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Video: Yuav ua li cas indole xeem?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov indole xeem yog biochemical xeem tau ua ntawm cov kab mob los txiav txim siab lub peev xwm ntawm lub cev los hloov tryptophan rau hauv indole . Qhov faib no yog ua tau los ntawm cov saw ntawm tus lej sib txawv ntawm cov kab mob intracellular, ib qho system feem ntau hu ua "tryptophanase."
Kuj nug, yog vim li cas indole xeem?
Indole xeem yog siv los txiav txim siab lub peev xwm ntawm lub cev los faib cov amino acid tryptophan los tsim cov compound indole . Tryptophan yog hydrolysed los ntawm tryptophanase los tsim peb yam khoom siv tau - ib qho uas yog indole . Indole xeem yog ib qho uas nquag siv biochemical xeem (xws li hauv IMVIC xeem , SIM ib xeem thiab lwm yam).
Qhov thib ob, Kovac qhov tshuaj reagent rau dab tsi? Cov reagent yog biochemical reagent muaj cov isoamyl cawv, para-dimethylaminobenzaldehyde (DMAB), thiab concentrated hydrochloric acid. Nws yog siv rau kev kuaj mob indole test, ua txiav txim siab lub peev xwm ntawm lub cev los cais indole los ntawm cov amino acid tryptophan.
Ntawm no, indole ntau lawm xeem yog dab tsi?
Rau sim rau indole ntau lawm , ntxiv 5 tee ntawm Kovács reagent ncaj qha mus rau lub raj (3, 5). Qhov zoo indole xeem yog qhia los ntawm kev tsim ntawm liab mus rau xim liab ("cherry-liab nplhaib") nyob rau hauv lub reagent txheej nyob rau sab saum toj ntawm nruab nrab nyob rau hauv vib nas this ntawm ntxiv cov reagent (Fig.
Ob lub xov xwm twg tuaj yeem siv los kuaj rau indole?
Muaj ob media uas yog siv rau qhov no xeem : Sulfide tau Indole -Motility (SIM) nruab nrab thiab Tryptone broth nruab nrab.
Pom zoo:
Dab tsi yog qhov kev xeem hloov pauv pej xeem xeem?
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Yog tus qauv dav dav ntawm cov pej xeem hloov pauv los ntawm kev yug me nyuam thiab kev tuag siab mus rau kev yug me nyuam thiab kev tuag tsawg, thiab tau pom nyob rau hauv keeb kwm ntawm ntau lub teb chaws tsim. Txoj kev xav tom qab kev hloov pauv pej xeem yog kev tsim khoom lag luam ua rau muaj kev lag luam thiab kev vam meej hauv zej zog uas tom qab ntawd cuam tshuam rau cov pej xeem kev nce nqi
Yuav ua li cas cov kws kho mob hlwb paub txog kev xeem ntawv xeem?
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Ib tus neeg paub txog cov xwm txheej sab nraud thiab kev nkag siab sab hauv nyob rau qhov xwm txheej ntawm kev npau taws, suav nrog kev paub ntawm tus kheej thiab kev xav txog ib tus kev paub dhau los, nrog rau lub cev thiab kev xav
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Kev ntsuam xyuas indole yog ib txoj kev zoo rau kev txiav txim siab lub peev xwm ntawm cov kab mob los tsim indole los ntawm deamination ntawm tryptophan. Siv txoj hauv kev Kovacs raj, indole sib xyaw ua ke, thaum muaj cov tryptophan nplua nuj nruab nrab, nrog p-Dimethylaminobenzaldehyde ntawm cov kua qaub pH hauv cawv kom tsim cov xim liab-violet
Cov xov xwm twg yog siv rau kev xeem indole?
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Kev ntsuam xyuas indole yog ib txoj kev zoo rau kev txiav txim siab lub peev xwm ntawm cov kab mob los tsim indole los ntawm deamination ntawm tryptophan. Siv txoj hauv kev Kovacs raj, indole sib xyaw ua ke, thaum muaj cov tryptophan nplua nuj nruab nrab, nrog p-Dimethylaminobenzaldehyde ntawm cov kua qaub pH hauv cawv kom tsim cov xim liab-violet
Vim li cas peb thiaj li xeem indole?
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Kev ntsuam xyuas Indole yog siv los txiav txim siab lub peev xwm ntawm lub cev los cais cov amino acid tryptophan los tsim cov khoom sib xyaw indole. Tryptophan yog hydrolysed los ntawm tryptophanase los tsim peb cov khoom kawg - ib qho yog indole. Kev sim Indole pab ua kom sib txawv ntawm Enterobacteriaceae thiab lwm yam tsiaj