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#Trypanosoma

3 public questions tagged with this topic.

Protista Classification

Trypanosoma causes

Trypanosoma brucei subspecies cause African sleeping sickness, transmitted by tsetse fly Glossina. Parasites live extracellularly in blood, lymph and cerebrospinal fluid, evading immunity through antigenic variation of variant surface glycoprotein coat continuously switching. Disease progression includes hemolymphatic stage with fever and lymphadenopathy, followed by meningoencephalitic stage disrupting sleep-wake cycle due to neuroinvasion. Plasmodium causes malaria, Vibrio cholera causes cholera, Mycobacterium causes tuberculosis. Distinct vector-borne life cycle and pathogenesis identifies

Ref: NCBI Bookshelf, Medical Microbiology: Trypanosoma Sleeping Sickness; Campbell Biology 12th ed., Chapter 28 Kinetoplastid Parasites

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General Biology of Protists

Trypanosoma belongs to

Trypanosoma genus encompassing Trypanosoma brucei causing African sleeping sickness and Trypanosoma cruzi causing Chagas disease represents parasitic kinetoplastid flagellates within class Kinetoplastea of Excavata. Cells possess single emergent flagellum originating from flagellar pocket near posterior kinetoplast, attached to cell body via undulating membrane generating propulsive waves. Life cycles involve insect vectors tsetse flies and triatomine bugs with antigenic variation. Unlike euglenoids bearing photoreceptive stigma and chloroplasts in some species, trypanosomes are strictly heter

Ref: CDC DPDx Trypanosomiasis Trypanosoma kinetoplastid; Jawetz Medical Microbiology Trypanosoma single flagellum undulating membrane

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Biological Classification

The notorious disease 'sleeping sickness' is caused by Trypanosoma, which belongs to which major group of protozoans?

According to , the members of flagellated protozoans are either free-living or parasitic in nature, and they notably possess flagella for locomotion. The parasitic forms within this specific group are known to cause severe diseases in humans. A primary example provided in the text is Trypanosoma, which is the causative agent of the deadly disease known as sleeping sickness.

Ref: NCERT Class 11 Biology > Chapter 2: Biological Classification > 2.2 Kingdom Protista

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