{"id":8464,"date":"2024-08-14T15:10:34","date_gmt":"2024-08-14T15:10:34","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8464"},"modified":"2024-08-14T15:10:34","modified_gmt":"2024-08-14T15:10:34","slug":"soil-derived-streptomyces","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/talajbol-szarmazo-streptomyces\/","title":{"rendered":"A talajb\u00f3l sz\u00e1rmaz\u00f3 Streptomyces sp. CPCC 203679 m\u00e1sodlagos metabolitjainak vizsg\u00e1lata"},"content":{"rendered":"<p>A talajb\u00f3l sz\u00e1rmaz\u00f3 Streptomyces sp. CPCC 203679 m\u00e1sodlagos metabolitjainak vizsg\u00e1lata<br \/>\nAz aktinobakt\u00e9riumok fontos forr\u00e1st jelentenek az \u00faj antibiotikumok felfedez\u00e9s\u00e9ben, mivel sz\u00e1mos akt\u00edv, v\u00e1ltozatos szerkezet\u0171 term\u00e9szetes term\u00e9ket k\u00e9pesek el\u0151\u00e1ll\u00edtani. A Streptomyces a domin\u00e1ns aktinomycetes nemzets\u00e9g, amelyb\u0151l a legt\u00f6bb hat\u00e1sos fajr\u00f3l sz\u00e1moltak be. Sz\u00e9les k\u00f6rben elterjedt a talajban, az \u00e9desv\u00edzben, a tengeri k\u00f6rnyezetben \u00e9s egyes szervezetekben. A Streptomyces arr\u00f3l ismert, hogy sokf\u00e9le akt\u00edv, v\u00e1ltozatos szerkezeti t\u00edpus\u00fa m\u00e1sodlagos metabolitot termel, \u00e9s a klinikai gyakorlatban gyakran haszn\u00e1lt antibiotikumok fontos forr\u00e1sa. Jelenleg a klinikai gyakorlatban haszn\u00e1lt antibiotikumok mintegy k\u00e9tharmad\u00e1t ez a mikroorganizmus nemzets\u00e9g termeli. Az ut\u00f3bbi \u00e9vekben folyamatosan sz\u00e1mos szerkezetileg \u00fajszer\u0171 \u00e9s biol\u00f3giailag akt\u00edv m\u00e1sodlagos anyagcsereterm\u00e9kr\u0151l sz\u00e1moltak be a Streptomyces nemzets\u00e9gb\u0151l, ami azt jelzi, hogy az \u00faj vezet\u0151 vegy\u00fcletek felfedez\u00e9se ebben a nemzets\u00e9gben m\u00e9g mindig nagy lehet\u0151s\u00e9geket rejt mag\u00e1ban. Kutat\u00f3csoportunk az el\u0151zetes biol\u00f3giai aktivit\u00e1s-sz\u0171r\u00e9s sor\u00e1n felfedezett egy talajb\u00f3l sz\u00e1rmaz\u00f3 Streptomyces sp. CPCC 203679 t\u00f6rzset. Ferment\u00e1ci\u00f3s leves\u00e9nek nyers kivonata j\u00f3 antibakteri\u00e1lis aktivit\u00e1ssal rendelkezik. Ebben a tanulm\u00e1nyban k\u00fcl\u00f6nb\u00f6z\u0151 modern kromatogr\u00e1fi\u00e1s \u00e9s spektroszk\u00f3piai technik\u00e1kat alkalmaztunk a t\u00f6rzs m\u00e1sodlagos metabolitjainak el\u0151zetes izol\u00e1l\u00e1s\u00e1ra, tiszt\u00edt\u00e1s\u00e1ra \u00e9s szerkezeti azonos\u00edt\u00e1s\u00e1ra, \u00e9s 9 vegy\u00fcletet kaptunk (l\u00e1sd az 1. \u00e1br\u00e1t). Az 1-8 vegy\u00fcleteket in vitro antibakteri\u00e1lis \u00e9s citotoxikus aktivit\u00e1suk szempontj\u00e1b\u00f3l vizsg\u00e1lt\u00e1k.<\/p>\n<p>&nbsp;<\/p>\n<p>A talajb\u00f3l sz\u00e1rmaz\u00f3 Streptomyces sp. CPCC 203679 ferment\u00e1ci\u00f3s leves\u00e9b\u0151l kilenc vegy\u00fcletet izol\u00e1ltak, k\u00f6zt\u00fck zs\u00edrsavakat, alkaloidokat \u00e9s ciklikus dipeptideket. Az 1. vegy\u00fclet egy \u00faj zs\u00edrsavvegy\u00fclet, a 3. vegy\u00fcletet pedig el\u0151sz\u00f6r izol\u00e1lt\u00e1k talajb\u00f3l sz\u00e1rmaz\u00f3 Streptomycesb\u0151l. A farmakol\u00f3giai aktivit\u00e1s \u00e9rt\u00e9kel\u00e9s\u00e9nek eredm\u00e9nyei azt mutatt\u00e1k, hogy az 1-8 vegy\u00fcletek nem mutattak jelent\u0151s antibakteri\u00e1lis \u00e9s tumorellenes aktivit\u00e1st. A 2. vegy\u00fclet az alkaloidok oszt\u00e1ly\u00e1ba tartozik, \u00e9s sz\u00e9les k\u00f6rben jelen van mikroorganizmusokban, p\u00e9ld\u00e1ul aktinomic\u00e9t\u00e1kban, bakt\u00e9riumokban \u00e9s gomb\u00e1kban, p\u00e9ld\u00e1ul a Streptomyces Bacillus\u3001Aspergillus\u3001Alternaria\u3002 A 3. vegy\u00fclet az indol-alkaloidok oszt\u00e1ly\u00e1ba tartozik, \u00e9s el\u0151sz\u00f6r 1965-ben jelentett\u00e9k be. Ezt a vegy\u00fcletet olyan nemzets\u00e9gekb\u0151l is jelentett\u00e9k, mint a Bacillus, Balansia, Edwardsiella stb. Az irodalmi jelent\u00e9sek szerint a 3. vegy\u00fcletnek k\u00f6rnyezetszennyez\u00e9s elleni hat\u00e1sa van, \u00e9s bizonyos g\u00e1tl\u00f3 hat\u00e1st fejt ki a pajzstetvek l\u00e1rv\u00e1ira. Az ED50 \u00e9rt\u00e9ke 18,6 \u03bc mol\/l. A ciklikus dipeptidek a term\u00e9szet legkisebb ciklikus peptidjei, amelyek sz\u00e9les k\u00f6rben jelen vannak a n\u00f6v\u00e9nyek, \u00e1llatok \u00e9s mikroorganizmusok anyagcsere-term\u00e9keiben, \u00e9s olyan tev\u00e9kenys\u00e9gekkel rendelkeznek, mint az antibakteri\u00e1lis, daganatellenes, neuroprotekt\u00edv \u00e9s antitrombotikus tulajdons\u00e1gok. Ebben a vizsg\u00e1latban nem izol\u00e1ltak jelent\u0151s biol\u00f3giai aktivit\u00e1ssal rendelkez\u0151 m\u00e1sodlagos metabolitokat, ami annak tudhat\u00f3 be, hogy az akt\u00edv metabolitok bioszintetikus g\u00e9ncsoportjai nem aktiv\u00e1l\u00f3dtak a jelenlegi teny\u00e9szt\u00e9si k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt, vagy az akt\u00edv metabolitok alacsony termel\u00e9se miatt nem izol\u00e1lt\u00e1k \u0151ket. A j\u00f6v\u0151ben megpr\u00f3b\u00e1ljuk optimaliz\u00e1lni a teny\u00e9szt\u00e9si k\u00f6r\u00fclm\u00e9nyeket a m\u00e1sodlagos metabolitok szerkezeti diverzit\u00e1s\u00e1nak n\u00f6vel\u00e9se \u00e9rdek\u00e9ben, \u00e9s tov\u00e1bb kombin\u00e1ljuk az antibakteri\u00e1lis aktivit\u00e1s \u00e9rt\u00e9kel\u00e9s\u00e9t, hogy szerkezetileg \u00fajszer\u0171 \u00e9s jelent\u0151sen akt\u00edv m\u00e1sodlagos metabolitokat nyerj\u00fcnk.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on secondary metabolites of soil derived Streptomyces sp. CPCC 203679 Actinobacteria are an important resource for discovering new antibiotics, as they can produce a variety of active natural products with diverse structural types. Streptomyces is the dominant genus of actinomycetes, with the highest number of reported effective species. It is widely distributed in soil, [&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>Study on secondary metabolites of soil derived Streptomyces sp. CPCC 203679 - 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\/talajbol-szarmazo-streptomyces\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on secondary metabolites of soil derived Streptomyces sp. 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