{"id":6763,"date":"2016-07-23T06:57:50","date_gmt":"2016-07-22T23:57:50","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=889"},"modified":"2016-07-23T06:57:50","modified_gmt":"2016-07-22T23:57:50","slug":"giong-lua-bien-doi-gen-giau-sat-va-kem","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/giong-lua-bien-doi-gen-giau-sat-va-kem\/","title":{"rendered":"Gi\u1ed1ng l\u00faa bi\u1ebfn \u0111\u1ed5i gen gi\u00e0u s\u1eaft v\u00e0 k\u1ebdm"},"content":{"rendered":"

Nh\u00f3m nghi\u00ean c\u1ee9u \u0111a ng\u00e0nh thu\u1ed9c c\u00e1c vi\u1ec7n, tr\u01b0\u1eddng c\u1ee7a Philippines, Colombia, Indonesia, Hoa K\u1ef3, \u00dac, v\u00e0 Nh\u1eadt b\u1ea3n \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng gi\u1ed1ng l\u00faa c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft v\u00e0 k\u1ebdm trong h\u1ea1t g\u1ea1o gia t\u0103ng \u0111\u00e1ng k\u1ec3 th\u00f4ng qua chi\u1ebfn l\u01b0\u1ee3c \u201cbiofortification\u201d. Nghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y gi\u1ed1ng l\u00faa bi\u1ebfn \u0111\u1ed5i gen \u0111\u00e3 gia t\u0103ng h\u00e0m l\u01b0\u1ee3ng s\u1eaft (Fe) l\u00ean \u0111\u1ebfn 15 micrograms, v\u00e0 h\u00e0m l\u01b0\u1ee3ng k\u1ebdm (Zn) l\u00ean \u0111\u1ebfn 45.7 micrograms tr\u00ean m\u1ed9t \u00a0gram h\u1ea1t g\u1ea1o tr\u1eafng \u0111\u00e3 \u0111\u00e1nh b\u00f3ng, m\u00e0 h\u00e0m l\u01b0\u1ee3ng c\u00e1c vi ch\u1ea5t dinh d\u01b0\u1ee1ng n\u00e0y t\u1ebf b\u00e0o ng\u01b0\u1eddi c\u00f3 th\u1ec3 h\u1ea5p thu \u0111\u01b0\u1ee3c.<\/p>\n

\"IRRIpng\"<\/a><\/p>\n

C\u00e1c h\u1ea1t g\u1ea1o tr\u1eafng \u1ea5y th\u00f4ng th\u01b0\u1eddng ch\u1ec9 ch\u1ee9a 2 micrograms s\u1eaft v\u00e0 16 micrograms k\u1ebdm tr\u00ean 1 gram g\u1ea1o. S\u1ef1 khi\u1ebfm khuy\u1ebft \u1ea5y v\u1ec1 h\u00e0m l\u01b0\u1ee3ng s\u1eaft r\u1ea5t kh\u00f3 t\u00ecm th\u1ea5y trong ng\u00e2n h\u00e0ng gen c\u00e2y l\u00faa theo ph\u01b0\u01a1ng ph\u00e1p lai t\u1ea1o gi\u1ed1ng truy\u1ec1n th\u1ed1ng; k\u1ebft qu\u1ea3 ch\u1ec9 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng th\u00eam 13 micrograms s\u1eaft v\u00e0 28 micrograms k\u1ebdm tr\u00ean 1 gram g\u1ea1o tr\u1eafng, \u0111\u00e1p \u1ee9ng r\u1ea5t th\u1ea5p y\u00eau c\u1ea7u dinh d\u01b0\u1ee1ng c\u1ee7a ng\u01b0\u1eddi (EAR: estimated average requirement), c\u00f3 ngh\u0129a l\u00e0 ch\u1ec9 \u0111\u00e1p \u1ee9ngll 30% EAR.<\/div>\n
<\/div>\n
C\u00e1c nh\u00e0 khoa h\u1ecdc trong nh\u00f3m nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 s\u1eed d\u1ee5ng c\u00e1c gen m\u00e3 h\u00f3a \u201cnicotianamine synthase\u201d t\u1eeb c\u00e2y l\u00faa v\u00e0 gen m\u00e3 h\u00f3a \u201cferritin\u201d t\u1eeb c\u00e2y \u0111\u1eadu n\u00e0nh c\u00f9ng m\u1ed9t l\u00fac, \u0111\u1ec3 t\u1ea1o ra gi\u1ed1ng l\u00faa gi\u00e0u vi d\u01b0\u1ee1ng ch\u1ea5t n\u00f3i tr\u00ean. Ng\u01b0\u1eddi \u0111\u00e3 \u0111\u00e3 chuy\u1ec3n th\u00e0nh c\u00f4ng c\u00e1c gen m\u1ee5c ti\u00eau n\u00e0y v\u00e0o gi\u1ed1ng l\u00faa IR64, v\u00e0 lai \u00a0ch\u1ecdn th\u00e0nh c\u00e1c gi\u1ed1ng l\u00faa indica kh\u00e1c. IR64 l\u00e0 gi\u1ed1ng l\u00faa ch\u1ee7 l\u1ef1c \u1edf Nam \u00c1 v\u00e0 \u0110\u1ed1ng Nam \u00c1 \u2013 n\u01a1i m\u00e0 ng\u01b0\u1eddi ta \u0111ang ch\u1ecbu \u0111\u1ef1ng s\u1ef1 thi\u1ebfu s\u1eaft v\u00e0 k\u1ebdm kh\u00e1 nghi\u00eam \u00a0tr\u1ecdng.<\/div>\n
<\/div>\n
Xem th\u00f4ng trin \u00a0Rice Today.<\/div>\n
Ho\u1eb7c http:\/\/ricetoday.irri.org\/genetically-engineered-rice-with-high-levels-of-iron-and-zinc-is-developed\/<\/div>\n","protected":false},"excerpt":{"rendered":"

Nh\u00f3m nghi\u00ean c\u1ee9u \u0111a ng\u00e0nh thu\u1ed9c c\u00e1c vi\u1ec7n, tr\u01b0\u1eddng c\u1ee7a Philippines, Colombia, Indonesia, Hoa K\u1ef3, \u00dac, v\u00e0 Nh\u1eadt b\u1ea3n \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng gi\u1ed1ng l\u00faa c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft v\u00e0 k\u1ebdm trong h\u1ea1t g\u1ea1o gia t\u0103ng \u0111\u00e1ng k\u1ec3 th\u00f4ng qua chi\u1ebfn l\u01b0\u1ee3c \u201cbiofortification\u201d. Nghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y gi\u1ed1ng l\u00faa bi\u1ebfn \u0111\u1ed5i gen \u0111\u00e3 […]\n","protected":false},"author":1,"featured_media":6279,"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\/6763"}],"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=6763"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6763\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6279"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}