{"id":4980,"date":"2026-10-23T10:22:11","date_gmt":"2026-10-23T08:22:11","guid":{"rendered":"https:\/\/www.spzo.cz\/?p=4980"},"modified":"2026-10-23T10:22:12","modified_gmt":"2026-10-23T08:22:12","slug":"z-bezneho-plevele-muze-pomoci-crispr-technologie-vzniknout-nova-plodina","status":"publish","type":"post","link":"https:\/\/www.spzo.cz\/?p=4980","title":{"rendered":"Z b\u011b\u017en\u00e9ho plevele m\u016f\u017ee pomoc\u00ed CRISPR technologie vzniknout nov\u00e1 plodina?"},"content":{"rendered":"\n
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Pen\u00edzek roln\u00ed (Thlaspi arvense<\/em>) je rostlina z \u010deledi brukvovit\u00fdch, kter\u00e1 je pova\u017eov\u00e1na za b\u011b\u017en\u011b roz\u0161\u00ed\u0159en\u00fd poln\u00ed plevel. Jedin\u00e1 rostlina m\u016f\u017ee vytvo\u0159it a\u017e 2 000 semen, co\u017e p\u0159isp\u00edv\u00e1 k jej\u00edmu snadn\u00e9mu \u0161\u00ed\u0159en\u00ed po zem\u011bd\u011blsk\u00fdch ploch\u00e1ch. \u010c\u00e1st semen nav\u00edc z\u016fst\u00e1v\u00e1 dormantn\u00ed a m\u016f\u017ee dlouhodob\u011b p\u0159e\u017e\u00edvat v p\u016fd\u011b. Pen\u00edzek nav\u00edc m\u016f\u017ee hostit \u0161k\u016fdce a p\u016fvodce chorob kulturn\u00edch plodin.<\/p>\n\n\n\n

Jeho vyu\u017eit\u00ed jako u\u017eitkov\u00e9 plodiny omezuje p\u0159edev\u0161\u00edm vysok\u00fd obsah glukosinol\u00e1t\u016f, zejm\u00e9na sinigrinu. Tyto l\u00e1tky mohou sni\u017eovat chutnost krmiva a ve v\u011bt\u0161\u00edm mno\u017estv\u00ed zp\u016fsobovat hospod\u00e1\u0159sk\u00fdm zv\u00ed\u0159at\u016fm zdravotn\u00ed probl\u00e9my. Rozdrcen\u00e9 \u010d\u00e1sti rostliny nav\u00edc uvol\u0148uj\u00ed charakteristick\u00fd \u010desnekov\u00fd z\u00e1pach, kter\u00fd m\u016f\u017ee negativn\u011b ovlivnit chu\u0165 ml\u00e9ka a masa.<\/p>\n\n\n\n

V\u011bdci proto vyu\u017eili de novo domestikaci, p\u0159i n\u00ed\u017e pomoc\u00ed c\u00edlen\u00fdch genetick\u00fdch \u00faprav m\u011bn\u00ed vybran\u00e9 vlastnosti plan\u00fdch rostlin tak, aby byly vhodn\u011bj\u0161\u00ed pro zem\u011bd\u011blsk\u00e9 vyu\u017eit\u00ed. U pen\u00edzku roln\u00edho pomoc\u00ed technologie CRISPR-Cas9 vytvo\u0159ili z mrazuvzdorn\u00e9ho a rychle rostouc\u00edho plevele perspektivn\u00ed olejnatou meziplodinu. D\u00edky t\u00e9to technologii se poda\u0159ilo sn\u00ed\u017eit obsah glukosinol\u00e1t\u016f v semenech a\u017e o 75 % a z\u00e1rove\u0148 omezit dormanci semen, a t\u00edm i riziko zaplevelen\u00ed pol\u00ed.<\/p>\n\n\n\n

Jedn\u00edm z c\u00edl\u016f editace byl tak\u00e9 gen TT8<\/em>, kter\u00fd ovliv\u0148uje vlastnosti semenn\u00e9ho obalu a dormanci. Jeho editace vedla k v\u00fdrazn\u00e9mu sn\u00ed\u017een\u00ed schopnosti semen p\u0159e\u017e\u00edvat v p\u016fd\u011b. Zat\u00edmco u plan\u00e9ho typu z\u016fst\u00e1valo po dvou letech v p\u016fd\u011b \u017eivotaschopn\u00fdch p\u0159ibli\u017en\u011b 60 % semen, u lini\u00ed s editovan\u00fdm genem TT8<\/em> nebyla po 12 m\u011bs\u00edc\u00edch nalezena \u017e\u00e1dn\u00e1 \u017eivotaschopn\u00e1 semena.<\/p>\n\n\n\n

Takto domestikovan\u00fd pen\u00edzek by mohl b\u00fdt p\u011bstov\u00e1n mezi dv\u011bma hlavn\u00edmi letn\u00edmi plodinami, co\u017e by umo\u017enilo b\u011bhem dvou let z\u00edskat a\u017e t\u0159i tr\u017en\u00ed sklizn\u011b. Z\u00e1rove\u0148 by mohl poskytovat v\u00fdhody kryc\u00edch plodin. Z b\u011b\u017en\u00e9ho plevele se tak d\u00edky c\u00edlen\u00e9 editaci genomu m\u016f\u017ee st\u00e1t nov\u00e1 zem\u011bd\u011blsky vyu\u017eiteln\u00e1 plodina.<\/p>\n\n\n\n

Zdroj: biotrin.cz<\/em><\/p>\n<\/div>\n\n\n\n

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<\/p>\n","protected":false},"excerpt":{"rendered":"

Pen\u00edzek roln\u00ed (Thlaspi arvense) je rostlina z \u010deledi brukvovit\u00fdch, kter\u00e1 je pova\u017eov\u00e1na za b\u011b\u017en\u011b roz\u0161\u00ed\u0159en\u00fd poln\u00ed plevel. Jedin\u00e1 rostlina m\u016f\u017ee vytvo\u0159it a\u017e 2 000 semen, co\u017e p\u0159isp\u00edv\u00e1 k jej\u00edmu snadn\u00e9mu \u0161\u00ed\u0159en\u00ed po zem\u011bd\u011blsk\u00fdch ploch\u00e1ch. \u010c\u00e1st semen nav\u00edc z\u016fst\u00e1v\u00e1 dormantn\u00ed a m\u016f\u017ee dlouhodob\u011b p\u0159e\u017e\u00edvat v p\u016fd\u011b. Pen\u00edzek nav\u00edc m\u016f\u017ee hostit \u0161k\u016fdce a p\u016fvodce chorob kulturn\u00edch plodin. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"1080","footnotes":""},"categories":[69,72],"tags":[],"class_list":["post-4980","post","type-post","status-publish","format-standard","hentry","category-aktualita","category-top"],"_links":{"self":[{"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/posts\/4980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4980"}],"version-history":[{"count":1,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/posts\/4980\/revisions"}],"predecessor-version":[{"id":4982,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=\/wp\/v2\/posts\/4980\/revisions\/4982"}],"wp:attachment":[{"href":"https:\/\/www.spzo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.spzo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}