Njengesigcawu sefilimu ethusayo, izibungu ze-tomato fruitworm ziyathulisa ukukhala kwezitshalo zazo ezidlayo zokucela usizo njengoba zishwabadela amaqabunga azo. Yilokho okutholwe yithimba labacwaningi bezinhlaka eziningi, elathi imiphumela ingase iveze ulwazi ngamakhono ezitshalo zezitshalo—njengotamatisi nobhontshisi wesoya—ukumelana nezingcindezi ezengeziwe ezifana nokushintsha kwesimo sezulu.
"Sithole isu elisha lapho isinambuzane sisebenzisa amathe ukuvimbela ukukhululwa kwezitshalo zokuzivikela emoyeni ngokuxhaphaza ngokuqondile i-plant stomata," kusho uGary Felton, uprofesa kanye nenhloko yomnyango we-Entomology ePenn State, ephawula ukuthi i-stomata yizimbotshana ezincane. emaqabunga ezitshalo alawula ukushintshaniswa kwegesi, okuhlanganisa ukukhishwa kwezitshalo ezivikelayo kanye ne-carbon dioxide, phakathi kwesitshalo nendawo ezungezile.
Ngokukhethekile, abacwaningi bafunde imiphumela ye-enzyme ethile—i-glucose oxidase (GOX)—eyenzeka ematheni ezibungu ze-tomato fruitworm (i-Helicoverpa zea) ku-stomata yezitshalo kanye nokuphuma kokuzivikela kwezitshalo, okubizwa ngokuthi i-herbivore-induced plant volatiles (HIPV).
“Ama-HIPV kucatshangwa ukuthi asize ukuvikela izitshalo ezilwaneni ezidla uhlaza ngokuheha izitha zemvelo zalezo zilwane ezidla uhlaza nangokuxwayisa izitshalo ezingomakhelwane ngokuba khona kwezilwane ezidla uhlaza eduze,” kusho u-Felton. "Ngenxa yalokho, ukuvalwa kwesisu kunamandla okushintsha ukusebenzisana kuwo wonke umphakathi wezitshalo."
Funda isihloko esiphelele ku-www.phys.org.
Lin, P.‐A., Chen, Y., Chaverra‐Rodriguez, D., Heu, CC, Zainuddin, NB, Sidhu, JS, Peiffer, M., Tan, C.‐W., Helms, A., UKim, D., Ali, J., Rasgon, JL, Lynch, J., Anderson, CT and Felton, GW (2021), Ithulisa i-alamu: i-enzyme enamathe yezinambuzane ivala i-stomata yesitshalo futhi ivimbele ukukhululwa okuguquguqukayo. I-Phytol entsha. https://doi.org/10.1111/nph.17214