Co kab mob. Lub neej tsis muaj ntshiab oxygen

Co kab mob muaj peev xwm tsim nyob rau hauv lub qhaj ntawv ntawm free oxygen nyob rau hauv lub cheeb tsam. Ua ke nrog rau lwm cov kab mob muaj xws li ib tug cim vaj tse, lawv yog ib cov chav kawm ntawv ntawm anaerobes. Nws muaj ob hom ntawm anaerobes. Raws li facultative thiab obligate co kab mob muaj peev xwm yuav nrhiav tau nyob rau hauv yuav luag tag nrho cov nrws ntawm pathologic khoom zog, lawv yog nrog los ntawm ntau yam pyo-inflammatory kab mob tej zaum yuav opportunistic thiab txawm puav pathogenic.

Co kab mob teej tug mus rau lub yeem ua ib ke thiab muab nyob rau hauv cov pa, thiab cov pa-free ib puag ncig. Qhov tseem pronounced cov neeg sawv cev ntawm cov hoob kawm no yog E. coli, Shigella, Staphylococcus, Yersinia, streptococci thiab lwm yam kab mob.

Obligate kab mob tsis ciaj sia nyob rau hauv lub xub ntiag ntawm free oxygen thiab tuag los ntawm nws cov teebmeem. Cov thawj pab pawg neeg nyob rau hauv lub hoob no yuav sawv cev anaerobes spore txoj kev kab mob los yog clostridia, thiab lub thib ob kab mob tsis noob (non-clostridial anaerobes). Clostridia yog feem ntau causative ua hauj lawm ntawm co kab mob ntawm lub tib lub npe. Ib qho piv txwv tej zaum yuav ua tau ib tug clostridial txhab kab mob, botulism, tetanus. Tsis-clostridial anaerobes yog Gram-zoo thiab Gram-tsis zoo kab mob. Lawv yog cov pas nrig-zoo li tus los yog kheej kheej zoo lawm, rau kom koj ua tau raws li nyob rau hauv cov ntawv nyeem lub npe ntawm lawv cov brightest cov neeg sawv cev: Bacteroides, veyllonelly, fuzobakterii, peptokokki, propionibacteria, peptostreptokokki, eubacteria, thiab lwm tus neeg.

Tsis-clostridial kab mob, lub ib thooj ib feem ntawm lub cev microflora nyob rau hauv tib neeg thiab tsiaj. Lawv kuj koom nyob rau hauv txoj kev loj hlob ntawm inflammatory dab. Cov no muaj xws peritonitis, mob ntsws, mob ntsws rwj thiab lub hlwb, empyema, sepsis, cellulitis maxillofacial cheeb tsam, otitis media, thiab lwm yam Rau tej kab mob, uas ua rau uas tsis yog-clostridial co kab mob hom, yam ntxwv sau lub thaj chaw ntawm endogenous .. Lawv tsim mas vim qis kuj tau tus kab mob, uas muaj peev xwm ua tau los ntawm kev raug mob, cua txias, kev phais, kev ntshawv siab ntawm lub cev.

Rau ib tug piav qhia ntawm ib tug qauv rau kev tswj co ntawm lub neej nws yog tsim nyog los nkag siab txog cov tswv yim yooj yim los ntawm cov uas muaj aerobic thiab co respiration.

Aerobic ua pa yog lub oxidation txheej txheem raws li cov kev siv ntawm oxygen. Ua pa ua rau cleavage ntawm lub substrate tsis muaj ib tug residue, qhov tshwm sim yog tsaus rau cov neeg pluag zog cov neeg sawv cev inorganics. Cov no ib tug haib zog tso zis. Raws li cov tseem ceeb tshaj plaws substrates rau kev ua pa ua carbohydrates tab sis kuj cov nqaijrog thiab nqaijrog yuav consumed nyob rau hauv tus txheej txheem ntawm aerobic respiration.

Nws sau raws nkaus Ii ob kauj ruam txaus. Nyob rau hauv thawj anoxic txheej txheem yuav siv sij hawm qhov chaw progressively substrate cleavage kom tso cov hydrogen atoms ruaj rau lub coenzymes. Ob, cov pa theem, nrog ntxiv cleavage ntawm lub hydrogen atoms ntawm lub substrate rau kev ua pa thiab nws gradual oxidation.

Co pa siv co kab mob. Lawv yog siv rau lub oxidation ntawm pa substrate tsis molecular oxygen, thiab ib daim ntawv teev oxygenated tebchaw. Cov no tej zaum yuav ntsev ntawm sulfuric, nitric, carbonic acids. Thaum lub sij hawm co pa lawv ua txo tebchaw.

Co kab mob nqa ib ua tsis taus pa li ib tug zaum kawg electron acceptor, oxygen yog tsis siv, thiab cov inorganic substance. Raws li teej tug mus rau ib tug tej yam hauv chav kawm ntawv muaj ntau ntau hom ntawm co pa: kev ua pa thiab nitrification nitrate, sulfate thiab leej faj ua tsis taus pa, "hlau" ua tsis taus pa, ua tsis taus pa ntawm ib tug carbonate, fumarate respiration.