Masu bincike a cibiyar John Innes da abokan aikinsu na kwalejin kimiyyar kasar Sin sun gano wani canji na kwayoyin halitta da ke tantance bambancin girmar kwayoyin halitta da siffar sassan tsiro. Phys.org portal.
Mai sarrafa ci gaban auxin yana haɓaka haɓakar tantanin halitta ta hanyar furotin da ake kira transmembrane kinase 1 (TMK1). A saman tantanin halitta, wannan sunadaran yana daidaita kaddarorin bangon tantanin halitta waɗanda ke haɓaka haɓakar tantanin halitta. Amma TMK1 kuma yana nuna akasin tasirin ci gaba a cikin tsakiya na tantanin halitta, inda yake hana haɓakar tantanin halitta ta hanyar rage maganganun maganganu na auxin-mediated.
Dokta Bengo Gu da abokan aiki sun nuna yadda TMK1 ke aiwatar da waɗannan ayyuka da ake ganin sun bambanta a sassa daban-daban na tantanin halitta. Rage furotin na TMK1 yana faruwa akan farfajiyar tantanin halitta, wani ɓangare na furotin da aka tsinke yana canjawa zuwa tsakiya. Ko da yake wannan tsari ya zama ruwan dare gama gari, gano sunadaran da ke tattare da tsaga ya kasance da wahala a baya.
Sunadaran da ke ciki membobi ne na dangin DA1 peptidase. Wadannan enzymes suna rushe sunadarai daban-daban da ke da hannu wajen haɓaka halayen haɓaka kuma suna haɓaka haɓakar gabobin shuka.
The DA1 iyali TMK1 cleavage nunin nuna yadda suke daidaita kwararar bayanai daga saman tantanin halitta zuwa tsakiya, siffata girman tantanin halitta da ci gaban gabobin. Ƙaddamar da waɗannan matakai yana ba da gudummawa mai mahimmanci ga fahimtar hanyoyin ci gaban shuka.
Wannan aikin ya tabbatar da cewa DA1 iyali peptidases yana rinjayar tasirin siginar hormonal, wanda ke nuna wata hanya ta yau da kullum don watsa siginar daga ƙwayar plasma zuwa tsakiya. Sakamakon binciken na iya ba da wata hanya don inganta haɓakar irin amfanin gona.