Pretty Protozoa

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Sybil Maree, for Shuter and Shooter Publishers, requests permission to publish 3 photos of rumen microbes - ophryoscolex, rod-shaped fibrobactor bacteria and protist for a new publication for Grade 12 Agricultural Sciences students in South Africa.

Anonymous

Hi Sybil! I don’t own any of the pictures in this blog. The original source of each photo is linked in the post. Good luck!

fuckyeahmicrobiology:

GULP! — Tetrahymena pyriformis fed Qdot streptavidin 585 and 605 (Q10113MP & Q10103MP; yellow & red particles in vacuoles), labeled with TubulinTracker Green (T34075; green kinety) & TO-PRO®-3 (T3605; pseudocolored blue nuclei).

fuckyeahmicrobiology:

GULP! — Tetrahymena pyriformis fed Qdot streptavidin 585 and 605 (Q10113MP & Q10103MP; yellow & red particles in vacuoles), labeled with TubulinTracker Green (T34075; green kinety) & TO-PRO®-3 (T3605; pseudocolored blue nuclei).

It's a microbial world: Mystery solved: Cyclosporiasis outbreak in US linked to bagged lettuce mix

drsohm:

image


This summer an outbreak of Cyclosporiasis, an intestinal disease not commonly found in the US, has been making people in the middle and eastern US sick.

Cyclospora cayetanensis is a protistan (eukaryotic) parasite that is related to the organisms that cause malaria and toxoplasmosis….

FDA: Infected Lettuce At U.S. Restaurants Traced To Mexico : NPR

drsohm:

Cyclospora update: The bagged lettuce that gave over 100 people in Iowa and Nebraska cyclosporiasis was traced to an American owned packaging plant in Mexico and served in Red Lobster and Olive Garden restaurants.  The outbreak was far more widespread though, and authorities still do not know the source of Cyclospora in the other 14 states where people became sick.

Aug 2

staceythinx:

Microbes is a series of pen and ink drawings of microscopic slides by Cecilia Adorio 

(Source: behance.net)

Leptospironympha, a parasite of the wood-feeding cockroach Cryptocercus punctulatus.

Figures 10–15. SEM micrographs of Leptospironympha of Cryptocercus punctulatus showing symbiotic bacteria and surface details. 10. Symbiotic surface bacteria between flagellar bands of L. eupora (Scale bar=5 μm). 11, 12. Symbiotic surface bacteria on the posteriormost cell portion of L. wachula (Scale bars=3 μm and 2 μm respectively). 13. Granular particles on the flagella of L. eupora (Scale bar=1 μm). 14. Operculum of L. eupora, also showing flagella with a few granular particles (Scale bar=1 μm). 15. Anterior view of L. eupora showing the operculum and flagella with granular particles (Scale bar=2 μm).

from Carpenter KJ et al. 2010.  Phylogenetic Position and Morphology of Spirotrichosomidae (Parabasalia): New Evidence from Leptospironympha of Cryptocercus punctulatus. Protist 161(1):122–132.

Leptospironympha, a parasite of the wood-feeding cockroach Cryptocercus punctulatus.

Figures 10–15. SEM micrographs of Leptospironympha of Cryptocercus punctulatus showing symbiotic bacteria and surface details. 10. Symbiotic surface bacteria between flagellar bands of L. eupora (Scale bar=5 μm). 11, 12. Symbiotic surface bacteria on the posteriormost cell portion of L. wachula (Scale bars=3 μm and 2 μm respectively). 13. Granular particles on the flagella of L. eupora (Scale bar=1 μm). 14. Operculum of L. eupora, also showing flagella with a few granular particles (Scale bar=1 μm). 15. Anterior view of L. eupora showing the operculum and flagella with granular particles (Scale bar=2 μm).

from Carpenter KJ et al. 2010.  Phylogenetic Position and Morphology of Spirotrichosomidae (Parabasalia): New Evidence from Leptospironympha of Cryptocercus punctulatus. Protist 161(1):122–132.

Life cycles and cell death of parasitic protozoa Trypanosoma brucei, Leishmania spp., and Plasmodium falciparum.
from Proto WR et al. 2013. Cell death in parasitic protozoa: regulated or incidental? Nature Reviews Microbiol. 11:58-66.

Life cycles and cell death of parasitic protozoa Trypanosoma brucei, Leishmania spp., and Plasmodium falciparum.

from Proto WR et al. 2013. Cell death in parasitic protozoa: regulated or incidental? Nature Reviews Microbiol. 11:58-66.

Steinina ctenocephali, a parasite of the cat flea.
from Alarcón ME et al. 2011. Life Cycle and Morphology of Steinina ctenocephali (Ross 1909) comb. nov. (Eugregarinorida: Actinocephalidae), a Gregarine of Ctenocephalides felis (Siphonaptera: Pulicidae) in Taiwan. Zool. Studies 50(6): 763-772.

Steinina ctenocephali, a parasite of the cat flea.

from Alarcón ME et al. 2011. Life Cycle and Morphology of Steinina ctenocephali (Ross 1909) comb. nov. (Eugregarinorida: Actinocephalidae), a Gregarine of Ctenocephalides felis (Siphonaptera: Pulicidae) in Taiwan. Zool. Studies 50(6): 763-772.


Six examples of protozoa (phagotrophic eukaryotes) that act as models. (a) Tetrahymena, a ciliate that has a versatile model role; image from the Open Access source. (b) The ciliates Paramecium and Didinium are used to evaluate predator–prey dynamics among other roles; image kindly provided by K. Hausmann. (c) Oxyrrhis is a marine flagellate that is emerging as model for a range of topics; image by D. Patterson and provided courtesy of microscope.mbl.edu. (d) Trypanosoma is a blood parasite that provides a source of mitochondria among other attributes; image rights obtained from Eye of Science. (e) Dictyostelium is a soil amoeba that is possibly the most important medical-model protozoon; image kindly provided by R.L. Blanton. (f) Monosiga is a choanoflagellate that is emerging as a model because of its phylogenetic affinity to metazoa; image kindly provided by the King Laboratory, UC Berkeley.

from Montagnes D. et al. 2012. The rise of model protozoa. Trends in Microbiol. 20(4):184-191.

Six examples of protozoa (phagotrophic eukaryotes) that act as models. (a) Tetrahymena, a ciliate that has a versatile model role; image from the Open Access source. (b) The ciliates Paramecium and Didinium are used to evaluate predator–prey dynamics among other roles; image kindly provided by K. Hausmann. (c) Oxyrrhis is a marine flagellate that is emerging as model for a range of topics; image by D. Patterson and provided courtesy of microscope.mbl.edu. (d) Trypanosoma is a blood parasite that provides a source of mitochondria among other attributes; image rights obtained from Eye of Science. (e) Dictyostelium is a soil amoeba that is possibly the most important medical-model protozoon; image kindly provided by R.L. Blanton. (f) Monosiga is a choanoflagellate that is emerging as a model because of its phylogenetic affinity to metazoa; image kindly provided by the King Laboratory, UC Berkeley.

from Montagnes D. et al. 2012. The rise of model protozoa. Trends in Microbiol. 20(4):184-191.