MindMap Gallery Four bodies
This picture introduces the biological characteristics, pathogenic mechanisms, pathogenicity and other knowledge of the four bodies: mycoplasma, chlamydia, rickettsia, and spirochetes. If you are interested, you can take a look.
Edited at 2023-10-27 18:32:01This 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.
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.
Four bodies
Mycoplasma
Biological traits
G-, pleomorphic, 0.2−0.3μm, no cell wall, highly pleomorphic, filterable
Nurture characteristics
The smallest prokaryotic microorganism that can grow and reproduce in artificial culture media
''Omelette''-like colonies
Pathogenic substances
Adhesins, lipoproteins, toxic metabolites, biofilms
Pathogenicity
Ureaplasma urealyticum
nongonococcal urethritis
Mycoplasma pneumoniae
Primary atypical pneumonia/interstitial pneumonia
Chlamydia
Biological traits
G-, spherical, 0.2−0.4μm
Pathogenic mechanism
The protozoa adsorbs the host cell → engulfs and invades → turns into reticulosomes in the phagosome → binary fission and transforms into a large number of reticulosomes → reticulosomes condense to form protozoa → endocytosis reaction → protosome release
unique developmental cycle
primary body, reticular body
Pathogenic substances
endotoxin
Pathogenicity
EB
Small, dense, spherical or oval, mature chlamydia, contagious and non-reproductive
reticular body (RB)
Large, loose, round or oval, non-infectious, reproductive type
Chlamydia trachomatis
Chlamydia trachomatis - trachoma, inclusion conjunctivitis, genitourinary tract infection, lymphogranuloma venereum
Chlamydia pneumonia/Chlamydia psittaci
chlamydial pneumonia
Disease caused
Trachoma, inclusion conjunctivitis, genitourinary tract infection (NGU, cervicitis), lymphogranuloma venereum, chlamydial pneumonia, etc.
Immunity
Immunity is short-lived and prone to persistent and repeated infections
Rickettsia
Biological traits
G-, club mounted, (0.2-0.6)μm×(0.8-2.0)μm0.2-0.4μm, binary fission reproduction, strict intracellular parasitism
Pathogenic mechanism
Bacteremia (rickettsemia) → vasculitis
Zoonoses, arthropods are the vector of transmission
Pathogenicity
Rickettsia prowazekii
Disease caused
epidemic typhus
Source of infection
people
vector insect
human lice
Main clinical manifestations
Fever, headache, rash, damage to nervous system and cardiovascular system
Orientia scrub typhus
Disease caused
scrub typhus
Source of infection
Rodents
vector insect
chiggers
Main clinical manifestations
Local black eschar, fever, headache, rash, internal organ damage
Rickettsia typhus
Disease caused
endemic typhus
Source of infection
Rodents
vector insect
rat fleas
Main clinical manifestations
Fever, headache, rash
serology test
Weil Felix reaction (common antigen of Rickettsia and Proteus)
spirochetes
Biological traits
G-, slender and curved, (0.1-0.2)μm-(6-40)μm, active in movement
Pathogenicity
Borrelia
spiral
epidemic typhus
Example
people
disease
human lice
Orientia scrub typhus
Disease caused
scrub typhus
Source of infection
Rodents
vector insect
chiggers
Main clinical manifestations
Local black eschar, fever, headache, rash, internal organ damage
Rickettsia typhus
Disease caused
endemic typhus
Source of infection
Rodents
vector insect
rat fleas
Main clinical manifestations
Fever, headache, rash