{"id":6624,"date":"2014-02-13T01:30:44","date_gmt":"2014-02-12T18:30:44","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1844"},"modified":"2014-02-13T01:30:44","modified_gmt":"2014-02-12T18:30:44","slug":"nghien-cuu-ve-nhung-con-trung-khong-chu-dich-an-toan-boi-giong-cay-trong-bt","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/nghien-cuu-ve-nhung-con-trung-khong-chu-dich-an-toan-boi-giong-cay-trong-bt\/","title":{"rendered":"Nghi\u00ean c\u1ee9u v\u1ec1 nh\u1eefng c\u00f4n tr\u00f9ng kh\u00f4ng ch\u1ee7 \u0111\u00edch an to\u00e0n b\u1edfi gi\u1ed1ng c\u00e2y tr\u1ed3ng Bt"},"content":{"rendered":"
\n

B\u1ecd c\u00e1nh c\u1ee9ng c\u00f3 t\u00ean ti\u1ebfng Anh l\u00e0 Big eyed bugs (Geocoris punctipes) v\u00e0 b\u1ecd “insidious flower bugs” (Orius insidiosus) l\u00e0 nh\u1eefng thi\u00ean \u0111\u1ecbch hi\u1ec7n nay tr\u00ean nhi\u1ec1u gi\u1ed1ng c\u00e2y tr\u1ed3ng kh\u00e1c nhau, v\u00ed d\u1ee5 nh\u01b0 b\u00f4ng v\u1ea3i v\u00e0 b\u1eafp, tr\u00ean nh\u1eefng c\u00e2y tr\u1ed3ng n\u00e0y, ch\u00fang c\u00f3 nhi\u1ec7m v\u1ee5 \u0103n c\u00e1c s\u00e2u h\u1ea1i kh\u00e1c nhau, t\u1ea5n c\u00f4ng tr\u1ee9ng s\u00e2u v\u00e0 \u1ea5u tr\u00f9ng c\u1ee7a b\u01b0\u1edbm caterpillars.<\/span>\u0110\u0103ng ng\u00e0y 13-02-2014<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/p>\n<\/div>\n

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Ng\u01b0\u1eddi ta nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a 3 protein Cry tr\u00ean c\u00e1c gi\u1ed1ng c\u00e2y Bt tr\u00ean c\u01a1 s\u1edf l\u1ecbch s\u1eed sinh t\u1ed3n c\u1ee7a c\u00f4n tr\u00f9ng \u0103n m\u1ed3i nh\u01b0 v\u1eady.<\/p>\n

Nh\u00e0 khoa h\u1ecdc\u00a0Jun-Ce Tian<\/strong>\u00a0v\u00e0 ctv. thu\u1ed9c Cornell University \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u. Mu\u1ed1n gi\u1ea3m thi\u1ec3u \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1ed3i (c\u00f4n tr\u00f9ng c\u00f3 h\u1ea1i) trong s\u00e2u h\u1ea1i nhi\u1ec5m v\u1edbi Bt, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ph\u1ea3i s\u1eed d\u1ee5ng s\u00e2u \u0111o tr\u00ean c\u1ea3i b\u1eafp kh\u00e1ng \u0111\u01b0\u1ee3c Cry1Ac\/Cry2Ab (Trichoplusia ni<\/em><\/strong>) v\u00e0 s\u00e2u \u0111\u00e0n kh\u00e1ng \u0111\u01b0\u1ee3c Cry1 F- (Spodoptera frugiperda<\/em>) trong m\u1ed9t series nghi\u00ean c\u1ee9u c\u00f3 t\u00ednh ch\u1ea5t\u00a0tri-trophic<\/strong>.<\/p>\n

\"\"\u00a0\"\"<\/p>\n

Geocoris punctipes\u00a0<\/em>(tr\u00e1i) v\u00e0\u00a0Orius insidiosus<\/em>\u00a0(ph\u1ea3i)<\/p>\n

K\u1ebft qu\u1ea3 cho th\u1ea5y r\u1eb1ng: m\u1ee9c \u0111\u1ed9 s\u1ed1ng s\u00f3t,s\u1ef1 ph\u00e1t tri\u1ec3n, qu\u1ea7n th\u1ec3 th\u00e0nh tr\u00f9ng, s\u1ef1 th\u1ee5 tinh v\u00e0 cho ra s\u00e2u non gi\u1ed1ng nh\u01b0 khi cho c\u00f4n tr\u00f9ng \u0103n m\u1ed3i (predators) \u0103n s\u00e2u non \u0111\u00e3 \u0103n b\u00f4ng v\u1ea3i Cry1Ac\/Cry2Ab ho\u1eb7c gi\u1ed1ng b\u1eafp Cry1 F so v\u1edbi nghi\u1ec7m th\u1ee9c m\u1ed3i s\u1ed1ng tr\u00ean gi\u1ed1ng b\u00f4ng v\u00e0 b\u1eafp c\u00f3 t\u00ednh ch\u1ea5t isogenic ho\u1eb7c near-isogenic.<\/p>\n

Vi\u1ec7c ti\u1ebfp x\u00fac th\u01b0\u1eddng xuy\u00ean v\u1edbi nh\u00f3m kh\u1edfi \u0111\u1ea7u gi\u1ed1ng nhau \u1edf th\u1ebf h\u1ec7 th\u1ee9 hai c\u0169ng d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 l\u1ecbch s\u1eed chu k\u1ef3 s\u1ed1ng khi cho \u0103n m\u1ed3i \u0111\u00e3 s\u1ed1ng tr\u00ean c\u00e2y c\u00f3 Bt v\u00e0 kh\u00f4ng c\u00f3 Bt.<\/p>\n

Ph\u00e2n t\u00edch s\u00e2u h\u01a1n cho th\u1ea5y c\u00e1c con \u0103n m\u1ed3i trong m\u00f4i tr\u01b0\u1eddng c\u00f3\u00a0Bt Cry proteins<\/strong>\u00a0t\u1eeb m\u1ed3i ngon c\u1ee7a n\u00f3, v\u00e0 nh\u1eefng proteins \u1ea5y tr\u1edf n\u00ean b\u1ecb lo\u00e3ng ra theo xu h\u01b0\u1edbng t\u0103ng l\u00ean theo chu\u1ed7i th\u1ee9c \u0103n. K\u1ebft qu\u1ea3 cho th\u1ea5y kh\u00f4ng c\u00f3 \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u00e1ng k\u1ec3 c\u1ee7a 3 ptoteins th\u00f4ng d\u1ee5ng \u1ea5y v\u00e0 nh\u1eefng protein Cry kh\u00e1c \u0111\u1ed1i v\u1edbi hai lo\u00e0i \u0103n m\u1ed3i k\u1ec3 tr\u00ean.<\/p>\n

Xem\u00a0http:\/\/www.ingentaconnect.com\/content\/esa\/envent\/2014\/00000043\/00000001\/art00026<\/a>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

B\u1ecd c\u00e1nh c\u1ee9ng c\u00f3 t\u00ean ti\u1ebfng Anh l\u00e0 Big eyed bugs (Geocoris punctipes) v\u00e0 b\u1ecd “insidious flower bugs” (Orius insidiosus) l\u00e0 nh\u1eefng thi\u00ean \u0111\u1ecbch hi\u1ec7n nay tr\u00ean nhi\u1ec1u gi\u1ed1ng c\u00e2y tr\u1ed3ng kh\u00e1c nhau, v\u00ed d\u1ee5 nh\u01b0 b\u00f4ng v\u1ea3i v\u00e0 b\u1eafp, tr\u00ean nh\u1eefng c\u00e2y tr\u1ed3ng n\u00e0y, ch\u00fang c\u00f3 nhi\u1ec7m v\u1ee5 \u0103n c\u00e1c s\u00e2u h\u1ea1i kh\u00e1c nhau, […]\n","protected":false},"author":1,"featured_media":6386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6624"}],"collection":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/comments?post=6624"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6624\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6386"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}