Vim li cas genetic hloov cov qoob loo tiv taus kab?Qhov no pib nrog kev tshawb pom ntawm "kab kab-resistant protein gene".Ntau tshaj 100 xyoo dhau los, nyob rau hauv ib lub zeb hauv lub nroog me me ntawm Thuringia, lub teb chaws Yelemees, cov kws tshawb fawb tau tshawb pom cov kab mob uas muaj cov kab mob tua kab mob thiab muab nws lub npe hu ua Bacillus thuringiensis tom qab lub nroog.Qhov laj thawj yog vim li cas Bacillus thuringiensis tuaj yeem tua kab yog vim nws muaj qhov tshwj xeeb "Bt kab-resistant protein".Qhov no Bt anti-insect protein yog heev tshwj xeeb thiab tsuas yog khi rau "specific receptors" nyob rau hauv lub plab ntawm tej kab tsuag (xws li "lepidopteran" kab xws li npauj thiab butterflies), ua rau cov kab tsuag perforate thiab tuag.Cov kab mob plab hnyuv ntawm tib neeg, tsiaj txhu thiab lwm yam kab (tsis yog "Lepidopteran" kab) tsis muaj "cov receptors tshwj xeeb" uas khi cov protein no.Tom qab nkag mus rau hauv lub plab zom mov, cov tshuaj tiv thaiv kab mob tsuas tuaj yeem zom thiab degraded, thiab yuav tsis ua haujlwm.
Vim hais tias Bt anti-insect protein tsis muaj teeb meem rau ib puag ncig, tib neeg thiab tsiaj txhu, bio-insecticides nrog nws raws li cov khoom tseem ceeb tau siv nyab xeeb hauv kev ua liaj ua teb rau ntau tshaj 80 xyoo.Nrog rau kev tsim cov thev naus laus zis thev naus laus zis, cov neeg ua liaj ua teb tau hloov pauv "Bt kab-resistant protein" noob rau hauv cov qoob loo, ua rau cov qoob loo kuj tiv taus kab.Kab-resistant proteins uas ua rau cov kab tsuag yuav tsis ua rau tib neeg tom qab nkag mus rau tib neeg lub plab zom mov.Rau peb, kab-resistant protein yog zom thiab degraded los ntawm tib neeg lub cev ib yam li cov protein nyob rau hauv cov mis nyuj, cov protein nyob rau hauv nqaij npuas, thiab cov protein nyob rau hauv cov nroj tsuag.Qee tus neeg hais tias ib yam li cov qhob noom xim kasfes, uas yog suav tias yog ib qho khoom noj khoom haus los ntawm tib neeg, tab sis raug tshuaj lom los ntawm cov dev, genetic hloov kho kab-resistant qoob loo coj kom zoo dua cov hom sib txawv, uas kuj yog lub ntsiab lus ntawm kev tshawb fawb.
Post lub sij hawm: Feb-22-2022