Njengoba kubikiwe Izindaba ze-RIA ", ososayensi baseTyumen State University (iTyumen State University), njengengxenye yethimba labacwaningi, bafunde ukuthi izicucu zepeptide zezitshalo ezelaphayo zithinta kanjani izidalwa eziyizilokazane ezithinta amazambane. Ukukhishwa kwe-Horsetail kubhekwa njengokuthembisayo ekulweni nama-parasites. Imiphumela yomsebenzi ishicilelwe ephephabhukwini elithi "Izitshalo".
Njengababhali bencwadi yokushicilela, izifo zezitshalo ezibangelwa izidalwa ze-mycelial (oomycetes) ziyinkinga enkulu kwezolimo emhlabeni jikelele. Esinye salezi zifo - okulimaza sekwedlule isikhathi - sithinta amazambane notamatisi. I-agent ebangela lesi sifo, i-oomycete phytophthora (i-Phytophthora infestans), ibangela amaqabunga necrosis, ukubola kwezilimo eziyizigaxa kanye nokufa kwezitshalo emazambane.
“Indlela ejwayelekile yokulwa nokulimala sekwephuzile ukwelapha amazambane ngemithi yokubulala izinambuzane. Kodwa-ke, ama-microorganisms e-pathogenic aya ngokuya emelana namakhemikhali. Ngakho-ke, ososayensi bafuna ezinye izindlela zokuvikela izitshalo, "- kusho omunye wabalobi besifundo, oyinhloko yelabhoratri yesayensi" yentsha "yokuphikiswa kwama-antimicrobial, owenzelwe isayensi yezinto eziphilayo u-Alexei Vasilchenko.
Ngokusho kososayensi, ukukhishwa kwemvelo okutholwe ezitshalweni ezisetshenziswe kwezokwelapha kuyisengezo esithembisayo kumakhemikhali okubulala izinambuzane. Ukusetshenziswa kwabo kuzonciphisa inani lezinsalela zezibulala-zinambuzane ekudleni nasemvelweni. Ngaphezu kwalokho, izindleko zokuvikelwa kwezitshalo ezihlanganisiwe zingancishiswa.
Ithimba labaphenyi abavela e-Institute of Bioorganic Chemistry eqanjwe ngoM. IShemyakin neYu.A. Ovchinnikov Russian Academy of Sciences, Research Institute for the Research of New Antibiotics eqanjwe ngoG. Gause, i-All-Russian Institute for Plant Protection, i-Institute of Ecological and Agricultural Biology (X-BIO) yaseTyumen State University kanye neRussia State Agrarian University (Moscow Agricultural Academy eqanjwe ngo-K.A. Timiryazev) ifunde ngomphumela wezitshalo eziyisikhombisa zokwelapha ku-phytophthora.
Okokuhlola kukhethwe i-celandine enkulu (i-Chelidonium majus); ukuphakama kwe-elecampane (Inula helertium); i-horsetail (i-Equisetum arvense); i-laurel (Laurus nobilis); itiye eliluhlaza (Camellia sinensis); Isibungu iSt. John's (Hypericum perforatum).
Izilimo eziyizigaxa zamazambane zazisikwa zibe ngamadiski zacutshungulwa ngezingcezwana. Ososayensi babe sebebona ukuhluma kwe-phytophthora in vitro besebenzisa i-microscopy ebonakalayo.
Imiphumela ikhombisa ikhono lokukhishwa kwe-peptide ukucindezela ukuqala kwezimpawu ze-phytophthora (amabala we-necrotic nezendlalelo ezinjenge-spore) kungakapheli amahora angu-144 ngemuva kokwelashwa kwe-disc amazambane, abacwaningi bathi.
Umphumela obonakaliswe kakhulu ukhonjiswe ngokukhishwa kwe-peptide kusuka ku-horsetail ejwayelekile. Ngakho-ke, ngokusho kwabalobi be-athikili, umuntu ozongenela ukhetho ukhethelwe indima yesithako esisebenzayo sokuthuthukisa i-biopesticide entsha.
Lolu cwaningo lwalusekelwa yiRussia Science Foundation (grant no. 19-76-30005) kanye neRussian Foundation for Basic Research (grant no. 18-34-20058). Ucwaningo lwenziwa ngesihloko esithi "Biosafety yabantu, izilwane kanye nezitshalo" ze-REC yase-West Siberian.