{"id":1986,"date":"2013-08-06T02:41:40","date_gmt":"2013-08-05T19:41:40","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1986"},"modified":"2013-08-06T02:41:40","modified_gmt":"2013-08-05T19:41:40","slug":"cac-nha-sinh-hoc-phan-tu-thuc-vat-nghien-cuu-gen-giup-cay-phat-trien-trong-dat-thieu-nito","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/cac-nha-sinh-hoc-phan-tu-thuc-vat-nghien-cuu-gen-giup-cay-phat-trien-trong-dat-thieu-nito\/","title":{"rendered":"C\u00e1c nh\u00e0 sinh h\u1ecdc ph\u00e2n t\u1eed th\u1ef1c v\u1eadt nghi\u00ean c\u1ee9u gen gi\u00fap c\u00e2y ph\u00e1t tri\u1ec3n trong \u0111\u1ea5t thi\u1ebfu nit\u01a1"},"content":{"rendered":"

Trong m\u1ed9t nghi\u00ean c\u1ee9u nh\u1eb1m\u00a0x\u00e1c \u0111\u1ecbnh\u00a0c\u00e1c gen\u00a0gen quan tr\u1ecdng\u00a0trong s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 c\u00e2y d\u01b0\u01a1ng, ba nh\u00e0 khoa h\u1ecdc\u00a0t\u1ea1i \u0111\u1ea1i h\u1ecdc\u00a0c\u00f4ng ngh\u1ec7 Michigan \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t m\u00f4 h\u00ecnh m\u1edbi cho c\u00e1ch\u00a0th\u1ee9c m\u00e0\u00a0gen t\u01b0\u01a1ng t\u00e1c\u00a0v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng c\u1ee7a nhau.<\/p>\n

\u0110\u0103ng ng\u00e0y 06-08-2013 trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/p>\n

H\u1ecd c\u0169ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng c\u00e1c gen l\u00e0 nguy\u00ean nh\u00e2n gi\u00fap r\u1ec5 c\u00e2y d\u01b0\u01a1ng ph\u00e1t tri\u1ec3n t\u1ed1t trong \u0111\u1ea5t thi\u1ebfu nit\u01a1, khi\u1ebfn cho ch\u00fang tr\u1edf th\u00e0nh \u1ee9ng vi\u00ean l\u00fd t\u01b0\u1edfng cho vi\u1ec7c tr\u1ed3ng c\u00e2y nhi\u00ean li\u1ec7u sinh h\u1ecdc tr\u00ean c\u00e1c v\u00f9ng \u0111\u1ea5t kh\u00f3 tr\u1ed3ng tr\u1ecdt.<\/p>\n

Nghi\u00ean c\u1ee9u, th\u1ef1c hi\u1ec7n b\u1edfi Hairong\u00a0Wei, Yordan Yordanov v\u00e0 Victor Busov, \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed\u00a0New Phytologist<\/em>\u00a0v\u1edbi ti\u00eau \u0111\u1ec1 “S\u1ef1 thi\u1ebfu h\u1ee5t nit\u01a1 th\u00fac \u0111\u1ea9y t\u0103ng tr\u01b0\u1edfng r\u1ec5 c\u00e2y d\u01b0\u01a1ng th\u00f4ng qua vi\u1ec7c t\u00e1i l\u1eadp tr\u00ecnh to\u00e0n b\u1ed9 c\u00e1c b\u1ea3n phi\u00ean m\u00e3 v\u00e0 k\u00edch ho\u1ea1t h\u1ec7 th\u1ed1ng gen ph\u00e2n c\u1ea5p.”<\/p>\n

Khi\u00a0c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf \u0111\u1ea1i h\u1ecdc c\u00f4ng ngh\u1ec7 Michigan v\u00e0 khoa Khoa h\u1ecdc m\u00f4i tr\u01b0\u1eddng v\u00e0 T\u00e0i nguy\u00ean r\u1eebng b\u1eaft \u0111\u1ea7u xem x\u00e9t v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u00e1ch th\u1ee9c m\u00e0 nit\u01a1 – \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u01b0 l\u00e0 m\u1ed9t lo\u1ea1i ph\u00e2n b\u00f3n n\u00f4ng nghi\u1ec7p – \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 th\u1ef1c v\u1eadt, m\u1ee5c ti\u00eau c\u1ee7a h\u1ecd l\u00e0 t\u00ecm c\u00e1ch \u0111\u1ec3 t\u1ea1o ra c\u00e1c lo\u1ea1i c\u00e2y c\u1ea7n \u00edt nit\u01a1.<\/p>\n

“Vi\u1ec7c tri\u1ec3n khai\u00a0b\u00f3n ph\u00e2n \u0111\u1ea1m nh\u01b0 hi\u1ec7n nay kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00e1ch th\u00f4ng minh v\u1ec1 m\u1eb7t m\u00f4i tr\u01b0\u1eddng hay kinh t\u1ebf,” Busov, ng\u01b0\u1eddi nghi\u00ean c\u1ee9u ch\u1ee9c n\u0103ng b\u1ed9 gen c\u1ee7a s\u1ef1 ph\u00e1t tri\u1ec3n th\u1ef1c v\u1eadt, n\u00f3i. “Ch\u1ec9 c\u00f3 30 ph\u1ea7n tr\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi c\u00e1c th\u1ef1c v\u1eadt, ph\u1ea7n c\u00f2n l\u1ea1i \u0111i v\u00e0o n\u01b0\u1edbc ng\u1ea7m. N\u00f3 thay \u0111\u1ed5i \u0111\u1ea5t v\u00e0 l\u00e0m gia t\u0103ng s\u1ef1 n\u1edf hoa t\u1ea3o, kh\u00ed nh\u00e0 k\u00ednh v\u00e0 c\u00e1c lo\u1ea1i c\u00f4n tr\u00f9ng nh\u01b0 mu\u1ed7i mang b\u1ec7nh.”<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc\u00a0mu\u1ed1n ph\u00e1t tri\u1ec3n c\u00e1c lo\u1ea1i c\u00e2y s\u1eed d\u1ee5ng nit\u01a1 hi\u1ec7u qu\u1ea3 h\u01a1n, v\u00ec v\u1eady nit\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ph\u00e2n b\u00f3n \u00edt h\u01a1n. Nh\u01b0ng tr\u01b0\u1edbc ti\u00ean h\u1ecd ph\u1ea3i m\u1edf kh\u00f3a b\u00ed m\u1eadt v\u1ec1 c\u00e1c c\u01a1 ch\u1ebf di truy\u1ec1n n\u1eb1m b\u00ean d\u01b0\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 th\u1ef1c v\u1eadt.<\/p>\n

Victor\u00a0Busov\u00a0(b\u00ean\u00a0tr\u00e1i), Yordan Yordanov\u00a0(\u1edf gi\u1eefa)\u00a0v\u00e0\u00a0Hairong Wei\u00a0(b\u00ean\u00a0ph\u1ea3i),\u0111ang\u00a0ki\u1ec3m trac\u00e2y d\u01b0\u01a1ng th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecd.
\n(\u1ea2nh:\u00a0\u0110\u1ea1i h\u1ecdc c\u00f4ng ngh\u1ec7\u00a0Michigan)<\/p>\n

“Kh\u00f4ng ai bi\u1ebft c\u00e1c c\u01a1 ch\u1ebf\u00a0v\u1ec1\u00a0\u1ea3nh h\u01b0\u1edfng\u00a0c\u1ee7a\u00a0nit\u01a1 th\u1ea5p \u0111\u1ebfn r\u1ec5 c\u00e2y nh\u01b0 th\u1ebf n\u00e0o,” Busov gi\u1ea3i th\u00edch.H\u1ecd \u0111\u00e3 chuy\u1ec3n sang\u00a0s\u1eed d\u1ee5ng c\u00e2y\u00a0d\u01b0\u01a1ng cho c\u00e1c nghi\u00ean c\u1ee9u c\u1ee7a\u00a0m\u00ecnh, v\u00ec n\u00f3 l\u00e0 m\u1ed9t c\u00e2y tr\u1ed3ng nhi\u00ean li\u1ec7u sinh h\u1ecdc\u00a0ch\u1ee7 y\u1ebfu.<\/p>\n

C\u00f3 h\u00e0ng ch\u1ee5c ng\u00e0n gen trong b\u1ed9 gen c\u1ee7a c\u00e2y d\u01b0\u01a1ng v\u00e0 v\u1ea5n \u0111\u1ec1 l\u1edbn\u00a0l\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gen n\u00e0o \u0111ang l\u00e0m g\u00ec, ch\u00fang \u1ea3nh h\u01b0\u1edfng l\u1eabn nhau v\u00e0 ho\u1ea1t \u0111\u1ed9ng v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 \u0111i\u1ec1u h\u00f2a s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n nit\u01a1 th\u1ea5p.<\/p>\n

Wei, m\u1ed9t nh\u00e0 sinh h\u1ecdc ph\u00e2n t\u1eed, c\u0169ng c\u00f3 ki\u1ebfn \u200b\u200bth\u1ee9c r\u1ed9ng v\u1ec1 khoa h\u1ecdc m\u00e1y t\u00ednh, v\u00e0 \u00f4ng l\u00e0 ng\u01b0\u1eddi l\u00e3o luy\u1ec7n trong vi\u1ec7c \u00e1p d\u1ee5ng n\u00f3 \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c t\u1eadp h\u1ee3p d\u1eef li\u1ec7u sinh h\u1ecdc l\u1edbn. \u00d4ng \u0111\u00e3 nh\u1eadn nhi\u1ec7m v\u1ee5 g\u1ee1 r\u1ed1i s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a h\u01a1n 61.000 gen b\u1eb1ng c\u00e1ch t\u00ecm ki\u1ebfm m\u1ed9t “nh\u00e2n t\u1ed1 \u0111i\u1ec1u h\u00f2a ph\u00e2n c\u1ea5p cao”, hay gen “ch\u1ee7”.<\/p>\n

Trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecd \u1edf \u0111\u1ea1i h\u1ecdc c\u00f4ng ngh\u1ec7 Michigan, Busov v\u00e0 Yordanov tr\u1ed3ng c\u00e2y d\u01b0\u01a1ng con d\u01b0\u1edbi c\u00e1c m\u1ee9c \u0111\u1ed9 nit\u01a1 b\u00ecnh th\u01b0\u1eddng. Sau \u0111\u00f3, h\u1ecd chuy\u1ec3n ch\u00fang v\u00e0o m\u1ed9t m\u00f4i tr\u01b0\u1eddng h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 nit\u01a1. \u0110i\u1ec1u g\u00ec \u0111\u00e3 x\u1ea3y ra? ” Th\u1eadt \u0111\u00e1ng ng\u1ea1c nhi\u00ean, c\u00e1c r\u1ec5 \u0111\u00e3 l\u1edbn v\u00e0 d\u00e0i h\u01a1n,” Yordanov n\u00f3i. “Ch\u00fang t\u00f4i ngh\u0129 r\u1eb1ng r\u1ec5 \u0111ang t\u00ecm ki\u1ebfm nit\u01a1,” Busov cho bi\u1ebft. “Tuy nhi\u00ean, b\u1ed9 m\u00e1y di truy\u1ec1n \u0111\u1eb1ng sau s\u1ef1 t\u0103ng tr\u01b0\u1edfng n\u00e0y l\u00e0 g\u00ec?”<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 l\u00e0m m\u1ed9t lo\u1ea1t c\u00e1c th\u00ed nghi\u1ec7m theo th\u1eddi gian v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m nh\u01b0 nhau, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c gen li\u00ean quan \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i m\u00e0 h\u1ecd quan s\u00e1t \u0111\u01b0\u1ee3c. H\u1ecd t\u00ecm th\u1ea5y 9.198 gen s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i protein t\u1ea1i s\u00e1u th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau. B\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng di truy\u1ec1n, h\u1ecd \u0111\u00e3 thu h\u1eb9p nghi\u00ean c\u1ee9u v\u1edbi m\u1ed9t s\u1ed1 \u00edt c\u00e1c gen quan tr\u1ecdng c\u00f3 v\u1ebb nh\u01b0 \u0111\u00e3 ki\u1ec3m so\u00e1t ph\u1ea7n l\u1edbn c\u00e1c gen kh\u00e1c.<\/p>\n

Ph\u00e2n t\u00edch s\u00e2u h\u01a1n tr\u00ean m\u1ed9t gen \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 PtaNAC1. “Khi ch\u00fang t\u00f4i ng\u1eaft gen n\u00e0y, to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng \u0111\u00e1p \u1ee9ng, v\u00e0 c\u00e1c r\u1ec5 ph\u00e1t tri\u1ec3n h\u01a1n 58 ph\u1ea7n tr\u0103m so v\u1edbi nh\u00f3m \u0111\u1ed1i ch\u1ee9ng,” Busov n\u00f3i.<\/p>\n

Busov v\u00ed qu\u00e1 tr\u00ecnh n\u00e0y v\u1edbi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t lo\u1ea1i m\u00e1y. “C\u00f3 m\u1ed9t c\u00f4ng t\u1eafc ch\u00ednh \u0111\u1ec3 b\u1eadt \u0111\u1ed9ng c\u01a1,” \u00f4ng n\u00f3i. “\u0110\u1ed9ng c\u01a1 k\u00edch ho\u1ea1t c\u00f4ng t\u1eafc kh\u00e1c l\u00e0m cho t\u1ea5t c\u1ea3 c\u00e1c b\u00e1nh r\u0103ng nh\u1ecf v\u00e0 h\u1ed9p s\u1ed1 trong m\u00e1y l\u00e0m nh\u1eefng g\u00ec ch\u00fang c\u00f3 ngh\u0129a v\u1ee5 ph\u1ea3i l\u00e0m.” C\u00f4ng vi\u1ec7c c\u1ee7a Wei v\u1edbi h\u1ec7 th\u1ed1ng di truy\u1ec1n g\u00e2y ra s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 “\u0111\u00e3 cung c\u1ea5p cho ch\u00fang t\u00f4i m\u1ed9t c\u00f4ng t\u1eafc l\u1edbn,” Busov n\u00f3i.<\/p>\n

Hi\u1ec7n t\u1ea1i c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 hi\u1ec3u \u0111\u01b0\u1ee3c “\u0111\u1ed9ng c\u01a1”di truy\u1ec1n c\u1ee7a c\u00e2y d\u01b0\u01a1ng, h\u1ecd c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ed1ng c\u00e2y tr\u1ed3ng m\u1edbi c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n m\u1ea1nh tr\u00ean nh\u1eefng v\u00f9ng \u0111\u1ea5t kh\u00f3 tr\u1ed3ng tr\u1ecdt. “Ch\u00fang t\u00f4i mu\u1ed1n ph\u00e1t tri\u1ec3n c\u00e2y d\u01b0\u01a1ng th\u1eadm ch\u00ed ph\u00e1t tri\u1ec3n hi\u1ec7u qu\u1ea3 h\u01a1n trong m\u00f4i tr\u01b0\u1eddng \u00edt nit\u01a1,” Yordanov n\u00f3i.<\/p>\n

C\u00f3 m\u1ed9t l\u1ee3i \u00edch kh\u00e1c \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c th\u1ef1c v\u1eadt th\u00edch \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu nit\u01a1 l\u00e0 ch\u00fang c\u00f3 th\u1ec3 h\u00fat nit\u01a1 d\u01b0 th\u1eeba t\u1eeb ph\u00e2n b\u00f3n c\u00e2y tr\u1ed3ng ra kh\u1ecfi n\u01b0\u1edbc ng\u1ea7m. “\u0110i\u1ec1u \u0111\u00f3 t\u1ed1t cho c\u1ea3 th\u1ef1c v\u1eadt v\u00e0 m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean”, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9unh\u1eadn x\u00e9t.<\/p>\n

Ngu\u1ed3n: Sciencedaily<\/p>\n

http:\/\/www.sciencedaily.com\/releases\/2013\/07\/130708143313.htm<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Trong m\u1ed9t nghi\u00ean c\u1ee9u nh\u1eb1m\u00a0x\u00e1c \u0111\u1ecbnh\u00a0c\u00e1c gen\u00a0gen quan tr\u1ecdng\u00a0trong s\u1ef1 ph\u00e1t tri\u1ec3n r\u1ec5 c\u00e2y d\u01b0\u01a1ng, ba nh\u00e0 khoa h\u1ecdc\u00a0t\u1ea1i \u0111\u1ea1i h\u1ecdc\u00a0c\u00f4ng ngh\u1ec7 Michigan \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t m\u00f4 h\u00ecnh m\u1edbi cho c\u00e1ch\u00a0th\u1ee9c m\u00e0\u00a0gen t\u01b0\u01a1ng t\u00e1c\u00a0v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng c\u1ee7a nhau. \u0110\u0103ng ng\u00e0y 06-08-2013 trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi H\u1ecd c\u0169ng x\u00e1c \u0111\u1ecbnh […]\n","protected":false},"author":1,"featured_media":6420,"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\/1986"}],"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=1986"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/1986\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6420"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=1986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=1986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=1986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}