{"id":6737,"date":"2015-10-15T07:48:49","date_gmt":"2015-10-15T00:48:49","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1166"},"modified":"2015-10-15T07:48:49","modified_gmt":"2015-10-15T00:48:49","slug":"su-the-hien-systemin-trong-ca-chua-lam-tang-cuong-tinh-khang-doi-voi-stress-sinh-hoc","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/su-the-hien-systemin-trong-ca-chua-lam-tang-cuong-tinh-khang-doi-voi-stress-sinh-hoc\/","title":{"rendered":"S\u1ef1 th\u1ec3 hi\u1ec7n systemin trong c\u00e0 chua l\u00e0m t\u0103ng c\u01b0\u1eddng t\u00ednh kh\u00e1ng \u0111\u1ed1i v\u1edbi stress sinh h\u1ecdc"},"content":{"rendered":"
Systemin l\u00e0 m\u1ed9t \u0111o\u1ea1n ph\u00e2n t\u1eed peptide truy\u1ec1n t\u00edn hi\u1ec7u, m\u00e0 t\u00edn hi\u1ec7u n\u00e0y l\u00e0m t\u0103ng ph\u1ea3n \u1ee9ng t\u1ef1 v\u1ec7 c\u1ee7a th\u1ef1c v\u1eadt khi n\u00f3 b\u1ecb th\u01b0\u01a1ng \u0169ng nh\u01b0 khi n\u00f3 b\u1ecb \u0111\u1ed9ng v\u1eadt \u0103n c\u1ecf (herbivore) t\u1ea5n c\u00f4ng trong tr\u01b0\u1eddng h\u1ee3p c\u00e2y c\u00e0 chua.\u00a0<\/span><\/div>\n
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Ph\u00e2n t\u1eed peptide n\u00e0y \u0111\u01b0\u1ee3c ph\u00f3ng th\u00edch t\u1eeb m\u1ed9t ti\u1ec1n ch\u1ea5t c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00e2n t\u1eed to h\u01a1n, \u0111\u00f3 l\u00e0 prosystemin. Mu\u1ed1n nghi\u00ean c\u1ee9u vai tr\u00f2 c\u1ee7a systemin, Mariangela Coppola v\u00e0 ctv. thu\u1ed9c \u0110\u1ea1i H\u1ecdc \u201cUniversit\u00e0 degli Studi di Napoli Federico II\u201d \u0111\u00e3 t\u1ea1o ra c\u00e2y c\u00e0 chua bi\u1ebfn \u0111\u1ed5i gen (Solanum lycopersicum) th\u1ec3 hi\u1ec7n m\u1ea1nh m\u1ebd prosystemin cDNA.<\/div>\n
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Nh\u1eefng d\u00f2ng c\u00e2y transgenic \u0111\u01b0\u1ee3c quan s\u00e1t th\u1ea5y c\u00f3 t\u00ednh kh\u00e1ng m\u1ea1nh h\u01a1n \u0111\u1ed1i v\u1edbi r\u1ea7y m\u1ec1m (aphids), c\u00e1c lo\u00e0i n\u1ea5m g\u00e2y b\u1ec7nh c\u00e2y (phytopathogenic fungi), v\u00e0 \u1ea5u tr\u00f9ng \u0103n th\u1ef1c v\u1eadt (phytophagous larvae). Ph\u00e2n t\u00edch c\u00f2n cho th\u1ea5y systemin l\u00e0m t\u0103ng c\u01b0\u1eddng m\u1ed9t lo\u1ea1t c\u00e1c gen c\u00f3 li\u00ean quan \u0111\u1ebfn c\u01a1 ch\u1ebf t\u1ef1 v\u1ec7 t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c ti\u1ebfn tr\u00ecnh truy\u1ec1n t\u00edn hi\u1ec7u kh\u00e1c nhau c\u1ee7a th\u1ef1c v\u1eadt. \u0110\u00e2y l\u00e0 nh\u1eefng gen \u0111i\u1ec1u ti\u1ebft theo ki\u1ec3u DOWN li\u00ean k\u1ebft v\u1edbi c\u01a1 ch\u1ebf c\u1ed1 \u0111\u1ecbnh carbon (carbon fixation) v\u00e0 c\u01a1 ch\u1ebf bi\u1ebfn d\u01b0\u1ee1ng carbohydrate.<\/p>\n

K\u1ebft qu\u1ea3 ch\u1ee9ng minh r\u1eb1ng trong c\u00e2y c\u00e0 chua, s\u1ef1 \u0111i\u1ec1u ti\u1ebft c\u1ee7a m\u1ed9t gen \u0111\u01a1n \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t lo\u1ea1t c\u00e1c ph\u1ea3n \u1ee9ng c\u1ee7a t\u00ednh kh\u00e1ng v\u1edbi stress sinh h\u1ecdc th\u00f4ng qua vi\u1ec7c vi\u1ec7c gia t\u0103ng c\u00e1c ti\u1ebfn tr\u00ecnh t\u1ef1 v\u1ec7 b\u00ean trong c\u00e2y.<\/p>\n

Xem \u00a0Plant Molecular Biology Reporter.<\/p>\n<\/div>\n

\"New<\/a><\/div>\n
H\u00ecnh:\u00a0<\/strong>\u1ea2nh h\u01b0\u1edfng c\u1ee7a s\u1ef1 th\u1ec3 hi\u1ec7n m\u1ea1nh m\u1ebd prosystemin \u0111\u1ed1i v\u1edbi n\u1ea5m b\u1ec7nh\u00a0Botrytis cinerea<\/em>\u00a0tr\u00ean to\u00e0n c\u00e2y c\u00e0 chua. Ph\u1ea3n \u1ee9ng \u0111\u1ed1i v\u1edbi\u00a0B. cinerea<\/em>\u00a0cho l\u00e2y nhi\u1ec5m nh\u00e2n t\u1ea1o tr\u00ean l\u00e1 c\u1ee7a gi\u1ed1ng c\u00e0 chua b\u00ecnh th\u01b0\u1eddng\u00a0Red Setter,<\/em>tr\u00ean l\u00e1 d\u00f2ng c\u00e0 chua chuy\u1ec3n gen\u00a0RSYS 24<\/em>\u00a0v\u00e0\u00a0RSYS 32<\/em>. Bi\u1ec3u \u0111\u1ed3 cho th\u1ea5y s\u1ed1 li\u1ec7u trung b\u00ecnh v\u1edbi sai s\u1ed1 (\u00b1s.d.) c\u1ee7a k\u00edch c\u1ee1 v\u1ebft b\u1ec7nh t\u1ea1i th\u1eddi \u0111i\u1ec3m 48, 96\u00a0gi\u1edd sau khi ch\u1ee7ng b\u1ec7nh (hpi). T\u1ea1i m\u1ed7i \u0111i\u1ec3m tr\u00ean t\u1ecda \u0111\u1ed9, c\u00e1c gi\u00e1 tr\u1ecb kh\u00e1c bi\u1ec7t c\u00f3 \u00fd ngh\u0129a gi\u1eefa nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng v\u00e0 nghi\u1ec7m th\u1ee9c c\u00e1c d\u00f2ng chuy\u1ec3n gen (*p<\/em>\u2009<\u20090.05; Student\u2019s\u00a0t<\/em>\u00a0test).<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Systemin l\u00e0 m\u1ed9t \u0111o\u1ea1n ph\u00e2n t\u1eed peptide truy\u1ec1n t\u00edn hi\u1ec7u, m\u00e0 t\u00edn hi\u1ec7u n\u00e0y l\u00e0m t\u0103ng ph\u1ea3n \u1ee9ng t\u1ef1 v\u1ec7 c\u1ee7a th\u1ef1c v\u1eadt khi n\u00f3 b\u1ecb th\u01b0\u01a1ng \u0169ng nh\u01b0 khi n\u00f3 b\u1ecb \u0111\u1ed9ng v\u1eadt \u0103n c\u1ecf (herbivore) t\u1ea5n c\u00f4ng trong tr\u01b0\u1eddng h\u1ee3p c\u00e2y c\u00e0 chua.\u00a0 Ph\u00e2n t\u1eed peptide n\u00e0y \u0111\u01b0\u1ee3c ph\u00f3ng th\u00edch t\u1eeb m\u1ed9t ti\u1ec1n […]\n","protected":false},"author":1,"featured_media":6301,"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\/6737"}],"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=6737"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6301"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}