1500_2_Protists - BIO1500 W07 Protists 1 Protist genome...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 1 BIO1500 W07 Protists 2 Protist genome sequencing as of 2/2007 Completed Cyanidioschyzon merolae Entamoeba dispar Entamoeba histolytica Entamoeba invadens Plasmodium falciparum Thalassiosira pseudonana Trypanosoma cruzi Assembled 18 In progress 31 http://www.ncbi.nlm.nih.gov/genomes/leuks.cgi
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 3 Protists: some basic facts The” kingdom” Protista does not exist Protista is an artificial group of convenience for referring to single- celled eukaryotes There is a total of six commonly reckognized “protist” lineages Protists include the oldest eukaryotic lineages Some of the most harmful human parasites are protists Protist species evolved spectacular forms of locomotion, nutrition, reproductionand cellular organization 4 Euglenozoa Euglenozoa includesome of the oldest eukaryotic lineages with mitochondria and chloroplasts Euglenozoa is subdivided into two subgroups: ! Euglenoids ! Kinetoplastids
Background image of page 2
3 5 Euglenoids most are freshwater about one-third are autotrophic pellicle lies within membrane " stigma - light sensitive organ that aids in orienting toward light Euglena " two flagella attached to reservoir " contain numerous chloroplasts 6 Kinetoplastids Characterized by unique, single mitochondrion in each cell Kinetoplastids evolved multiple parasites Kinetoplast species are the cause a number of extreme human diseases: ! Trypanosomiasis or African sleeping sickness ! Chagas disease ! East Coast Fever ! Leishmaniasis
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 7 The kinetoplastid species Trypanosoma cruzi causes Chagas disease Trypanosoma cruci infection can be contracted by bites from the tsetse fly or from blood of infected mammals Trypanosoma proliferates in the blood stream of infected mammals 8
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 16

1500_2_Protists - BIO1500 W07 Protists 1 Protist genome...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online