{"id":12939,"date":"2021-05-25T15:50:33","date_gmt":"2021-05-25T18:50:33","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=12939"},"modified":"2023-01-05T14:33:42","modified_gmt":"2023-01-05T17:33:42","slug":"magnetic-revolution-venus-flytrap-action-potential","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/et\/magnetic-revolution-venus-flytrap-action-potential\/","title":{"rendered":"Magnetiline revolutsioon: Venus Flytrap Action Potential"},"content":{"rendered":"

Dionaea muscipula, tuntud ka kui Veenuse k\u00e4rbsep\u00fc\u00fcnis, on lihas\u00f6\u00f6jataim, mis p\u00fc\u00fcab oma saaki modifitseeritud lehtede abil. Toimemehhanism h\u00f5lmab lehe kiiret liikumist, kui v\u00e4ike saakloom sellega kokku puutub. See sulgub kohe hilisemaks seedimisprotsessiks. Veenuse k\u00e4rbsep\u00fc\u00fcnise lehel on puutetundlikud karvad v\u00f5i p\u00e4\u00e4stikukarvad, mis aitavad naatriumiga aktiveeritud toimepotentsiaali kaudu l\u00f5ksu j\u00e4\u00e4miseks m\u00e4rku anda.<\/p>\n\n\n\n

\"mitu<\/a>
Pildi allikas: Unsplash<\/a> poolt Dmitri Makarov<\/a>.<\/figcaption><\/figure>\n\n\n\n

Aktsioonipotentsiaal on raku signaalimise vahend, mis toimub siis, kui positiivselt laetud ioonid sisenevad rakkudesse, p\u00f5hjustades rakumembraani elektrilise keskkonna kiiret muutumist, et saavutada l\u00e4vepiir. See omakorda saadab elektrilisi signaale teisele rakule aktiivseks vastuseks. <\/p>\n\n\n\n

Signaal on nii kiire, et see p\u00fc\u00fcab saagi m\u00f5ne sekundi jooksul kinni. <\/p>\n\n\n\n

Saakloomad seeditakse ens\u00fc\u00fcmide abil, mida eraldavad lehe limaskesta n\u00e4\u00e4rmed. Tegevuse j\u00e4tkamiseks vajalikud toitained imenduvad taime poolt.<\/p>\n\n\n\n

P\u00f5hjus, vaatlus ja eksperimenteerimine:<\/strong><\/p>\n\n\n\n

Nii nagu inimese aju, mis vastutab pingemuutuste eest konkreetsetes piirkondades, mis tekivad elektrilise aktiivsusena n\u00e4rvirakkude kaudu kulgevate tegevuspotentsiaalide kujul. Neid tegevusi saab hinnata selliste tehnikate abil nagu magnetoentsefalograafia, elektroentsefalograafia ja magnetresonantstomograafia, et anal\u00fc\u00fcsida v\u00f5imalikke h\u00e4ireid ja nende diagnoosimist.<\/p>\n\n\n\n

Interdistsiplinaarsete teadlaste r\u00fchm n\u00e4itas Veenuse k\u00e4rbseseeni ainulaadset magnetilist aktiivsust koos selle elektrilise signaalimisega sarnaselt inimestele.<\/p>\n\n\n\n

Venus flytrap'i mehhanism p\u00f5hineb samuti tegevuspotentsiaalil, mille tulemuseks on elektrilised signaalid s\u00fcsteemis.<\/p>\n\n\n\n

\"Kaablipress,<\/a>
Pildi allikas: Unsplash<\/a> poolt Clint Patterson<\/a><\/figcaption><\/figure>\n\n\n\n

Venus Flytrap'i tegevuspotentsiaali v\u00f5ivad vallandada soojus, k\u00fclm, veesisaldus ja muud mehaanilised v\u00f5i keskkonnategurid. Teadlased kasutasid magnetv\u00e4lja m\u00f5\u00f5tmiseks tegevuspotentsiaali esilekutsumiseks soojust, kuna nad m\u00e4rkasid, et temperatuur m\u00f5jutab tegevuspotentsiaali amplituudi.<\/p>\n\n\n\n

Nad kasutasid aatomimagnetomeetreid, et m\u00f5\u00f5ta elektrilise aktiivsusega seotud biomagnetismi. Kasutati klaask\u00fcvett, mis oli t\u00e4idetud leelise aatomite aurudega, mis reageerisid biomagnetilise aktiivsuse muutustele.<\/p>\n\n\n\n

Magnetomeetrid vajavad m\u00f5\u00f5tmiseks magnetiliselt varjestatud keskkonda. See on ettevaatusabin\u00f5u, et lihtsalt m\u00f5\u00f5ta mitmerakelise taime magnetilist aktiivsust. See vahend on v\u00e4ga t\u00f5hus ja eelistatud \u00fclijuhtivate kvantliideseadmete magnetomeetritele (SQID), kuna neid saab miniatuurseks muuta, et saavutada optimaalne ruumiline eraldusv\u00f5ime andmete m\u00f5\u00f5tmiseks.<\/p>\n\n\n\n

Teadlased registreerisid Veenuse k\u00e4rbsep\u00fc\u00fcdja magnetilise signaali, mille amplituudiks oli umbes 0,5 pikotesla, mis on palju n\u00f5rgem kui Maa magnetv\u00e4li. <\/p>\n\n\n\n

Sellest v\u00f5ib j\u00e4reldada biomagnetilise aktiivsuse kasulikkust, mis v\u00f5iks aidata mitteinvasiivset tehnikat stressi tuvastamiseks.<\/p>\n\n\n\n

Saagi parandamine on l\u00f5ppeesm\u00e4rk, et parandada keskkonnateguritest, n\u00e4iteks temperatuurimuutustest, keemilisest toimest ja ka herbivooride v\u00f5i putukate r\u00fcnnakust tingitud m\u00f5jusid elektromagnetilise tagasiside tuvastamise abil. Kiitus meeskonnale biomagnetismi molekulaarse aluse leidmise eest taimedes.<\/p>\n\n\n\n

Et rohkem teada saada nende uuringutest, vaadake allpool toodud viidet, ja et lugeda rohkem tegevuspotentsiaali kohta, kl\u00f5psake nuppu siin<\/a>.<\/p>\n\n\n\n

Fabricant, A., Iwata, G.Z., Scherzer, S. et al.<\/em> Tegevuspotentsiaalid indutseerivad biomagnetilisi v\u00e4lju lihas\u00f6\u00f6jate Veenuse k\u00e4rbsep\u00fc\u00fcdjate taimedes. Sci Rep<\/em> 11, 1438 (2021). https:\/\/doi.org\/10.1038\/s41598-021-81114-w.<\/a><\/p>\n\n\n\n

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

Dionaea muscipula, tuntud ka kui Veenuse k\u00e4rbsep\u00fc\u00fcnis, on lihas\u00f6\u00f6jataim, mis p\u00fc\u00fcab oma saaki modifitseeritud lehtede abil. Toimemehhanism h\u00f5lmab lehe kiiret liikumist, kui v\u00e4ike saakloom sellega kokku puutub. See sulgub kohe hilisemaks seedimisprotsessiks. Veenuse k\u00e4rbsep\u00fc\u00fcdja leht koosneb puutetundlikest [...]<\/p>","protected":false},"author":18,"featured_media":12945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\nThe Magnetic Revolution: The Venus Flytrap Action Potential - MTG<\/title>\n<meta name=\"description\" content=\"A group of interdisciplinary researchers exhibited the unique magnetic activity of the Venus flytrap in association with its electrical signaling.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/et\/magnetic-revolution-venus-flytrap-action-potential\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Magnetic Revolution: The Venus Flytrap Action Potential\" \/>\n<meta property=\"og:description\" content=\"A group of interdisciplinary researchers exhibited the unique magnetic activity of the Venus flytrap in association with its electrical signaling.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/et\/magnetic-revolution-venus-flytrap-action-potential\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-25T18:50:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-05T17:33:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/post-the-magnetic-revolution-facebook.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bruna Soldera\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"The Magnetic Revolution: The Venus Flytrap Action Potential\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/post-the-magnetic-revolution-twitter.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bruna Soldera\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The Magnetic Revolution: The Venus Flytrap Action Potential - 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