{"id":121946,"date":"2021-07-29T00:29:53","date_gmt":"2021-07-29T07:29:53","guid":{"rendered":"https:\/\/www.pandasilk.com\/overview-of-silk-biology\/"},"modified":"2025-01-15T10:41:03","modified_gmt":"2025-01-15T18:41:03","slug":"overview-of-silk-biology","status":"publish","type":"post","link":"https:\/\/www.pandasilk.com\/cs\/overview-of-silk-biology\/","title":{"rendered":"Biologie hedv\u00e1b\u00ed: Od genu k vl\u00e1knu"},"content":{"rendered":"

Hedv\u00e1b\u00ed, materi\u00e1l op\u0159eden\u00fd tajemstv\u00edm a luxusem, fascinuje lidstvo po tis\u00edcilet\u00ed. Jeho jemnost, lesk a pevnost jsou v\u00fdsledkem komplexn\u00edho biologick\u00e9ho procesu, kter\u00fd se odehr\u00e1v\u00e1 v t\u011ble bource moru\u0161ov\u00e9ho. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na detailn\u00ed p\u0159ehled biologie hedv\u00e1b\u00ed, od genetiky bource a\u017e po chemick\u00e9 slo\u017een\u00ed samotn\u00e9ho vl\u00e1kna.<\/p>\n

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

Bource moru\u0161ov\u00e9ho (Bombyx mori) proch\u00e1z\u00ed b\u011bhem sv\u00e9ho \u017eivota \u010dty\u0159mi st\u00e1dii: vaj\u00ed\u010dko, larva (housenka), kukla a dosp\u011blec (mot\u00fdl). Produkce hedv\u00e1b\u00ed je spojena s f\u00e1z\u00ed kukly. Housenka se p\u0159ed zakuklen\u00edm obal\u00ed vl\u00e1knem, kter\u00e9 vytv\u00e1\u0159\u00ed ve slinn\u00fdch \u017el\u00e1z\u00e1ch.<\/p>\n

Produkce hedv\u00e1bn\u00e9ho vl\u00e1kna<\/h3>\n

Hedv\u00e1bn\u00e9 vl\u00e1kno se skl\u00e1d\u00e1 ze dvou hlavn\u00edch protein\u016f: fibroinu a sericinu. Fibroin tvo\u0159\u00ed j\u00e1dro vl\u00e1kna a dod\u00e1v\u00e1 mu pevnost a pru\u017enost. Sericin obaluje fibroin a p\u016fsob\u00ed jako lepidlo, kter\u00e9 dr\u017e\u00ed vl\u00e1kna pohromad\u011b. Housenka produkuje vl\u00e1kno ve form\u011b tekutiny, kter\u00e1 na vzduchu tuhne.<\/p>\n

Chemick\u00e9 slo\u017een\u00ed hedv\u00e1b\u00ed<\/h3>\n\n\n\n\n\n\n\n
Slo\u017eka<\/th>\nProcento<\/th>\nFunkce<\/th>\n<\/tr>\n<\/thead>\n
Fibroin<\/td>\n70-80%<\/td>\nPevnost, pru\u017enost<\/td>\n<\/tr>\n
Sericin<\/td>\n20-30%<\/td>\nLepen\u00ed vl\u00e1ken, lesk<\/td>\n<\/tr>\n
Ostatn\u00ed (vosky, miner\u00e1ly)<\/td>\n<1%<\/td>\nOchrana vl\u00e1kna<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Genetika bource moru\u0161ov\u00e9ho<\/h3>\n

Genetick\u00e9 slo\u017een\u00ed bource moru\u0161ov\u00e9ho hraje kl\u00ed\u010dovou roli v kvalit\u011b a vlastnostech produkovan\u00e9ho hedv\u00e1b\u00ed. V\u011bdci se dlouhodob\u011b zab\u00fdvaj\u00ed v\u00fdzkumem gen\u016f zodpov\u011bdn\u00fdch za produkci fibroinu a sericinu s c\u00edlem zlep\u0161it vlastnosti hedv\u00e1b\u00ed, nap\u0159\u00edklad jeho pevnost, barvu nebo odolnost v\u016f\u010di \u0161k\u016fdc\u016fm.<\/p>\n

Vyu\u017eit\u00ed hedv\u00e1b\u00ed<\/h3>\n

Hedv\u00e1b\u00ed se po stalet\u00ed vyu\u017e\u00edv\u00e1 k v\u00fdrob\u011b luxusn\u00edch tkanin, ale nach\u00e1z\u00ed uplatn\u011bn\u00ed i v jin\u00fdch oblastech, nap\u0159\u00edklad v medic\u00edn\u011b (chirurgick\u00e9 nit\u011b) nebo kosmetice.<\/p>\n

Biologie hedv\u00e1b\u00ed je fascinuj\u00edc\u00edm p\u0159\u00edkladem komplexn\u00edho biologick\u00e9ho procesu, kter\u00fd vede k vzniku materi\u00e1lu s unik\u00e1tn\u00edmi vlastnostmi. Od genetiky bource moru\u0161ov\u00e9ho po chemick\u00e9 slo\u017een\u00ed samotn\u00e9ho vl\u00e1kna, ka\u017ed\u00fd aspekt p\u0159isp\u00edv\u00e1 k fin\u00e1ln\u00ed podob\u011b a kvalit\u011b hedv\u00e1b\u00ed, kter\u00e9 si lidstvo cen\u00ed po tis\u00edcilet\u00ed. Dal\u0161\u00ed v\u00fdzkum v t\u00e9to oblasti slibuje nejen zlep\u0161en\u00ed st\u00e1vaj\u00edc\u00edch vlastnost\u00ed hedv\u00e1b\u00ed, ale i objeven\u00ed nov\u00fdch aplikac\u00ed tohoto v\u00fdjime\u010dn\u00e9ho materi\u00e1lu.<\/p>\n","protected":false},"excerpt":{"rendered":"

Hedv\u00e1b\u00ed, materi\u00e1l op\u0159eden\u00fd tajemstv\u00edm a luxusem, fascinuje lidstvo po tis\u00edcilet\u00ed. Jeho jemnost, lesk a pevnost jsou v\u00fdsledkem komplexn\u00edho biologick\u00e9ho procesu, kter\u00fd se odehr\u00e1v\u00e1 v t\u011ble bource moru\u0161ov\u00e9ho. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na detailn\u00ed p\u0159ehled biologie hedv\u00e1b\u00ed, od genetiky bource a\u017e po chemick\u00e9 slo\u017een\u00ed samotn\u00e9ho vl\u00e1kna. \u017divotn\u00ed cyklus bource moru\u0161ov\u00e9ho Bource moru\u0161ov\u00e9ho (Bombyx mori) proch\u00e1z\u00ed b\u011bhem<\/p>\n","protected":false},"author":1,"featured_media":89628,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37831],"tags":[],"class_list":["post-121946","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\/121946","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=121946"}],"version-history":[{"count":0,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/121946\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media\/89628"}],"wp:attachment":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media?parent=121946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/categories?post=121946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/tags?post=121946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}