Qhov sib txawv tseem ceeb ntawm kinetin thiab zeatin yog tias kinetin yog ib hom hluavtaws ntawm cytokinin hormone, thaum zeatin yog ib qho tshwm sim ntawm cytokinin hormone.
Cytokinins yog ib chav kawm ntawm cov tshuaj hormones cog uas txhawb nqa cell faib lossis cytokinesis hauv cov tua thiab cov hauv paus hniav. Cytokinins feem ntau koom nrog hauv kev loj hlob ntawm tes thiab kev sib txawv ntawm tes. Tsis tas li ntawd, cytokinins kuj cuam tshuam rau apical dominance, axillary bud loj hlob, thiab nplooj senescence. Muaj ob hom cytokinins: adenine hom cytokinins (kinetin, zeatin, 6-benzylaminopurine) thiab phenylurea hom cytokinins (diphenylurea thiab thidiazuron (TDZ). Kinetin thiab zeatin yog ob hom adenine-type cytokinins.
Kinetin yog dab tsi?
Kinetin yog ib hom hluavtaws ntawm cytokinin thiab cov tshuaj hormones cog. Nws txhawb kev faib cell. Nws yog Ameslikas cais los ntawm Carols Miller thiab Skoog raws li ib tug compound los ntawm autoclaved herring ntses phev DNA. Raws li qhov sib xyaw no muaj kev faib tawm ntawm tes txhawb kev ua haujlwm hauv cov nroj tsuag, nws tau muab lub npe kinetin. Txawm li cas los xij, qhov kev faib tawm ntawm tes-txhawb kev ua haujlwm no tau tshwm sim thaum auxin nyob hauv nruab nrab. Kinetin feem ntau yog siv rau hauv cov nroj tsuag kab lis kev cai thwmsim los txhawb kev tsim ntawm callus nrog auxin. Nws kuj tseem siv los tsim cov ntaub so ntswg los ntawm callus thaum muaj qis auxin concentration hauv nruab nrab.
Daim duab 01: Kinetin
Kinetin tau suav hais tias yog ib qho khoom tsim tawm los ntawm deoxyadenosine residues hauv herring DNA. Yog li ntawd, nws tau xav tias kinetin tsis muaj nyob hauv ib txwm muaj. Txawm li cas los xij, ntau qhov kev tshawb fawb tshawb fawb tau pom tias lawv muaj nyob hauv tib neeg thiab ntau yam nroj tsuag. Lub tshuab ntawm kev tsim cov kinetin los ntawm DNA yog los ntawm kev tsim cov furfural. Furfural yog oxidation khoom ntawm deoxyribose qab zib hauv DNA. Lub quenching ntawm furfural yog los ntawm adenine hauv paus hloov nws mus rau N6-furfuryladenine (kinetin). Tsis tas li ntawd, kinetin kuj tau siv dav hauv kev tsim cov nroj tsuag tshiab los ntawm cov ntaub so ntswg kab lis kev cai khaws cia hauv chav kuaj.
Zeatin yog dab tsi?
Zeatin yog ib qho tshwm sim ntawm cov tshuaj cytokinin los ntawm adenine. Nws feem ntau tshwm sim hauv daim ntawv cis thiab trans isomer. Nws tuaj yeem tshwm sim raws li kev sib txuas. Zeatin tau pom nyob rau hauv cov pob kws tsis paub qab hau los ntawm genus Zea. Zeatin yog siv los txhawb kev loj hlob ntawm lateral buds. Ntxiv mus, thaum zeatin yog txau rau ntawm meristems, nws txhawb nqa kev faib tawm ntawm tes los tsim cov nroj tsuag bushier. Zeatin yog ib txwm tshwm sim nyob rau hauv ntau cov nroj tsuag rho tawm thiab tseem muaj nyob rau hauv txiv maj phaub mis nyuj raws li ib tug active ingredient.6-(γ, γ-Dimethylallylamino) purine yog ib qho ua ntej ntawm zeatin.
Daim duab 02: Zeatin
Zeatin muaj ntau yam kev tiv thaiv kev laus ntawm tib neeg cov tawv nqaij fibroblasts. Tsis tas li ntawd, lwm daim ntawv thov ntawm zeatin suav nrog kev txhawb nqa kev pib callus thaum ua ke nrog auxin, txhawb nqa cov txiv hmab txiv ntoo, ua kom cov zaub daj daj, ua rau cov kab mob loj hlob thiab paj, txhawb cov noob germination, noob loj hlob, thiab txhawb kev tiv thaiv ntawm luam yeeb tawm tsam cov kab mob. Pseudomonas syringae.
Dab tsi zoo sib xws ntawm Kinetin thiab Zeatin?
- Kinetin thiab zeatin yog ob hom adenine hom cytokinins.
- Ob daim ntawv yog muab los ntawm DNA.
- Ob daim ntawv induce callus kev loj hlob nyob rau hauv lub xub ntiag ntawm auxin.
- Lawv muaj ntau daim ntawv thov tseem ceeb.
Qhov txawv ntawm Kinetin thiab Zeatin yog dab tsi?
Kinetin yog ib hom hluavtaws ntawm cytokinin hormone, thaum zeatin yog ib qho tshwm sim ntawm cytokinin hormone. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm kinetin thiab zeatin. Tsis tas li ntawd, lub precursor rau kinetin yog furfural whereas lub precursor rau zeatin yog 6-(γ, γ-Dimethylallylamino) purine.
Cov ntawv qhia hauv qab no nthuav tawm qhov sib txawv ntawm kinetin thiab zeatin hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Kinetin vs Zeatin
Cytokinins yog cov tshuaj cog lus tshwj xeeb lossis cov tshuaj hormones uas ua lub luag haujlwm tseem ceeb hauv kev tswj hwm ntawm cov nroj tsuag cell voj voog thiab ntau txoj kev loj hlob. Kinetin thiab zeatin yog ob hom adenine cytokinins. Kinetin yog ib hom hluavtaws ntawm cytokinin hormone, thaum zeatin yog ib qho tshwm sim ntawm cytokinin hormone. Yog li, qhov no qhia txog qhov sib txawv ntawm kinetin thiab zeatin.
