Talk:Atypical bacteria
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For whoever reads this article: Are these sources alright? I'll take them down if not.. But I found similar information on a dozen websites, and similar grouping patterns of the organisms which are referred to here as "antibacterial" within Prescott's Microbiology book, written by Willey/Sherwood/Woolverton, 8th edition, published by McGraw-Hill, a business unit of The McGraw-Hill Companies, Inc., 1221 Avenue of the Americas, New York, NY 10020. Copyright 2011. Oh, but the book did not explicitly call the group atypical bacteria. It is so challenging to find useful information! But it's kind of fun! Anyway, any advice would be appreciated. (Thanks)
anyway, the websites I found were of the following, with what I expect a few being potentially weak (I added there claims underneath):
http://www.reference.md/files/D001/mD001295.html
Definition: Microorganisms that have undergone greater changes than normal in morphology, physiology, or cultural characteristics.
http://www.coursehero.com/flashcards/435796/atypical-bacteria-fungi-asexual-reproduction/
Atypical bacteria
Mycoplasma pneumonia, Richsettia Rickittii, chlymydia trachomatis
http://quizlet.com/13434233/micro-lec-6bio-of-atypical-bacteria-fungi-intro-flash-cards/
Atypical bacteria: Mycoplasma, Rickettsiae, Anaplasma & Coxiella & Chlamydiada
http://www.sglearnonline.com/atypical-bacteria.html
- Atypical Bacteria
- A brief summary about the typical characteristics of bacteria:
- cell wall (containing peptidoglycan)
- cell membrane
- no nuclear membrane
- reproduce by cell fission
- susceptible to antibiotics, but not to antifungal agents
- Atypical bacteria
- In this section, we will discuss:
- fungus-like bacteria (streptomyces sp. and actinomyces sp.)
- acid-fast bacteria
- mycoplasmas
- chlamydias
- rickettsias
- Fungus-like bacteria
- shape: filamentous
- gram posititve bacilli that form branching filaments
- prokaryotic
- Fungus-like bacteria examples
- Streptomyces spp.:
- These are the most important source of antibiotics
- one of the most commonly isolated from soil
- the asexual spores-condiospores are capable of germinating into new colonies
- near 500 described species within this genus
- Actinomyces spp.:
- These can be found in the mouth and throat of humans and animals
- They have branching filaments and spore-case(sporangium)
- spores: sporangiospores
- Why are fungus-like bacteria not classified as fungi?
- They have no membrane-bound organelles
- example: mitochondria, nucleus
- They reproduce by cell fission
- They are susceptible to penicillin, but not to antifungal agents
- Acid-fast bacteria
- gram positive bacilli with waxy coat on cell wall
- cell wall structure is similar to gram negative cell wall,
- Mycolic acids replace the outermost lipopolysaccharide layer, forming a waxy, water-resistant coat
- wax helps improve the chance of survival in its environment
- Acid-fast bacteria example
- mycobacterium spp.
- Have a slow growth rate
- sometimes takes weeks to form visible colonies
- common species
- M. tuberculosis (tuberculosis)
- M. leprae (leprosy)
- The organism is an obligate intra-cellular parasite that lacks many necessary genes for independt survival.
- The complex and unique cell wall that makes members of the mycobacterium genus difficult to destroy is apparently also
- M. ulcerans (buruli ulcer)
- M. ulcerans: the ulcerative condition on the skin and subcutaneous fat cells
- increasing in world; the actual transmission is unknown
- Mycobacteria with acid fast stain
- Mycoplasmas
- They are the smallest known bacteria
- Because of their small size, they can easily pass through filters
- They are the only prokaryotes that lack a cell wall and contain sterols in their cytoplasmic membrane
- Therefore, they are highly pleomorphic
- They produce filaments that can resemble fungi
- myco = filamentous;
- plasma= fluid
- Mycoplasmas are the smallest microorganisms that can independently grow on a cell-free medium
- Example of Mycoplasmas
- M. pneumoniae
- The most significant human pathogen of this genus: M. pneumoniae
- Causes common mild form of pneumonia
- Indented line
I need someone to tell me if some of these are ok or not. I spent quite a bit of time on this, and just wanted to
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