7/25/2019 Lecture 1 Protists

1/15

Lecture 1: Protists

Dr. Dimos

7/25/2019 Lecture 1 Protists

2/15

Evolutionary relationshipsrepresented as a phylogenetictree

or cladogram

A B c

Root

Branches

Nodes(commonancestors

!hared" derivedcharacter(s(!ynapomorphy

7/25/2019 Lecture 1 Protists

3/15

Rooted vs. #nrooted $ree

Related%ranches(clade

7/25/2019 Lecture 1 Protists

4/15

&Pro'aryotes vs.Eu'aryotes

7/25/2019 Lecture 1 Protists

5/15

$he Endosym%iosis)ypothesis

7/25/2019 Lecture 1 Protists

6/15

$he Protists

Protozoa Unicellular alga

Slime molds

http://tolweb.org/Eukaryotes/3

7/25/2019 Lecture 1 Protists

7/15

Phylogeny

http://tolweb.org/Eukaryotes/3http://tolweb.org/Eukaryotes/3http://tolweb.org/Eukaryotes/3http://tolweb.org/Eukaryotes/3

7/25/2019 Lecture 1 Protists

8/15

Proto*oa

7/25/2019 Lecture 1 Protists

9/15

Amoe%a: )uman PathogensAcanthamoeba

7/25/2019 Lecture 1 Protists

10/15

+lagellates: )umanPathogens

Trypanosoma brucei: A,rican sleepingsic'ness

Trypanosoma cruzi: South American

sleeping sicknessGiardia lamblia: nausea" gastric cramps"

-atery diarrhea

Trichomonas vaginalis: seually

transmitted diseaseLeishmania tropica: leishmaniasis

7/25/2019 Lecture 1 Protists

11/15

Trypanosoma cruzi: South Americansleeping sickness

Bacteria: Rhodococcus rhodniiDrug: Cecropin A.

i

7/25/2019 Lecture 1 Protists

12/15

ratransgenesis

Drug: Cecropin A.

Bacteria:Rhodococcus rho

Flagellate:Trypanosoma cruzi

7/25/2019 Lecture 1 Protists

13/15

/iliates )uman Pathogens:Balantidium coli

7/25/2019 Lecture 1 Protists

14/15

!pora*oa: )umanPathogens

Plasmodium: genus o, sporo*oa thatcauses malaria

Toxoplasma gondii: cause of

toxoplasmosisPnuemocystis carinii: pneumonia"

especially A0D! patients

Cryptosporidium coccidi: vomiting"diarrhea" etc

Cyclospora cayetanensis: intestinalillness

7/25/2019 Lecture 1 Protists

15/15

oxoplasma gondii

http://www.stanleyresearch.org/dnn/LaboratoryofDevelopmentalNeurovirology/ToxoplasmosisSchizophreniaResearch/tabid/172/Default.aspxhttp://www.stanleyresearch.org/dnn/LaboratoryofDevelopmentalNeurovirology/ToxoplasmosisSchizophreniaResearch/tabid/172/Default.aspxhttp://www.stanleyresearch.org/dnn/LaboratoryofDevelopmentalNeurovirology/ToxoplasmosisSchizophreniaResearch/tabid/172/Default.aspx