ʻO ka Virus Potato Y (PVY) ka pilikia koʻikoʻi e kū nei i ka ʻoihana ʻuala maʻAmelika Hui Pū ʻIa aʻo ia ke kumu nui no ka hoʻopau ʻana i nā lawe ʻuala hua. Hoʻopili ka virus i nā uala ma nā ʻano ʻelua: hoʻemi ia i ka hua o nā ʻūala potato e 70-80%, a me nā hopena maikaʻi ʻole i ka maikaʻi o nā tubers i koe ma muli o nā hopena necrotic
Hoʻopuni ʻo PVY i kahi pūnaewele paʻakikī o nā kānana me kahi o nā ʻōuli. I nā makahiki he 10 i hala iho nei, ua nui nā hoʻololi i ka laha ʻana o nā ʻano ʻokoʻa. ʻO PVY O, ke kaha non-recombinant i lanakila ma luna o ʻAmelike Hui Pū ʻIa a hiki i ka 2012, ua nalowale wale nō, ʻoiai ua pālahalaha ʻia nā ʻano recombinant ʻelua (e pili ana i ka hōʻino tuber). ʻO kēia mau kānana, ʻo PVY N-Wi a me PVY NTN, i kēia manawa no 90% o nā kaʻawale o ka PVY i loaʻa i kaʻuala.
I loko o kahi pūnaewele i paʻi ʻia ma ʻAukake 26, "Changing the Composition of the Potato Virus Y (PVY) Strain in US Potatoes," Alexander Karasev, Kumu ma ke Keʻena ʻo Plant Virology ma ke Kulanui o Idaho e kūkākūkā ana i kēia loli i ka laha ʻana o ke kanana, nā hopena i lawe ʻia mai nā hoʻokolohua i mālama ʻia i nā wā ulu i 2015 a 2016 makahiki. Hōʻike kāna noiʻi ʻoiai ʻekolu o ka ʻehā mau ʻano ʻuala e kūʻē iā PVY O, ʻaʻole i hiki i kekahi o lākou ke pale aku iā PVY N-Wi.
ʻO kēia mau hoʻololi i ka hoʻohui ʻana o nā ʻano PVY i nā māla ʻuala he mau mea nui ia no ka hōʻoia ʻana i kaʻuala, nā papahana hānau uala a me nā keʻena hoʻokolohua diagnostic.
Pono e nānā hou aʻe i nā hoʻokolohua keʻena hoʻokolohua, no ka mea ʻoi aku ka paʻakikī o nā ʻōuli ʻike ke ʻike ʻia, wahi a Karasev. Hoʻohui ʻia, hiki i nā pahu diagnostical kālepa ke ʻike i kēia mau ʻano hou.
Heluhelu kikoʻī: https://www.agroxxi.ru/
(Kumu: phys.org).