{"id":8515,"date":"2024-08-14T15:29:52","date_gmt":"2024-08-14T15:29:52","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8515"},"modified":"2024-08-14T15:29:52","modified_gmt":"2024-08-14T15:29:52","slug":"natural-sources","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/termeszetes-forrasok\/","title":{"rendered":"A term\u00e9szetes forr\u00e1sokb\u00f3l sz\u00e1rmaz\u00f3 peszticidek akt\u00edv aminosavainak kutat\u00e1s\u00e1ban el\u00e9rt eredm\u00e9nyek"},"content":{"rendered":"<p>A term\u00e9szetes forr\u00e1sokb\u00f3l sz\u00e1rmaz\u00f3 peszticidek akt\u00edv aminosavainak kutat\u00e1s\u00e1ban el\u00e9rt eredm\u00e9nyek<br \/>\nA term\u00e9szetes term\u00e9kek mindig is fontos forr\u00e1sa voltak a gy\u00f3gyszereknek \u00e9s a gy\u00f3gyszer-vezet\u0151 vegy\u00fcleteknek. A 2014-es glob\u00e1lis n\u00f6v\u00e9nyv\u00e9d\u0151szer-\u00e9rt\u00e9kes\u00edt\u00e9si statisztik\u00e1k szerint a term\u00e9szetes term\u00e9k alap\u00fa n\u00f6v\u00e9nyv\u00e9d\u0151 szerek az elm\u00falt 60 \u00e9vben a teljes \u00e9rt\u00e9kes\u00edt\u00e9s mintegy 21%-nyi r\u00e9sz\u00e9t tett\u00e9k ki. Ha a term\u00e9szetes term\u00e9kek alapj\u00e1n kifejlesztett peszticideket is belesz\u00e1m\u00edtjuk, akkor ez az ar\u00e1ny el\u00e9ri az 53%-t, \u00e9s egyes kutat\u00f3k szerint ez az ar\u00e1ny ak\u00e1r a 70%-t is el\u00e9rheti.<br \/>\nA feh\u00e9rj\u00e9k aminosavakb\u00f3l \u00e1ll\u00f3, magas polimerek, amelyek k\u00fcl\u00f6nf\u00e9le \u00e9lettani tev\u00e9kenys\u00e9gekkel rendelkeznek, \u00e9s fontos szerepet j\u00e1tszanak az \u00e9letben. A feh\u00e9rj\u00e9ket alkot\u00f3 22 alapvet\u0151 aminosavat, k\u00f6zt\u00fck a szelenociszteint \u00e9s a pirrolizin-lizint feh\u00e9rjeaminosavnak nevezz\u00fck. A nem feh\u00e9rje-aminosavak a feh\u00e9rje-aminosavakt\u00f3l elt\u00e9r\u0151 amino- \u00e9s karboxilcsoportokat tartalmaz\u00f3 vegy\u00fcletekre utalnak. A term\u00e9szetben t\u00f6bb ezer nem feh\u00e9rje aminosav tal\u00e1lhat\u00f3, amelyek k\u00f6z\u00fcl t\u00f6bb mint 250 a n\u00f6v\u00e9nyekb\u0151l, a t\u00f6bbi pedig mikroorganizmusokb\u00f3l, alg\u00e1kb\u00f3l \u00e9s \u00e1llatokb\u00f3l sz\u00e1rmazik. Ezekb\u0151l a term\u00e9szetes aminosavakb\u00f3l fedeztek fel n\u00e9h\u00e1ny n\u00f6v\u00e9nyv\u00e9d\u0151szer-aktivit\u00e1ssal rendelkez\u0151 vegy\u00fcletet, \u00e9s sz\u00e1mos n\u00f6v\u00e9nyv\u00e9d\u0151szer-fajta is term\u00e9szetes aminosavakat fejlesztett ki \u00e9p\u00edt\u0151elemk\u00e9nt. Az egyik fontos aminosavat, a foszfinotricint gyomirt\u00f3szerk\u00e9nt val\u00f3 felhaszn\u00e1l\u00e1sra fejlesztett\u00e9k ki. Ez\u00e9rt nagy jelent\u0151s\u00e9ggel b\u00edr a term\u00e9szetb\u0151l sz\u00e1rmaz\u00f3 peszticid-aktivit\u00e1ssal rendelkez\u0151 aminosavak keres\u00e9se. Ez a cikk f\u0151k\u00e9nt az elm\u00falt 30 \u00e9v szakirodalm\u00e1ban k\u00f6z\u00f6lt, term\u00e9szetes forr\u00e1sb\u00f3l sz\u00e1rmaz\u00f3, peszticid-aktivit\u00e1ssal rendelkez\u0151 aminosavakat foglalja \u00f6ssze, bele\u00e9rtve a szerkezeti t\u00edpusokat, a forr\u00e1sokat, a peszticid-aktivit\u00e1st \u00e9s n\u00e9h\u00e1ny hat\u00e1smechanizmust, rem\u00e9lve, hogy referenci\u00e1t ny\u00fajt az \u00faj peszticidek kutat\u00e1s\u00e1hoz \u00e9s fejleszt\u00e9s\u00e9hez.<\/p>\n<p>Jelenleg, mivel az emberek egyre nagyobb figyelmet ford\u00edtanak a k\u00f6rnyezeti \u00e9s \u00e9lelmiszerbiztons\u00e1gi k\u00e9rd\u00e9sekre, egyre nagyobb figyelmet kap a hat\u00e9kony, biztons\u00e1gos \u00e9s k\u00f6rnyezetbar\u00e1t \u00faj n\u00f6v\u00e9nyv\u00e9d\u0151szer-fajt\u00e1k kifejleszt\u00e9se. Sz\u00e1mos, a term\u00e9szetben el\u0151fordul\u00f3 aminosav er\u0151s v\u00e9dekez\u0151 hat\u00e1ssal van a gyomokra, k\u00e1ros gomb\u00e1kra, bakt\u00e9riumokra \u00e9s k\u00e1rtev\u0151kre. N\u00e9h\u00e1nyat m\u00e1r kereskedelmi mez\u0151gazdas\u00e1gi term\u00e9kk\u00e9 fejlesztettek, mint p\u00e9ld\u00e1ul a glifoz\u00e1tot, amelyet L-foszfomicin (10) alap\u00fa k\u00e9miai szint\u00e9zissel fejlesztettek ki, \u00e9s amely az ut\u00f3bbi \u00e9vek egyik legsikeresebb gyomirt\u00f3szere, amelyet mikrobi\u00e1lis term\u00e9szetes term\u00e9kek felhaszn\u00e1l\u00e1s\u00e1val fejlesztettek ki. A Pseudomonas syringae \u00e1ltal termelt koronamicinnek (33) olyan \u00e9lettani funkci\u00f3i vannak, mint a n\u00f6v\u00e9nyi n\u00f6veked\u00e9s szab\u00e1lyoz\u00e1sa, a klorofilltartalom n\u00f6vel\u00e9se \u00e9s a n\u00f6v\u00e9nyi stresszel szembeni ellen\u00e1ll\u00e1s fokoz\u00e1sa alacsony koncentr\u00e1ci\u00f3ban. A K\u00ednai Mez\u0151gazdas\u00e1gi Egyetem \u00e9s m\u00e1s int\u00e9zm\u00e9nyek sikeresen fejlesztett\u00e9k ki n\u00f6v\u00e9nyi n\u00f6veked\u00e9sszab\u00e1lyoz\u00f3k\u00e9nt. Vannak olyan term\u00e9szetes aminosavak is, amelyeknek j\u00f3 alkalmaz\u00e1si lehet\u0151s\u00e9gei vannak a mez\u0151gazdas\u00e1gi termel\u00e9sben, mint p\u00e9ld\u00e1ul a term\u00e9szetes feh\u00e9rje-aminosavak, a metionin (1), lizin (2), triptof\u00e1n (3), leucin (4) \u00e9s tirozin (5), amelyek az anyagcsere-\u00fatvonalakon kereszt\u00fcl visszacsatolt g\u00e1tl\u00e1ssal rendelkeznek a gyomirt\u00f3 hat\u00e1s kiv\u00e1lt\u00e1s\u00e1ra. Ezek felhaszn\u00e1lhat\u00f3k az olyan parazita gyomok, mint a Leymus chinensis \u00e9s az egyiptomi aranyvessz\u0151 biol\u00f3giai v\u00e9dekez\u00e9s\u00e9re. N\u00e9h\u00e1ny, a n\u00f6v\u00e9nyek \u00e1ltal termelt nem feh\u00e9rje aminosav allelopatikus anyagk\u00e9nt g\u00e1tolhatja a k\u00f6rnyez\u0151 versenyt\u00e1rsakat, mint p\u00e9ld\u00e1ul az acacetin (6), \u03b4-hidroxileucin (11), L-kumarin (14), L-DOPA (20), \u03b2-(3-izoxazolin-5-on-2-il)-alanin (24), \u00e9s a h\u00fcvelyes n\u00f6v\u00e9nyek \u00e1ltal termelt mim\u00f3za (26), amelyek mind olyan aminosav-allelopatikus anyagok, amelyek szelekt\u00edven g\u00e1tolhatj\u00e1k m\u00e1s n\u00f6v\u00e9nyek n\u00f6veked\u00e9s\u00e9t, a h\u00fcvelyesekre \u00e9s a f\u0171f\u00e9l\u00e9kre kev\u00e9s hat\u00e1ssal. Ez\u00e9rt a mez\u0151gazdas\u00e1gi termel\u00e9sben gyomirt\u00f3szerk\u00e9nt fejleszthet\u0151k. A finomlevel\u0171 csenkesz gy\u00f6kerei \u00e1ltal szekret\u00e1lt tirozin (19) szint\u00e9n er\u0151s \u00e9s hat\u00e9kony allelopatikus anyag, amely \u03bc mol\/l koncentr\u00e1ci\u00f3ban n\u00f6veked\u00e9st g\u00e1tl\u00f3 hat\u00e1st fejt ki k\u00fcl\u00f6nb\u00f6z\u0151 n\u00f6v\u00e9nyekre. A mez\u0151gazdas\u00e1gi termel\u00e9sben sz\u00e9les spektrum\u00fa herbicidk\u00e9nt haszn\u00e1lhat\u00f3. Az 5-ALA (46) r\u00e9szt vesz a n\u00f6v\u00e9nyek n\u00f6veked\u00e9sszab\u00e1lyoz\u00e1si folyamat\u00e1ban, \u00e9s a fito\u00f6sztrog\u00e9nekhez hasonl\u00f3 \u00e9lettani aktivit\u00e1ssal rendelkezik. N\u00f6v\u00e9nyi n\u00f6veked\u00e9sszab\u00e1lyoz\u00f3k\u00e9nt haszn\u00e1lhat\u00f3 a mez\u0151gazdas\u00e1gi termel\u00e9sben. A term\u00e9szetes aminosavak b\u0151s\u00e9ges forr\u00e1sb\u00f3l sz\u00e1rmaznak, \u00e9s sz\u00e9les k\u00f6r\u0171 n\u00f6v\u00e9nyv\u00e9d\u0151szer-aktivit\u00e1ssal rendelkeznek, de a legt\u00f6bb ilyen vegy\u00fclet hat\u00e1smechanizmus\u00e1t tov\u00e1bb kell tanulm\u00e1nyozni ahhoz, hogy a n\u00f6v\u00e9nyv\u00e9d\u0151szerek ter\u00fclet\u00e9n val\u00f3 alkalmaz\u00e1sukat kiterjeszthess\u00fck.<\/p>","protected":false},"excerpt":{"rendered":"<p>Research progress on active amino acids of pesticides from natural sources Natural products have always been an important source of drugs and drug lead compounds. According to the 2014 global pesticide sales statistics, natural product based pesticides accounted for approximately 21% of total sales over the past 60 years. If pesticides developed based on natural [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Research progress on active amino acids of pesticides from natural sources - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/hu\/termeszetes-forrasok\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research progress on active amino acids of pesticides from natural sources - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research progress on active amino acids of pesticides from natural sources Natural products have always been an important source of drugs and drug lead compounds. 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