 |
Trichodesmium sp., Nomarski optics, 1000x
| ||
 |
Trichodesmium sp., Phase contrast, 1000x
| ||
 |
Trichodesmium sp., Fluorescence optics, 1000x
| ||
 |
Trichodesmium sp., Fluorescence optics, 1000x
| ||
 |
Trichodesmium sp., Phase contrast, 1000x
| ||
 |
viernes, 25 de marzo de 2016
Estudios de la microbiología
imágenes de las cyanobacterias
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