Nei zvirimwa zvinoramba zvipembenene zvakagadziridzwa zvichiramba zvipembenene?Izvi zvinotanga nekuwanikwa kwe "insect-resistant protein gene".Makore anodarika zana apfuura, mune chimwe chigayo mutaundi diki reThuringia, Germany, masayendisiti akawana utachiona hune basa rekuuraya zvipembenene ndokuritumidza kuti Bacillus thuringiensis zita reguta racho.Chikonzero nei Bacillus thuringiensis ichigona kuuraya tumbuyu imhaka yekuti ine yakakosha "Bt inodzivirira tumbuyu".Iyi Bt anti-insect protein yakanyatsojeka uye inogona kungosunga kune "zvakananga zvinogamuchira" mumatumbo ezvimwe zvipembenene (zvakadai se "lepidopteran" zvipembenene zvakadai semoths uye butterflies), zvichiita kuti zvipembenene zviparadze uye zvife.Masero emudumbu evanhu, zvipfuwo uye zvimwe zvipembenene (zvisiri- "Lepidopteran" zvipembenene) hazvina "specific receptors" zvinosunga puroteni iyi.Mushure mekupinda mukati megumbo, puroteni inorwisa-insect inogona kungogayiwa uye kuderedzwa, uye haishande.
Nokuti Bt anti-insect protein haina ngozi kune zvakatipoteredza, vanhu nemhuka, bio-insecticides nayo sechikamu chikuru chave chichishandiswa zvakachengeteka mukugadzirwa kwekurima kwemakore anopfuura 80.Nekuvandudza tekinoroji yetransgenic, varimi vezvekurima vakatamisa "Bt insect-resistant protein" gene muzvirimwa, zvichiita kuti mbesa dzirambe dzimire kune zvipembenene.Mapuroteni anodzivirira zvipembenene anoita pazvipembenene haashande pavanhu mushure mekupinda mudumbu remunhu.Kwatiri, puroteni inodzivirira zvipembenene inogayiwa uye inoderedzwa nemuviri wemunhu seprotein iri mumukaka, puroteni iri munguruve, uye puroteni muzvirimwa.Vamwe vanhu vanoti kungofanana nechokoreti, inoonekwa sechinonaka nevanhu, asi ichiiswa muchetura nembwa, zvirimwa zvinodzivirira zvipembenene zvakagadziridzwa zvinotora mukana wekusiyana kwemarudzi akadaro, chinovawo musimboti wesainzi.
Nguva yekutumira: Feb-22-2022