Nakuba izifo ezithathelwanayo zezitshalo ze-fungal zidala umonakalo ezitshalweni eziningi, nazo ziyakhetha lapho zikhetha abasingathi bazo. Isikhunta ngasinye ngokuvamile sibonisa uhla oluthile lokusingatha, kodwa indlela yalokhu kucaciswa ayikaqondwa kahle.
Abacwaningi baseNyuvesi yase-Kyoto manje sebehlonze futhi bahlukanisa amaprotheni esikhunta amane abizwa ngokuthi ama-effectors anesibopho sokucindezela ukuzivikela kwezitshalo eziphethwe yizifo. Iphepha elithi "Ukuthunyelwa okukhethiwe kwezithako ze-virulence kuhlobana nokucaciswa komsingathi ku-pathogen yesitshalo sesikhunta" livele ngoMashi 20, 2023 Isazi sezifo esisha.
I-Phytopathogens isitshalo isikhunta se-pathogenic ezikhiqiza lezi zidakamizwa. Ngenxa yalokho, ukhunta oluyingozi ngokuvamile lubonisa ukucaciswa okuhlukile kosokhaya lapho luthelela izitshalo, okubangela ngaphezu kuka-70% wezitshalo. izifo zezitshalo.
Ngokusho kwabacwaningi, abane amaprotheni asebenzayo ebizwa ngokuthi i-EPC1 kuya ku-EPC4 ku-Colletotrichum orbiculare—isikhunta se-phytopathogenic—yenza imininingwane ethile kukhukhamba lokusingatha.
“Izithako ezine zinokulandelana okuhluke kakhulu kwe-amino acid, okuphakamisa ukuthi zisebenza ngokuzimela, kodwa sidinga ukuqhubeka nokuhlaziya umsebenzi womenzi ngamunye ukuze sithole isithombe esicacile,” kusho umlobi oholayo u-Yoshitaka Takano weSikole Seziqu SezoLimo sase-KyotoU.
Ithimba likaTakano lisetshenzisiwe ukuhlaziya ukusebenza-ukuphazamiseka kofuzo okuhlosiwe-ezakhini zofuzo ezifana ne-effector, ezivezwa kakhulu kuma-isolate ayisithupha e-pathogen egonyelwe.
"Sisanda kuvula imbobo ukuze siqonde ukuthi abathintekayo besikhunta se-phytopathogenic babumba kanjani ukucaciswa kokusingatha. Ulwazi lwethu olukhulayo lungase luholele kubuchwepheshe obusha bokuvikela izitshalo.”