{"id":1275,"date":"2024-04-19T11:58:41","date_gmt":"2024-04-19T09:58:41","guid":{"rendered":"https:\/\/www.ibot.cas.cz\/botanika\/?p=1275"},"modified":"2024-10-24T11:45:01","modified_gmt":"2024-10-24T09:45:01","slug":"polarni-rasy-a-jejich-biotechnologicky-potencial","status":"publish","type":"post","link":"https:\/\/www.ibot.cas.cz\/botanika\/?p=1275","title":{"rendered":"Pol\u00e1rn\u00ed \u0159asy a jejich biotechnologick\u00fd potenci\u00e1l"},"content":{"rendered":"

Extr\u00e9mn\u00ed podm\u00ednky prost\u0159ed\u00ed v pol\u00e1rn\u00edch oblastech jsou v\u00fdzvou pro v\u0161echny organismy. Prim\u00e1rn\u00ed producenti, kte\u0159\u00ed z anorganick\u00fdch l\u00e1tek produkuj\u00ed prost\u0159ednictv\u00edm fotosynt\u00e9zy l\u00e1tky organick\u00e9 a tvo\u0159\u00ed z\u00e1klad potravn\u00edch s\u00edt\u00ed, mus\u00ed v pol\u00e1rn\u00edch ekosyst\u00e9mech \u010delit mnoha stresov\u00fdm faktor\u016fm. Pat\u0159\u00ed mezi n\u011b n\u00edzk\u00e9 teploty, cykly vymrz\u00e1n\u00ed a t\u00e1n\u00ed a kr\u00e1tk\u00e1 vegeta\u010dn\u00ed sez\u00f3na v pr\u016fb\u011bhu pol\u00e1rn\u00edho l\u00e9ta, kdy je dostupn\u00e9 slune\u010dn\u00ed z\u00e1\u0159en\u00ed nezbytn\u00e9 pro fotosynt\u00e9zu. P\u0159esto\u017ee i za pol\u00e1rn\u00edm kruhem najdeme pestr\u00e1 spole\u010denstva c\u00e9vnat\u00fdch rostlin, s nar\u016fstaj\u00edc\u00ed extr\u00e9mnost\u00ed prost\u0159ed\u00ed se st\u00e1vaj\u00ed v\u00fdznamn\u011bj\u0161\u00edmi hr\u00e1\u010di mechorosty, li\u0161ejn\u00edky a tak\u00e9 sinice a \u0159asy.<\/p>\n

\"Kok\u00e1ln\u00ed<\/a><\/p>\n

Kok\u00e1ln\u00ed zelen\u00e1 \u0159asa Chodatodesmus australis<\/em>. Kmen vyu\u017eit\u00fd pro experimenty byl izolov\u00e1n z jezera na antarktick\u00e9m ostrov\u011b Jamese Rosse.
\nFoto L. Nedbalov\u00e1<\/p>\n","protected":false},"excerpt":{"rendered":"

Extr\u00e9mn\u00ed podm\u00ednky prost\u0159ed\u00ed v pol\u00e1rn\u00edch oblastech jsou v\u00fdzvou pro v\u0161echny organismy. Prim\u00e1rn\u00ed producenti, kte\u0159\u00ed z anorganick\u00fdch l\u00e1tek produkuj\u00ed prost\u0159ednictv\u00edm fotosynt\u00e9zy l\u00e1tky organick\u00e9 a tvo\u0159\u00ed z\u00e1klad potravn\u00edch s\u00edt\u00ed, mus\u00ed v pol\u00e1rn\u00edch ekosyst\u00e9mech \u010delit mnoha stresov\u00fdm faktor\u016fm. Pat\u0159\u00ed mezi n\u011b n\u00edzk\u00e9 teploty, cykly vymrz\u00e1n\u00ed a t\u00e1n\u00ed a kr\u00e1tk\u00e1 vegeta\u010dn\u00ed sez\u00f3na v pr\u016fb\u011bhu pol\u00e1rn\u00edho l\u00e9ta, kdy je dostupn\u00e9 […]<\/p>\n","protected":false},"author":4,"featured_media":1277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[688],"tags":[],"class_list":["post-1275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2024-1"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/posts\/1275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1275"}],"version-history":[{"count":1,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/posts\/1275\/revisions"}],"predecessor-version":[{"id":1278,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/posts\/1275\/revisions\/1278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=\/wp\/v2\/media\/1277"}],"wp:attachment":[{"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ibot.cas.cz\/botanika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}