Mumhuka, kukuvara kweDNA kunogona kutungamira mukuumbwa kwemamota. Kunyange zvazvo zvirimwa zvinogara kwenguva yakareba pasina kenza, kukura kwavo kunogara kuchidziviswa nezvinhu zvakawanda zvakatipoteredza, zvakadai semwaranzi, salinity, heavy metals uye mafashamo, izvo zvinogona kutungamirira kuDNA kukuvadzwa uye kuderedza goho.
Miti inozvidzivirira sei pakukuvadzwa neDNA?
Chikwata chetsvakurudzo kubva kuQingdao Institute of Bioenergy and Bioprocessor Technology (QIBEBT) yeChinese Academy of Sciences (CAS) chinopa mhinduro kumubvunzo uyu. Vakazvizivisa protein yakaoma inonzi MAC, iyo yakakosha pamhinduro dzechirimwa kune DNA kukuvara, inoshuma Phys.org portal.
Basa ravo rakaburitswa mujenari Plant Physiology munaNovember 4.
Vatsvakurudzi vakawana kuti zvirimwa zvisina kushanda MAC protein complex yakaratidza kukura kwekukura uye yakakuvadzwa nyore nyore nemethyl methanesulfonate (MMS), kemikari inokonzeresa kuputika kweDNA.
Vakaona zvakare kuti kushivirira kweboron kweaya maMAC mutants kwakaderedzwa. Kuwanda kweboron muvhu kunokuvadza goho rezvirimwa uye kudya kuri mukudya.
Chiyero cheMAC5A protein (chikamu cheMAC complex) chaidzorwa ne26S proteasome (26SP), muchina wemolecular unodiwa pakugadzira mapuroteni kuburikidza nekudyidzana kwakananga.
Nekubatsirwa kwebiochemical uye Kuburikidza nekuongorora kwemajini, vaongorori vakaona maviri maprotein complexes achishanda pamwechete kuchengetedza zvidyarwa kubva mukukuvara kweDNA kunokonzerwa neese methyl methanesulfonate uye yakakwira boron.
Ichi chidzidzo chakafumura mamolecular maitiro ekuti zvinomera zvinopindura sei kukuvadzwa kweDNA uye zvakapa kiyi nyowani yekuvandudza kugadzirwa kwezvirimwa uye kunaka kwechikafu.