What are the characteristics of Plasmodium?
Characteristics of Plasmodium
- They characteristically show the presence of apical complex.
- **Apical complex consists of polar rings, rhoptries, micronemes, mitcochondrions, microtubules and microspores.
- Organs for locomotion.
- They show slight amoeboid change of form.
How do you identify Plasmodium vivax?
The enlarged size of the in- fected rbcs helps distinguish the two species. P. vivax gametocytes are round to oval with scattered brown pigment and may almost fill the rbc. Schüff- ner’s dots may appear more fine in comparison to those seen in P.
What is the function of Plasmodium vivax?
P. vivax preferentially penetrates young red blood cells (reticulocytes), unlike Plasmodium falciparum which can invade erythrocytes. In order to achieve this, merozoites have two proteins at their apical pole (PvRBP-1 and PvRBP-2). The parasite uses the Duffy blood group antigens (Fy6) to penetrate red blood cells.
What is the morphology of Plasmodium vivax?
Morphology of Plasmodium Vivax: Plasmodium is an endoparasite which lives within the red blood corpuscles of man to whom it is transmitted by the bite of an infected female mosquito. Thus the parasite has two hosts—man and Anopheles—and there is an alternation of the hosts in its life-cycle.
What kingdom does Plasmodium vivax belong to?
Chromista
Malaria parasite P. vivax/Kingdom
What is the phylum of Plasmodium vivax?
Apicomplexa
Malaria parasite P. vivax/Phylum
How can you identify a Plasmodium vivax microscope?
Identifying Plasmodium vivax under a microscope Malaria parasites can be identified by examining a drop of the patient’s blood under a microscope, spread out as a “blood smear” on a microscope slide. To give the parasites a distinctive appearance, the specimen is stained prior to examination.
How can you tell the difference between Plasmodium vivax and ovale?
ovale are enlarged and exhibit Schüffner’s dots as the rings mature into trophozoites. The trophozoites of P. vivax are often ameboid, whereas P. ovale tends to be more compact.
Does Plasmodium vivax have ribosomes?
Two distinct small subunit ribosomal RNA (SSUrRNA) genes were amplified from the genomic DNA of Plasmodium vivax. These oligonucleotides were also used to monitor turnover of ribosomes during parasite development in mosquitoes.
What is the pathogenicity of Plasmodium vivax?
Long considered a benign infection, Plasmodium vivax is now recognized as a cause of severe and fatal malaria, despite its low parasite biomass, the increased deformability of vivax-infected red blood cells and an apparent paucity of parasite sequestration.
What is the dormancy of Plasmodium vivax?
Plasmodium vivax forms dormant liver stages, termed hypnozoites, that create a reservoir of non-replicating, persistent parasites. These re-activate periodically and lead to new symptomatic blood stage infections, termed relapses, without new exposure to parasite-infected mosquitoes [8].
What is the common name of Plasmodium vivax?
Map to
| Mnemonic i | PLAVI |
|---|---|
| Common name i | – |
| Synonym i | – |
| Other names i | ›Haemamoeba vivax ›Haemamoeba vivax Grassi and Feletti, 1890 ›Plasmodium vivax (Grassi & Feletti, 1890) ›malaria parasite P. vivax |
| Rank i | SPECIES |