{"id":6651,"date":"2014-06-01T10:09:59","date_gmt":"2014-06-01T03:09:59","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1742"},"modified":"2014-06-01T10:09:59","modified_gmt":"2014-06-01T03:09:59","slug":"sau-xanh-bai-tiet-ra-chat-kich-hoat-su-the-hien-gen-tu-ve-cua-cay-ca-chua","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/sau-xanh-bai-tiet-ra-chat-kich-hoat-su-the-hien-gen-tu-ve-cua-cay-ca-chua\/","title":{"rendered":"S\u00e2u xanh b\u00e0i ti\u1ebft ra ch\u1ea5t k\u00edch ho\u1ea1t s\u1ef1 th\u1ec3 hi\u1ec7n gen t\u1ef1 v\u1ec7 c\u1ee7a c\u00e2y c\u00e0 chua"},"content":{"rendered":"
Th\u1ef1c v\u1eadt c\u00f3 ch\u1ee9c n\u0103ng t\u1ef1 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00f4n tr\u00f9ng \u0103n l\u00e1, th\u00e2n, r\u1ec5.
\n<\/span>\u0110\u0103ng ng\u00e0y 01-06-2014<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/div>\n
\n

\"\"S\u00e2u h\u1ea1i l\u00e0m t\u1ed5n th\u01b0\u01a1ng v\u00e0 l\u00e0m gi\u1ea3m s\u1ea3n ph\u1ea9m ch\u1ea5t quang h\u1ee3p. Ch\u1ee9c n\u0103ng t\u1ef1 b\u1ea3o v\u1ec7 \u1ea5y s\u1ebd gi\u00fap c\u00e2y t\u1ed5ng h\u1ee3p ch\u1ea5t t\u1ef1 v\u1ec7 h\u01a1n l\u00e0 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t d\u1ee5c. Do v\u1eady, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 c\u00e2y ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng c\u1ef1c k\u1ef3 nh\u1ea1y c\u1ea3m v\u1edbi c\u01a1 ch\u1ebf g\u00e2y t\u1ed5n th\u01b0\u01a1ng khi b\u1ecb s\u00e2u \u0103n l\u00e1 (herbivores). Ch\u1ea5t d\u1ecbch ti\u1ebft ra khi s\u00e2u \u0103n (oral secretions) \u0111\u1ed1i v\u1edbi lo\u00e0i s\u00e2u caterpillars (Malacosoma<\/em> spp<\/strong>) k\u00edch th\u00edch c\u00e2y t\u1ea1o ra c\u00e1c ch\u1ea5t elicitors<\/strong> trong ph\u1ea3n \u1ee9ng l\u1ea1i stress sinh h\u1ecdc, gi\u1ed1ng nh\u01b0 h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 d\u1ec5 bay h\u01a1i VOCs<\/strong> (volatile organic compounds). Tuy nhi\u00ean, r\u1ea5t \u00edt c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u cho th\u1ea5y nh\u1eefng elicitors nh\u01b0 v\u1eady c\u00f3 trong tuy\u1ebfn n\u01b0\u1edbc b\u1ecdt ho\u1eb7c b\u1ea5t c\u1ee9 c\u01a1 quan n\u00e0o kh\u00e1c gi\u00fap s\u00e2u \u0103n, v\u00ed d\u1ee5 nh\u01b0 VEG<\/strong> (ventral eversible gland). Trong nghi\u00ean c\u1ee9u n\u00e0y, ch\u1ea5t b\u00e0i ti\u1ebft VEG c\u1ee7a s\u00e2u xanh \u201cbeet armyworm\u201d t\u00ean khoa h\u1ecdc l\u00e0 Spodoptora exigua<\/em> caterpillars \u0111\u01b0\u1ee3c gi\u00e1m \u0111\u1ecbnh v\u1ec1 xu\u1ea5t hi\u1ec7n c\u00e1c elicitors<\/strong> m\u00e0 nh\u1eefng ph\u00e2n t\u1eed \u1ea5y c\u00f3 th\u1ec3 k\u00edch th\u00edch h\u1ec7 th\u1ed1ng t\u1ef1 v\u1ec7 c\u1ee7a c\u00e2y. Ho\u1ea1t t\u00ednh c\u1ee7a enzyme c\u00f3 li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u1ef1 v\u1ec7, c\u00e1c m\u1ee9c \u0111\u1ed9 th\u1ec3 hi\u1ec7n ph\u00e2n t\u1eed transcript li\u00ean quan \u0111\u1ebfn gen c\u00f3 ch\u1ee9c n\u0103ng t\u1ef1 v\u1ec7 v\u00e0 h\u1ee3p ch\u1ea5t VOC th\u1ea3i ra trong c\u00e0 chua b\u1ecb s\u00e2u S. exigua<\/em> caterpillars g\u00e2y h\u1ea1i. Ng\u01b0\u1eddi ta so s\u00e1nh tr\u01b0\u1eddng h\u1ee3p n\u00e0y v\u1edbi tr\u01b0\u1eddng h\u1ee3p c\u00e0 chua b\u1ecb s\u00e2u h\u1ea1i m\u00e0 kh\u00f4ng c\u00f3 VEG (VEGA). C\u00e2y c\u00e0 chua b\u1ecb h\u1ea1i b\u1edfi VEGI caterpillars th\u1ec3 hi\u1ec7n m\u1ed9t h\u00e0m l\u01b0\u1ee3ng cao h\u01a1n r\u1ea5t nhi\u1ec1u l\u1ea7n c\u00e1c enzyme c\u00f3 li\u00ean quan \u0111\u1ebfn y\u00eau c\u1ea7u t\u1ef1 v\u1ec7 s\u00e2u VEGA caterpillars. S\u1ef1 \u0111i\u1ec1u h\u00f2a th\u1ec3 hi\u1ec7n gen theo h\u01b0\u1edbng up-regulation<\/strong> trong c\u00e1c gen m\u00e3 h\u00f3a jasmonic acid<\/strong> c\u0169ng nh\u01b0 c\u00e1c gen s\u1ea3n sinh ra terpene VOCs<\/strong> trong c\u00e2y b\u1ecb s\u00e2u h\u1ea1i VEGI caterpillars<\/strong>. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u1ea5t bay h\u01a1i VOCs t\u0103ng. H\u01a1n n\u1eefa, ch\u1ea5t ti\u1ebft ra khi s\u00e2u \u0103n \u0111\u1ed1i v\u1edbi lo\u00e0i VEGA caterpillars \u00edt hi\u1ec7u qu\u1ea3 h\u01a1n trong k\u00edch th\u00edch s\u1ef1 th\u1ec3 hi\u1ec7n gen t\u1ef1 v\u1ec7. C\u00e1c ch\u1ea5t b\u00e0i ti\u1ebft VEG\u00a0c\u1ee7a s\u00e2u xanh c\u00f3 ch\u1ee9a nh\u1eefng elicitors c\u1ee7a ph\u1ea3n \u1ee9ng t\u1ef1 v\u1ec7 trong c\u00e2y c\u00e0 chua.<\/p>\n

Xem \u00a0http:\/\/www.biomedcentral.com\/1471-2229\/14\/140<\/a>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Th\u1ef1c v\u1eadt c\u00f3 ch\u1ee9c n\u0103ng t\u1ef1 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00f4n tr\u00f9ng \u0103n l\u00e1, th\u00e2n, r\u1ec5. \u0110\u0103ng ng\u00e0y 01-06-2014 trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi S\u00e2u h\u1ea1i l\u00e0m t\u1ed5n th\u01b0\u01a1ng v\u00e0 l\u00e0m gi\u1ea3m s\u1ea3n ph\u1ea9m ch\u1ea5t quang h\u1ee3p. Ch\u1ee9c n\u0103ng t\u1ef1 b\u1ea3o v\u1ec7 \u1ea5y s\u1ebd gi\u00fap c\u00e2y t\u1ed5ng h\u1ee3p ch\u1ea5t t\u1ef1 v\u1ec7 h\u01a1n l\u00e0 t\u0103ng […]\n","protected":false},"author":1,"featured_media":6359,"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\/6651"}],"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=6651"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6651\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6359"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}