{"id":118834,"date":"2023-04-18T01:09:08","date_gmt":"2023-04-18T08:09:08","guid":{"rendered":"https:\/\/www.pandasilk.com\/does-silkworm-make-cocoon\/"},"modified":"2025-01-15T10:33:53","modified_gmt":"2025-01-15T18:33:53","slug":"does-silkworm-make-cocoon","status":"publish","type":"post","link":"https:\/\/www.pandasilk.com\/cs\/does-silkworm-make-cocoon\/","title":{"rendered":"Tvo\u0159\u00ed bource moru\u0161ov\u00e9ho kokon?"},"content":{"rendered":"

Hedv\u00e1b\u00ed, luxusn\u00ed a leskl\u00fd materi\u00e1l, fascinuje lidstvo po stalet\u00ed. Jeho p\u016fvod je v\u0161ak mnohem prozai\u010dt\u011bj\u0161\u00ed, ne\u017e by se na prvn\u00ed pohled zd\u00e1lo. Zdrojem hedv\u00e1b\u00ed je toti\u017e nen\u00e1padn\u00fd tvor \u2013 bource moru\u0161ov\u00fd. A ano, bource moru\u0161ov\u00fd vytv\u00e1\u0159\u00ed kokon, kter\u00fd je z\u00e1kladn\u00edm stavebn\u00edm kamenem pro v\u00fdrobu hedv\u00e1b\u00ed. V tomto \u010dl\u00e1nku se podrobn\u011bji pod\u00edv\u00e1me na fascinuj\u00edc\u00ed proces tvorby kokonu a jeho v\u00fdznam.<\/p>\n

\u017divotn\u00ed cyklus bource moru\u0161ov\u00e9ho<\/h3>\n

Bource moru\u0161ov\u00fd (Bombyx mori) proch\u00e1z\u00ed kompletn\u00ed metamorf\u00f3zou, kter\u00e1 zahrnuje \u010dty\u0159i st\u00e1dia: vaj\u00ed\u010dko, larva, kukla a dosp\u011blec (mot\u00fdl). Kokon je kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed st\u00e1dia kukly.<\/p>\n

Tvorba kokonu<\/h3>\n
    \n
  1. P\u0159\u00edprava: Larva, kter\u00e1 se vyl\u00edhne z vaj\u00ed\u010dka, se intenzivn\u011b \u017eiv\u00ed listy moru\u0161e b\u00edl\u00e9. Po n\u011bkolika t\u00fddnech intenzivn\u00edho r\u016fstu a svl\u00e9k\u00e1n\u00ed k\u016f\u017ee je larva p\u0159ipravena k zakuklen\u00ed.<\/li>\n
  2. Produkce hedv\u00e1b\u00ed: Dv\u011b slinn\u00e9 \u017el\u00e1zy larvy produkuj\u00ed tekut\u00e9 hedv\u00e1b\u00ed, kter\u00e9 se p\u0159i kontaktu se vzduchem ztuhne do jemn\u00fdch vl\u00e1kem.<\/li>\n
  3. Stavba kokonu: Larva se obal\u00ed t\u011bmito vl\u00e1kny, vytv\u00e1\u0159ej\u00edc si ochrann\u00fd obal \u2013 kokon. Proces trv\u00e1 n\u011bkolik dn\u00ed a larva b\u011bhem n\u011bj ot\u00e1\u010d\u00ed hlavou v charakteristick\u00e9m pohybu "osmi\u010dky".<\/li>\n
  4. Kukla uvnit\u0159 kokonu: Uvnit\u0159 kokonu se larva prom\u011bn\u00ed v kuklu. V tomto st\u00e1diu doch\u00e1z\u00ed k z\u00e1sadn\u00ed p\u0159em\u011bn\u011b t\u011bla hmyzu.<\/li>\n<\/ol>\n

    Slo\u017een\u00ed kokonu<\/h3>\n

    Kokon je tvo\u0159en jedn\u00edm dlouh\u00fdm, nep\u0159eru\u0161en\u00fdm hedv\u00e1bn\u00fdm vl\u00e1knem, kter\u00e9 m\u016f\u017ee dosahovat d\u00e9lky a\u017e 900 metr\u016f. Vl\u00e1kno je tvo\u0159eno p\u0159ev\u00e1\u017en\u011b b\u00edlkovinou fibroinem a sericinem, kter\u00fd dod\u00e1v\u00e1 kokonu lesk.<\/p>\n\n\n\n\n\n\n
    Slo\u017eka<\/th>\nFunkce<\/th>\n<\/tr>\n<\/thead>\n
    Fibroin<\/td>\nPevnost a pru\u017enost vl\u00e1kna<\/td>\n<\/tr>\n
    Sericin<\/td>\nLesk a spojen\u00ed vl\u00e1ken<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Vyu\u017eit\u00ed kokonu<\/h3>\n

    Kokony bource moru\u0161ov\u00e9ho jsou z\u00e1kladn\u00edm zdrojem hedv\u00e1b\u00ed. Pro z\u00edsk\u00e1n\u00ed hedv\u00e1bn\u00e9ho vl\u00e1kna se kokony va\u0159\u00ed v hork\u00e9 vod\u011b, \u010d\u00edm\u017e se rozpust\u00ed sericin a uvoln\u00ed se hedv\u00e1bn\u00e9 vl\u00e1kno. N\u00e1sledn\u011b se vl\u00e1kna sp\u0159\u00e1daj\u00ed do hedv\u00e1bn\u00e9 p\u0159\u00edze, kter\u00e1 se d\u00e1le zpracov\u00e1v\u00e1 na tkaniny.<\/p>\n

    Druhy kokon\u016f<\/h3>\n

    Existuj\u00ed r\u016fzn\u00e9 druhy kokon\u016f bource moru\u0161ov\u00e9ho, kter\u00e9 se li\u0161\u00ed barvou a velikost\u00ed. Barva kokonu m\u016f\u017ee b\u00fdt b\u00edl\u00e1, \u017elut\u00e1, nebo dokonce i zelen\u00e1.<\/p>\n

    Z\u00e1v\u011br<\/h3>\n

    Bource moru\u0161ov\u00fd a jeho schopnost vytv\u00e1\u0159et hedv\u00e1bn\u00fd kokon jsou fascinuj\u00edc\u00edm p\u0159\u00edkladem p\u0159\u00edrodn\u00ed ingenuity. Tento mal\u00fd hmyz n\u00e1m poskytuje materi\u00e1l, kter\u00fd je cen\u011bn\u00fd pro svou kr\u00e1su a kvalitu ji\u017e po tis\u00edcilet\u00ed. Proces tvorby kokonu je slo\u017eit\u00fd a precizn\u00ed, a v\u00fdsledkem je unik\u00e1tn\u00ed p\u0159\u00edrodn\u00ed produkt, kter\u00fd nach\u00e1z\u00ed uplatn\u011bn\u00ed v mnoha oblastech lidsk\u00e9 \u010dinnosti.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Hedv\u00e1b\u00ed, luxusn\u00ed a leskl\u00fd materi\u00e1l, fascinuje lidstvo po stalet\u00ed. Jeho p\u016fvod je v\u0161ak mnohem prozai\u010dt\u011bj\u0161\u00ed, ne\u017e by se na prvn\u00ed pohled zd\u00e1lo. Zdrojem hedv\u00e1b\u00ed je toti\u017e nen\u00e1padn\u00fd tvor \u2013 bource moru\u0161ov\u00fd. A ano, bource moru\u0161ov\u00fd vytv\u00e1\u0159\u00ed kokon, kter\u00fd je z\u00e1kladn\u00edm stavebn\u00edm kamenem pro v\u00fdrobu hedv\u00e1b\u00ed. V tomto \u010dl\u00e1nku se podrobn\u011bji pod\u00edv\u00e1me na fascinuj\u00edc\u00ed proces tvorby<\/p>\n","protected":false},"author":1,"featured_media":89672,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37831],"tags":[],"class_list":["post-118834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sericulture-cs","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/118834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/comments?post=118834"}],"version-history":[{"count":0,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/118834\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media\/89672"}],"wp:attachment":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media?parent=118834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/categories?post=118834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/tags?post=118834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}