{"id":49537,"date":"2017-07-19T00:00:00","date_gmt":"2017-07-19T00:00:00","guid":{"rendered":"https:\/\/www.cpr.cuhk.edu.hk\/press\/cuhk-scientists-use-tiny-marine-bacteria-to-trace-earths-history\/"},"modified":"2017-07-19T00:00:00","modified_gmt":"2017-07-19T00:00:00","slug":"cuhk-scientists-use-tiny-marine-bacteria-to-trace-earths-history","status":"publish","type":"press","link":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/press\/cuhk-scientists-use-tiny-marine-bacteria-to-trace-earths-history\/","title":{"rendered":"\u4e2d\u5927\u5b78\u8005\u5f9e\u8d85\u5fae\u578b\u6d77\u6d0b\u7d30\u83cc\u8ffd\u6eaf\u5730\u7403\u6f14\u5316\u6b77\u53f2"},"content":{"rendered":"","protected":false},"featured_media":0,"template":"","tags":[],"class_list":["post-49537","press","type-press","status-publish","hentry"],"acf":{"title_alt":"","sub_title_alt":"","press_date":"20170719","keep":false,"details":"<p>\u9999\u6e2f\u4e2d\u6587\u5927\u5b78\uff08\u4e2d\u5927\uff09\u751f\u547d\u79d1\u5b78\u5b78\u9662<strong>\u7f85\u6d77\u5049\u6559\u6388<\/strong>\u53ca\u5176\u7814\u7a76\u5718\u968a\uff0c\u5c0d\u539f\u7da0\u7403\u85fb\uff08<em>Prochlorococcus<\/em>\uff09\u7b49\u5e7e\u985e\u8d85\u5fae\u578b\u6d77\u6d0b\u7d30\u83cc\u4ee5\u8d85\u7d1a\u96fb\u8166\u9032\u884c\u57fa\u56e0\u7d44\u5206\u6790\uff0c\u767c\u73fe\u5b83\u5011\u5728\u65e9\u671f\u7684\u9032\u5316\u904e\u7a0b\u4e2d\u66fe\u5728\u77ed\u6642\u9593\u5167\u4e1f\u5931\u4e86\u5927\u91cfDNA\u5206\u5b50\uff0c\u4e26\u5f88\u53ef\u80fd\u662f\u7531\u65bc\u5730\u7403\u7576\u6642\u767c\u751f\u4e86\u7a81\u8b8a\uff08\u4f8b\u5982\u6c23\u5019\u6025\u5287\u8b8a\u5316\uff09\uff0c\u4f7f\u539f\u7da0\u7403\u85fb\u6e1b\u7de9\u751a\u81f3\u505c\u6b62\u751f\u9577\u3002<strong>\u6d77\u6d0b\u5fae\u751f\u7269\u5b78\u5bb6\u666e\u904d\u8a8d\u70ba\u8d85\u5fae\u578b\u6d77\u6d0b\u7d30\u83cc\u7684\u6f14\u5316\u662f\u9054\u723e\u6587\u751f\u7269\u9032\u5316\u8ad6\u7684\u91cd\u8981\u8b49\u64da\uff0c\u7f85\u6559\u6388\u7684\u767c\u73fe\u63a8\u7ffb\u4e86\u6b64\u8aaa\u3002\u7814\u7a76\u6210\u679c\u5df2\u520a\u767b\u5728\u6700\u65b0\u4e00\u671f\u7684\u300a\u81ea\u7136\u5fae\u751f\u7269\u5b78\u300b\uff08<\/strong><strong><em>Nature Microbiology<\/em><\/strong><strong>\uff09\u3002\u6b64\u9805\u7814\u7a76\u6d89\u53ca\u8de8\u5b78\u79d1\u77e5\u8b58\uff0c\u5305\u62ec\u5fae\u751f\u7269\u5b78\u3001\u9032\u5316\u751f\u7269\u5b78\u3001\u6d77\u6d0b\u79d1\u5b78\u53ca\u96fb\u8166\u79d1\u5b78\u3002<\/strong>&nbsp;<\/p><p>\u4e00\u6ef4\u6d77\u6c34\u860a\u85cf\u8457\u6578\u4ee5\u767e\u842c\u500b\u7d30\u83cc\uff0c\u5b83\u5011\u5927\u90e8\u5206\u53ea\u67090.5\u5fae\u7c73\u5de6\u53f3\u5927\u5c0f\uff0c\u88ab\u7a31\u70ba\u8d85\u5fae\u578b\u6d6e\u6e38\u7d30\u83cc\u3002\u5b83\u5011\u4e0d\u4f46\u6c92\u6709\u5371\u5bb3\u4eba\u985e\u548c\u5927\u578b\u6d77\u6d0b\u751f\u7269\u7684\u5065\u5eb7\uff0c\u66f4\u662f\u7dad\u6301\u5730\u7403\u5143\u7d20\u5faa\u74b0\u5e73\u8861\u548c\u8abf\u7bc0\u6c23\u5019\u8b8a\u5316\u7684\u91cd\u8981\u5e55\u5f8c\u529f\u81e3\u3002\u5730\u7403\u4e0a\uff08\u5305\u62ec\u6d77\u6d0b\u548c\u9678\u5730\uff0920%\u7684\u8449\u7da0\u7d20\u90fd\u662f\u7531\u539f\u7da0\u7403\u85fb\u5408\u6210\uff0c\u800c\u8449\u7da0\u7d20\u662f\u5149\u5408\u4f5c\u7528\u7684\u5fc5\u8981\u7269\u8cea\uff0c\u4ee5\u7522\u751f\u6c27\u6c23\u3002\u56e0\u6b64\u6211\u5011\u547c\u5438\u7684\u6c27\u6c23\uff0c\u5f88\u5927\u90e8\u5206\u6b78\u529f\u65bc\u9019\u985e\u8d85\u5fae\u578b\u6d77\u6d0b\u7d30\u83cc\u3002<strong>\u4e86\u89e3\u539f\u7da0\u7403\u85fb\u7684\u9032\u5316\u53f2\u5c0d\u7814\u7a76\u6d77\u6d0b\u74b0\u5883\u7684\u9069\u61c9\u6a5f\u5236\uff0c\u4ee5\u81f3\u751f\u7269\u53ca\u5730\u7403\u7684\u6f14\u5316\u6b77\u53f2\uff0c\u7686\u5177\u6709\u91cd\u5927\u610f\u7fa9\u3002<\/strong>&nbsp;<\/p><p>\u81ea\u7136\u9078\u64c7\uff08natural selection\uff09\u662f\u9054\u723e\u6587\u63d0\u51fa\u7684\u751f\u7269\u9032\u5316\u8ad6\u4e4b\u4e3b\u8981\u6a5f\u5236\uff0c\u6307\u751f\u7269\u7684\u907a\u50b3\u7279\u5fb5\u6703\u5728\u7af6\u722d\u4e2d\u88ab\u4fdd\u5b58\u6216\u6dd8\u6c70\uff0c\u4ee5\u89e3\u91cb\u751f\u7269\u5982\u4f55\u9069\u61c9\u74b0\u5883\u3002\u6d77\u6c34\u662f\u4e00\u7a2e\u6975\u5176\u7a00\u91cb\u7684\u751f\u614b\u74b0\u5883\uff0c\u71df\u990a\u6975\u5ea6\u5331\u4e4f\uff0c\u56e0\u6b64\u751f\u6d3b\u5728\u6d77\u6d0b\u4e2d\u7684\u6d6e\u6e38\u7d30\u83cc\u9577\u671f\u8655\u65bc\u9951\u9913\u72c0\u614b\u3002\u5b83\u5011\u901a\u904e\u9577\u671f\u7684\u6f14\u5316\uff0c\u6703\u5927\u91cf\u4e1f\u5931DNA\u5206\u5b50\u4ee5\u7e2e\u5c0f\u7d30\u80de\u9ad4\u7a4d\uff0c\u5f9e\u800c\u589e\u5927\u6bd4\u8868\u9762\u7a4d\uff08\u4ee5\u55ae\u4f4d\u8a08\u7684\u7e3d\u8868\u9762\u7a4d\uff09\u4ee5\u66f4\u6709\u6548\u5730\u5f9e\u6d77\u6c34\u4e2d\u5438\u6536\u71df\u990a\u3002\u56e0\u6b64\uff0c\u79d1\u5b78\u5bb6\u666e\u904d\u8a8d\u70ba\u5e36\u6709\u5c0f\u578b\u57fa\u56e0\u7d44\u7684\u8d85\u5fae\u578b\u6d77\u6d0b\u7d30\u83cc\u662f\u5728\u71df\u990a\u5331\u4e4f\u7684\u6d77\u6d0b\u74b0\u5883\u4e2d\u81ea\u7136\u9078\u64c7\u5f8c\u7684\u7d50\u679c\uff0c\u6210\u70ba\u9054\u723e\u6587\u751f\u7269\u9032\u5316\u8ad6\u7684\u91cd\u8981\u8b49\u64da\u3002&nbsp;<\/p><p><strong>\u7f85\u6d77\u5049\u6559\u6388<\/strong>\u806f\u540c\u5176\u535a\u58eb\u5f8c\u7814\u7a76\u54e1<strong>\u9ec3\u8a60\u6f54\u535a\u58eb<\/strong>\u3001\u7f8e\u570bBigelow\u6d77\u6d0b\u7814\u7a76\u6240<strong>Ramunas Stepanauskas<\/strong><strong>\u6559\u6388<\/strong>\uff0c\u4ee5\u53ca\u7f8e\u570b\u5357\u5361\u7f85\u4f86\u7d0d\u5927\u5b78<strong>\u5510\u7e7c\u8ecd\u6559\u6388<\/strong>\uff0c<strong>\u5229\u7528\u8d85\u7d1a\u8a08\u7b97\u6a5f\u5206\u6790\u4e86\u8fd1<\/strong><strong>100<\/strong><strong>\u500b\u539f\u7da0\u7403\u85fb\u57fa\u56e0\u7d44<\/strong><strong>DNA<\/strong><strong>\u5e8f\u5217<\/strong>\uff0c\u901a\u904e\u91cd\u69cb\u5b83\u5011\u7684\u9032\u5316\u53f2\u4e26\u8a08\u7b97\u4e0d\u540c\u985e\u578b\u57fa\u56e0\u7a81\u8b8a\u7684\u7d2f\u7a4d\u901f\u5ea6\uff0c\u767c\u73fe\u9019\u4e9b\u770b\u4f3c\u5e7e\u4e4e\u5b8c\u7f8e\u9032\u5316\u7684\u8d85\u5fae\u578b\u7d30\u83cc\uff0c\u539f\u4f86\u7d2f\u7a4d\u4e86\u5927\u91cf\u6709\u5bb3\u7684\u57fa\u56e0\u7a81\u8b8a\u3002\u7814\u7a76\u66f4\u767c\u73fe\uff0c\u9019\u4e9b\u6709\u5bb3\u7a81\u8b8a\u767c\u751f\u7684\u6642\u9593\u548cDNA\u5206\u5b50\u5927\u91cf\u4e1f\u5931\u7684\u6642\u9593\u543b\u5408\u2500\u2500\u90fd\u767c\u751f\u5728\u539f\u7da0\u7403\u85fb\u65e9\u671f\u7684\u9032\u5316\u53f2\u4e2d\u3002&nbsp;<\/p><p>\u6839\u64da\u73fe\u4ee3\u5206\u5b50\u9032\u5316\u7406\u8ad6\uff0c\u7f85\u6559\u6388\u7684\u767c\u73fe\u8aaa\u660e\u539f\u7da0\u7403\u85fb\u4e1f\u5931\u5927\u91cfDNA\u5206\u5b50\u4e26\u975e\u70ba\u4e86\u9069\u61c9\u6d77\u6d0b\u74b0\u5883\uff0c\u76f8\u53cd\uff0c\u9019\u662f\u4e00\u500b\u96a8\u6a5f\u7684\u904e\u7a0b\u3002<strong>\u7f85\u6d77\u5049\u6559\u6388<\/strong>\u8868\u793a\uff1a\u300c<strong>\u9019\u662f\u79d1\u5b78\u754c\u9996\u6b21\u767c\u73fe\u539f\u7da0\u7403\u85fb\u4e26\u975e\u5b8c\u7f8e\u9032\u5316\u7684\u8b49\u64da<\/strong>\u3002\u6211\u5011\u4f30\u8a08\u539f\u7da0\u7403\u85fb\u5728\u65e9\u671f\u9032\u5316\u6642\uff0c\u5730\u7403\u767c\u751f\u4e86\u91cd\u5927\u7684\u8b8a\u5316\uff0c\u53ef\u80fd\u662f\u6c23\u5019\u5287\u8b8a\uff0c\u4ee4\u539f\u7da0\u7403\u85fb\u7fa4\u5927\u898f\u6a21\u7e2e\u5c0f\uff0c\u4ee4\u81ea\u7136\u9078\u64c7\u6a5f\u5236\u5931\u6548\u800c\u7a4d\u7d2f\u4e86\u6709\u5bb3\u7684\u57fa\u56e0\u7a81\u8b8a\u3002\u76ee\u524d\uff0c\u6211\u8207\u7814\u7a76\u5718\u968a\u6b63\u81f4\u529b\u901a\u904e\u8d85\u7d1a\u8a08\u7b97\u6a5f\u91cd\u69cb\u57fa\u56e0\u7d44\u8b8a\u5316\u7684\u5e74\u4ee3\u548c\u7d30\u7bc0\uff0c\u6709\u671b\u8207\u5730\u8cea\u5b78\u5bb6\u6240\u4e86\u89e3\u7684\u5730\u7403\u6f14\u5316\u4e8b\u4ef6\u806f\u7e6b\u8d77\u4f86\u3002\u300d&nbsp;<\/p><p><strong>\u7f85\u6559\u6388\u53ca\u5176\u5718\u968a\u66f4\u7814\u767c\u4e86\u4e00\u5957\u57fa\u56e0\u5e8f\u5217\u5206\u6790\u8edf\u4ef6<\/strong>\uff0c\u7528\u4ee5\u6e2c\u5b9a\u4e0d\u540c\u985e\u578b\u57fa\u56e0\u7a81\u8b8a\u7684\u901f\u7387\u3002\u8a72\u8edf\u4ef6\u4e0d\u4f46\u80fd\u5206\u6790\u6d77\u6d0b\u7d30\u83cc\u7684\u57fa\u56e0\u5e8f\u5217\uff0c\u66f4\u53ef\u5ee3\u6cdb\u61c9\u7528\u65bc\u5176\u5b83\u5404\u7a2e\u74b0\u5883\u4e2d\u7684\u5fae\u578b\u548c\u5927\u578b\u751f\u7269\uff0c<strong>\u73fe\u5df2\u958b\u653e\u4e88\u5168\u7403\u79d1\u5b78\u5bb6\u4f7f\u7528\u3002<\/strong>&nbsp;<\/p><p>\u6b64\u7814\u7a76\u9805\u76ee\u7372\u7814\u7a76\u8cc7\u52a9\u5c40\u5091\u51fa\u9752\u5e74\u5b78\u8005\u8a08\u5283\u53ca\u4e2d\u5927\u76f4\u63a5\u8cc7\u52a9\u8a08\u5283\u8cc7\u52a9\uff0c\u4e26\u7531\u4e2d\u5927\u674e\u798f\u5584\u6d77\u6d0b\u79d1\u5b78\u7814\u7a76\u4e2d\u5fc3\u3001\u8fb2\u696d\u751f\u7269\u6280\u8853\u570b\u5bb6\u91cd\u9ede\u5be6\u9a57\u5ba4\uff08\u9999\u6e2f\u4e2d\u6587\u5927\u5b78\u5925\u4f34\u5be6\u9a57\u5ba4\uff09\uff0c\u4ee5\u53ca\u4e2d\u5927\u74b0\u5883\u3001\u80fd\u6e90\u53ca\u53ef\u6301\u7e8c\u767c\u5c55\u7814\u7a76\u6240\u5408\u529b\u652f\u6301\u4e0b\u5b8c\u6210\u3002<strong>&nbsp;<\/strong><\/p><p><strong><strong>\u7f85\u6d77\u5049<\/strong>\u6559\u6388\u7c21\u6b77<\/strong><strong>&nbsp;<\/strong><\/p><p><strong>\u7f85\u6d77\u5049<\/strong>\u6559\u6388\u65bc2004\u5e74\u7372\u5ec8\u9580\u5927\u5b78\u74b0\u5883\u79d1\u5b78\u5b78\u58eb\u5b78\u4f4d\uff0c\u4e26\u65bc2010\u5e74\u7372\u7f8e\u570b\u5357\u5361\u7f85\u4f86\u7d0d\u5927\u5b78\u5206\u5b50\u9032\u5316\u751f\u7269\u5b78\u548c\u751f\u7269\u4fe1\u606f\u5b78\u535a\u58eb\u5b78\u4f4d\uff0c\u540c\u5e74\u524d\u5f80\u7f8e\u570b\u55ac\u6cbb\u4e9e\u5927\u5b78\u6d77\u6d0b\u5b78\u7cfb\u5f9e\u4e8b\u535a\u58eb\u5f8c\u7814\u7a76\u3002\u7f85\u6559\u6388\u65bc2015\u5e74\u52a0\u76df\u9999\u6e2f\u4e2d\u6587\u5927\u5b78\u751f\u547d\u79d1\u5b78\u5b78\u9662\u64d4\u4efb\u52a9\u7406\u6559\u6388\uff0c\u4ed6\u7684\u4e3b\u8981\u7814\u7a76\u8208\u8da3\u662f\u7d50\u5408\u73fe\u4ee3\u751f\u7269\u6280\u8853\uff08\u5982\u57fa\u56e0\u7d44\u5b78\uff09\u548c\u8d85\u7d1a\u8a08\u7b97\u6280\u8853\u4ee5\u4e86\u89e3\u5fae\u751f\u7269\u5728\u6d77\u6d0b\u4e2d\u7684\u9032\u5316\u548c\u9069\u61c9\u6027\u3002\u4ed6\u7684\u7814\u7a76\u5c0d\u6c23\u5019\u8207\u5730\u7403\u8b8a\u5316\uff0c\u6c61\u67d3\u7269\u5c0d\u6d77\u6d0b\u751f\u614b\u7cfb\u7d71\u7684\u5f71\u97ff\uff0c\u4ee5\u53ca\u6d77\u6d0b\u5927\u578b\u52d5\u7269\u548c\u690d\u7269\u7684\u4fdd\u80b2\u5177\u6709\u91cd\u8981\u610f\u7fa9\u3002\u5f9e2015\u5e74\u8d77\uff0c\u7f85\u6559\u6388\u9818\u5c0e\u7684\u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Microbiology<\/em>\uff0c<em>The ISME Journal<\/em>\uff0c<em>Molecular Biology and 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