{"id":15812,"date":"2024-11-01T20:05:11","date_gmt":"2024-11-01T18:05:11","guid":{"rendered":"https:\/\/www.arnoschrauwers.nl\/weblog\/?p=15812"},"modified":"2024-11-01T20:05:11","modified_gmt":"2024-11-01T18:05:11","slug":"chloroplasten-produceren-in-hamstercellen-even-energie","status":"publish","type":"post","link":"https:\/\/www.arnoschrauwers.nl\/weblog\/01\/11\/2024\/chloroplasten-produceren-in-hamstercellen-even-energie\/","title":{"rendered":"Chloroplasten produceren in hamstercellen (even) energie"},"content":{"rendered":"
\"Chloroplasten<\/a>

De chloroplasten (paars) in hamstercellen (afb: Matsunaga Sachihiro et al. univ. van Tokio)<\/p><\/div>\n

Waarom zou je chloroplasten<\/a> (bladgroen), de energiepoducenten van plantencellen, in hamstercellen zetten. Het is mij(=as) niet erg duidelijk, maar die chloroplasten bleven tot verbazing van de onderzoekers nog zo’n twee dagen licht omzetten in chemische energie. Op weg naar de mens die niet meer hoeft te eten?
\nChloroplasten zijn fotosynthetische organellen. Veel studies hebben geprobeerd intacte chloroplasten te isoleren om hun morfologische kenmerken en fotosynthetische activiteit te analyseren. Hoewel verschillende studies ge\u00efsoleerde chloroplasten in de cellen van verschillende soorten introduceerden, zijn hun fotosynthetische activiteiten niet bevestigd.
\nDe onderzoekers onder aanvoering van Matsunaga Sachihiro<\/a> van de universiteit van Tokio isoleerden fotosynthetisch actieve chloroplasten uit de primitieve rode alg Cyanidioschyzon merolae<\/a><\/em> en implanteerden die in gekweekte hamstercellen via co-cultivatie.
\nDe ge\u00efmplanteerde chloroplasten behielden hun thylako\u00efde<\/a> structuur in intracellulaire blaasjes en werden in het cytoplasma gehouden, omringd door de mitochondri\u00ebn nabij de kern van de hamstercel. Daar bleven ze ten minste 2 dagen na de implantatie functioneren. De onderzoekers stellen dat hun benadering kan dienen als een basis voor het cre\u00ebren van kunstmatig fotosynthetische dierlijke cellen.
\nSachihiro: “Voor zover wij weten is dit de eerste keer dat er fotosynthetisch elektronentransport is gedetecteerd in chloroplasten in dierlijke cellen. We hadden gedacht dat die binnen uren zouden worden verorberd door de dierlijke cellen.” Dat gebeurde (dus) niet.<\/p>\n

Weefselkweek<\/h2>\n

Ze denken dan aan weefselherstel. Sachihiro: “Weefsels zoals orgaantjes, gekweekt vlees en huid die worden gekweekt bestaan uit diverse lagen, maar het probleem is dat ze niet kunnen groeien door hypoxie (gebrek aan zuurstof; as) in het weefsel waardoor cellen niet delen. Door cellen met chloroplasten te mengen worden die een zuurstofbron voor buurcellen, waardoor die kunnen groeien.” De chloroplastcellen groeien zelf ook sneller.
\nDe onderzoekers zien ook een bijdrage aan de ‘vergroening’ van de samenleving voor de plantiercellen. Hoe is (mij=as) nog niet duidelijk.<\/p>\n

Bron: phys.org<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Onderzoekers hebben chloroplasten (bladgroenkorrels) in hamstercellen ge\u00efmplanteerd die daar zo’n twee dagen bleven functioneren. Lees verder →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114,37],"tags":[3090,1547,527,10216,6089],"class_list":["post-15812","post","type-post","status-publish","format-standard","hentry","category-biologie","category-synthetische-biologie","tag-bladgroen","tag-chloroplasten","tag-fotosynthese","tag-hamstercellen","tag-weefselkweek"],"yoast_head":"\nChloroplasten produceren in hamstercellen (even) energie - Geleerd uitschot<\/title>\n<meta name=\"description\" content=\"Onderzoekers hebben chloroplasten (bladgroenkorrels) in hamstercellen ge\u00efmplanteerd die daar zo'n twee dagen bleven functioneren.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.arnoschrauwers.nl\/weblog\/01\/11\/2024\/chloroplasten-produceren-in-hamstercellen-even-energie\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chloroplasten produceren in hamstercellen (even) energie - 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