![\"alt\"](\"http:\/\/khoahocvacongnghevietnam.com.vn\/images\/stories\/thang-11-2017\/2211-vikhuan.jpg\")
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M\u1eb7c d\u00f9 vi khu\u1ea9n kh\u00f4ng c\u00f3 c\u00e1c c\u01a1 quan c\u1ea3m gi\u00e1c theo ngh\u0129a c\u1ed5 \u0111i\u1ec3n, nh\u01b0ng ch\u00fang v\u1eabn r\u1ea5t nh\u1ea1y c\u1ea3m trong vi\u1ec7c nh\u1eadn th\u1ee9c m\u00f4i tr\u01b0\u1eddng c\u1ee7a ch\u00fang. Nh\u00f3m c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Khoa Biozentrum \u0111\u1ebfn t\u1eeb \u0110\u1ea1i h\u1ecdc Basel – Th\u1ee5y S\u1ef9, \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng, vi khu\u1ea9n kh\u00f4ng ch\u1ec9 ph\u1ea3n \u1ee9ng v\u1edbi t\u00edn hi\u1ec7u h\u00f3a h\u1ecdc, m\u00e0 c\u00f2n c\u00f3 c\u1ea3m gi\u00e1c li\u00ean l\u1ea1c. Trong b\u00e0i b\u00e1o khoa h\u1ecdc g\u1ea7n \u0111\u00e2y c\u1ee7a h\u1ecd, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c l\u00e0m th\u1ebf n\u00e0o c\u00e1c vi khu\u1ea9n nh\u1eadn di\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u0111\u00e1p \u1ee9ng v\u1edbi s\u1ef1 k\u00edch th\u00edch c\u01a1 h\u1ecdc n\u00e0y trong v\u00e0i gi\u00e2y. C\u01a1 ch\u1ebf n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi c\u00e1c m\u1ea7m b\u1ec7nh \u0111\u1ecbnh c\u01b0 v\u00e0 t\u1ea5n c\u00f4ng c\u00e1c t\u1ebf b\u00e0o ch\u1ee7 c\u1ee7a ch\u00fang.<\/p>\n
\u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c nh\u01b0 v\u1eady, n\u00f3 th\u00f4ng qua ni\u00eam m\u1ea1c ho\u1eb7c l\u1edbp l\u00f3t ru\u1ed9t, c\u00e1c m\u00f4 v\u00e0 b\u1ec1 m\u1eb7t kh\u00e1c nhau c\u1ee7a c\u01a1 th\u1ec3 l\u00e0 k\u1ebd h\u1edf cho c\u00e1c m\u1ea7m b\u1ec7nh do vi khu\u1ea9n g\u00e2y ra. Trong v\u00e0i gi\u00e2y \u0111\u1ea7u ti\u00ean; th\u1eddi \u0111i\u1ec3m ch\u1ea1m v\u00e0o; th\u01b0\u1eddng l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi s\u1ef1 nhi\u1ec5m th\u00e0nh c\u00f4ng. M\u1ed9t s\u1ed1 m\u1ea7m b\u1ec7nh s\u1eed d\u1ee5ng k\u00edch th\u00edch c\u01a1 h\u1ecdc nh\u01b0 l\u00e0 k\u00edch ho\u1ea1t \u0111\u1ec3 t\u1ea1o ra \u0111\u1ed9ng l\u1ef1c v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m h\u1ecfng c\u00e1c m\u00f4 ch\u1ee7. Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng c\u00e1c vi khu\u1ea9n c\u00f3 \u00fd ngh\u0129a nh\u01b0 th\u1ebf n\u00e0o tr\u00ean b\u1ec1 m\u1eb7t v\u00e0 \u0111i\u1ec1u g\u00ec x\u1ea3y ra trong nh\u1eefng gi\u00e2y \u0111\u1ea7u ti\u00ean quan tr\u1ecdng n\u00e0y.<\/p>\n
Trong nh\u1eefng th\u1eadp k\u1ef7 g\u1ea7n \u0111\u00e2y, nghi\u00ean c\u1ee9u \u0111\u00e3 c\u00f3 nh\u1eefng ti\u1ebfn b\u1ed9 trong vi\u1ec7c kh\u00e1m ph\u00e1 c\u00e1ch th\u1ee9c m\u00e0 vi khu\u1ea9n c\u1ea3m nh\u1eadn v\u00e0 x\u1eed l\u00fd t\u00edn hi\u1ec7u h\u00f3a h\u1ecdc. Jenal n\u00f3i: Tuy nhi\u00ean, ch\u00fang ta \u00edt bi\u1ebft \u0111\u01b0\u1ee3c vi khu\u1ea9n \u0111\u1ecdc k\u00edch th\u00edch c\u01a1 h\u1ecdc v\u00e0 c\u00e1ch ch\u00fang thay \u0111\u1ed5i h\u00e0nh vi c\u1ee7a ch\u00fang theo nh\u1eefng t\u00edn hi\u1ec7u n\u00e0y. S\u1eed d\u1ee5ng Caulobacter kh\u00f4ng g\u00e2y b\u1ec7nh nh\u01b0 l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh, nh\u00f3m c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e3 l\u1ea7n \u0111\u1ea7u ti\u00ean ch\u1ee9ng minh \u0111\u01b0\u1ee3c r\u1eb1ng vi khu\u1ea9n c\u00f3 \u201cc\u1ea3m gi\u00e1c ch\u1ea1m v\u00e0o\u201d. C\u01a1 ch\u1ebf n\u00e0y gi\u00fap ch\u00fang nh\u1eadn ra b\u1ec1 m\u1eb7t v\u00e0 t\u1ea1o ra keo d\u00ednh ri\u00eang c\u1ee7a t\u1ebf b\u00e0o.<\/p>\n
Vi khu\u1ea9n Caulobacter khi b\u01a1i t\u1ea1o ra v\u00f2ng quay trong v\u1ecf t\u1ebf b\u00e0o c\u1ee7a ch\u00fang v\u1edbi m\u1ed9t v\u1eadt nh\u00f4 ra d\u00e0i, nh\u01b0 l\u00e1 c\u1edd. V\u00f2ng quay l\u00e1 c\u1edd cho ph\u00e9p vi khu\u1ea9n di chuy\u1ec3n trong ch\u1ea5t l\u1ecfng. V\u00f2ng quay (rotor) c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u01a1 quan c\u1ea3m nh\u1eadn mechano. \u0110\u1ed9ng c\u01a1 xoay \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi d\u00f2ng proton v\u00e0o trong t\u1ebf b\u00e0o qua c\u00e1c k\u00eanh ion. Khi c\u00e1c t\u1ebf b\u00e0o b\u01a1i ch\u1ea1m v\u00e0o b\u1ec1 m\u1eb7t, \u0111\u1ed9ng c\u01a1 b\u1ecb x\u00e1o tr\u1ed9n v\u00e0 d\u00f2ng proton b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p>\n
C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho r\u1eb1ng \u0111\u00e2y l\u00e0 t\u00edn hi\u1ec7u l\u00e0m t\u1ecfa ra ph\u1ea3n \u1ee9ng: T\u1ebf b\u00e0o vi khu\u1ea9n hi\u1ec7n t\u1ea1i t\u0103ng c\u01b0\u1eddng s\u1ef1 t\u1ed5ng h\u1ee3p c\u1ee7a t\u00edn hi\u1ec7u th\u1ee9 hai, qua \u0111\u00f3 k\u00edch th\u00edch s\u1ef1 s\u1ea3n sinh m\u1ed9t ch\u1ea5t k\u1ebft d\u00ednh v\u1eefng ch\u1eafc g\u1eafn k\u1ebft vi khu\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t trong v\u00f2ng v\u00e0i gi\u00e2y. Jenal n\u00f3i: \u0110\u00e2y l\u00e0 m\u1ed9t v\u00ed d\u1ee5 \u0111\u1ea7y \u1ea5n t\u01b0\u1ee3ng v\u1ec1 s\u1ef1 thay \u0111\u1ed5i nhanh ch\u00f3ng v\u00e0 \u0111\u1eb7c bi\u1ec7t c\u1ee7a vi khu\u1ea9n c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00e0nh vi c\u1ee7a ch\u00fang khi ch\u00fang ch\u1ea1m b\u1ec1 m\u1eb7t. M\u1eb7c d\u00f9 Caulobacter l\u00e0 m\u1ed9t lo\u1ea1i vi khu\u1ea9n m\u00f4i tr\u01b0\u1eddng v\u00f4 h\u1ea1i, nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a ch\u00fang t\u00f4i c\u00f3 li\u00ean quan \u0111\u1ebfn s\u1ef1 hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1c b\u1ec7nh truy\u1ec1n nhi\u1ec5m. Nh\u1eefng g\u00ec ch\u00fang ta ph\u00e1t hi\u1ec7n trong Caulobacter c\u0169ng \u00e1p d\u1ee5ng cho c\u00e1c m\u1ea7m b\u1ec7nh quan tr\u1ecdng c\u1ee7a con ng\u01b0\u1eddi. \u0110\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n v\u00e0 \u0111i\u1ec1u tr\u1ecb nhi\u1ec5m tr\u00f9ng, b\u1eaft bu\u1ed9c ph\u1ea3i hi\u1ec3u r\u00f5 h\u01a1n c\u00e1c qu\u00e1 tr\u00ecnh x\u1ea3y ra trong v\u00e0i gi\u00e2y \u0111\u1ea7u ti\u00ean sau khi ti\u1ebfp x\u00fac b\u1ec1 m\u1eb7t.<\/p>\n
(Vista)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" M\u1eb7c d\u00f9 vi khu\u1ea9n kh\u00f4ng c\u00f3 c\u00e1c c\u01a1 quan c\u1ea3m gi\u00e1c theo ngh\u0129a c\u1ed5 \u0111i\u1ec3n, nh\u01b0ng ch\u00fang v\u1eabn r\u1ea5t nh\u1ea1y c\u1ea3m trong vi\u1ec7c nh\u1eadn th\u1ee9c m\u00f4i tr\u01b0\u1eddng c\u1ee7a ch\u00fang. Nh\u00f3m c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Khoa Biozentrum \u0111\u1ebfn t\u1eeb \u0110\u1ea1i h\u1ecdc Basel – Th\u1ee5y S\u1ef9, \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng, vi khu\u1ea9n kh\u00f4ng ch\u1ec9 ph\u1ea3n […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7844","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7844"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7844\/revisions"}],"predecessor-version":[{"id":7845,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7844\/revisions\/7845"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}