Taxonomy Flashcards
Phylum: Firmicutes
Class: Clostridia
Order:
?
Family: Eubacteriaceae
Genus: Eubacterium
Species: E. hallii
Order: Clostridiales
Phylum: ?
Class: Clostridia
Order:
Clostridiales
Family: Eubacteriaceae
Genus: Eubacterium
Species: E. hallii
Phylum: Firmicutes
Phylum: Fusobacteria
Class:
?
Order: Fusobacteriales
Family: Fusobacteriaceae
Genus: Fusobacterium
Species: F. nucleatum
Class: Fusobacteriia
Phylum: Fusobacteria
Class:
Fusobacteriia
Order: ?
Family: Fusobacteriaceae
Genus: Fusobacterium
Species: F. nucleatum
Order: Fusobacteriales
How do the “order” names end?
“ales”
How to the “family” names end?
“aceae”
How are the species names written?
Capital letter, full stop, and then rest in italics
Phylum: Firmicutes
Class: Clostridia
Order: Clostridales
Family:
?
Genus: Blautia
Species: B. coccoides
Family: Lachnospiraceae
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Lactobacillaceae
Genus:
?
Species: P. pentosaceus
Pediococcus
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family:
?
Genus: Limosilactobacillus
Species: L. reuteri
Family: Lactobacillaceae
Phylum: Actinobacteria
Class: Actinobacteria
Order: Bifidobacteriales
Family: Bifidobacteriaceae
Genus:
?
Species: B. longum
Genus: Bifidobacterium
Phylum: Firmicutes
Class:
?
Order: Lactobacillales
Family: Lactobacillaceae
Genus: Lacticaseibacillus
Species: L. casei
Class: Bacilli
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Lactobacillaceae
Genus:
?
Species: L. paracasei
Genus: Lactobacillus
Phylum:
?
Class: Clostridia
Order: Clostridiales
Family: Ruminococcaceae
Genus: Faecalibacterium
Species: F. prausnitzii
Phylum: Firmicutes
What comes first: phylum, class or order?
Phylum
What comes second: order, class or family?
Class
Phylum:
?
Class: Actinobacteria
Order: Bifidobacteriales
Family: Bifidobacteriaceae
Genus: Bifidobacterium
Species: B. animalis
Strain: B. animalis subsp. lactis BB-12
Phylum: Actinobacteria
Phylum: Bacteroidetes
Class: Bacteroidia
Order: Bacteroidales
Family: ?
Genus:
Prevotella
Species: P. copri CB-7
Prevotellaceae
Phylum: Verrucomicrobia
Class: Verrucomicrobiae
Order: Verrucomicrobiales
Family:
?
Genus: Akkermansia
Species: A. muciniphila Muc ATCC BAA-835T
Akkermansiaceae
Phylum:
Bacteroidetes
Class: Bacteroidia
Order: Bacteroidales
Family: Bacteroidaceae
Genus:
?
Species: B. fragilis
Genus: Bacteroides
Phylum: Proteobacteria
Class:
?
Order: Enterobacteriales
Family: Enterobacteriaceae
Genus: Escherichia
Species: E. coli
Strain: E. coli Nissle
Class: Gammaproteobacteria
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Lactobacillaceae
Genus:
?
Species: L. plantarum
Strain: L. plantarum 299v
Genus: Lactobacillus
Is it gram positive or gram-negative bacteria that have an outer membrane covered with lipopolysaccharides (LPS)?
Gram negative
What does LPS consist of which is an endotoxin?
lipid A
What is the taxonomic classification of E. coli ATCC?
■ Proteobacteria (phylum)
■ Gammaproteobacteria (class)
■ Enterobacteriales (order)
■ Enterobacteriaceae (family)
■ Escherichia (genus)
■ Escherichia coli (species)
■ Escherichia coli ATCC 11775T (strain)
What is always written in italics?
The family, genus and species name is always
written in italic letters, when written by hand they are underlined
What always starts with a capital letter?
The genus name always starts with a capital letter,
species do not
What does sp. or
spp. mean?
(species, singular) and (species, plural)
What is a species?
A bacterial species is a collection of strains that share many stable properties (house-keeping genes) and differ significantly
from other groups of strains.
Mention some phyla
Acidobacteria
■ Actinobacteria
■ Aquificae
■ Armatimonadetes
■ Bacteroidetes
■ Caldiserica
■ Chlamydiae
■ Chlorobi
■ Chloroflexi
■ Chrysiogenetes
■ Cyanobacteria
■ Deferribacteres
■ Deinococcus-Thermus
■ Desulfobacteria
■ Dictyoglomi
■ Elusimicrobia
■ Fibrobacteres
■ Firmicutes
■ Fusobacteria
■ Gemmatimonadetes
■ Ignavibacteriae
■ Lentisphaerae
■ Nitrospirae
■ Planctomycetes
■ Proteobacteria
■ Spirochaetes
■ Synergistetes
■ Tenericutes
■ Thermodesulfobacteria
■ Thermomicrobia
■ Thermotogae
■ Verrucomicrobia
Which are the important phyla?
Firmicutes
Actinobacteria
Cyanobacteria
Bacteroidetes
Fusobacteria
Proteobacteria
Verrucomicrobia
Give a taxonomic classification of an actinobacteria
Actinobacteria
Actinobacteria
Bifidobacteriales
Bifidobacteriaceae
Bifidobacterium
Bifidobacterium animalis
B. animalis BB12
Does actinobacteria consist of mostly Gram positive?
Yes
Does Bifidobacteria belong in the Actinobacteria phylum?
Yes
Taxonomic classification of Prevotella
Bacteroidetes
Bacteroidetes
Bacteroidales
Prevotellaceae
Prevotella
Prevotella copri
P. copri CB7
Is Bacteroidetes mostly gram negative?
Yes
Taxonomic classification of cyanobacteria
Cyanobacteria
Cyanophyceae
Oscillatoriales
Microcoleaceae
Arthrospira
Arthrospira platensis
Is cyanobacteria gram negative?
Yes
Give a taxonomic classification of 299V
Firmicutes
Bacilli
Lactobacillales
Lactobacillaceae
Lactobacillus
Lactobacillus plantarum
L. plantarum 299v
Are the firmicutes mostly gram positive?
Yes
Are fusobacteria gram negative?
Yes
Give a taxonomic classification of a fusobacteria
Fusobacteria
Fusobacteriia
Fusobacteriales
Fusobacteriaceae
Fusobacterium
Fusobacterium nucleatum
F. nucleatum VPI 4355
Give taxonomic classification of E.coli
Proteobacteria
Gammaproteobacteria
Enterobacteriales
Enterobacteriaceae
Escherichia
Escherichia coli
Escherichia coli ATCC 11775T
Are proteobacteria gram negative?
Yes
Is proteobacteria part of the normal flora?
Yes
Give a taxonomic classification of akkermansia
Verrucomicrobia
Verrucomicrobiae
Verrucomicrobiales
Akkermansiaceae
Akkermansia
A. muciniphila
A. muciniphila Muc ATCC BAA-835T
Is Verrucomicrobia gram negative?
Yes
What are the characteristics of LAB?
– Gram-positive
– Ferment sugars to lactic acid (mainly)
– Catalase negative
– Non-motile
– Unable to form endospores
– Able to grow at pH less than 5.5
– Non-pathogenic
– Lactobacillus, Pediococcus, Weissella, Leuconostoc, Oenococcus, Lactococcus, Streptococcus
thermophilus
Mention an example of a homofermentative LAB
L. acidophilus. Substrate: yeast extract in fermented milk.
Mention an example of a obligatory heterofermentative LAB
L. reuteri
Produces anti-microbial substance reuterin.
Found in GI tract.
Mention an example of a facultative heterofermentative LAB
L. plantarum
What is a homofermentative LAB?
Only produces lactic acidd
What is a heterofermenatative LAB?
Produces lactic acid, CO2, acetic acid, ethanol