{"id":8261,"date":"2024-08-11T21:08:33","date_gmt":"2024-08-11T21:08:33","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8261"},"modified":"2024-08-11T21:08:33","modified_gmt":"2024-08-11T21:08:33","slug":"endophytic-fungi-in-mangrove-forests","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/tr\/mangrov-ormanlarindaki\u0307-endofi\u0307ti\u0307k-mantarlar\/","title":{"rendered":"Mangrov Ormanlar\u0131ndaki Endofitik Mantarlardan Elde Edilen Nitrofuran SAS10 Metabolitleri \u00dczerine Ara\u015ft\u0131rma"},"content":{"rendered":"<p>Mangrov Ormanlar\u0131ndaki Endofitik Mantarlardan Elde Edilen Nitrofuran SAS10 Metabolitleri \u00dczerine Ara\u015ft\u0131rma<br \/>\nMangrov ormanlar\u0131 y\u00fcksek s\u0131cakl\u0131k, y\u00fcksek tuzluluk, d\u00fc\u015f\u00fck oksijen, suyla t\u0131kanm\u0131\u015f toprak, gelgit hareketleri, g\u00fc\u00e7l\u00fc r\u00fczgarlar ve dalgalar gibi zorlu ortamlarda ya\u015far ve mantarlar, bakteriler ve di\u011fer mikroorganizmalar i\u00e7in benzersiz ya\u015fam alanlar\u0131 sa\u011flar. Mangrovlardan elde edilen mantarlar, benzersiz ya\u015fam ortamlar\u0131 nedeniyle yeni ve olduk\u00e7a aktif ikincil metabolitler \u00fcretir ve \u00e7e\u015fitli anti-enflamatuar ila\u00e7lar, yeni antibiyotikler, antifungal ila\u00e7lar ve antikanser ila\u00e7lar gibi \u00f6nc\u00fc bile\u015fiklerin ke\u015ffine \u00f6nemli katk\u0131larda bulunmu\u015ftur. Aspergillus fumigatus, \u00e7o\u011funlukla toprakta ya\u015fayan saprofitik besleyici bir mantard\u0131r. \u0130nvazif aspergillozun en yayg\u0131n patojenik bakterisidir ve sporlar\u0131 ve baz\u0131 metabolik bile\u015fenleri hava yoluyla kolayca bula\u015farak fungal alerjik ast\u0131m, varyant reaktif bronkopulmoner aspergilloz ve invazif pulmoner aspergilloz gibi insan akci\u011fer hastal\u0131\u011f\u0131 enfeksiyonlar\u0131na neden olur. Aspergillus cinsi, y\u00fcksek hayatta kalma adaptasyonu, g\u00fc\u00e7l\u00fc \u00fcreme yetene\u011fi ve \u00e7e\u015fitli metabolitleri ile d\u00fcnya \u00e7ap\u0131nda da\u011f\u0131lm\u0131\u015ft\u0131r. Literat\u00fcr raporlar\u0131na g\u00f6re, 2006'dan 2016'ya kadar Aspergillus niger'den iyi aktiviteye sahip 220'den fazla ikincil metabolit izole edilmi\u015ftir. Ana metabolitler aras\u0131nda poliketid bile\u015fikleri, diketopiperazin t\u00fcrevleri, alkaloidler, aflatoksinler ve kinolin t\u00fcrevleri bulunmaktad\u0131r. Bunlar aras\u0131nda dimerik naftopiranon bile\u015fikleri \u00e7e\u015fitli patojenik bakterilere kar\u015f\u0131 orta derecede antibakteriyel aktiviteye sahiptir, \u00e7e\u015fitli kanser h\u00fccrelerine kar\u015f\u0131 belirli inhibit\u00f6r aktivite g\u00f6sterir ve ayr\u0131ca mutajenik, antioksidan ve ilgili enzim inhibisyon aktivitelerine sahiptir. Ara\u015ft\u0131rma grubumuzun \u00f6n \u00e7al\u0131\u015fmalar\u0131, Hainan Eyaleti, Dongzhaigang Do\u011fa Rezervi'ndeki mangrov bitkilerinden elde edilen endofitik mantar Aspergillus fumigatus SAS10'un pirin\u00e7 fermantasyonu ve yeti\u015ftiricili\u011fi s\u0131ras\u0131nda metabolitler a\u00e7\u0131s\u0131ndan zengin oldu\u011funu g\u00f6stermi\u015ftir. \u00d6nceki \u00e7al\u0131\u015fmalarda bu t\u00fcrden 5 piranon bile\u015fi\u011fi ve 2 ester bile\u015fi\u011fi elde edilmi\u015ftir. Bu makale, \u00f6nceki \u00e7al\u0131\u015fmalara dayanarak, benzersiz yap\u0131lara ve \u00f6nemli antibakteriyel aktiviteye sahip \u00f6nc\u00fc bile\u015fikleri ke\u015ffetmek amac\u0131yla pirin\u00e7 fermantasyon metabolitlerinin kimyasal bile\u015fimini ve antibakteriyel aktivitesini ara\u015ft\u0131rmaya devam etmektedir.<\/p>\n<p>&nbsp;<\/p>\n<p>Ara\u015ft\u0131rma grubumuz, mangrovlardaki endofitik mantar Aspergillus fumigatus SAS10'dan elde edilen ikincil metabolitlerin kimyasal bile\u015fimini incelemi\u015ftir. \u00c7e\u015fitli ay\u0131rma, safla\u015ft\u0131rma ve tan\u0131mlama teknikleri kullanarak, fermantasyon suyundan yedi dimerik naftopiranon bile\u015fi\u011fi ve bir naftopiranon a\u00e7\u0131sal monomeri \u00e7\u0131kard\u0131k ve izole ettik. T\u00fcm bile\u015fikler, G\u00fcney \u00c7in Denizi'ndeki mangrovlarda bulunan endofitik mantar Aspergillus fumigatus'un yeni rapor edilen ikincil metabolitleri olup, dimerik naftopiranon bile\u015fiklerinin elde edilmesi i\u00e7in yeni bir kaynak sa\u011flamaktad\u0131r. Bile\u015fiklerin yap\u0131s\u0131na ve ilgili ara\u015ft\u0131rmalara dayanarak, biyosentetik yollar\u0131n\u0131n asetik asit malonik asit yolu oldu\u011funu tahmin ediyoruz (bkz. \u015eekil 2). Yedi asetil CoA molek\u00fcl\u00fc, do\u011frusal naftopiranon ana \u00e7ekirdekleri (bile\u015fik 8 ve 11 gibi) ve a\u00e7\u0131sal naftopiranon ana \u00e7ekirdekleri (bile\u015fik 9 ve 10 gibi) elde etmek i\u00e7in bir dizi reaksiyondan ge\u00e7ebilir. Daha sonra, Gip1 ile ilgili enzimlerin etkisi alt\u0131nda, naftopiranon monomerinin hidroksil grubu \u00fczerindeki bir elektron, ba\u011fl\u0131 bir oksijen serbest radikali olu\u015fturmak \u00fczere uzakla\u015ft\u0131r\u0131l\u0131r. Konjuge sistemdeki elektron yeniden d\u00fczenlenmesinden sonra, monomer \u00fczerindeki karbon aktive edilir ve iki karbon aktive edilmi\u015f monomer kendi ba\u015flar\u0131na veya dimer 1-7 olu\u015fturmak \u00fczere birbirlerine ba\u011flan\u0131r.<\/p>\n<p>Literat\u00fcr raporlar\u0131na g\u00f6re, bu t\u00fcr bile\u015fikler antibakteriyel ve anti-t\u00fcm\u00f6r y\u00f6nlerinden iyi aktivite sergilemektedir. Bile\u015fik 1 ve 4, insan pankreas kanseri h\u00fccresi PANC-1, meme kanseri h\u00fccresi MDA-MB-231, insan kolon kanseri h\u00fccresi Caco-2 ve yumurtal\u0131k kanseri h\u00fccresi SK-OV-3 \u00fczerinde belirli inhibit\u00f6r aktivite g\u00f6stermi\u015ftir. Bunlar aras\u0131nda, bile\u015fik 1, 8.25 \u00b1 2.20 \u03bc M IC50 de\u011feri ile PANC-1 h\u00fccrelerine g\u00fc\u00e7l\u00fc sitotoksisite g\u00f6stermi\u015ftir; 2. 6 ve 8 iyi antibakteriyel (Bacillus subtilis, Escherichia coli ve Pseudomonas fluorescens) ve antifungal (Pseudomonas aeruginosa ve Candida albicans) aktivitelere sahiptir, 2 \u00e7ift Bacillus subtilis ve Pseudomonas fluorescens 1,9 \u03bcg\/mL M\u0130K de\u011ferine sahiptir (pozitif kontroller penisilin: 0.78 \u03bc g\/mL) ve 6 Pseudomonas fluorescens ve Trichophyton rubrum \u00e7ifti 7,8 \u03bc g\/mL M\u0130K de\u011ferine sahiptir (pozitif kontroller penisilin: 0,78 \u03bc g\/mL ve ketokonazol: 3,9 \u03bc g\/mL); 1. 4, 6 ve 7 Candida albicans, Escherichia coli ve Staphylococcus aureus'a kar\u015f\u0131 zay\u0131f antibakteriyel etkiler g\u00f6stermi\u015ftir (birincisi i\u00e7in pozitif kontrol amfoterisin B iken, son ikisi i\u00e7in pozitif kontrol ampisilin sodyumdur). Antibakteriyel aktivitemiz, 1-8 bile\u015fiklerinin Staphylococcus aureus, Escherichia coli ve iki t\u00fcr metisiline diren\u00e7li Staphylococcus aureus'a kar\u015f\u0131 de\u011fi\u015fen derecelerde inhibit\u00f6r aktiviteye sahip oldu\u011funu g\u00f6stermektedir. Bunlar aras\u0131nda bile\u015fik 6, metisiline diren\u00e7li Staphylococcus aureus'a (MRSA N315) kar\u015f\u0131 32,42 \u03bc g\/mL IC50 de\u011ferine sahiptir. Ayr\u0131ca, dimerik naftopiranonun Staphylococcus aureus (S. aureus ATCC 29213) ve iki metisiline diren\u00e7li Staphylococcus aureus'a (MRSA N315 ve MRSA NCTC 10442) kar\u015f\u0131 inhibit\u00f6r aktivitesi genellikle lineer naftopiranon monomerlerinden daha g\u00fc\u00e7l\u00fcd\u00fcr. Farkl\u0131 konfig\u00fcrasyonlara (do\u011frusal ve a\u00e7\u0131sal) sahip dimerik naftopiranon bile\u015fiklerinin antibakteriyel aktivitesi de bir dereceye kadar de\u011fi\u015fmektedir. Gelecekte, dimerik naftopiranon bile\u015fiklerinin antibakteriyel yap\u0131-aktivite ili\u015fkisi \u00fczerine derinlemesine ara\u015ft\u0131rmalar yaparak bu yeni antibakteriyel ajan t\u00fcr\u00fcn\u00fcn geli\u015ftirilmesi i\u00e7in temel olu\u015fturaca\u011f\u0131z.<\/p>","protected":false},"excerpt":{"rendered":"<p>Research on Metabolites of Nitrofurans SAS10 from Endophytic Fungi in Mangrove Forests Mangrove forests live in harsh environments such as high temperature, high salinity, low oxygen, waterlogged soil, tidal movements, strong winds, and waves, providing unique habitats for fungi, bacteria, and other microorganisms. Fungi derived from mangroves produce novel and highly active secondary metabolites due [&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 on Metabolites of Nitrofurans SAS10 from Endophytic Fungi in Mangrove Forests - 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\/tr\/mangrov-ormanlarindaki\u0307-endofi\u0307ti\u0307k-mantarlar\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research on Metabolites of Nitrofurans SAS10 from Endophytic Fungi in Mangrove Forests - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research on Metabolites of Nitrofurans SAS10 from Endophytic Fungi in Mangrove Forests Mangrove forests live in harsh environments such as high temperature, high salinity, low oxygen, waterlogged soil, tidal movements, strong winds, and waves, providing unique habitats for fungi, bacteria, and other microorganisms. 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