Shaik Mobeen, Girija Sankar G, Iswarya M, Rajitha P
Department of Pharmaceutical Biotechnology, A.U. College of Pharmaceutical Sciences, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India.
J Genet Eng Biotechnol. 2017 Jun;15(1):87-94. doi: 10.1016/j.jgeb.2017.02.004. Epub 2017 Mar 23.
The significance and frequency of marine microorganisms as producers of bioactive metabolites-a natural source of drug discovery had varied significantly during the last decades, making marine ecosystem a huge treasure trove of novel isolates and novel compounds. Among the twelve actinomycetes isolated from marine sediment sample (Lat. 17°41'962″N, Long. 83°19'633″E), amylase, protease, lipase and cellulase activities were exhibited by 8,7,4,3 isolates respectively. Five isolates exhibited l-asparaginase activity, while 5, 6, 2 isolates exhibited antibacterial, antifungal and antimicrobial activities respectively. One isolate VMS-A10 efficiently producing alpha-amylase (25.53 ± 0.50 U/mL), protease (19.26 ± 0.25 U/mL), lipase (36.25 ± 0.10 U/mL), cellulase (14.43 ± 0.513 U/mL), l-asparaginase (0.125 ± 0.004 U/mL), antimicrobial metabolites against (503.33 ± 5.77 U/mL) (536.66 ± 5.77 U/mL) (533.33 ± 5.77 U/mL) (500.00 ± 10.0 U/mL) (538.33 ± 5.77 U/mL), (353.33 ± 11.54 U/mL) and (443.33 ± 15.27 U/mL) was selected, identified on the basis of morphological, cultural, physiological, and biochemical properties together with 16S rDNA sequence, designated as and sequencing product (1490 bp) was deposited in the GenBank database under accession number Culture Deposit No: . Isolation and characterization of each potential actinobacteria having immense industrial and therapeutic value on an unprecedented scale from marine sediments of Visakhapatnam coast will have a burgeoning effect.
在过去几十年中,海洋微生物作为生物活性代谢产物生产者的重要性和频率发生了显著变化,海洋微生物是药物发现的天然来源,这使得海洋生态系统成为新型分离物和新型化合物的巨大宝库。从海洋沉积物样本(北纬17°41'962″,东经83°19'633″)中分离出的12株放线菌中,分别有8、7、4、3株表现出淀粉酶、蛋白酶、脂肪酶和纤维素酶活性。5株表现出L-天冬酰胺酶活性,而5、6、2株分别表现出抗菌、抗真菌和抗微生物活性。选择了一株高效产生α-淀粉酶(25.53±0.50U/mL)、蛋白酶(19.26±0.25U/mL)、脂肪酶(36.25±0.10U/mL)、纤维素酶(14.43±0.513U/mL)、L-天冬酰胺酶(0.125±0.004U/mL)、对(503.33±5.77U/mL)(536.66±5.77U/mL)(533.33±5.77U/mL)(500.00±10.0U/mL)(538.33±5.77U/mL)、(353.33±11.54U/mL)和(443.33±15.27U/mL)的抗微生物代谢产物的分离株VMS-A10,根据形态、培养、生理和生化特性以及16S rDNA序列进行鉴定,命名为,测序产物(1490bp)保藏于GenBank数据库,登录号为保藏号为。从维沙卡帕特南海岸的海洋沉积物中以前所未有的规模分离和表征每一种具有巨大工业和治疗价值的潜在放线菌将产生蓬勃发展的影响。