Qhov sib txawv tseem ceeb ntawm auxotrophs thiab prototrophs yog tias auxotrophs yog cov kab mob mutant uas tau poob lub peev xwm los tsim ib qho organic compound uas xav tau rau lawv txoj kev loj hlob thaum prototrophs yog cov kab mob qus uas muaj peev xwm tsim tau tag nrho cov organic compounds.
Cov kab mob microorganisms qhia ntau hom kev noj haus. Tshwj xeeb, cov kab mob muaj peev xwm sib txawv. Qee cov kab mob muaj peev xwm ntawm photosynthesizing thiab tsim lawv tus kheej cov zaub mov thaum qee cov kab mob nyob hauv symbiotic kev sib raug zoo nrog lawv cov kab mob thiab tau txais cov as-ham. Tsis tas li ntawd, qee cov kab mob degrade organic teeb meem thiab tau txais cov as-ham. Auxotrophs thiab prototrophs yog ob pawg ntawm cov kab mob uas sib txawv raws li lawv lub peev xwm los tsim cov organic tebchaw rau lawv txoj kev loj hlob. Prototrophs tuaj yeem ua ke tag nrho cov organic tebchaw uas xav tau rau lawv txoj kev loj hlob thaum autotrophs tsis tuaj yeem tsim cov organic compound uas yog qhov tseem ceeb rau nws txoj kev loj hlob vim muaj kev hloov pauv.
Auxotrophs yog dab tsi?
Auxotrophs yog cov kab mob mutant, tshwj xeeb tshaj yog cov kab mob mutant. Lawv tau poob lawv lub peev xwm los tsim cov organic compound xws li amino acid, nucleotide, vitamin, thiab lwm yam, uas yog qhov tseem ceeb rau lawv txoj kev loj hlob. Kev hloov pauv yog lub luag haujlwm rau qhov poob ntawm qhov peev xwm no. Yog li ntawd, cov kab mob no tsis tuaj yeem tsim qee cov organic tebchaw, tsis zoo li prototrophs lossis lawv hom tsiaj qus. Yog li ntawd, thaum loj hlob auxotrophs nyob rau hauv kab lis kev cai xov xwm, nws yog tsim nyog los muab ib tug tshwj xeeb kev loj hlob tshuaj tshaj qhov tsawg kawg nkaus yuav tsum tau rau ib txwm metabolism thiab reproduction nyob rau hauv sib piv rau cov qus hom hom ntawm lawv.
Daim duab 01: Auxotrophy
Lo lus "auxotrophy" yog siv tshwj xeeb hauv kev cuam tshuam rau ib qho kev sib xyaw. Piv txwv li, methionine auxotroph yog hais txog cov kab mob uas tsis tuaj yeem tsim cov methionine vim kev hloov pauv. Tsis tas li ntawd, nyob rau hauv cov noob caj noob ces, auxotrophic yog hais txog cov kab mob uas muaj kev hloov pauv uas ua rau tsis muaj peev xwm los tsim cov ntsiab lus tseem ceeb. Piv txwv li, cov poov xab mutant uas tsis muaj peev xwm los ua ke uracil yog uracil auxotroph.
Nyob rau hauv cov noob caj noob ces, auxotrophs yog cov cim caj ces nrov uas pab txhawb kev ua haujlwm ntawm biosynthetic lossis biochemical txoj hauv kev hloov pauv thiab tsis ua haujlwm enzymes, thiab lwm yam. Tsis tas li ntawd, auxotrophy tseem ceeb hauv kev tshuaj ntsuam genetic ntawm cov kab mob.
Prototrophs yog dab tsi?
Prototrophs yog cov kab mob uas muaj peev xwm los ua ke tag nrho cov organic tebchaw uas xav tau rau kev loj hlob. Yog li ntawd, lawv tus kheej txaus. Qhov tseeb, lawv zoo ib yam li hom tsiaj qus uas tsis muaj kev hloov pauv. Li no, lawv tsis yog mutants thiab muaj cov khoom noj zoo sib xws ntawm cov tsiaj qus. Cov microorganisms no synthes lawv cov as-ham los ntawm cov khoom inorganic. Yog li ntawd, lawv tsis xav tau cov organic as-ham los ntawm sab nraud. Lawv loj hlob zoo hauv cov xov xwm me me lossis cov xov xwm uas tsis muaj tshuaj ntxiv. Qhov tseem ceeb tshaj plaws, lawv tuaj yeem loj hlob hauv qhov nruab nrab uas tsuas muaj cov carbohydrates yooj yim xws li qab zib los ua lub zog, CO 2carbon qhov chaw thiab dej. Lawv tsim txhua yam lawv xav tau los ntawm cov ntsev inorganic.
Dab tsi yog qhov zoo sib xws ntawm Auxotrophs thiab Prototrophs?
- Auxotrophy thiab prototrophy yog ob nqe lus sib txawv.
- Muaj cov kab mob auxotrophic nrog rau cov kab mob prototrophic.
- Ob hom yog cov cim tseem ceeb rau kev tshuaj ntsuam genetic.
- Tsis tas li, lawv yog lwm cov phenotypes uas feem ntau txiav txim siab los ntawm ib khub ntawm alleles.
- Ntxiv mus, ob qho tib si tuaj yeem kawm caj ces txhawm rau txhawm rau paub lawv qhov kev tiv thaiv thiab kev nkag siab zoo rau tus inhibitor.
Qhov txawv ntawm Auxotrophs thiab Prototrophs yog dab tsi?
Auxotrophs thiab prototrophs yog lwm cov phenotypes. Auxotrophs yog cov kab mob uas tsis tuaj yeem tsim cov organic sib xyaw uas yuav tsum tau ua rau lawv txoj kev loj hlob thaum prototrophs yog cov kab mob uas tuaj yeem ua rau tag nrho cov organic tebchaw uas xav tau rau lawv txoj kev loj hlob los ntawm cov tshuaj inorganic. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm auxotrophs thiab prototrophs. Ntxiv mus, auxotrophs yog mutant hom, thaum prototrophs zoo ib yam li hom tsiaj qus. Yog li, qhov no kuj yog qhov sib txawv ntawm auxotrophs thiab prototrophs.
Cov hauv qab no qhia txog qhov sib txawv ntawm auxotrophs thiab prototrophs.
Summary – Auxotrophs vs Prototrophs
Auxotrophy yog qhov tsis muaj peev xwm ntawm cov kab mob los ua ke ib qho kev sib txuas ntawm cov organic uas xav tau rau nws txoj kev loj hlob thaum prototrophy yog lub peev xwm ntawm cov kab mob los ua ke tag nrho cov tebchaw uas xav tau rau nws txoj kev loj hlob. Yog li ntawd, auxotrophs tsis tuaj yeem tsim cov organic compound uas xav tau rau lawv txoj kev loj hlob thaum prototroph tuaj yeem ua ke tag nrho cov ntsiab lus xav tau. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm auxotrophs thiab prototrophs. Auxotrophs tau poob lawv lub peev xwm vim muaj kev hloov pauv. Yog li ntawd, lawv yog hom mutant uas qhia txog kev xav tau ntawm cov khoom noj ntxiv. Lub caij no, prototrophs tsis muaj kev hloov pauv, thiab lawv tus kheej txaus. Yog li ntawd, lawv yog hom tsiaj qus. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm auxotrophs thiab prototrophs.
