{"id":6630,"date":"2013-10-29T02:07:33","date_gmt":"2013-10-28T19:07:33","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1913"},"modified":"2013-10-29T02:07:33","modified_gmt":"2013-10-28T19:07:33","slug":"cay-su-dung-duong-de-xac-dinh-thoi-gian-trong-ngay","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/cay-su-dung-duong-de-xac-dinh-thoi-gian-trong-ngay\/","title":{"rendered":"C\u00e2y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1eddi gian trong ng\u00e0y"},"content":{"rendered":"
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Gi\u1ed1ng nh\u01b0 \u0111\u1ed9ng v\u1eadt, th\u1ef1c v\u1eadt c\u0169ng c\u00f3 \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc 24 gi\u1edd, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nh\u1ecbp \u0111i\u1ec7u s\u1ed1ng h\u1eb1ng ng\u00e0y. \u0110\u1ed3ng h\u1ed3 sinh h\u1ecdc n\u00e0y cho th\u1ef1c v\u1eadt kh\u1ea3 n\u0103ng b\u1ea9m sinh \u0111\u1ec3 \u0111o th\u1eddi gian, th\u1eadm ch\u00ed khi kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng \u2013 ch\u00fang kh\u00f4ng ch\u1ec9 ph\u1ea3n \u1ee9ng l\u1ea1i v\u1edbi m\u1eb7t tr\u1eddi m\u1ecdc m\u00e0 ch\u00fang c\u00f2n bi\u1ebft khi n\u00e0o m\u1eb7t tr\u1eddi s\u1ebd m\u1ecdc r\u1ed3i \u0111i\u1ec1u ch\u1ec9nh sinh h\u1ecdc c\u1ee7a ch\u00fang cho ph\u00f9 h\u1ee3p.\u00a0<\/span>\u0110\u0103ng ng\u00e0y 29-10-2013<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/p>\n<\/div>\n

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Kh\u1ea3 n\u0103ng x\u00e1c \u0111\u1ecbnh th\u1eddi gian n\u00e0y \u0111em l\u1ea1i 1 l\u1ee3i th\u1ebf c\u1ea1nh tranh quan tr\u1ecdng v\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft trong c\u00e1c qu\u00e1 tr\u00ecnh sinh h\u1ecdc, nh\u01b0 qu\u00e1 tr\u00ecnh ra hoa, t\u1ecfa h\u01b0\u01a1ng v\u00e0 s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng l\u00e1 ch\u1eb3ng h\u1ea1n.<\/span><\/span><\/p>\n

C\u00e1c khoa h\u1ecdc gia \u0111\u1ebfn t\u1eeb Khoa Khoa h\u1ecdc Th\u1ef1c v\u1eadt thu\u1ed9c Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Cambridge \u0111ang nghi\u00ean c\u1ee9u c\u00e1ch th\u1ee9c th\u1ef1c v\u1eadt c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp v\u00e0 duy tr\u00ec \u0111\u1ed3ng h\u1ed3 b\u00ean trong n\u00e0y. H\u1ecd nh\u1eadn th\u1ea5y r\u1eb1ng c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng do c\u00e2y t\u1ea1o ra l\u00e0 ch\u00eca kh\u00f3a cho vi\u1ec7c x\u00e1c \u0111\u1ecbnh th\u1eddi gian n\u00e0y.<\/span><\/span><\/p>\n

Th\u1ef1c v\u1eadt t\u1ea1o ra \u0111\u01b0\u1eddng qua qu\u00e1 tr\u00ecnh quang h\u1ee3p; ch\u00ednh c\u00e1ch bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi th\u00e0nh 1 d\u1ea1ng h\u00f3a ch\u1ea5t c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c n\u00e0y l\u1ea1i c\u1ea7n thi\u1ebft cho s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 s\u1ef1 ho\u1ea1t \u0111\u1ed9ng ch\u1ee9c n\u0103ng.<\/span><\/span><\/p>\n

Nghi\u00ean c\u1ee9u \u0111\u00e3 cho th\u1ea5y r\u1eb1ng c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng n\u00e0y c\u00f2n \u0111\u00f3ng vai tr\u00f2 trong c\u00e1c nh\u1ecbp s\u1ed1ng h\u1eb1ng ng\u00e0y. C\u00e1c nghi\u00ean c\u1ee9u gia \u0111\u00e3 nghi\u00ean c\u1ee9u nh\u1eefng t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng n\u00e0y b\u1eb1ng c\u00e1ch theo d\u00f5i c\u00e1c c\u00e2y con \u1edf m\u00f4i tr\u01b0\u1eddng kh\u00f4ng c\u00f3 CO2 \u0111\u1ec3 ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh quang h\u1ee3p, v\u00e0 b\u1eb1ng c\u00e1ch tr\u1ed3ng nh\u1eefng c\u00e2y bi\u1ebfn \u0111\u1ed5i gen r\u1ed3i theo d\u00f5i sinh h\u1ecdc c\u1ee7a ch\u00fang. Ng\u01b0\u1eddi ta nh\u1eadn th\u1ea5y vi\u1ec7c t\u1ea1o ra c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng \u0111\u00e3 \u0111i\u1ec1u ti\u1ebft c\u00e1c gen ch\u1ee7 y\u1ebfu ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 nh\u1ecbp sinh h\u1ecdc 24 gi\u1edd n\u00e0y.<\/span><\/span><\/p>\n

Ti\u1ebfn s\u0129 Alex Webb \u0111\u1ebfn t\u1eeb Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Cambridge gi\u1ea3i th\u00edch: \u201cNghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i cho th\u1ea5y r\u1eb1ng l\u01b0\u1ee3ng \u0111\u01b0\u1eddng trong c\u00e2y \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong vi\u1ec7c \u0111\u1ed3ng b\u1ed9 h\u00f3a c\u00e1c nh\u1ecbp \u0111i\u1ec7u h\u1eb1ng ng\u00e0y v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh n\u00f3. Ch\u1eb3ng h\u1ea1n, vi\u1ec7c ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh quang h\u1ee3p \u0111\u00e3 l\u00e0m ch\u1eadm \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc c\u1ee7a c\u00e2y t\u1eeb 2-3 gi\u1edd\u201d.<\/span><\/span><\/p>\n

Nghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y r\u1eb1ng qu\u00e1 tr\u00ecnh quang h\u1ee3p c\u00f3 \u1ea3nh h\u01b0\u1edfng s\u00e2u s\u1eafc \u0111\u1ebfn vi\u1ec7c thi\u1ebft l\u1eadp v\u00e0 duy tr\u00ec c\u00e1c nh\u1ecbp \u0111i\u1ec7u sinh h\u1ecdc h\u1eb1ng ng\u00e0y \u1edf th\u1ef1c v\u1eadt, \u0111i\u1ec1u \u0111\u00f3 ch\u1ee9ng t\u1ecf vai tr\u00f2 quan tr\u1ecdng c\u1ee7a qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t trong vi\u1ec7c \u0111i\u1ec1u ti\u1ebft \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc.<\/span><\/span><\/p>\n

Ti\u1ebfn s\u0129 Mike Haydon \u0111\u1ebfn t\u1eeb Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc York cho bi\u1ebft th\u00eam: \u201cVi\u1ec7c t\u00edch l\u0169y \u0111\u01b0\u1eddng trong c\u00e2y \u0111em l\u1ea1i 1 ki\u1ec3u ph\u1ea3n h\u1ed3i v\u1ec1 chu k\u1ef3 sinh h\u1ecdc ng\u00e0y \u0111\u00eam \u1edf th\u1ef1c v\u1eadt. Ch\u00fang t\u00f4i cho r\u1eb1ng \u0111\u00e2y l\u00e0 1 c\u00e1ch b\u00e1o cho c\u00e2y bi\u1ebft r\u1eb1ng n\u0103ng l\u01b0\u1ee3ng \u1edf d\u1ea1ng \u0111\u01b0\u1eddng \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c nhi\u1ec7m v\u1ee5 trao \u0111\u1ed5i ch\u1ea5t quan tr\u1ecdng\u201d.<\/span><\/span><\/p>\n

Theo <\/span><\/span><\/strong><\/em>Science Daily.<\/span><\/span><\/strong><\/em><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Gi\u1ed1ng nh\u01b0 \u0111\u1ed9ng v\u1eadt, th\u1ef1c v\u1eadt c\u0169ng c\u00f3 \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc 24 gi\u1edd, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nh\u1ecbp \u0111i\u1ec7u s\u1ed1ng h\u1eb1ng ng\u00e0y. \u0110\u1ed3ng h\u1ed3 sinh h\u1ecdc n\u00e0y cho th\u1ef1c v\u1eadt kh\u1ea3 n\u0103ng b\u1ea9m sinh \u0111\u1ec3 \u0111o th\u1eddi gian, th\u1eadm ch\u00ed khi kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng \u2013 ch\u00fang kh\u00f4ng ch\u1ec9 ph\u1ea3n \u1ee9ng l\u1ea1i v\u1edbi m\u1eb7t tr\u1eddi […]\n","protected":false},"author":1,"featured_media":6397,"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\/6630"}],"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=6630"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6630\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6397"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}