Bafuputsi ba Lefapha la Biochemistry Setsing sa Saense sa India (IISc) ba sibollotse mokhoa oo e leng khale o batloa oa ho laola kholo ea limela tsa khale tsa mobu joalo ka li-bryophyte (sehlopha se kenyelletsang boriba le li-liverworts) se ileng sa bolokoa limela tse thunyang hamorao.
Boithuto bona, bo phatlalalitsoeng koranteng ea Nature Chemical Biology, bo tsepamisitse maikutlo taolong e seng molaong ea liprotheine tsa DELLA, taolo e kholo ea kholo e hatellang karohano ea lisele ho li-embryophyte (limela tsa mobu).
Ho khahlisang ke hore li-bryophyte, limela tsa pele tse ileng tsa hlaha naheng lilemong tse ka bang limilione tse 500 tse fetileng, ha li na moamoheli oa GID1 leha li ne li hlahisa phytohormone GA. Sena se hlahisa potso ea hore na kholo le nts'etsopele ea limela tsena tsa pele tsa mobu li ne li laoloa joang.
Ho sebelisa liverwort Marchantia polymorpha e le mokhoa oa mohlala, bafuputsi ba fumane hore limela tsena tsa khale li sebelisa enzyme e khethehileng, MpVIH, e hlahisang lenģosa la cellular inositol pyrophosphate (InsP₈), e ba lumellang ho senya DELLA ntle le tlhokahalo ea gibberellic acid.
Bafuputsi ba fumane hore DELLA ke e 'ngoe ea liphofu tsa cellular tsa VIH kinase. Ho feta moo, ba ile ba hlokomela hore limela tse haelloang ke MpVIH li etsisa phenotypes ea M. polymorpha limela tse overexpress DELLA.
"Nakong ena, re ne re thabetse ho utloisisa hore na botsitso kapa ts'ebetso ea DELLA e eketsehile limela tse haelloang ke MpVIH," ho boletse Priyanshi Rana, mongoli oa pele le seithuti se fumaneng mangolo sehlopheng sa lipatlisiso sa Lahey. Tumellanong le maikutlo a bona, bafuputsi ba fumane hore ho thibela DELLA ho pholositse haholo kholo e nang le bokooa le nts'etsopele ea limela tsa MpVIH tse fetotsoeng. Liphetho tsena li fana ka maikutlo a hore VIH kinase e laola DELLA hampe, ka hona e khothaletsa kholo le nts'etsopele ea semela.
Patlisiso ka liprotheine tsa DELLA e qalile mehleng ea Phetohelo e Tala, ha bo-ramahlale ba sa tsebe ba sebelisa monyetla oa bona ho hlahisa mefuta e mengata e behang haholo. Le hoja lintlha tsa kamoo li neng li sebetsa kateng li ne li sa hlaka ka nako eo, theknoloji ea morao-rao e lumella bo-rasaense ho laola mesebetsi ea liprotheine tsena ka boenjiniere ba liphatsa tsa lefutso, ka katleho ba eketsa chai ea lijalo.
Ho ithuta limela tsa pele tsa mobu ho boetse ho fana ka leseli mabapi le ho iphetola ha tsona lilemong tse limilione tse 500 tse fetileng. Ka mohlala, le hoja limela tsa morao-rao tsa lipalesa li senya liprotheine tsa DELLA ka mochine o itšetlehileng ka gibberellic acid, libaka tse tlamang tsa InsP₈ lia bolokoa. Liphuputso tsena li fana ka leseli mabapi le phetoho ea litsela tsa matšoao a lisele ka nako.
Sengoliloeng sena se hatisitsoe hape ho tsoa mehloling e latelang. Tlhokomeliso: Mongolo o ka hlophisoa ho latela bolelele le litaba. Ho fumana lintlha tse ling, ka kopo ikopanye le mohloli. Leano la rona la phatlalatso le ka fumanoa mona.
Nako ea poso: Sep-15-2025