Chikwata chekutsvagisa chinotungamirwa neRIKEN chawana chiwanikwa chinogona kushandiswa kuvandudza kunyudzwa kwechirimwa.Mutakuri ane hukama nekudzika kwemidzi yezvirimwa nekuda kwegiravhiti.Ichi chiitiko chinonzi mudzi geotropism1.googletag.cmd.push(basa(){googletag.display('div-gpt-ad-1449240174198-2′);});
Charles Darwin aive mumwe wemasayendisiti ekutanga kudzidza nezvesimba remidzi yezvirimwa.Kuburikidza nekuedza kuri nyore asi kwakanaka, Darwin akaratidza kuti midzi yemidzi yezvirimwa inogona kuona simba rinokwevera zvinhu pasi, uye inokwanisa kutumira masaini kumatishu ari pedyo, nokudaro achikotamisa midzi kusimba rinokwevera zvinhu pasi.Isu tave kuziva kuti chirimwa hormone auxin chinoita basa rakakosha mumhinduro iyi inokwevera.
Mahomoni ezvirimwa ane mabasa mazhinji emuviri uye anogona kubatsira zvirimwa kuramba kushanduka kwezvakatipoteredza.Kuti zvishande nemazvo, kugovera kwavo uye kuita kwavo mumaseru nematishu kunofanirwa kugadzirwa nemazvo.Izvi zvinowanzo sanganisira vatakuri vanoyananisa kutora kweserura kana kutumira kunze kwemahomoni kana anotangira.
Iye zvino, RIKEN biologist vakaratidza kuti iyo yakambotsanangurwa mutakuri NPF7.3 inogona kudzora mhinduro yeauxin uye midzi yegiravhiti mumuenzaniso chirimwa Arabidopsis.
Mitsunori Seo weRIKEN Sustainable Resources Science Center akati: "Takaona kuti mbesa dzakachinja mujeni encoding NPF7.3 dzinoratidza kukura kwemidzi zvisina kufanira.""Kunyatsoongorora kwakaratidza chimwe chikanganiso mumhinduro yegiravhiti, sezvakambotaurwa.Basa reNPF7.3 se nitrate uye potassium transporter haigoni kutsanangurwa.Izvi zvinoita kuti tifungidzire kuti puroteni iyi inogona kunge iine mamwe mabasa aimbove asina maitiro. "
Ongororo dzakazotevera dzakaratidza kuti NPF7.3 inoshanda semutakuri we indole-3-butyric acid (IBA), uye IBA inotorwa nemamwe midzi midzi kuburikidza neNPF7.3 inoshandurwa kuita indole-3-acetic acid (IAA), inova iyo chikuru chemukati Source auxin.Izvi zvinobatsira kumisikidza auxin gradient mumudzi wetishu, iyo inozotungamira mhinduro inokwevera.
IBA ndeyechipiri inofanotungamira yeIAA, uye basa reIBA-yakatorwa IAA mukufamba kwesimba raimbozivikanwa.Nekudaro, zvinoita sekunge zvimwe zvidyarwa (kusanganisira zvirimwa) zvinewo maitiro ekudzora akafanana, izvo zvinogona kutungamira kune zvekurima uye zvekurima.
Seo akati: "Tichakwanisa kugadzirisa midzi midzi nekudzora kutapurirana kweIBA."“Izvi zvichavandudza kutorwa kwemvura nechikafu nemidzi, zvichisimudzira kurimwa kwezvirimwa.”
Mapuroteni eNPF akatanga kuzivikanwa senge nitrate kana peptide vatakuri, asi zviri pachena kuti anochinjika kupfuura zvaimbofungwa.Seo akatsanangura kuti: “Ongororo dzichangobva kuitika, kusanganisira iyi, dzakaratidza kuti mhuri yevatakuri iyi inogona kuunza zvinhu zvakasiyana-siyana, kusanganisira mahomoni ezvirimwa uye mametabolites echipiri.“Mubvunzo mukuru unotevera ndewekuti, tinoda kuziva kuti protein yeNPF inozviona sei izvi.Multiple substrates. "
Unogona kuzorora uine chokwadi chekuti vapepeti vedu vanonyatso tarisisa mhinduro dzese dzinotumirwa uye vachatora danho rakakodzera.Maonero ako akakosha zvikuru kwatiri.
Yako email kero inongoshandiswa kuita kuti mugamuchiri azive atumira email.Kero yako kana kero yemugamuchiri haizoshandiswe kune chimwe chinangwa.Ruzivo rwauchaisa ruchaonekwa mune yako email, asi Phys.org haizovachengete mune chero chimiro.
Tora vhiki nevhiki uye/kana zvemazuva ese zvinotumirwa kubhokisi rako rekutumira.Iwe unogona kuzvibvisa chero nguva, uye isu hatife takagovera ruzivo rwako kune vechitatu mapato.
Iyi webhusaiti inoshandisa makuki kubatsira kufamba, kuongorora mashandisiro ako masevhisi edu uye kupa zvirimo kubva kune vechitatu mapato.Nekushandisa webhusaiti yedu, unosimbisa kuti waverenga nekunzwisisa mutemo wedu wekuvanzika uye mazwi ekushandisa.