MindMap Gallery Mycoplasma mind map
This is a mind map about mycoplasma, medical microorganisms, including Mycoplasma pneumoniae, Ureaplasma, Mycoplasma genitalium, Mycoplasma penetratus, etc.
This is a mind map about bacteria, and its main contents include: overview, morphology, types, structure, reproduction, distribution, application, and expansion. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about plant asexual reproduction, and its main contents include: concept, spore reproduction, vegetative reproduction, tissue culture, and buds. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about the reproductive development of animals, and its main contents include: insects, frogs, birds, sexual reproduction, and asexual reproduction. The summary is comprehensive and meticulous, suitable as review materials.
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Mycoplasma
biological properties
form
Highly polymorphic
Giemsa stain shows lavender color (Gram stain is negative but difficult to stain)
The smallest microorganism on a non-living medium
structure
basic structure
cell membrane
Outer layer
protein sugar
middle level
Lipids (mainly phospholipids, including cholesterol)
Substances that act on cholesterol (saponin, digitonin, amphotericin B) can damage the cell membrane and cause its death
inner layer
cytoplasm
Nucleoplasm
special structure
biofilm
Anti-phagocytosis
Special top structure
adhere to host cell surface
Training requirements
Higher nutritional requirements
Serum (provides cholesterol), yeast stain, tissue dip
ph<7 will cause death (the optimal pH for Ureaplasma urealyticum is 5.5~6.5)
facultative anaerobic
Growth is best in a microaerobic environment (5% CO2 and 90% N2)
Solid medium for 2 to 7 days - fried egg-like colonies will grow
Liquid culture medium—clear
Similarities and Differences between Mycoplasma and L-type Bacteria
same
Lack of cell wall, diverse shapes, able to pass through bacterial filters
Omelette-like appearance on agar medium
Clinical manifestations are similar: interstitial pneumonia, genitourinary tract infection, infertility
different
Antigen and antibody
Antigen specific, less crossover, and identification significance
Complement fixation test—detection of glycolipid antigens
ELISA test—detection of protein antigens
Antibody
Growth inhibition test GIT
metabolic inhibition test MIT
tolerate
Antibiotics (penicillin, crystal violet, thallium acetate, potassium antimonite)
Classification
Mycoplasma pneumoniae
biochemical reaction
Can ferment glucose, cannot utilize arginine and urea, and can produce hydrogen peroxide
Pathogenicity
Exotoxins
Community Acquired Respiratory Distress Syndrome Toxin (CARDS)
activate inflammasome
disease
Primary SARS/Mycoplasma Pneumonia
Transmitted by droplets
mechanism
Uptake of lipids and cholesterol during growth to damage host cell membranes
hypersensitivity reaction
Ureaplasma
Decomposes urea but not carbohydrates and arginine
Opportunistic pathogens
Sexual contact transmission
Nongonococcal urethritis, cervicitis, pelvic inflammatory disease, urinary tract stones
Mycoplasma genitalium
Can ferment glucose but cannot decompose urea
Male infertility, metritis, cervicitis, pelvic inflammatory disease
penetrating mycoplasma
co-causing factors of AIDS