Waxaa la sheegaa in 10 ilaa 15% khasaaraha wax -soo -saarka beeraha ee dunida ay sababto cuduro. Oo maaddaama 70-80% cudurkan geedka uu sababay fangaska dhoobada ah, ka ilaalinta dalagyada fangaska dhoobada leh waa arrin muhiim u ah quudinta dadka adduunka. Si fangaska cudurada faafa uu u faafiyo dhirta, waa inay jebiyaan unugyada epidermal ee geedka oo ay ku soo duulaan gudaha. Si kale haddii loo dhigo, unugyada epidermal -ka dhirta ayaa u dhaqma sidii caqabaddii ugu horreysay ee lagu joojiyo weerarka fangaska cudurada faafa ee deegaanka. Haddaba waa maxay hawlaha difaaca ee unugyada epidermal leeyihiin?
Waxa xiiso leh, waxaa la ogaa in epidermis -ka dhirta ay ku jiraan chloroplasts yaryar oo aan sidaa ugu lug lahayn photosynthesis. Si kastaba ha ahaatee, ma cadda shaqada ay qabatay. Waa maxay sababta ay chloroplasts yaryar ugu jiraan epidermis -ka dhirta oo aan wax badan ku biirin photosynthesis?
Kaaliyaha Professor Hiroki Irieda ee Kulliyadda Beeraha, Jaamacadda Shinshu iyo Professor Yoshitaka Takano, Dugsiga Sare ee Beeraha, Jaamacadda Kyoto, waxay ogaadeen in chloroplasts -ka yaryar ee ku jira epidermis -ka dhirta ay xakameeyaan soo galitaanka cudurrada fangaska. Labada nin waxay ogaadeen in chloroplast -yada yaryar ay gudaha unugga si aad ah ugu dhaqaaqaan lakabka sare iyagoo ka jawaabaya weerarka fangaska waxayna ku lug leeyihiin jawaabta difaacaas.
Daraasaddan, labada qof ayaa markii ugu horreysay baaray nooca fangaska cudurada ee chloroplasts -ka epidermal ay ka jawaabaan. Natiijo ahaan, waxay ogaadeen in fangasyo badan oo fayras ah oo sababa guuritaanka dusha chloroplasts -ka epidermal. Waxa xiisaha lihi, waxaa sidoo kale la ogaaday in fangaskaan faymentous pathogenic-ka ah ay yihiin waxa loogu yeero 'aan la aqbalin' waxaana laga horjoogsaday inay soo galaan unugyada epidermal. Dhinaca kale, fangaska cudurada faafa ee loo habeeyey waxay u badan tahay inay ku soo duusho epidermis -ka dhirta taas oo chloroplasts -ka epidermal -ka ay joojiyeen u guuritaanka lakabka sare.
Marka xigta, waxay ku guuleysteen inay helaan borotiinno warshad ku lug leh guuritaanka dusha sare ee chloroplasts epidermal. Marka warshad aad u badan oo soo saarta borotiinkan la abuuray hordhaca wareejinta hidda -wadaha, chloroplasts -ka epidermal uma dhaqaaqin lakabka dushiisa oo ka soo horjeeda fangaska fangaska pathogenic. Geedkan transgenic -ka ah, difaaca jirka ee duulaanka epidermal -ka ee fungi filamentous pathogenic waa la dhimay. Waxaa sidoo kale la ogaaday in fangaska cudurada faafa ay aad ugu dhowdahay inay ku soo duulaan epidermis -ka dhirta taas oo chloroplasts -ka epidermal -ka ay joojiyeen u guuritaanka lakabka sare. Natiijooyinkani waxay tilmaamayaan in guuritaanka chloroplasts -ka epidermal ee lakabka dushiisa ay ku lug leedahay jawaabta difaaca ee xannibaya duulaanka fangaska cudurada faafa.
Ka aqri maqaalka oo dhameystiran barta www.phys.org.