A hiki i kēia manawa, ʻaʻole i ʻike nui ʻia e pili ana i ka pale ʻana o nā mea kanu iā lākou iho mai nā ʻōpala ʻai mea kanu a me ke ʻano o ka heihei lima ma waena o nā iniseti a me nā mea kanu. Ua loaʻa i ka poʻe noiʻi mai ke Kulanui o Wageningen a me ka ʻimi noiʻi i ʻike hou aʻe i kēia: ʻo ka necrosis lau ikaika - ke ʻano e ʻike ai nā mea kanu i nā hua o nā pepeke a me nā mea ʻē aʻe ma ko lākou mau lau - ua ʻike ʻia i loko o nā mea kanu cruciferous a me nā ʻohana hihiu i hoʻouka ʻia e kāpī keʻokeʻo i hoʻomohala i ka pale ʻana i ka ʻaila sinapi ʻona o nā mea kanu. Ua puka mai kahi puke e pili ana i kēia kumuhana ma ka puke pai New Phytologist.
ʻO ke kāpeti keʻokeʻo keʻokeʻo ka inoa i kona makemake no ka ulu ʻana o Brussels, ka rapeseed a me nā mea kanu ʻē aʻe i kanu ʻia e like me nā mea kanu hoʻokipa. Eia nō naʻe, i ka wā e waiho ai ke kāpena keʻokeʻo (Pieridae) i kāna mau hua ma luna o nā mea kanu crucifer hihiu e like me ka sinapi ʻeleʻele (Brassica nigra), hiki i ka mea kanu ke hoʻomaka i kahi hopena necrotic e make ai ka lau ma lalo o ka hua ma ke ʻano hoʻomalu. ʻO kēia ka mea e maloʻo ai ka hua a hāʻule mai ka mea kanu.
Leaf necrosis
No ka hoʻomaopopo ʻana i ka hoʻomaka ʻana a me ka hāʻawi ʻana o kēia ʻano pale mea kanu, ua nānā kahi hui noiʻi i alakaʻi ʻia e ka Biosystematics Group i nā ʻano mea kanu 31 i loko o ka ʻohana crucifer no ka pane necrotic i kahi holoi i hana ʻia mai nā hua o nā ʻano pepeke ʻeiwa.
"Ua hōʻike ʻia nā hoʻokolohua ua ulu ʻia ka necrosis lau ikaika i loko o ka moʻokūʻauhau o nā mea kanu kāpeti a me kā lākou mau ʻohana hihiu i hoʻouka ʻia e nā lele keʻokeʻo kāpeti," wahi a ke alakaʻi noiʻi ʻo Nina Fatouros. "Eia kekahi, ua hoʻomaka wale ʻia ka necrosis lau e kēlā mau ʻano pepeke i loko o ka ʻohana Pieridae he poʻe loea i nā crucifers a hiki iā lākou ke hānai iā lākou ʻoiai nā aila sinapi ʻona o ka crucifers."
Hōʻike kēia mau ʻike ua ulu ka ʻano pepehi hua manu i loko o ka ʻohana crucifer ma ke ʻano he counteradaptation i ka hiki o nā enuhe ke hoʻopau i ka ʻaila sinapi. Ma ke ʻano he ʻāpana o ka heihei lima e hoʻomau nei, ua hoʻololi ʻia kekahi mau pepeke i ka pepehi hua manu ma o ka hui ʻana i nā hua i loko o nā pūʻulu (no laila ʻaʻole i hoʻopilikia ʻia e ka necrosis), ma ka hoʻololi ʻana i nā mea kanu hoʻokipa ʻē aʻe, a i ʻole ma ka waiho ʻana i nā hua ma nā pua ma mua o nā lau.
Ke noiʻi nei ka hui i ke kumu genetic o ke ʻano mea kanu pepehi hua manu i loko o kahi papahana noiʻi nui i kālā ʻia e ka Dutch Research Council (NWO) e hoʻomohala i nā mea kanu i kū i nā iniseti pest.
No ka 'ike hou aku:
Ke Kulanui o Wageningen & Research
www.wur.nl