@jorgeluisalonso
#potatotubers #softrotdisease #geneticallyengineeredbacteria #diagnostictool #volatileorganiccompounds (VOCs) #cropyields #post-harveststoragepractices
Izilimo eziyizigaxa zamazambane zingenwa izifo ezihlukahlukene, okuhlanganisa ukubola okuthambile kwe-tuber, okungadala umonakalo ongalungiseki ngaphambi kokuba kuvele izimpawu ezibonakalayo. Ubuchwepheshe bamanje bokuhlonza abanele ekuhlonzeni izifo ezifihliwe kusenesikhathi, okwenza ukwakhiwa kwethuluzi lokuxilonga elibucayi kubaluleke kakhulu. Abacwaningi abavela e-Volcani Institute, i-Hebrew University of Jerusalem, kanye ne-Chinese Academy of Agricultural Sciences baye bahlakulela izinhlobo zamagciwane eziklanywe ngofuzo ezikwazi ukubona ukuguquguquka okuthile okubonisa ukuba khona kwezigaxa zamazambane ezingenwe isifo sokubola okuthambile.
Lisebenzisa i-1-Octanol, 2-phenylethyl alcohol, ne-1-octen-3-ol, ithimba likhombe abagqugquzeli abasabelayo ku-E. coli. Babe sebesungula izinhlobo ezintsha eziyisishiyagalolunye ze-bioreporter futhi bazihlola ezindaweni ezahlukahlukene ukuze bathole ama-VOC. Zonke izinhlobo, ngaphandle kwe-oxyR, zingathola umehluko phakathi kwezambane elinegciwane naleli elingatheleleki nezilimo eziyizigaxa. Phakathi kwezinhlobo, i-dnaK kwakuyi-bioreporter ethandwayo yokuthola ukutheleleka kwe-Pectobacterium kuwo wonke ama-tubers amazambane. Iphendule kukho konke ukuqubuka okuhloliwe futhi yabonisa umehluko omkhulu wokuphendula lapho kukhona ukutheleleka.
Ngokuqapha iphrofayili eguquguqukayo yezitshalo ezigciniwe, ukutholwa kwamagciwane kwamasignesha athile kungasiza ukutholwa kusenesikhathi kwamagciwane ngaphambi kokuba kubonakale izimpawu zesifo. Lokhu kuphumelela kunikeza isixazululo esisebenza kahle futhi esingabizi kakhulu kubalimi kanye nezazi zezolimo namahlathi ukuze kuvinjelwe ukusabalala kwezifo nokugcina izitshalo ezisezingeni eliphezulu.
Ukuthuthukiswa kwezinhlobo zebhaktheriya ezenziwe ngofuzo kuyinqubekelaphambili ebalulekile ekutholeni isigaxa samazambane. Leli thuluzi elisha lokuxilonga lingasiza abalimi kanye nezazi zezolimo namahlathi ukuba babone ukuba khona kwesifo sokubola okuthambile kusenesikhathi, kube lula ukuvimbela nokwelashwa ngesikhathi. Lobu buchwepheshe bunamandla okuguqula izindlela zokugcina emva kokuvuna nokwenza ngcono isivuno sezitshalo.