He kī nui paha ka maʻi bacteria i ka hoʻopaʻa ʻana i ka honua laha
kumu:Phys.orgHe mea koʻikoʻi nā mea ʻeleʻele ʻeleʻele no ke ola o kēia wā akā ʻo ka hoʻomaʻemaʻe ʻana iā lākou ma hope o ka ʻeli ʻana he kumu kūʻai, hoʻopōʻino i ke kaiapuni a loaʻa ka hapa nui ma waho.Hōʻike ʻia kahi noiʻi hou i kahi hōʻoia o ka loina no ka ʻenekinia ʻana i kahi hua bacteria, Gluconobacter oxydans, e hana nui i ka hana mua i ka hālāwai ʻana i ka skyrocketing rare earth element koi ma ke ʻano e kūlike i ke kumukūʻai a me ka pono o ka unuhi thermochemical kuʻuna a me nā ʻano hoʻomaʻemaʻe a lawa ka maʻemaʻe. e hoʻokō i nā kūlana kaiapuni US."Ke hoʻāʻo nei mākou e hana i kahi ʻano pili i ka kaiapuni, haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa no ka lawe ʻana i nā mea ʻeleʻele ʻeleʻele mai loko mai o ka pōhaku," wahi a Buz Barstow, ka mea kākau kiʻekiʻe o ka pepa a me ke kaukaʻi kōkua o ka ʻenekinia biological a me ka ʻenekinia. Kulanui ʻo Cornell.ʻO nā mea-ʻo ia ka 15 i loko o ka papaʻaina manawa-pono no nā mea a pau mai nā kamepiula, nā kelepona paʻa, nā pale, nā microphones, nā makani makani, nā kaʻa uila a me nā mea hoʻokele i nā radar, nā sonars, nā kukui LED a me nā ʻaʻa rechargeable.ʻOiai ua hoʻomaʻemaʻe ʻo US i kāna mau mea ponoʻī o ka honua, ua pau ka hana ʻana ma mua o ʻelima mau makahiki i hala. I kēia manawa, hana ʻia ka hoʻomaʻemaʻe ʻana o kēia mau mea i nā ʻāina ʻē aʻe, ʻo Kina."ʻO ka hapa nui o ka hana ʻana a me ka ʻili ʻana o ka honua i loko o ka lima o nā lāhui ʻē," wahi a ka mea kākau kumu ʻo Esteban Gazel, ke kumu aʻoaʻo o ka honua a me ka ʻepekema lewa ma Cornell. "No laila no ka palekana o ko mākou ʻāina a me ke ʻano o ke ola, pono mākou e hoʻi i ke ala e hoʻomalu ai i kēlā kumuwaiwai."No ka hoʻokō ʻana i nā pono makahiki o ʻAmelika no nā mea ʻenehana honua, ma kahi o 71.5 miliona tonnes (~ 78.8 miliona tons) o ka ʻaila maka e koi ʻia e unuhi i 10,000 kilograms (~ 22,000 paona) o nā mea.Ke hilinaʻi nei nā ʻano hana o kēia manawa i ka hoʻoheheʻe ʻana i ka pōhaku me ka waika sulfuric wela, a ukali ʻia me ka hoʻohana ʻana i nā mea hoʻoheheʻe organik e hoʻokaʻawale i nā mea like ʻole mai kekahi i kekahi i loko o kahi hopena."Makemake mākou e noʻonoʻo i kahi ala e hana ai i kahi bug e ʻoi aku ka maikaʻi o kēlā hana," wahi a Barstow.ʻIke ʻia ʻo G. oxygenans no ka hana ʻana i ka waika i kapa ʻia he biolixiviant e hoʻoheheʻe ai i ka pōhaku; hoʻohana ka bacteria i ka ʻakika no ka huki ʻana i nā phosphates mai nā mea ʻano honua. Ua hoʻomaka ka poʻe noiʻi e hoʻopololei i nā genes G. oxygenans no laila e unuhi maikaʻi loa ia i nā mea.No ka hana ʻana pēlā, ua hoʻohana nā mea noiʻi i kahi ʻenehana a Barstow i kōkua i ka hoʻomohala ʻana, i kapa ʻia ʻo Knockout Sudoku, i ʻae iā lākou e hoʻopau i nā genes 2,733 i ka genome G. oxydans i kēlā me kēia. Ua hoʻonohonoho ka hui i nā mutants, kēlā me kēia me kahi gene kikoʻī i kīkē ʻia, no laila hiki iā lākou ke ʻike i ke ʻano o nā genes i ka lawe ʻana i nā mea mai ka pōhaku."Maikaʻi loa wau," wahi a Gazel. "He kaʻina hana mākou ma ʻaneʻi e ʻoi aku ka maikaʻi ma mua o nā mea i hana ʻia ma mua."ʻO Alexa Schmitz, kahi mea noiʻi postdoctoral ma ka lab o Barstow, ʻo ia ka mea kākau mua o ka noiʻi, "Gluconobacter oxydans Knockout Collection Finds Improved Rare Earth Element Extraction," i paʻi ʻia ma Nature Communications.
