Kuze kube manje, bekukuncane okwaziwayo mayelana nendlela izitshalo ezizivikela ngayo ezinambuzaneni ezidla izitshalo nendlela umjaho wezikhali phakathi kwezinambuzane nezitshalo owavela ngayo. Abacwaningi abavela e-Wageningen University & Research bathole ukuqonda okwengeziwe kulokhu: i-leaf necrosis eqinile - indlela izitshalo ezibona futhi zibulale ngayo amaqanda ezimvemvane nezinye izinambuzane emaqabunga azo - zivele cishe ezitshalweni ze-cruciferous kanye nezihlobo zazo zasendle ezihlaselwe. iklabishi abamhlophe ababethuthukile ukungatheleleki emafutheni anobuthi ezitshalo. Incwadi ekhuluma ngale ndaba yavela kumagazini i-New Phytologist.
I-butterfly emhlophe yeklabishi iqanjwe ngokuthanda kwayo amahlumela aseBrussels, i-rapeseed kanye nezinye izitshalo ze-crucifer ezitshalwayo njengezitshalo zokusingatha. Kodwa-ke, uma iklabishi elimhlophe (Pieridae) libekela amaqanda alo ezitshalweni ze-wild crucifer ezifana ne-black mustard (Brassica nigra), lesi sitshalo singakwazi ukuqalisa ukusabela kwe-necrotic okwenza iqabunga elingaphansi kweqanda life ngendlela elawulwayo. Lokhu kubangela ukuba iqanda linciphe futhi liwe esitshalweni.
I-Leaf necrosis
Ukuze uqonde umsuka wokuziphendukela kwemvelo kanye nokusatshalaliswa kwalesi sici sokuzivikela kwezitshalo, ithimba labacwaningi eliholwa yi-Biosystematics Group lihlole izinhlobo zezitshalo ezingu-31 emndenini we-crucifer ukuze bathole impendulo ecacile yokugeza okwenziwe ngamaqanda ezinhlobo zovemvane eziyisishiyagalolunye.
“Lokhu kuhlola kwabonisa ukuthi i-necrosis eqinile yeqabunga yavela cishe kuphela ohlwini lwezitshalo zeklabishi kanye nezihlobo zazo zasendle ezihlaselwa izimvemvane ezimhlophe zeklabishi,” kusho umholi womcwaningi uNina Fatouros. “Ngaphezu kwalokho, i-leaf necrosis yabangelwa kuphela lezo zinhlobo zovemvane emndenini wakwa-Pieridae ezingochwepheshe be-crucifers futhi ezikwazi ukuzondla ngazo naphezu kwamafutha esinaphi anobuthi e-crucifers.”
Lokhu okutholakele kusikisela ukuthi isici sokubulala amaqanda siye savela emndenini we-crucifer njengendlela yokuphikisa ikhono lezibungu ukuqeda ubuthi bamafutha e-mustard. Njengoba ziyingxenye yomjaho wezikhali oqhubekayo, ezinye izimvemvane cishe zajwayela ukubulala amaqanda ngokuhlanganisa amaqanda ngamaqembu (ngaleyo ndlela angathinteki kangako yi-necrosis), ngokushintshela kwezinye izitshalo ezisingathayo, noma ngokubeka amaqanda ezimbalini esikhundleni samaqabunga.
Ithimba njengamanje liphenya isisekelo sofuzo sesici sesitshalo esibulala amaqanda kuphrojekthi enkulu yocwaningo exhaswe yi-Dutch Research Council (NWO) ukuze ekugcineni kuthuthukiswe izitshalo ezimelana nezinambuzane.
Ukuze uthole ukwaziswa okwengeziwe:
I-Wageningen University & Ucwaningo
www.wur.nl