{"id":7850,"date":"2010-11-25T15:16:00","date_gmt":"2010-11-25T15:16:00","guid":{"rendered":"https:\/\/chanhkien.org\/?p=7850"},"modified":"2025-05-12T10:28:18","modified_gmt":"2025-05-12T03:28:18","slug":"thuc-vat-nhan-biet-duoc-anh-chi-em-ruot-cua-chung","status":"publish","type":"post","link":"https:\/\/chanhkien.org\/2010\/11\/thuc-vat-nhan-biet-duoc-anh-chi-em-ruot-cua-chung.html","title":{"rendered":"Th\u1ef1c v\u1eadt nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c anh ch\u1ecb em ru\u1ed9t c\u1ee7a ch\u00fang"},"content":{"rendered":"<div id=\"attachment_7851\" style=\"width: 360px\" class=\"wp-caption aligncenter\">\n<a href=\"https:\/\/chanhkien.org\/wp-content\/uploads\/2010\/11\/SiblingPlants.jpg\"><img decoding=\"async\" aria-describedby=\"caption-attachment-7851\" class=\"size-full wp-image-7851\" title=\"SiblingPlants\" src=\"https:\/\/chanhkien.org\/wp-content\/uploads\/2010\/11\/SiblingPlants.jpg\" alt=\"\" width=\"350\" height=\"262\" srcset=\"https:\/\/chanhkien.org\/wp-content\/uploads\/2010\/11\/SiblingPlants.jpg 350w, https:\/\/chanhkien.org\/wp-content\/uploads\/2010\/11\/SiblingPlants-300x224.jpg 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/a><\/p>\n<p id=\"caption-attachment-7851\" class=\"wp-caption-text\">Khi c\u00e1c c\u00e2y l\u00e0 anh ch\u1ecb em ru\u1ed9t l\u1edbn l\u00ean \u1edf c\u1ea1nh nhau, l\u00e1 c\u1ee7a ch\u00fang th\u01b0\u1eddng ch\u1ea1m v\u00e0 b\u1ec7n v\u00e0o nhau, trong khi c\u00e1c c\u00e2y xa l\u1ea1 m\u1ecdc th\u1eb3ng l\u00ean v\u00e0 kh\u00f4ng ch\u1ea1m v\u00e0o c\u00e2y kh\u00e1c. (sxc.hu)<\/p>\n<\/div>\n<p>Kh\u00f4ng h\u1ec1 h\u01b0 c\u1ea5u khi n\u00f3i r\u1eb1ng c\u00e1c c\u00e2y l\u00e0 anh ch\u1ecb em ru\u1ed9t \u2013 sinh tr\u01b0\u1edfng t\u1eeb c\u00e1c h\u1ea1t gi\u1ed1ng c\u1ee7a c\u00f9ng m\u1ed9t c\u00e2y \u2013 c\u00f3 th\u1ec3 nh\u1eadn ra nhau v\u00e0 \u0111\u1ed1i x\u1eed v\u1edbi nhau t\u1ed1t h\u01a1n l\u00e0 c\u00e1c c\u00e2y kh\u00f4ng c\u00f3 quan h\u1ec7 h\u1ecd h\u00e0ng, ho\u1eb7c \u201cnh\u1eefng k\u1ebb l\u1ea1 m\u1eb7t\u201d kh\u00e1c. Hi\u1ec7n t\u01b0\u1ee3ng nh\u1eadn ra h\u1ecd h\u00e0ng \u1edf th\u1ef1c v\u1eadt n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c nh\u1eadn th\u1ea5y trong c\u00e1c nghi\u00ean c\u1ee9u khoa h\u1ecdc.<\/p>\n<p>Trong m\u1ed9t nghi\u00ean c\u1ee9u t\u1eeb n\u0103m 2007, Ti\u1ebfn s\u0129 Susan Dudley, thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc McMaster \u1edf Canada, \u0111\u00e3 cho th\u1ea5y s\u1ef1 c\u1ea1nh tranh gi\u1eefa th\u1ef1c v\u1eadt v\u1edbi nhau. Theo ph\u00e1t hi\u1ec7n c\u1ee7a b\u00e0 (c\u00f3 t\u1ea1i \u0111\u1ecba ch\u1ec9 <a href=\"http:\/\/rsbl.royalsocietypublishing.org\/content\/3\/4\/435.full\">http:\/\/rsbl.royalsocietypublishing.org\/content\/3\/4\/435.full<\/a> ), khi m\u1ed9t c\u00e1i c\u00e2y bu\u1ed9c ph\u1ea3i chia s\u1ebb m\u1ed9t chi\u1ebfc b\u00ecnh v\u1edbi c\u00e1c c\u00e1i c\u00e2y c\u00f9ng lo\u00e0i kh\u00e1c, n\u00f3 tr\u1edf n\u00ean c\u1ea1nh tranh m\u1ed9t c\u00e1ch d\u1eef d\u1ed9i v\u00e0 t\u0103ng c\u01b0\u1eddng ph\u00e1t tri\u1ec3n b\u1ed9 r\u1ec5. Tuy nhi\u00ean, khi h\u00e0ng x\u00f3m c\u1ee7a n\u00f3 l\u00e0 m\u1ed9t c\u00e1i c\u00e2y anh ch\u1ecb em ru\u1ed9t \u2013 t\u1ee9c l\u00e0 m\u1ed9t c\u00e1i c\u00e2y t\u1eeb c\u00f9ng m\u1ed9t c\u00e2y m\u1eb9 \u2013 ch\u00fang kh\u00f4ng c\u1ea1nh tranh v\u1edbi nhau.<\/p>\n<p>Trong m\u1ed9t nghi\u00ean c\u1ee9u kh\u00e1c \u0111\u01b0\u1ee3c \u0111\u0103ng trong <em>T\u1ea1p ch\u00ed Th\u1ef1c v\u1eadt h\u1ecdc Hoa K\u1ef3<\/em>, Ti\u1ebfn s\u0129 Dudley v\u00e0 Ti\u1ebfn s\u0129 Guillermo Murphy, c\u0169ng thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc McMaster, \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng khi c\u00e1c c\u00e1i c\u00e2y h\u00e0ng x\u00f3m l\u00e0 h\u1ecd h\u00e0ng, lo\u00e0i <em>Impatiens pallida<\/em> c\u00f3 xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n d\u00e0i th\u00e2n v\u00e0 ph\u00e2n c\u00e0nh \u0111\u1ec3 c\u00f3 th\u1ec3 l\u1ea5y \u0111\u01b0\u1ee3c nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n m\u00e0 kh\u00f4ng che m\u1ea5t nh\u1eefng ng\u01b0\u1eddi h\u1ecd h\u00e0ng \u1edf b\u00ean c\u1ea1nh. Nh\u01b0ng khi h\u00e0ng x\u00f3m c\u1ee7a ch\u00fang l\u00e0 nh\u1eefng k\u1ebb l\u1ea1 m\u1eb7t, ch\u00fang c\u00f3 xu h\u01b0\u1edbng chuy\u1ec3n nhi\u1ec1u t\u00e0i nguy\u00ean h\u01a1n t\u1eeb b\u1ed9 r\u1ec5 sang l\u00e1, v\u00e0 sinh ra nhi\u1ec1u l\u00e1 l\u1edbn h\u01a1n \u0111\u1ec3 c\u00f3 th\u1ec3 t\u1eadn h\u01b0\u1edfng ngu\u1ed3n \u00e1nh s\u00e1ng h\u1eefu h\u1ea1n v\u00e0 \u0111\u1ed3ng th\u1eddi t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn nh\u1eefng c\u00e2y h\u00e0ng x\u00f3m b\u1eb1ng c\u00e1ch che khu\u1ea5t ch\u00fang.<\/p>\n<p>M\u1ed9t nghi\u00ean c\u1ee9u c\u1ee7a c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng nh\u1eefng c\u00e1i c\u00e2y l\u1ea1 \u0111\u01b0\u1ee3c tr\u1ed3ng b\u00ean c\u1ea1nh nhau th\u01b0\u1eddng m\u1ecdc th\u1ea5p h\u01a1n v\u00ec r\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c \u0111\u01b0a xu\u1ed1ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n b\u1ed9 r\u1ec5. M\u1eb7t kh\u00e1c, c\u00e1c c\u00e2y anh ch\u1ecb em ru\u1ed9t kh\u00f4ng c\u1ea1nh tranh l\u1eabn nhau, v\u00e0 b\u1ed9 r\u1ec5 c\u1ee7a ch\u00fang th\u01b0\u1eddng n\u00f4ng h\u01a1n nhi\u1ec1u. Th\u00eam v\u00e0o \u0111\u00f3, khi c\u00e1c c\u00e2y anh ch\u1ecb em ru\u1ed9t m\u1ecdc c\u1ea1nh nhau, l\u00e1 c\u1ee7a ch\u00fang th\u01b0\u1eddng ch\u1ea1m v\u00e0 \u0111an xen v\u00e0o nhau, nh\u01b0ng c\u00e1c c\u00e2y l\u1ea1 m\u1eb7t kh\u00e1c th\u00ec m\u1ecdc th\u1eb3ng l\u00ean v\u00e0 tr\u00e1nh ch\u1ea1m v\u00e0o nhau.<\/p>\n<p>\u201cC\u00f3 th\u1ec3 l\u00e0 khi c\u00e1c c\u00e2y h\u1ecd h\u00e0ng \u0111\u01b0\u1ee3c tr\u1ed3ng c\u00f9ng nhau, ch\u00fang c\u00f3 th\u1ec3 c\u00e2n b\u1eb1ng vi\u1ec7c h\u1ea5p thu ch\u1ea5t dinh d\u01b0\u1ee1ng v\u00e0 kh\u00f4ng tham lam\u201d, Ti\u1ebfn s\u0129 Harsh Bais, t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y n\u00f3i trong m\u1ed9t th\u00f4ng c\u00e1o b\u00e1o ch\u00ed. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho r\u1eb1ng vi\u1ec7c nh\u1eadn ra h\u1ecd h\u00e0ng l\u00e0 c\u00f3 th\u1ec3 nh\u1edd c\u00e1c t\u00edn hi\u1ec7u h\u00f3a h\u1ecdc m\u00e0 r\u1ec5 c\u00e2y ti\u1ebft ra.<\/p>\n<p>V\u00e0o th\u00e1ng 6 n\u0103m 2009, Ti\u1ebfn s\u0129 Richard Karban thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Davis California \u0111\u00e3 c\u00f4ng b\u1ed1 nghi\u00ean c\u1ee9u c\u1ee7a \u00f4ng, trong \u0111\u00f3 ch\u1ec9 ra r\u1eb1ng c\u00e1c c\u00e2y <em>sagebrush<\/em> kh\u00f4ng ch\u1ec9 nh\u1eadn ra \u201cc\u00e1c c\u00e2y sinh s\u1ea3n v\u00f4 t\u00ednh\u201d c\u1ee7a ch\u00fang \u2013 c\u00e1c c\u00e0nh gi\u00e2m c\u00f3 gene di truy\u1ec1n gi\u1ed1ng h\u1ec7t nhau \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf b\u00ean c\u1ea1nh \u2013 ch\u00fang th\u1eadm ch\u00ed c\u00f3 th\u1ec3 th\u00f4ng b\u00e1o nguy hi\u1ec3m cho nhau.<\/p>\n<p>Khi c\u00e1c c\u00e2y <em>sagebrush<\/em> b\u1ecb \u0111\u1ed9ng v\u1eadt \u0103n c\u1ecf l\u00e0m t\u1ed5n h\u1ea1i, ch\u00fang ph\u00e1t ra c\u00e1c t\u00edn hi\u1ec7u d\u1ec5 bay h\u01a1i \u0111\u1ec3 c\u1ea3nh b\u00e1o cho \u0111\u1ed3ng lo\u1ea1i c\u1ee7a m\u00ecnh v\u1ec1 nguy hi\u1ec3m s\u1eafp x\u1ea3y ra. C\u00e1c c\u00e0nh gi\u00e2m c\u00f3 gene di truy\u1ec1n gi\u1ed1ng h\u1ec7t nhau trong v\u00f2ng 60 cm c\u00e1ch c\u00e2y h\u00e0ng x\u00f3m \u0111\u01b0\u1ee3c c\u1eaft ra \u0111\u1ec3 th\u00ed nghi\u1ec7m \u1edf trong v\u01b0\u1eddn, sau khi ti\u1ebfp nh\u1eadn c\u00e1c h\u00f3a ch\u1ea5t \u0111\u01b0\u1ee3c ti\u1ebft ra \u0111\u00f3, \u0111\u00e3 t\u1ef1 l\u00e0m cho m\u00ecnh tr\u1edf n\u00ean \u00edt b\u1ecb \u0103n h\u01a1n b\u1edfi c\u00e1c \u0111\u1ed9ng v\u1eadt \u0103n c\u1ecf.<\/p>\n<p style=\"text-align: right;\">(Theo <em>The Epoch Times<\/em>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kh\u00f4ng h\u1ec1 h\u01b0 c\u1ea5u khi n\u00f3i r\u1eb1ng c\u00e1c c\u00e2y l\u00e0 anh ch\u1ecb em ru\u1ed9t \u2013 sinh tr\u01b0\u1edfng t\u1eeb c\u00e1c h\u1ea1t gi\u1ed1ng c\u1ee7a c\u00f9ng m\u1ed9t c\u00e2y \u2013 c\u00f3 th\u1ec3 nh\u1eadn ra nhau v\u00e0 \u0111\u1ed1i x\u1eed v\u1edbi nhau t\u1ed1t h\u01a1n l\u00e0 c\u00e1c c\u00e2y kh\u00f4ng c\u00f3 quan h\u1ec7 h\u1ecd h\u00e0ng.<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[80],"tags":[53],"class_list":["post-7850","post","type-post","status-publish","format-standard","hentry","category-khoa-hoc-khac","tag-tri-giac-nguyen-sinh"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - 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