Colorado potato beetle ke e 'ngoe ea likokoanyana tse kotsi ka ho fetisisa tsa litapole. E tiile 'me ka potlako e khona ho mamella chefo e bolaeang likokoanyana. Bo-rasaense ba Russia ba ithutile libaktheria tse hlahisang chefo e itseng, motheong oa hore lihlahisoa tsa likokoana-hloko li bōptjoa ho sireletsa limela ho tse senyang lijalo. Ho ile ha fumaneha hore ho eketsoa ha li-spores (mefuta e robetseng) ea likokoana-hloko ho sebolaea likokoanyana ho senya boits'ireletso ba mala ba Colorado litapole beetle larvae mme ho etsa hore ba hlaselehe habonolo ke chefo. Mosebetsi ona o ne o tšehetsoa ke Russia Science Foundation (RSF) 'me o hatisitsoe koranteng ea Toxins.
Bacillus thuringiensis (BT) baktheria e hlahisa chefo e itseng ea Cry e amang likokoanyana feela. Ntho e qala ho sebetsa feela ka mor'a ho sebelisana le li-enzyme tsa mala a beetle, ho senya mosebetsi oa tsamaiso ea eona ea lijo le ho baka tlala.
Sesenyi se ka be se shoele khale, haeba e se ka mekhoa ea sona ea ho ikamahanya le lithethefatsi tse thehiloeng ho BT. Ho itšireletsa ha mala hoa ntlafala, 'me ka lebaka leo, libaktheria le chefo ea tsona li sitoa ho phethahatsa morero oa tsona. Bafuputsi ba Novosibirsk State Agrarian University (Novosibirsk) le Siberian Federal Scientific Center of Agrobiotechnology of the Russian Academy of Sciences (Krasnoobsk) ba fumane mokhoa oa ho feta mekhoa ena. Motsoako oa chefo ea protheine le spores (mofuta o robetseng oa baktheria e ka kenyang tšebetsong le ho ikatisa ka har'a likokoanyana) ea Bacillus thuringiensis e thusa ho bolaea kokoanyana ea Colorado litapole ka katleho.
Ha motsoako oa li-spores le chefo ea baktheria e kena 'meleng, tsamaiso ea timetso le ho fokotsa lintho tse sa tšoaneng tse chefo (detoxification) e hlahisoa ke likokoanyana. Ka nako e ts'oanang, tšireletso ea humoral e kenngoa ka maleng, e sireletsang 'mele ho likokoana-hloko. Leha ho le joalo, bafuputsi ba fumane tšobotsi e 'ngoe hape - ha chefo e kopantsoe le li-spores, li-larvae li bontša ho se leka-lekane ho matla ha redox' me ts'ebetso ea tšenyo ea lisele tsa mala ka lebaka la oxidation e bakoa. Ha li kopane, sena se lebisa ho tlōlo ea tšireletso ea antioxidant ea li-larvae le ho senyeha ha bophelo bo botle ba bona ka kakaretso.
"Ha chefo e kopantsoe le likokoana-hloko tsa Bacillus thuringiensis, likokoanyana li shoa kapele, 'me 30% e eketsehileng ea Colorado beetle e shoa. Kenyelletso ea lithethefatsi le mahlale a tsoetseng pele a tla lumella ho tlatsa 'maraka oa likokoanyana tse bolaeang likokoanyana ka lithethefatsi tsa lapeng, ho ntlafatsa boleng ba lihlahisoa tsa lijo, ho fokotsa boima ba chefo e bolaeang likokoanyana tikolohong le ho fokotsa tšusumetso e mpe bophelong ba sechaba, "ho boletse Ivan Dubovsky, morero. mookameli bakeng sa thuso e tsoang ho Serussia Science Foundation, Ngaka ea Biological Sciences, Hlooho ea Laboratori ea likokoana-hloko tšireletso ea limela le biotechnology ea Novosibirsk State Agrarian University.