{"id":6637,"date":"2014-03-18T01:14:51","date_gmt":"2014-03-17T18:14:51","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1803"},"modified":"2014-03-18T01:14:51","modified_gmt":"2014-03-17T18:14:51","slug":"thien-dich-lam-cham-lai-tinh-khang-cua-sau-hai-doi-voi-giong-cay-trong-bien-doi-gen-bt","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/thien-dich-lam-cham-lai-tinh-khang-cua-sau-hai-doi-voi-giong-cay-trong-bien-doi-gen-bt\/","title":{"rendered":"Thi\u00ean \u0111\u1ecbch l\u00e0m ch\u1eadm l\u1ea1i t\u00ednh kh\u00e1ng c\u1ee7a s\u00e2u h\u1ea1i \u0111\u1ed1i v\u1edbi gi\u1ed1ng c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gen Bt"},"content":{"rendered":"<div class=\"TomTat clearfix\">\n<p><span id=\"ArticalDetail1_lblTeaser\" class=\"OverollContentDesc\">Cacs nh\u00e0 khoa h\u1ecdc thu\u1ed9c \u0110\u1ea1i h\u1ecdc Cornell ghi nh\u1eadn r\u1eb1ng trong c\u1ed9ng \u0111\u1ed3ng c\u00e1c lo\u00e0i thi\u00ean \u0111\u1ecbch, v\u00ed d\u1ee5 nh\u01b0 b\u1ecd r\u00f9a (ladybeetles), tr\u00ean nh\u1eefng gi\u1ed1ng c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gen Bt l\u00e0m ch\u1eadm l\u1ea1i kh\u1ea3 n\u0103ng c\u1ee7a s\u00e2u h\u1ea1i ti\u1ebfn h\u00f3a tr\u1ecfe n\u00ean kh\u00e1ng v\u1edbi c\u00e1c protein tinh th\u1ec3 di\u1ec7t s\u00e2u Bt.<\/span>\u0110\u0103ng ng\u00e0y <span id=\"ArticalDetail1_lblDate\">18-03-2014<\/span> trong chuy\u00ean m\u1ee5c <a id=\"ArticalDetail1_lnkChuyenmuc\" href=\"http:\/\/antoansinhhoc.vn\/Chuyen-muc\/Tin-the-gioi\/260\/1\">Tin th\u1ebf gi\u1edbi<\/a><\/p>\n<\/div>\n<div class=\"NoiDungBai\">\n<p><img decoding=\"async\" class=\"aligncenter\" title=\"Tu\u1ea7n tin khoa h\u1ecdc 371 (17 - 23\/03\/2014)\" src=\"http:\/\/iasvn.org\/Images_upload\/images\/New%20Picture%20(60)(4).png\" alt=\"\" \/>Theo Anthony Shelton, \u0111\u1ed3ng t\u00e1c gi\u1ea3 trong nghi\u00ean c\u1ee9u n\u00e0y, nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a h\u1ecd l\u00e0 b\u00e1o c\u00e1o l\u1ea7n \u0111\u1ea7u ti\u00ean tr\u01b0\u1eddng h\u1ee3p c\u1ee7a thi\u00ean \u0111\u1ecbch c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm l\u1ea1i s\u1ef1 ti\u1ebfn h\u00f3a t\u00edn kh\u00e1ng c\u1ee7a m\u1ed9t lo\u00e0i c\u00f4n tr\u00f9ng c\u00f3 h\u1ea1i cho c\u00e2y tr\u1ed3ng ch\u1ee9a gen Bt. Trong nghi\u00ean c\u1ee9u nh\u01b0 v\u1eady, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u1ea1o n\u00ean nh\u1eefng l\u1ed3ng nu\u00f4i s\u00e2u r\u1ea5t l\u1edbn \u1edf trong nh\u00e0 k\u00ednh; m\u1ed7i l\u1ed3ng c\u00f3 ch\u1ee9a c\u00e2y c\u1ea3i b\u00f4ng xanh (broccoli) v\u00e0 c\u00e1c c\u00e2y broccoli kh\u00f4ng c\u00f3 gen Bt, nh\u01b0 nh\u1eefng n\u01a1i tr\u00fa \u1ea9n c\u1ee7a s\u00e2u h\u1ea1i. H\u1ecd \u0111\u00e3 nghi\u00ean c\u1ee9u qu\u1ea7n th\u1ec3 c\u1ee7a s\u00e2u t\u01a1 (diamondback moth), s\u00e2u h\u1ea1i quan tr\u1ecdng tr\u00ean c\u00e2y b\u00f4ng c\u1ea3i xanh, v\u00e0 c\u00e1c lo\u00e0i c\u00f4n tr\u00f9ng l\u00e0 thi\u00ean \u0111\u1ecbch c\u1ee7a ch\u00fang, b\u1ecd r\u00f9a (ladybird beetles), trong su\u1ed1c s\u00e1u th\u1ebf h\u1ec7.<\/p>\n<p>C\u00e1c l\u1ed3ng nu\u00f4i l\u00e0 nh\u1eefng nghi\u1ec7m th\u1ee9c ph\u1ed1i tr\u1ed9n kh\u00e1c nhau c\u00f3 v\u00e0 kh\u00f4ng c\u00f3 thi\u00ean \u0111\u1ecbch, c\u00f3 v\u00e0 kh\u00f4ng c\u00f3 phun thu\u1ed1c s\u00e2u tr\u00ean c\u00e2y kh\u00f4ng c\u00f3 gen Bt l\u00e0m n\u01a1i tr\u00fa \u1ea9n. K\u1ebft qu\u1ea3 cho th\u1ea5y r\u1eb1ng qu\u1ea7n th\u1ec3 s\u00e2u t\u01a1 gi\u1ea3m trong nghi\u1ec7m th\u1ee9c c\u00f3 hi\u1ec7n di\u1ec7n c\u1ee7a b\u1ecd r\u00f9a v\u00e0 c\u00e2y kh\u00f4ng Bt, kh\u00f4ng phun thu\u1ed1c. Ng\u01b0\u1eddi ta quan s\u00e1t th\u1ea5y r\u1eb1ng t\u00ednh kh\u00e1ng \u0111\u1ed1i v\u1edbi c\u00e2y Bt ti\u1ebfn h\u00f3a th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u, m\u1ed9t c\u00e1ch c\u00f3 \u00fd ngh\u0129a trong nghi\u1ec7m th\u1ee9c n\u00e0y.<\/p>\n<p>Tr\u00e1i l\u1ea1i, c\u00e2y Bt c\u00f3 n\u01a1i tr\u00fa \u1ea9n \u0111\u01b0\u1ee3c phun thu\u1ed1c s\u00e2u ho\u00e0n to\u00e0n trong c\u00e1c nghi\u1ec7m th\u1ee9c kh\u00f4ng c\u00f3 b\u1ecd r\u00f9a sau 4-5 th\u1ebf h\u1ec7, c\u00f3 m\u1ed9t s\u1ef1 gia t\u0103ng nhanh \u0111\u00e1ng k\u1ec3 t\u00ednh kh\u00e1ng c\u1ee7a s\u00e2u t\u01a1. Trong nghi\u1ec7m th\u1ee9c c\u00f3 phun thu\u1ed1c c\u00e2y tr\u00fa \u1ea9n kh\u00f4ng c\u00f3 gen Bt v\u00e0 c\u00f3 thi\u00ean \u0111\u1ecbch, qu\u1ea7n th\u1ec3 s\u00e2u t\u01a1 gi\u1ea3m, nh\u01b0ng s\u00e2u ti\u1ebfn h\u00f3a nhanh t\u00ednh kh\u00e1ng l\u1ea1i gi\u1ed1ng c\u00e2y c\u1ea3i c\u00f3 gen Bt.<\/p>\n<p>Theo k\u1ebft qu\u1ea3 n\u00e0y, hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e2y tr\u1ed3ng Bt \u0111\u1ec3 ki\u1ec3m so\u00e1t qu\u1ea7n th\u1ec3 s\u00e2u h\u1ea1i, kh\u00f4ng th\u1ec3 thi\u1ebfu \u1ea3nh h\u01b0\u1edfng c\u1ee7a thi\u00ean \u0111\u1ecbch. Thi\u00ean \u0111\u1ecbch c\u00f3 vai tr\u00f2 l\u00e0m ch\u1eadm l\u1ea1i t\u00ednh kh\u00e1ng c\u1ee7a s\u00e2u h\u1ea1i \u0111\u1ed1i v\u1edbi c\u00e2y Bt trong qu\u1ea7n th\u1ec3 s\u00e2u.<\/p>\n<p>Xem b\u00e1o c\u00e1o tr\u00ean t\u1ea1p ch\u00ed\u00a0<em>PLoS One<\/em>.<\/p>\n<p>Ho\u1eb7c\u00a0<a title=\"Tu\u1ea7n tin khoa h\u1ecdc 371 (17 - 23\/03\/2014)\" href=\"http:\/\/isaaa.us5.list-manage.com\/track\/click?u=90d9912fca3d624d294e24b28&amp;id=77f85dfe46&amp;e=114707a8a7\" target=\"_blank\" rel=\"noopener\">http:\/\/mediarelations.cornell.edu\/2014\/03\/04\/predators-delay-pest-resistance-to-bt-crops\/<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" title=\"Tu\u1ea7n tin khoa h\u1ecdc 371 (17 - 23\/03\/2014)\" src=\"http:\/\/iasvn.org\/Images_upload\/images\/New%20Picture%20(61)(7).png\" alt=\"\" \/><\/p>\n<p style=\"text-align: right;\">Theo IAS<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cacs nh\u00e0 khoa h\u1ecdc thu\u1ed9c \u0110\u1ea1i h\u1ecdc Cornell ghi nh\u1eadn r\u1eb1ng trong c\u1ed9ng \u0111\u1ed3ng c\u00e1c lo\u00e0i thi\u00ean \u0111\u1ecbch, v\u00ed d\u1ee5 nh\u01b0 b\u1ecd r\u00f9a (ladybeetles), tr\u00ean nh\u1eefng gi\u1ed1ng c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gen Bt l\u00e0m ch\u1eadm l\u1ea1i kh\u1ea3 n\u0103ng c\u1ee7a s\u00e2u h\u1ea1i ti\u1ebfn h\u00f3a tr\u1ecfe n\u00ean kh\u00e1ng v\u1edbi c\u00e1c protein tinh th\u1ec3 di\u1ec7t s\u00e2u Bt.\u0110\u0103ng ng\u00e0y [&#8230;]\n","protected":false},"author":1,"featured_media":1820,"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\/6637"}],"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=6637"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6637\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/1820"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}