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MCB 3020 Vandy > Lectures 24-30 > Flashcards

Lectures 24-30 Flashcards

1
Q

Spirochetes

A

5 genera: Spirochaeta, Christispira, Treponema, Borrelia, Leptospira.
Gram neg, outer sheath surrounds protoplasmic cylinder and periplasmic flagella.

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2
Q

Spirillum

A

Genus, among largest bacteria, marine enviromemts, recycling matter

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3
Q

Campylobacter

A

Genus, C. jejuni ->causes gastroenteritis

this gram neg, penetrates mucous membrane of small intestine.

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4
Q

Bdellovibrio

A

Genus, parasitic towards gram neg, lives in the periplasmic space.

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5
Q

Treponema pallidum

A

syphillis- associated w/DNA probe

causes tabes dorsalis

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6
Q

DNA Probe

A

Small segment of DNA that are specific and useful with organisms that are hard to culture in lab.

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7
Q

Treponema pertenue

A

yaws, non sexual

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8
Q

Treponema carateum

A

hyperpigmentation, non sexual

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9
Q

Borrelia burgdorferi

A

lyme disease via tick bite

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10
Q

Leptospira inteerogans

A

leptospirosis, flu like symptons and liver disease

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11
Q

Pseudomonadaceae

A

gram neg polar flagellated straight or curved rods.

Use variety carbon sources–> environmental clean up.

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12
Q

P. aeruginosa

A

common soil and water organism, burn victims susceptible.
Two pigments pyoverdin(siderophore) and pyocyanin (bluegreen pig) that grows at 42 degrees Celsius.
Oxidase positive

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13
Q

P. putida

A

non pathogenic, cleanup

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14
Q

P. syringe

A

plant pathogen

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15
Q

P. cepacia

A

pathogen found in humans and plants

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16
Q

X. campestris

A

tomato pathogen

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17
Q

X. campestris pathovar citri

A

causes citrus canker but not in Florida

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18
Q

Methylomonadaceae

A

Family composed of Gerea: Methylomonas,Methylococcus use 1-C compounds ie methane methanol formaldehyde.

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19
Q

Azotobacteraceae

A

Azotobacter-large ovoid cells with high respiration rate

nonsymbiotically fixes N

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20
Q

Rhizobiaceae

A

Rhizobium
symbiotically fixes nitrogen into ammonia in legumes, beans etc.
Oxygen sensitive nitrogenase

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21
Q

Neisseria gonorrhoeae

A

gram negative aerobic coccus, sexually transmitted.

Oxidase positive and require increase co2 to grow along with Aacids, vitamins, hemoglobin.

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22
Q

Neisseria meningitidis

A

causes meningitis in children.

Oxidase positive and require increase co2 to grow along with Aacids, vitamins, hemoglobin.

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23
Q

Brucella

A

infectious abortion in cattle

24
Q

Bordetella

A

whooping cough

25
Francisella
tularemia, infectious disease in rabbits, transmittable to humans
26
Bacteroides
anaerobic. most common organism in human feces
27
Fusobacterium
anaerobic. common in oral cavity causes periodontal disease.
28
Desulfovibrio
anaerobic bacteria reduce sulfur, corrodes iron pipe and produces hydrogen sulfide gas.
29
Rickettsia and Chylamydia
Bacteria that are obligate intracellular parasites. They contain both DNA and RNA, have a cell wall similar to the Gram negative cell. They divide by binary fission and are susceptible to antibiotics. The Rickettsia are transmitted through the bite of a louse, flea, tick, or mite.
30
Pasteurellaceae
Black Plague aka Yersina pestis
31
Rocky Mountain Spotty Fever
found in SE, flu-like, treated with tetracycline
32
R-typhus
caused by louse. fatal.
33
C psittacosis
contact w/infected birds
34
C trachomatis
infects eye and degrades cornea, fatal.
35
Mycoplasmas
smallest free living organisms. Do not have cell wall, do not produce there own sterols. Mycoplasma pneumoniae- causes primary atypical pneumonia. Penicillin is NOT effective.
36
Streptococcus pyogenes
gram positive cocci. | Causes scarlet and rheumatic fever, endocarditis, pneumonia, pharyngitis, necrotizing fascitis
37
Staphylococcus
gram positive cocci, catalase positive. S. epidermis- nonpath S.aureus- causes impetigo, osteomylitis, toxic shock, food poisoning.
38
Micrococcus
gram positive cocci in tetrads. | Respire glucose do NOT ferment it.
39
Bacillus sp.
gram positive aerobic rods. Produce enzymes and antibiotics, and are biopesticides. B. anthracis- anthrax
40
Clostridium
Gram positive aerobic rods. | Causes botulism, gas gangrene, tetnus.
41
Lactobacillus
Yogurt fermentation
42
Corynebacterium diphtheriae
Irregular nonsporulating G positive rod. Contain polyphosphate granules. Many are non pathogenic.
43
Propionibacterium
swiss cheese fermentation and silage.
44
Mycobacterium
rod shaped to filamentous bacteria ACID FAST->huge amount of lipids in cell wall Cause tuberculosis and leprosy
45
Oscillatoria
oxygenic photosynthetic bacteria...Red Sea
46
Prochlorophyta
aka picoplankton Along with cyanobacteria a type of oxygenic photosynthetic bacteria. Contain chlorophyll a and b, do not have phycobilins which is why they appear green and not blue green. Have thylakoids with double membranes (cyano-single)
47
Chemolithotrophic Aerobic Bacteria
Nitrifiers, colorless S bacteria, obligate hydrogen bacteria, Fe/Mn oxidizers, magnetic bacteria.
48
Nitrifiers
These bacteria oxidize ammonia to nitrite and nitrite to nitrate. Ammonia to nitrite, nitrosfying bacteria, Nitrosomonas, Nitrosospira, Nitrosococcus, Nitrosolobus. Nitrifying bacteria, nitrite oxidized into nitrate, Nitrobacter, Nitrospina, Nitrococcus.
49
Thiobacillus ferrooxidans
Usually found in acid environments, low pH. The oxidize reduced sulfur to sulfate. Oxidizes reduced sulfur.
50
Hydrogen oxidizer bacteria
Hydrogenobacter, uses H2 as a electron donor and O2 as an electron acceptor to produce H2O.
51
Bacteria that oxidize metals or make metal deposits
Siderocapsa, Siderococcus
52
Aquaspirillum
Ex of Magnetotatic bacteria. Demonstrate directed movement in magnetic field. Synthesize intracellular crystals of magnetite
53
budding bacterium
Hyphomicrobium
54
sheathed bacteria
Gram negative bacteria arranged as chains within filaments surrounded by outer sheaths. Live in sewage, reproduce by binary fission with the release of daughter cells called swarmer cells, Sphaerotilus.
55
Cytophaga
Nonphotsynthetic non fruiting gliding bacteria that digest cellulose chitin agar and sometimes is a fish pathogen
56
Beggiatoa
Nonphotsynthetic non fruiting gliding bacteria with long filaments lives in sulfur springs

MCB 3020 Vandy (3 decks)

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