I nā holoholona, hiki i ka pōʻino DNA ke alakaʻi i ka hoʻokumu ʻana o nā maʻi koko. ʻOiai ke ola nei nā mea kanu no ka manawa lōʻihi me ka ʻole o ka maʻi kanesa, ke keʻakeʻa mau ʻia ko lākou ulu ʻana e nā kumu kaiapuni he nui, e like me ka radiation, salinity, nā metala kaumaha a me ke kahe wai, hiki ke alakaʻi i ka pōʻino DNA a hōʻemi i nā hua.
Pehea e pale ai nā mea kanu iā lākou iho mai ka pōʻino DNA?
Hāʻawi kahi hui noiʻi mai ka Qingdao Institute of Bioenergy and Bioprocessor Technology (QIBEBT) o ka Chinese Academy of Science (CAS) i kahi pane i kēia nīnau. Ua ʻike lākou he paʻakikī protein i kapa ʻia ʻo MAC, he mea nui ia no ka pane ʻana o nā mea kanu i ka pōʻino DNA, hōʻike ʻO ka puka komo ʻo Phys.org.
Ua paʻi ʻia kā lākou hana ma ka puke pai Plant Physiology ma Nowemapa 4.
Ua ʻike ka poʻe noiʻi ʻo nā mea kanu me ka ʻole o ka hana ʻana o ka MAC protein complex i hōʻike i nā hemahema o ka ulu ʻana a ua maʻalahi hoʻi i hōʻino ʻia e ka methyl methanesulfonate (MMS), kahi kemika e hoʻopau ai i ka DNA.
Ua ʻike pū lākou ua hoʻemi ʻia ka hoʻomanawanui boron kiʻekiʻe o kēia mau mutants MAC. ʻO ke kiʻekiʻe o ka boron i loko o ka lepo e hōʻino i nā hua a me nā meaʻai i ka meaʻai.
ʻO ke kiʻekiʻe o ka protein MAC5A (kahi hapa o ka MAC complex) i hoʻomaluʻia e ka 26S proteasome (26SP), he mīkini molekala i koiʻia no ka hoʻoponopono protein ma o ka pilina pololei.
Me ke kōkua o biochemical a Ma o ka loiloi genetic, ua ʻike ka poʻe noiʻi i ʻelua mau pūmua protein e hana pū ana e pale i nā mea kanu mai ka pōʻino DNA i hana ʻia e ka methyl methanesulfonate a me ka boron kiʻekiʻe.
Ua wehe kēia haʻawina i nā ʻano molekala o ka pane ʻana o nā mea kanu i ka pōʻino DNA a hāʻawi i kahi kī hou e hoʻomaikaʻi ai hua ʻai a me ka maikaʻi o ka meaʻai.