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Stramenopiles (protists 7)
Terms in this set (24)
The parasitic forms of stramenopiles are...
pythium and blastocystis
This is a water mold
- principally aquatic
- saprophytic or weakly parasitic
- profusely branched coenocytic (multinucleate) hyphae colonize around decaying organic material in water
Asexual reproduction by means of _____ (structures that contain spores)
Sexual reproduction via _____
A motile asexual spore that uses a flagellum for locomotion
A haploid structure where gametes are produced
Most complex multicellular anatomy of any algae - most call it seaweed
Why is whether Blastocystis hominis can cause symptomatic infection in humans a point of active debate?
This is because of the common occurrence of the organism in both asymptomatic and symptomatic persons.
This was first described in 1884 by british vets working with horses in india
Unlike fungi, Stramenopiles have hyphal-like growth phases that differ from those of
fungi in being ____ and cell walls composed of _____ rather than chitin.
Explain why certain antifungals do not work very well against Pythium.
They lack ergosterol in their cell membranes
Most parasitic Stramenopiles are parasites of
This is the form of pythium insidiosum that moves between plants and have demonstrated chemotaxis toward decaying or injured tissue
the biflagellate zoospore
Pythiosis is not transmissible between hosts (T/F)
Kunkers in horses are formed by degranulation of eosinophils over the invading hyphae of
In dogs, in contrast to horses, the gastrointestinal form of pythiosis occurs
more often than the subcutaneous form
2 facultative parasites:
primate: Entamoeba histolytica
facultative: Acanthamoeba spp. and
cysts and trophozoites are passed in ___
usually, trophozoites remain confined in ___
but sometimes it can invade the mucosa of this and cause pathological manifestations.
invasive form of Entamoeba:
non-invasive form of Entamoeba:
Acanthamoeba have pseudopodia that have small filamentous protrusions at the end of the lobopodia called
Most common infection is ...
Also cause ...
keratitis (eye infection)
granulomatous amebic encephalitis
Acanthamoebic Encephalitis occurs in what kind of individuals?
First being described as the cause of death of a mandrill in a California zoo
Also has killed gorillas in zoos
A cause of chronic granulomatous amebic encephalitis in humans
This set is often in folders with...
Parasitology test 1
Parasitology test 1 (Part 2)
Flagellates (protists 1 & 2)
Alveolates and Apicomplexa (protists 3 & 4)
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