{"id":2468,"date":"2023-07-09T18:29:54","date_gmt":"2023-07-09T18:29:54","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2468"},"modified":"2023-07-09T18:29:54","modified_gmt":"2023-07-09T18:29:54","slug":"ancient-trees-complex-anatomy-unusual-growth-patterns","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/paleobotany\/ancient-trees-complex-anatomy-unusual-growth-patterns\/","title":{"rendered":"C\u00e2y c\u1ed5 \u0111\u1ea1i: C\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p v\u00e0 ki\u1ec3u ph\u00e1t tri\u1ec3n kh\u00e1c th\u01b0\u1eddng"},"content":{"rendered":"

C\u00e2y c\u1ed5 \u0111\u1ea1i: C\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p v\u00e0 ki\u1ec3u ph\u00e1t tri\u1ec3n kh\u00e1c th\u01b0\u1eddng<\/h2>\n\n

Ph\u00e1t hi\u1ec7n ra c\u00e1c c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p trong c\u00e2y h\u00f3a th\u1ea1ch<\/h2>\n\n

Ph\u00e2n t\u00edch h\u00f3a th\u1ea1ch mang t\u00ednh \u0111\u1ed9t ph\u00e1 \u0111\u00e3 ti\u1ebft l\u1ed9 r\u1eb1ng, nh\u1eefng c\u00e2y c\u1ed5 \u0111\u1ea1i, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e2y Cladoxylopsida, s\u1edf h\u1eefu c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u so v\u1edbi nh\u1eefng lo\u00e0i c\u00e2y hi\u1ec7n \u0111\u1ea1i. M\u1eb7t c\u1eaft ngang c\u1ee7a nh\u1eefng th\u00e2n c\u00e2y 374 tri\u1ec7u n\u0103m tu\u1ed5i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u1edf Trung Qu\u1ed1c cho th\u1ea5y m\u1ed9t m\u1ea1ng l\u01b0\u1edbi li\u00ean k\u1ebft c\u1ee7a c\u00e1c s\u1ee3i g\u1ed7, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ea1ch g\u1ed7, th\u00e1ch th\u1ee9c c\u1ea5u tr\u00fac v\u00f2ng tr\u00f2n \u0111\u1ed3ng t\u00e2m \u0111\u01a1n gi\u1ea3n th\u1ea5y \u1edf c\u00e2y ng\u00e0y nay.<\/p>\n\n

M\u1ea1ch g\u1ed7 ph\u00e2n t\u00e1n v\u00e0 th\u00e2n r\u1ed7ng<\/h2>\n\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 nh\u1eefng c\u00e2y hi\u1ec7n \u0111\u1ea1i, th\u01b0\u1eddng t\u1ea1o th\u00e0nh m\u1ed9t h\u00ecnh tr\u1ee5 m\u1ea1ch g\u1ed7 duy nh\u1ea5t, c\u00e2y Cladoxylopsida c\u00f3 m\u1ea1ch g\u1ed7 ph\u00e2n b\u1ed1 tr\u00ean to\u00e0n b\u1ed9 n\u0103m cm ngo\u00e0i c\u00f9ng c\u1ee7a th\u00e2n c\u00e2y. \u0110\u00e1ng ch\u00fa \u00fd, ph\u1ea7n gi\u1eefa c\u1ee7a th\u00e2n c\u00e2y r\u1ed7ng, cho th\u1ea5y m\u1ed9t s\u1ef1 th\u00edch nghi \u0111\u1ed9c \u0111\u00e1o \u0111\u1ec3 h\u1ed7 tr\u1ee3 ki\u1ec3u ph\u00e1t tri\u1ec3n ph\u1ee9c t\u1ea1p c\u1ee7a ch\u00fang.<\/p>\n\n

M\u1ea1ng l\u01b0\u1edbi m\u1ea1ch g\u1ed7 t\u1ef1 s\u1eeda ch\u1eefa v\u00e0 c\u00e1c v\u00f2ng tr\u00f2n \u0111\u1ed3ng t\u00e2m<\/h2>\n\n

M\u1ed7i s\u1ee3i m\u1ea1ch g\u1ed7 trong c\u00e2y Cladoxylopsida \u0111\u1ec1u bi\u1ec3u hi\u1ec7n m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c v\u00f2ng tr\u00f2n \u0111\u1ed3ng t\u00e2m ri\u00eang, gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ed9 s\u01b0u t\u1eadp nh\u1eefng c\u00e2y thu nh\u1ecf. Khi c\u00e2y ph\u00e1t tri\u1ec3n, m\u00f4 m\u1ec1m trong th\u00e2n c\u00e2y s\u1ebd t\u00e1ch c\u00e1c s\u1ee3i ra. \u0110i\u1ec1u th\u00fa v\u1ecb l\u00e0, c\u00e1c s\u1ee3i \u0111\u00f4i khi t\u00e1ch ra theo c\u00e1ch c\u00f3 ki\u1ec3m so\u00e1t \u0111\u1ec3 th\u00edch \u1ee9ng v\u1edbi s\u1ef1 m\u1edf r\u1ed9ng, nh\u01b0ng c\u00e1c cu\u1ed9c ki\u1ec3m tra h\u00f3a th\u1ea1ch sau \u0111\u00f3 \u0111\u00e3 ti\u1ebft l\u1ed9 r\u1eb1ng c\u00e1c m\u1ea1ng l\u01b0\u1edbi sau \u0111\u00f3 s\u1ebd t\u1ef1 s\u1eeda ch\u1eefa.<\/p>\n\n

Ki\u1ec3u sinh tr\u01b0\u1edfng v\u00e0 th\u00edch nghi<\/h2>\n\n

Ki\u1ec3u ph\u00e1t tri\u1ec3n kh\u00e1c th\u01b0\u1eddng n\u00e0y, khi c\u00e2y \u0111\u1ed3ng th\u1eddi x\u00e9 to\u1ea1c b\u1ed9 khung x\u01b0\u01a1ng c\u1ee7a ch\u00ednh m\u00ecnh v\u00e0 s\u1ee5p \u0111\u1ed5 d\u01b0\u1edbi s\u1ee9c n\u1eb7ng c\u1ee7a ch\u00ednh m\u00ecnh trong khi v\u1eabn ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u00e0 ph\u00e1t tri\u1ec3n m\u1ea1nh, \u0111\u00e3 khi\u1ebfn c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u b\u1ed1i r\u1ed1i. M\u1eb7c d\u00f9 ch\u1ee9c n\u0103ng ch\u00ednh x\u00e1c c\u1ee7a c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu ph\u1ee9c t\u1ea1p n\u00e0y v\u1eabn c\u00f2n kh\u00f3 n\u1eafm b\u1eaft, nh\u01b0ng c\u00e1c nh\u00e0 khoa h\u1ecdc suy \u0111o\u00e1n r\u1eb1ng n\u00f3 c\u00f3 th\u1ec3 \u0111\u00e3 cung c\u1ea5p h\u1ed7 tr\u1ee3 v\u1ec1 m\u1eb7t c\u1ea5u tr\u00fac v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i trong \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t th\u1eddi b\u1ea5y gi\u1edd.<\/p>\n\n

S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu c\u00e2y<\/h2>\n\n

Nghi\u00ean c\u1ee9u h\u00f3a th\u1ea1ch c\u00e2y c\u1ed5 \u0111\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e2y Cladoxylopsida, cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu c\u00e2y. B\u1eb1ng c\u00e1ch so s\u00e1nh c\u00e1c ki\u1ec3u ph\u00e1t tri\u1ec3n v\u00e0 s\u1ef1 th\u00edch nghi c\u1ee7a c\u00e2y c\u1ed5 \u0111\u1ea1i v\u00e0 c\u00e2y hi\u1ec7n \u0111\u1ea1i, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch c\u00e2y \u0111\u00e3 ti\u1ebfn h\u00f3a trong h\u00e0ng tri\u1ec7u n\u0103m \u0111\u1ec3 th\u00edch nghi v\u1edbi nh\u1eefng thay \u0111\u1ed5i c\u1ee7a \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n

Nghi\u00ean c\u1ee9u \u0111ang di\u1ec5n ra v\u00e0 nh\u1eefng kh\u00e1m ph\u00e1 trong t\u01b0\u01a1ng lai<\/h2>\n\n

Ti\u1ebfn s\u0129 Chris Berry, nh\u00e0 c\u1ed5 th\u1ef1c v\u1eadt h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Cardiff, c\u00f3 k\u1ebf ho\u1ea1ch ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u nh\u1eefng h\u00f3a th\u1ea1ch c\u00e2y c\u1ed5 \u0111\u1ea1i n\u00e0y \u0111\u1ec3 gi\u1ea3i m\u00e3 nh\u1eefng b\u00ed \u1ea9n xung quanh ki\u1ec3u ph\u00e1t tri\u1ec3n kh\u00e1c th\u01b0\u1eddng c\u1ee7a ch\u00fang. B\u1eb1ng c\u00e1ch ki\u1ec3m tra k\u1ef9 h\u01a1n c\u00e1c m\u1eabu r\u1ec5 v\u00e0 v\u00f2ng m\u1ea1ch g\u1ed7, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hy v\u1ecdng s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n v\u1ec1 ch\u1ee9c n\u0103ng v\u00e0 \u00fd ngh\u0129a c\u1ee7a nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m gi\u1ea3i ph\u1eabu ph\u1ee9c t\u1ea1p n\u00e0y.<\/p>\n\n

K\u1ebft lu\u1eadn<\/h2>\n\n

Kh\u00e1m ph\u00e1 ra nh\u1eefng c\u00e2y c\u1ed5 \u0111\u1ea1i v\u1edbi c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu ph\u1ee9c t\u1ea1p th\u00e1ch th\u1ee9c s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 th\u00edch nghi c\u1ee7a c\u00e2y. C\u00e1c m\u1ea1ng l\u01b0\u1edbi m\u1ea1ch g\u1ed7 li\u00ean k\u1ebft, c\u01a1 ch\u1ebf t\u1ef1 s\u1eeda ch\u1eefa v\u00e0 th\u00e2n r\u1ed7ng c\u1ee7a c\u00e2y Cladoxylopsida cung c\u1ea5p nh\u1eefng c\u00e1i nh\u00ecn h\u1ea5p d\u1eabn v\u1ec1 s\u1ef1 \u0111a d\u1ea1ng \u0111\u00e1ng kinh ng\u1ea1c c\u1ee7a s\u1ef1 s\u1ed1ng th\u1ef1c v\u1eadt th\u1eddi k\u1ef3 \u0111\u1ea7u v\u00e0 nh\u1eefng s\u1ef1 th\u00edch nghi phi th\u01b0\u1eddng \u0111\u00e3 \u0111\u1ecbnh h\u00ecnh n\u00ean qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a c\u00e2y trong h\u00e0ng tr\u0103m tri\u1ec7u n\u0103m. C\u00e1c nghi\u00ean c\u1ee9u \u0111ang di\u1ec5n ra h\u1ee9a h\u1eb9n s\u1ebd l\u00e0m s\u00e1ng t\u1ecf th\u00eam v\u1ec1 nh\u1eefng ng\u01b0\u1eddi kh\u1ed5ng l\u1ed3 c\u1ed5 \u0111\u1ea1i b\u00ed \u1ea9n n\u00e0y v\u00e0 nh\u1eefng \u0111\u00f3ng g\u00f3p c\u1ee7a ch\u00fang v\u00e0o l\u1ecbch s\u1eed s\u1ef1 s\u1ed1ng tr\u00ean Tr\u00e1i \u0111\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"

C\u00e2y c\u1ed5 \u0111\u1ea1i: C\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p v\u00e0 ki\u1ec3u ph\u00e1t tri\u1ec3n kh\u00e1c th\u01b0\u1eddng Ph\u00e1t hi\u1ec7n ra c\u00e1c c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p trong c\u00e2y h\u00f3a th\u1ea1ch Ph\u00e2n t\u00edch h\u00f3a th\u1ea1ch mang…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5012],"tags":[5008,5006,5009,5007,5010,4009,5011],"class_list":["post-2468","post","type-post","status-publish","format-standard","hentry","category-paleobotany","tag-unusual-growth-patterns","tag-ancient-trees","tag-cladophylopsids","tag-complex-anatomy","tag-xylem","tag-fossil-analysis","tag-evolution-of-trees"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=2468"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2468\/revisions"}],"predecessor-version":[{"id":2469,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2468\/revisions\/2469"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=2468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=2468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=2468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}